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Virginia Commonwealth University
1.
Sostak, Brendan E.
Effects of constant vs. fluctuating temperatures on performance and life history of the herbivorous pest Lymantria dispar (Lepidoptera: Eribidae).
Degree: MS, Environmental Studies, 2015, Virginia Commonwealth University
URL: https://doi.org/10.25772/RSYD-W498 
;
https://scholarscompass.vcu.edu/etd/4021
► The role of temperature variation in organismal performance is understudied, but is critically important for understanding the response of biodiversity to climate change. To…
(more)
▼ The role of temperature variation in organismal performance is understudied, but is critically important for understanding the response of biodiversity to climate change. To address this issue in herbivorous insects, I studied the direct and interactive effects of thermal regime (constant vs. fluctuating temperatures) and nutrition (dietary nitrogen) on gypsy moth (
Lymantria dispar) performance under laboratory conditions. Predictions for differences between constant and fluctuating thermal conditions were derived from Jensen’s inequality, and artificial diets of differing nutritional quality were made by modifying nitrogen (casein) content. Larvae were reared in the laboratory under four temperature regimes (22°C constant, 22°C fluctuating (±6°C), 28°C constant, and 28°C fluctuating (±6°C)) and two diet treatments (high N, and low N). Gravimetric analyses were also conducted to calculate nutritional indices and assess the short-term effects of temperature and diet quality on fourth instar larvae growth efficiencies. Consistent with predictions from Jensen’s inequality, fluctuating thermal conditions significantly reduced larval performance in both sexes across ontogeny. Low quality diet also reduced performance, but interactions between diet and thermal regime were only found in early instars.
Advisors/Committee Members: Salvatore J. Agosta, Lesley P. Bulluck, Kristine Grayson, Derek Johnson.
Subjects/Keywords: Other Ecology and Evolutionary Biology
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APA (6th Edition):
Sostak, B. E. (2015). Effects of constant vs. fluctuating temperatures on performance and life history of the herbivorous pest Lymantria dispar (Lepidoptera: Eribidae). (Thesis). Virginia Commonwealth University. Retrieved from https://doi.org/10.25772/RSYD-W498 ; https://scholarscompass.vcu.edu/etd/4021
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Sostak, Brendan E. “Effects of constant vs. fluctuating temperatures on performance and life history of the herbivorous pest Lymantria dispar (Lepidoptera: Eribidae).” 2015. Thesis, Virginia Commonwealth University. Accessed April 18, 2021.
https://doi.org/10.25772/RSYD-W498 ; https://scholarscompass.vcu.edu/etd/4021.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Sostak, Brendan E. “Effects of constant vs. fluctuating temperatures on performance and life history of the herbivorous pest Lymantria dispar (Lepidoptera: Eribidae).” 2015. Web. 18 Apr 2021.
Vancouver:
Sostak BE. Effects of constant vs. fluctuating temperatures on performance and life history of the herbivorous pest Lymantria dispar (Lepidoptera: Eribidae). [Internet] [Thesis]. Virginia Commonwealth University; 2015. [cited 2021 Apr 18].
Available from: https://doi.org/10.25772/RSYD-W498 ; https://scholarscompass.vcu.edu/etd/4021.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Sostak BE. Effects of constant vs. fluctuating temperatures on performance and life history of the herbivorous pest Lymantria dispar (Lepidoptera: Eribidae). [Thesis]. Virginia Commonwealth University; 2015. Available from: https://doi.org/10.25772/RSYD-W498 ; https://scholarscompass.vcu.edu/etd/4021
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Michigan Technological University
2.
Leguizamon, Carmen.
ASSOCIATIONS BETWEEN INVASIVE EURASIAN WATERMILFOIL AND LITTORAL FISH AND INVERTEBRATE COMMUNITIES IN THE KEWEENAW WATERWAY OF LAKE SUPERIOR.
Degree: MS, Department of Biological Sciences, 2017, Michigan Technological University
URL: https://digitalcommons.mtu.edu/etdr/519
► The invasion of Eurasian watermilfoil (Myriophyllum spicatum) can influence littoral zone communities within lakes. Its formation of dense mats at the water surface can…
(more)
▼ The invasion of Eurasian watermilfoil (Myriophyllum spicatum) can influence littoral zone communities within lakes. Its formation of dense mats at the water surface can suppress native macrophyte growth and impact fish diets and community structure, as well as invertebrate assemblages. However, in the colder waters of the upper Great Lakes region, Eurasian watermilfoil is patchily distributed and integrates more with the native macrophyte community. In order to identify the associations of invasive Eurasian watermilfoil and the littoral communities of the Keweenaw Waterway of Michigan’s Upper Peninsula, we sampled invertebrates, fish, and macrophytes at sites that represented a gradient of Eurasian watermilfoil abundance, as well as habitats with dense and sparse native vegetation. We hypothesized that areas dominated by Eurasian watermilfoil would exhibit less rich and diverse communities of native macrophytes, fish, and invertebrates. We also hypothesized that invertebrate abundances would be greatest in more invaded habitats as a result of reduced predation, but that fish would be more abundant at moderate invasion levels due to optimal foraging efficiency. Our results indicate that, overall, the more vegetated habitats supported more abundant and rich fish and invertebrate communities. However, while habitats with more abundant Eurasian watermilfoil tended to support more abundant fish communities, the most invaded habitats supported fewer fish, and reduced species richness and diversity. While invertebrate abundance also increased along with Eurasian watermilfoil abundance, more of the variation in invertebrate abundance was explained by native macrophytes. At the abundances observed in the Keweenaw Waterway, Eurasian watermilfoil appears to have little impact on invertebrate taxa richness and diversity. Overall, Eurasian watermilfoil appears to provide useful habitat to fish and invertebrates where it integrates more with the native macrophtye community. Yet, if Eurasian watermilfoil is left unmanaged and continues to spread, these effects may intensify over time, leading to reductions in fish abundance and biomass.
Advisors/Committee Members: Casey Huckins.
Subjects/Keywords: Other Ecology and Evolutionary Biology
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APA (6th Edition):
Leguizamon, C. (2017). ASSOCIATIONS BETWEEN INVASIVE EURASIAN WATERMILFOIL AND LITTORAL FISH AND INVERTEBRATE COMMUNITIES IN THE KEWEENAW WATERWAY OF LAKE SUPERIOR. (Masters Thesis). Michigan Technological University. Retrieved from https://digitalcommons.mtu.edu/etdr/519
Chicago Manual of Style (16th Edition):
Leguizamon, Carmen. “ASSOCIATIONS BETWEEN INVASIVE EURASIAN WATERMILFOIL AND LITTORAL FISH AND INVERTEBRATE COMMUNITIES IN THE KEWEENAW WATERWAY OF LAKE SUPERIOR.” 2017. Masters Thesis, Michigan Technological University. Accessed April 18, 2021.
https://digitalcommons.mtu.edu/etdr/519.
MLA Handbook (7th Edition):
Leguizamon, Carmen. “ASSOCIATIONS BETWEEN INVASIVE EURASIAN WATERMILFOIL AND LITTORAL FISH AND INVERTEBRATE COMMUNITIES IN THE KEWEENAW WATERWAY OF LAKE SUPERIOR.” 2017. Web. 18 Apr 2021.
Vancouver:
Leguizamon C. ASSOCIATIONS BETWEEN INVASIVE EURASIAN WATERMILFOIL AND LITTORAL FISH AND INVERTEBRATE COMMUNITIES IN THE KEWEENAW WATERWAY OF LAKE SUPERIOR. [Internet] [Masters thesis]. Michigan Technological University; 2017. [cited 2021 Apr 18].
Available from: https://digitalcommons.mtu.edu/etdr/519.
Council of Science Editors:
Leguizamon C. ASSOCIATIONS BETWEEN INVASIVE EURASIAN WATERMILFOIL AND LITTORAL FISH AND INVERTEBRATE COMMUNITIES IN THE KEWEENAW WATERWAY OF LAKE SUPERIOR. [Masters Thesis]. Michigan Technological University; 2017. Available from: https://digitalcommons.mtu.edu/etdr/519
Utah State University
3.
Laatsch, Jamie E.
USDA Forest Service Perspectives on Forest Management in a Changing Climate.
Degree: MS, Environment and Society, 2014, Utah State University
URL: https://digitalcommons.usu.edu/etd/2299
► The Forest Service faces significant climate change-related management challenges. Understanding employee perspectives on climate change will inform potential strategies to address these challenges. By…
(more)
▼ The Forest Service faces significant climate change-related management challenges. Understanding employee perspectives on climate change will inform potential strategies to address these challenges. By analyzing data from key informant interviews and an internet survey of Forest Service employees in the Intermountain West, this study examined how Forest Service employees view and approach climate change, assessed how they perceive barriers to and opportunities for climate change adaptation within the National Forest System, and compared their perspectives across the organizational hierarchy, from district level to national policy making. The results show that although forest managers consider climate change a concern for the agency in general, they do not necessarily see how it affects the work they do personally. Although they tend to agree that climate change should be a high priority for the agency, their own ability to incorporate adaptive practices into managing a National Forest is limited by various constraints, including a lack of time, funding, and personnel, a lack of direction for on-the-ground management, and a communication gap, which has inhibited climate change-related knowledge transfer within the agency. Thus, more effective communication is needed to help forest managers see how climate change affects various aspects of forest ecosystem health in their own National Forests or districts, how climate change poses challenges to forest resilience, and what can be done to incorporate climate change considerations into their own work. The agency needs to focus on building trust, especially across its hierarchical structure, and on encouraging both vertical and horizontal information flow among employees to facilitate scientific knowledge sharing and to enhance formal and informal social networking for increased collaboration. The agency also needs to create more opportunities for district-level employees to provide feedback and get involved in climate change-related policy making, as they are a crucial source of local knowledge and experience and can be invaluable in problem-solving within the National Forest System. The insights from this study not only contribute to the Forest Service’s continuous efforts to adapt to climate change but also shed light on strategies that can be tailored by
other natural resource agencies to address various management challenges within the context of global environmental change.
Advisors/Committee Members: Zhao Ma, James Long, Barbara Bentz, ;.
Subjects/Keywords: Other Ecology and Evolutionary Biology
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APA (6th Edition):
Laatsch, J. E. (2014). USDA Forest Service Perspectives on Forest Management in a Changing Climate. (Masters Thesis). Utah State University. Retrieved from https://digitalcommons.usu.edu/etd/2299
Chicago Manual of Style (16th Edition):
Laatsch, Jamie E. “USDA Forest Service Perspectives on Forest Management in a Changing Climate.” 2014. Masters Thesis, Utah State University. Accessed April 18, 2021.
https://digitalcommons.usu.edu/etd/2299.
MLA Handbook (7th Edition):
Laatsch, Jamie E. “USDA Forest Service Perspectives on Forest Management in a Changing Climate.” 2014. Web. 18 Apr 2021.
Vancouver:
Laatsch JE. USDA Forest Service Perspectives on Forest Management in a Changing Climate. [Internet] [Masters thesis]. Utah State University; 2014. [cited 2021 Apr 18].
Available from: https://digitalcommons.usu.edu/etd/2299.
Council of Science Editors:
Laatsch JE. USDA Forest Service Perspectives on Forest Management in a Changing Climate. [Masters Thesis]. Utah State University; 2014. Available from: https://digitalcommons.usu.edu/etd/2299
Eastern Illinois University
4.
Thomas, Meagan Amanda.
Aspects of the Trophic Ecology of an Invertivorous Snake Community.
Degree: MS, 2014, Eastern Illinois University
URL: https://thekeep.eiu.edu/theses/1358
► Understanding the significance of trophic links has been of interest to ecologists for decades, likely because food web studies have the potential to reveal…
(more)
▼ Understanding the significance of trophic links has been of interest to ecologists for decades, likely because food web studies have the potential to reveal a considerable amount of information in the fields of ecosystem and community
ecology. Despite the intrinsic benefits that come from elucidating food web structures, doing so is often problematic because of the complex and dynamic nature of ecological communities. The dietary
ecology of small-bodied invertivorous snakes remains relatively understudied compared to
other snake species. Many of these species are abundant throughout their range, making them ideal organisms for studying community-level questions. I employed a combination of stable isotope analyses as well as gut and fecal material analyses to quantify the trophic niche width of five species of invertivorous snakes (genera:
Coluber, Diadophis, Opheodrys, and
Storeria) occurring in central Illinois. I investigated seasonal differences in capture rates and quantified morphometric and isotopic differences among species. I used Bayesian mixing models to determine the potential sources of C
13 and N
15 in scale, red blood cell, and plasma tissue samples. The stable isotope data, supported by the gut and fecal analyses, revealed differences in the levels of dietary specialization within the community. High levels of trophic niche overlap were detected, however, indicating that snake dietary preferences are more likely a product of taxonomic affinity and species specific life-history, rather than interspecific competition. Further studies that involve a combination of techniques can provide a more comprehensive understanding of dietary
ecology within snake communities.
Advisors/Committee Members: Stephen J. Mullin.
Subjects/Keywords: Other Ecology and Evolutionary Biology; Zoology
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APA (6th Edition):
Thomas, M. A. (2014). Aspects of the Trophic Ecology of an Invertivorous Snake Community. (Masters Thesis). Eastern Illinois University. Retrieved from https://thekeep.eiu.edu/theses/1358
Chicago Manual of Style (16th Edition):
Thomas, Meagan Amanda. “Aspects of the Trophic Ecology of an Invertivorous Snake Community.” 2014. Masters Thesis, Eastern Illinois University. Accessed April 18, 2021.
https://thekeep.eiu.edu/theses/1358.
MLA Handbook (7th Edition):
Thomas, Meagan Amanda. “Aspects of the Trophic Ecology of an Invertivorous Snake Community.” 2014. Web. 18 Apr 2021.
Vancouver:
Thomas MA. Aspects of the Trophic Ecology of an Invertivorous Snake Community. [Internet] [Masters thesis]. Eastern Illinois University; 2014. [cited 2021 Apr 18].
Available from: https://thekeep.eiu.edu/theses/1358.
Council of Science Editors:
Thomas MA. Aspects of the Trophic Ecology of an Invertivorous Snake Community. [Masters Thesis]. Eastern Illinois University; 2014. Available from: https://thekeep.eiu.edu/theses/1358
Florida International University
5.
Brantner, Emily K.
Regional evolutionary distinctiveness and endangerment as a means of prioritizing protection of endangered species.
Degree: MS, Biology, 2015, Florida International University
URL: https://digitalcommons.fiu.edu/etd/2267
;
10.25148/etd.FIDC000161
;
FIDC000161
► Conservation is costly, and choices must be made about where to best allocate limited resources. I propose a regional evolutionary diversity and endangerment (RED-E)…
(more)
▼ Conservation is costly, and choices must be made about where to best allocate limited resources. I propose a regional
evolutionary diversity and endangerment (RED-E) approach to prioritization of endangered species. It builds off of the
evolutionary diversity and global endangerment (EDGE) approach, but will allow conservation agencies to focus their efforts on species in specific regions. I used the RED-E approach to prioritize mammal and bird species listed under the U.S. Endangered Species Act (ESA), as well as to make a ranking of species without ESA critical habitat (CH), as a practical application. Regional conservation approaches differ significantly from global approaches. The RED-E approach places a high significance on the level of endangerment of a species, but also allows for very distinct species to have increased prioritization on the RED-E list. Using the CH RED-E list, the U.S. government could begin focusing resources toward endangered and genetically diverse species.
Advisors/Committee Members: John C. Withey, Maureen A. Donnelly, Kenneth J. Feeley.
Subjects/Keywords: Biodiversity; prioritization; mammals; birds; ESA; phylogenetic tree; EDGE; Evolutionary distinctiveness; Biodiversity; Biology; Ecology and Evolutionary Biology; Other Ecology and Evolutionary Biology
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APA ·
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APA (6th Edition):
Brantner, E. K. (2015). Regional evolutionary distinctiveness and endangerment as a means of prioritizing protection of endangered species. (Thesis). Florida International University. Retrieved from https://digitalcommons.fiu.edu/etd/2267 ; 10.25148/etd.FIDC000161 ; FIDC000161
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Brantner, Emily K. “Regional evolutionary distinctiveness and endangerment as a means of prioritizing protection of endangered species.” 2015. Thesis, Florida International University. Accessed April 18, 2021.
https://digitalcommons.fiu.edu/etd/2267 ; 10.25148/etd.FIDC000161 ; FIDC000161.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Brantner, Emily K. “Regional evolutionary distinctiveness and endangerment as a means of prioritizing protection of endangered species.” 2015. Web. 18 Apr 2021.
Vancouver:
Brantner EK. Regional evolutionary distinctiveness and endangerment as a means of prioritizing protection of endangered species. [Internet] [Thesis]. Florida International University; 2015. [cited 2021 Apr 18].
Available from: https://digitalcommons.fiu.edu/etd/2267 ; 10.25148/etd.FIDC000161 ; FIDC000161.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Brantner EK. Regional evolutionary distinctiveness and endangerment as a means of prioritizing protection of endangered species. [Thesis]. Florida International University; 2015. Available from: https://digitalcommons.fiu.edu/etd/2267 ; 10.25148/etd.FIDC000161 ; FIDC000161
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of South Florida
6.
Hutchings, Jack A.
No Honor Among Snails: Conspecific Competition Leads to Incomplete Drill Holes in the Naticid Gastropod Neverita delessertiana (R cluz).
Degree: 2012, University of South Florida
URL: https://scholarcommons.usf.edu/etd/4336
► The fossil record of drilling predation has been widely used to study predator-prey interactions and their relative importance on long-term evolutionary processes. Incomplete drill holes…
(more)
▼ The fossil record of drilling predation has been widely used to study predator-prey interactions and their relative importance on long-term evolutionary processes. Incomplete drill holes have been interpreted as indicators of failed attacks due to well-defended prey. However, this interpretation is based on pair-wise interactions between one predator and one prey, a condition commonly compromised in nature. The hypothesis that interference among drilling predators leads to an increase in the relative frequency of incomplete drill holes was tested in the laboratory using the naticid Neverita delessertiana (R cluz) and a common prey, the bivalve Chione elevata (Say). The experiment consisted of an isolation treatment, where predators fed alone, and a competition treatment, where predators fed in groups of three. Predators in competition were grouped into two size cohorts, small and large. All drilling attacks made by isolated predators of both size groups were successful, resulting in complete drill holes, whereas, in competition, the incomplete drilling frequencies were 6.9% for the small predator group and 21.3% for the large predator group. A range of competitive, predator-predator interactions were observed, including grappling, prey theft, and cannibalism. These results suggest that interpretations of both field and fossil data must consider the role of competitive disruption as an additional source of incomplete drill holes. The implications of other observations, including prey 'suffocation' and the resumption of incomplete drill holes after successful prey theft, are also discussed.
Subjects/Keywords: Ecology; Experimental; Failure; Predation; Prey Effectiveness; Other Ecology and Evolutionary Biology
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APA ·
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APA (6th Edition):
Hutchings, J. A. (2012). No Honor Among Snails: Conspecific Competition Leads to Incomplete Drill Holes in the Naticid Gastropod Neverita delessertiana (R cluz). (Thesis). University of South Florida. Retrieved from https://scholarcommons.usf.edu/etd/4336
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Hutchings, Jack A. “No Honor Among Snails: Conspecific Competition Leads to Incomplete Drill Holes in the Naticid Gastropod Neverita delessertiana (R cluz).” 2012. Thesis, University of South Florida. Accessed April 18, 2021.
https://scholarcommons.usf.edu/etd/4336.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Hutchings, Jack A. “No Honor Among Snails: Conspecific Competition Leads to Incomplete Drill Holes in the Naticid Gastropod Neverita delessertiana (R cluz).” 2012. Web. 18 Apr 2021.
Vancouver:
Hutchings JA. No Honor Among Snails: Conspecific Competition Leads to Incomplete Drill Holes in the Naticid Gastropod Neverita delessertiana (R cluz). [Internet] [Thesis]. University of South Florida; 2012. [cited 2021 Apr 18].
Available from: https://scholarcommons.usf.edu/etd/4336.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Hutchings JA. No Honor Among Snails: Conspecific Competition Leads to Incomplete Drill Holes in the Naticid Gastropod Neverita delessertiana (R cluz). [Thesis]. University of South Florida; 2012. Available from: https://scholarcommons.usf.edu/etd/4336
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
7.
Cole, Evan.
Understanding the complex relationships between climate, vegetation, and foraging behavior of a climate-sensitive alpine mammal in order to explain patterns of persistence.
Degree: MSEM, Environmental Management, 2017, University of San Francisco
URL: https://repository.usfca.edu/capstone/566
► Mountain ecosystems offer substantial ecosystem services but are highly sensitive to climate change. The American pika (Ochotona princeps) serves as an indicator species of…
(more)
▼ Mountain ecosystems offer substantial ecosystem services but are highly sensitive to climate change. The American pika (
Ochotona princeps) serves as an indicator species of climate change and a model organism for studying its impacts on mountain mammals. Certain aspects of plant community composition and structure can function as predictors of pika distribution, but understanding the links between climate, forage quality, and foraging behavior is necessary to identify the mediating mechanism. Pika foraging pressure help shape the local plant community, which can confound modeling efforts and must be considered when evaluating the influence of vegetation on pika persistence. Plant Secondary Metabolites (PSMs) appear to be the most important indicators of forage quality, driving winter diet selection, especially in high elevation areas with extreme seasonality. Nutritional components, such as protein, nitrogen, and water content, are more important to summer diet. Foraging selectivity for nutritional components changes in response to environmental conditions and forage availability, suggesting increased importance as climate warms and dries. While metrics of heat stress, cold stress, and water budget appear to be significant divers of pika distribution, the heterogeneity with which climate impacts pikas across their range calls for a place-based perspective. The transformation of alpine plant communities in response to climate change may further stress pika populations as preferred forage items become scarcer. Pikas highlight the complexity and idiosyncrasy of alpine ecosystems. In order to address the challenges faced by pikas, managers should identify refugia and vulnerable populations, install plants high in PSMs and nutritional components, work to control invasive plants, consider legal and regulatory protections, and expand monitoring efforts.
Advisors/Committee Members: John Callaway.
Subjects/Keywords: pika; climate change; ecology; Other Ecology and Evolutionary Biology
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APA ·
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APA (6th Edition):
Cole, E. (2017). Understanding the complex relationships between climate, vegetation, and foraging behavior of a climate-sensitive alpine mammal in order to explain patterns of persistence. (Thesis). University of San Francisco. Retrieved from https://repository.usfca.edu/capstone/566
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Cole, Evan. “Understanding the complex relationships between climate, vegetation, and foraging behavior of a climate-sensitive alpine mammal in order to explain patterns of persistence.” 2017. Thesis, University of San Francisco. Accessed April 18, 2021.
https://repository.usfca.edu/capstone/566.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Cole, Evan. “Understanding the complex relationships between climate, vegetation, and foraging behavior of a climate-sensitive alpine mammal in order to explain patterns of persistence.” 2017. Web. 18 Apr 2021.
Vancouver:
Cole E. Understanding the complex relationships between climate, vegetation, and foraging behavior of a climate-sensitive alpine mammal in order to explain patterns of persistence. [Internet] [Thesis]. University of San Francisco; 2017. [cited 2021 Apr 18].
Available from: https://repository.usfca.edu/capstone/566.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Cole E. Understanding the complex relationships between climate, vegetation, and foraging behavior of a climate-sensitive alpine mammal in order to explain patterns of persistence. [Thesis]. University of San Francisco; 2017. Available from: https://repository.usfca.edu/capstone/566
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Colorado
8.
Knight, Kevin Bracy.
Global Primate Species Decline in the Anthropocene: Threats and Triage.
Degree: PhD, 2017, University of Colorado
URL: https://scholar.colorado.edu/ebio_gradetds/105
► The Anthropocene mass extinction, or sixth mass extinction, represents a threat to global biodiversity. The only precedents for extinction at this pace are events similar…
(more)
▼ The Anthropocene mass extinction, or sixth mass extinction, represents a threat to global biodiversity. The only precedents for extinction at this pace are events similar to the K-Pg extinction of the non-avian dinosaurs and over 75% of the
other species on Earth at the time. To be effective, conservation science needs to rapidly change focus to a larger scale. In this dissertation, I explore several conservation avenues through the lenses of
ecology and economics using global primate species to examine my hypotheses. In Chapter II, I assess shared traits among primates that may indicate increased extinction risk using a hierarchical Bayesian framework. I find the traits most associated with primate species’ risk are
evolutionary relationship (i.e., closely related species are similarly endangered) and habitat specialization. In Chapter III, I combine species’ geographic ranges with historic human population maps dating back 200 years to assess whether primate species exhibit a lag in extinction after anthropogenic encroachment. I see strong evidence of extinction debt among primates; current species decline best correlates with human population density roughly 100 years in the past. In Chapter IV, I examine the role of national-scale socioeconomic factors in species risk. To do so, I test socioeconomic data for nations of the world as predictors of species risk within each nation. Analysis of socioeconomic factors show a tradeoff between the well-being of the people of a nation and primate risk. The higher the human standard of living, the greater the primate extinction risk. However, this analysis also illuminates the strength of international cooperation – species found in more countries are at less risk. In Chapter V, I explore conservation triage, a method of prioritizing which species to conserve, given limited resources. To do this, I modeled primate species extinctions across 150 years into the future under varying prioritization schemes and calculated extinction and phylogenetic diversity loss. I find triage focused on evolutionarily distinct species that are also at-risk may save more species and diversity than a method focused solely on the rarest species. The research in this dissertation supports addressing global primate extinction on a large scale – prioritizing the use of limited resources to address multiple species simultaneously.
Advisors/Committee Members: Christy M. McCain, Herbert Covert, Stacey Smith, Samuel Flaxman, Sharon Collinge.
Subjects/Keywords: conservation triage; ecology; economics; extinction; primate; conservation biology; Ecology and Evolutionary Biology; Other Ecology and Evolutionary Biology
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APA (6th Edition):
Knight, K. B. (2017). Global Primate Species Decline in the Anthropocene: Threats and Triage. (Doctoral Dissertation). University of Colorado. Retrieved from https://scholar.colorado.edu/ebio_gradetds/105
Chicago Manual of Style (16th Edition):
Knight, Kevin Bracy. “Global Primate Species Decline in the Anthropocene: Threats and Triage.” 2017. Doctoral Dissertation, University of Colorado. Accessed April 18, 2021.
https://scholar.colorado.edu/ebio_gradetds/105.
MLA Handbook (7th Edition):
Knight, Kevin Bracy. “Global Primate Species Decline in the Anthropocene: Threats and Triage.” 2017. Web. 18 Apr 2021.
Vancouver:
Knight KB. Global Primate Species Decline in the Anthropocene: Threats and Triage. [Internet] [Doctoral dissertation]. University of Colorado; 2017. [cited 2021 Apr 18].
Available from: https://scholar.colorado.edu/ebio_gradetds/105.
Council of Science Editors:
Knight KB. Global Primate Species Decline in the Anthropocene: Threats and Triage. [Doctoral Dissertation]. University of Colorado; 2017. Available from: https://scholar.colorado.edu/ebio_gradetds/105
University of Southern Mississippi
9.
Braatz, Andrea Kathryn.
An Analytical Study of Air-Sea CO2 Gas Exchange in the Northwest Mississippi Bight Region.
Degree: MS, Marine Science, 2011, University of Southern Mississippi
URL: https://aquila.usm.edu/masters_theses/217
► With the continued increase of carbon dioxide (CO2) emissions, researchers are concerned with accumulation of excess CO2 within the atmosphere. The ocean is an…
(more)
▼ With the continued increase of carbon dioxide (CO2) emissions, researchers are concerned with accumulation of excess CO2 within the atmosphere. The ocean is an important sink for the drawdown of atmospheric CO2 concentrations. Due to high spatial and temporal variability, CO2 fluxes in the coastal ocean are not as well characterized as those for the open ocean. More specifically, data for the northern Gulf of Mexico (GOM) coastal region is lacking. A time series analysis of air-sea CO2 flux rates from May through December 2009 was conducted using data collected by The University of Southern Mississippi’s Central Gulf Ocean Observing System 3-meter discus buoy, located within the northwest Mississippi Bight region (MBR). Data collected by the buoy included wind speed and direction, sea surface temperature, sea surface salinity, pressure, and pCO2. Four hypotheses were addressed. One hypothesis was the region was a weak net sink for atmospheric CO2 with an alternative hypothesis that the region was a net source that varied seasonally. Air-sea CO2 flux rates calculated from the buoy data indicated the northwest MBR was a weak net source during the month of July, but was overall a net sink for CO2 from May through December. The mean daily CO2 flux rate from May through December ranged from -4.23 to -5.96 mmol m-2 d-1. A third hypothesis was uptake of CO2 in the coastal northern GOM would exceed release of CO2 in the remainder of the GOM. Net annual flux for the entire coastal northern Gulf of Mexico region was estimated at approximately -3.78 to -5.33 Mt C yr-1, while the net annual flux for the remainder of the GOM was estimated at approximately 14.33 to 19.82 Mt C yr-1. Sea surface salinity, net primary productivity, and wind speed were the environmental variables which had the strongest correlations with CO2 flux rates. Although air-sea flux calculations should use the wind speed relative to surface water, the wind speed relative to fixed geographic coordinates (Eulerian reference frame) is customarily used. The final hypothesis was surface currents would have an appreciable affect on CO2 flux rates throughout the region. An investigation of CO2 flux rates computed from wind speeds relative to surface water resulted in a decrease in CO2 flux rates of 2.06 to 2.84%. This difference in CO2 flux rates was statistically significant; however, fell within the margin of error involved in estimating the Eulerian flux rates.
Advisors/Committee Members: Stephan D. Howden, Laodong Guo, Steven E. Lohrenz.
Subjects/Keywords: Co2; emissions; oceans; pollution; Marine Biology; Other Ecology and Evolutionary Biology
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APA (6th Edition):
Braatz, A. K. (2011). An Analytical Study of Air-Sea CO2 Gas Exchange in the Northwest Mississippi Bight Region. (Masters Thesis). University of Southern Mississippi. Retrieved from https://aquila.usm.edu/masters_theses/217
Chicago Manual of Style (16th Edition):
Braatz, Andrea Kathryn. “An Analytical Study of Air-Sea CO2 Gas Exchange in the Northwest Mississippi Bight Region.” 2011. Masters Thesis, University of Southern Mississippi. Accessed April 18, 2021.
https://aquila.usm.edu/masters_theses/217.
MLA Handbook (7th Edition):
Braatz, Andrea Kathryn. “An Analytical Study of Air-Sea CO2 Gas Exchange in the Northwest Mississippi Bight Region.” 2011. Web. 18 Apr 2021.
Vancouver:
Braatz AK. An Analytical Study of Air-Sea CO2 Gas Exchange in the Northwest Mississippi Bight Region. [Internet] [Masters thesis]. University of Southern Mississippi; 2011. [cited 2021 Apr 18].
Available from: https://aquila.usm.edu/masters_theses/217.
Council of Science Editors:
Braatz AK. An Analytical Study of Air-Sea CO2 Gas Exchange in the Northwest Mississippi Bight Region. [Masters Thesis]. University of Southern Mississippi; 2011. Available from: https://aquila.usm.edu/masters_theses/217
10.
Olejniczak, Michael J.
Forest Islands in a Sea of Urban Habitat.
Degree: 2016, Buffalo State College
URL: https://digitalcommons.buffalostate.edu/biology_theses/26
► Urban forests are poorly defined as ecological communities. Substantive links between anthropogenic landscape features and forest ecology are lacking. ‘Urbaness’ is commonly defined by human…
(more)
▼ Urban forests are poorly defined as ecological communities. Substantive links between anthropogenic landscape features and forest ecology are lacking. ‘Urbaness’ is commonly defined by human population density or land use classifications, but their use is inconsistent throughout the literature, and rarely is linked with ecological processes. Furthermore, it is unknown whether urban forests are functioning parts of a patchy urban woodland system or isolated islands amidst an ocean of unsuitable habitat. I first used digital satellite imagery and publicly available U.S. National Park data to link urban land use with forest processes. I then linked those land use classifications with the potential for urban forests to regenerate by investigating tree recruitment in the greater Buffalo, NY (U.S.) metropolitan area. If urban forests link with the greater regional forest ecosystem, then tree species richness should resemble the regional forests. However, if the urban forest patches are isolated, they should contain a subset of the regional forest richness with recruitment limited by forest patch size. Heavy urban cover predicted reduced tree and seedling richness and abundance. Moreover, tree seedling richness decreased with increasing urban land use. Tree seedling richness and abundance both declined when invasive species were present, suggesting invasive species may act as a barrier to tree recruitment. Tree recruitment was more strongly linked with forest patch size than the regional species pool, and active dispersal was limited to wind-dispersed species between urban forests. These results suggest that urban forests are isolated forest islands surrounded by an ocean of urban habitat.
Subjects/Keywords: recruitment; regeneration; urban forest; Forest Biology; Other Ecology and Evolutionary Biology
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APA (6th Edition):
Olejniczak, M. J. (2016). Forest Islands in a Sea of Urban Habitat. (Thesis). Buffalo State College. Retrieved from https://digitalcommons.buffalostate.edu/biology_theses/26
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Olejniczak, Michael J. “Forest Islands in a Sea of Urban Habitat.” 2016. Thesis, Buffalo State College. Accessed April 18, 2021.
https://digitalcommons.buffalostate.edu/biology_theses/26.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Olejniczak, Michael J. “Forest Islands in a Sea of Urban Habitat.” 2016. Web. 18 Apr 2021.
Vancouver:
Olejniczak MJ. Forest Islands in a Sea of Urban Habitat. [Internet] [Thesis]. Buffalo State College; 2016. [cited 2021 Apr 18].
Available from: https://digitalcommons.buffalostate.edu/biology_theses/26.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Olejniczak MJ. Forest Islands in a Sea of Urban Habitat. [Thesis]. Buffalo State College; 2016. Available from: https://digitalcommons.buffalostate.edu/biology_theses/26
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
11.
Tompkins, Amanda.
Behavioral Response to UVB Differs in Subalpine Populations of Daphnia Melanica.
Degree: MS, Biology, 2015, Central Washington University
URL: https://digitalcommons.cwu.edu/etd/265
► Daphnia are a genus of freshwater zooplankton that inhabit ponds and lakes. They are commonly used as a model organism because they can reproduce clonally…
(more)
▼ Daphnia are a genus of freshwater zooplankton that inhabit ponds and lakes. They are commonly used as a model organism because they can reproduce clonally and are considered a foundation species in pond ecosystems.
Daphnia melanica that inhabit the subalpine ponds of the Olympic National Park are exposed to high levels of ultraviolet radiation (UVR). UVR causes DNA damage that can be detrimental to the organism if not fixed. One way to avoid these harmful rays is to migrate to protected areas. In my study, I looked at two behaviors in
D. melanica: diel vertical migration (DVM), which involves movement down the water column, and diel horizontal migration (DHM), which involves horizontal movement to shaded areas. I tested whether Daphnia from six populations varying in transparency differ in their DVM and DHM response to three different light conditions: cool light, low UV, and high UV. As UV increased, the
Daphnia showed significantly more pronounced DVM and DHM. There were also significant differences between populations, as well as a significant interaction between population and light treatment, in DVM. I also measured a number of ecological factors for each pond, including characteristics of the surrounding vegetation and water quality. There was no significant association between any measured ecological factor and behavior of
D. melanica.
Advisors/Committee Members: Alison G. Scoville, Clay Arango, Lucinda Carnell.
Subjects/Keywords: Daphnia; Behavior; UV; Other Ecology and Evolutionary Biology; Population Biology
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APA (6th Edition):
Tompkins, A. (2015). Behavioral Response to UVB Differs in Subalpine Populations of Daphnia Melanica. (Masters Thesis). Central Washington University. Retrieved from https://digitalcommons.cwu.edu/etd/265
Chicago Manual of Style (16th Edition):
Tompkins, Amanda. “Behavioral Response to UVB Differs in Subalpine Populations of Daphnia Melanica.” 2015. Masters Thesis, Central Washington University. Accessed April 18, 2021.
https://digitalcommons.cwu.edu/etd/265.
MLA Handbook (7th Edition):
Tompkins, Amanda. “Behavioral Response to UVB Differs in Subalpine Populations of Daphnia Melanica.” 2015. Web. 18 Apr 2021.
Vancouver:
Tompkins A. Behavioral Response to UVB Differs in Subalpine Populations of Daphnia Melanica. [Internet] [Masters thesis]. Central Washington University; 2015. [cited 2021 Apr 18].
Available from: https://digitalcommons.cwu.edu/etd/265.
Council of Science Editors:
Tompkins A. Behavioral Response to UVB Differs in Subalpine Populations of Daphnia Melanica. [Masters Thesis]. Central Washington University; 2015. Available from: https://digitalcommons.cwu.edu/etd/265
12.
Akkerman, Kayla.
Transgenerational Plasticity is Sex-dependent and Persistent in Yellow Moneyflower (Mimulus guttatus).
Degree: MS, Biology, 2019, Central Washington University
URL: https://digitalcommons.cwu.edu/etd/1268
► Transgenerational phenotypic plasticity, whereby environmental cues experienced by parents alter the phenotype of their progeny, has now been documented in diverse organisms. Transmission of environmentally…
(more)
▼ Transgenerational phenotypic plasticity, whereby environmental cues experienced by parents alter the phenotype of their progeny, has now been documented in diverse organisms. Transmission of environmentally determined responses is known to occur through both maternal and paternal gametes, but the underlying mechanisms have rarely been compared. In addition, the persistence of induction over multiple generations appears to vary widely but has been characterized for relatively few systems. Yellow monkeyflower (
Mimulus guttatus) is known to exhibit transgenerational induction of increased glandular trichome production in response to simulated insect damage. Here we test for differences between maternal and paternal transmission of this response and examine its persistence over five generations following damage. Maternal and paternal damage resulted in similar and apparently additive increases in progeny trichome production. Treatment of germinating seeds with the genome-wide demethylating agent 5-azacytidine erased the effect of maternal but not paternal damage. The number of glandular trichomes remained elevated for three generations following damage. These results indicate that transgenerational transmission occurs through both maternal and paternal germ lines, but that they differ in the proximate mechanism of epigenetic inheritance. Our results also indicate that a wounding response can persist for multiple generations in the absence of subsequent damage.
Advisors/Committee Members: Alison G. Scoville, Jennifer Dechaine, Mary E. Poulson.
Subjects/Keywords: Evolution; Biology; Epigenetics; Evolution; Other Ecology and Evolutionary Biology
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APA (6th Edition):
Akkerman, K. (2019). Transgenerational Plasticity is Sex-dependent and Persistent in Yellow Moneyflower (Mimulus guttatus). (Masters Thesis). Central Washington University. Retrieved from https://digitalcommons.cwu.edu/etd/1268
Chicago Manual of Style (16th Edition):
Akkerman, Kayla. “Transgenerational Plasticity is Sex-dependent and Persistent in Yellow Moneyflower (Mimulus guttatus).” 2019. Masters Thesis, Central Washington University. Accessed April 18, 2021.
https://digitalcommons.cwu.edu/etd/1268.
MLA Handbook (7th Edition):
Akkerman, Kayla. “Transgenerational Plasticity is Sex-dependent and Persistent in Yellow Moneyflower (Mimulus guttatus).” 2019. Web. 18 Apr 2021.
Vancouver:
Akkerman K. Transgenerational Plasticity is Sex-dependent and Persistent in Yellow Moneyflower (Mimulus guttatus). [Internet] [Masters thesis]. Central Washington University; 2019. [cited 2021 Apr 18].
Available from: https://digitalcommons.cwu.edu/etd/1268.
Council of Science Editors:
Akkerman K. Transgenerational Plasticity is Sex-dependent and Persistent in Yellow Moneyflower (Mimulus guttatus). [Masters Thesis]. Central Washington University; 2019. Available from: https://digitalcommons.cwu.edu/etd/1268
13.
Martell, Virginia.
Improving Growth and Survival of Cultured Yellow Lampmussel (Lampsilis cariosa) for Restoring Populations.
Degree: 2020, University of Massachusetts
URL: https://scholarworks.umass.edu/masters_theses_2/883
► In North America 72% of freshwater mussel species are endangered, threatened, or of special concern due to factors such as habitat loss and degradation,…
(more)
▼ In North America 72% of freshwater mussel species are endangered, threatened, or of special concern due to factors such as habitat loss and degradation, biological invasion, and land use change. Propagation of freshwater mussels has been considered a necessary conservation strategy for population restoration where threats have been mitigated but small population sizes limit population viability. Yellow lampmussel is a species of freshwater mussel that is endangered, threatened, or imperiled throughout its range; therefore, I evaluated laboratory techniques (probiotic supplements and secondary rearing designs) to improve culture of yellow lampmussel for population restoration. Several aquaculture facilities commonly use probiotics; thus, I used commercial probiotics to determine if 1) probiotic concentration and 2) type of probiotic mixture improved growth or survival of juvenile mussels during primary culture. I further asked whether probiotics affected mussels by reducing ammonia, thereby improving water quality. Some probiotics increased survival (and, in one experiment, increased growth) of juvenile mussels, regardless of concentration, but results were variable by experiment and probiotic type. Probiotics did not significantly reduce ammonia concentrations, so this was unlikely the mechanism of benefit. I also investigated the effect of different secondary rearing systems at two culture facilities on growth and survival of juvenile mussels in two size classes (5.0 mm). I used five different secondary culture systems that were either indoors (dogpans and baskets) or outdoors (trough, airlift upweller, tank upweller, baskets), where water was either recirculating or flow-through. Survival was exceptional in all larger size class rearing systems, and the baskets in the ponds had the greatest growth rates. Smaller mussels had lower survival than the larger mussels, indicating that when deploying juvenile mussels into outdoor culture systems mussels size should be greater than 5.0 mm. Results of this project will inform future rearing yellow lampmussel in New England and more broadly add to the limited literature on probiotic use and secondary rearing designs in freshwater mussel culture.
Advisors/Committee Members: Allison H. Roy, David L. Perkins, Peter D. Hazelton.
Subjects/Keywords: Aquaculture and Fisheries; Biology; Other Ecology and Evolutionary Biology; Population Biology; Terrestrial and Aquatic Ecology
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APA (6th Edition):
Martell, V. (2020). Improving Growth and Survival of Cultured Yellow Lampmussel (Lampsilis cariosa) for Restoring Populations. (Thesis). University of Massachusetts. Retrieved from https://scholarworks.umass.edu/masters_theses_2/883
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Martell, Virginia. “Improving Growth and Survival of Cultured Yellow Lampmussel (Lampsilis cariosa) for Restoring Populations.” 2020. Thesis, University of Massachusetts. Accessed April 18, 2021.
https://scholarworks.umass.edu/masters_theses_2/883.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Martell, Virginia. “Improving Growth and Survival of Cultured Yellow Lampmussel (Lampsilis cariosa) for Restoring Populations.” 2020. Web. 18 Apr 2021.
Vancouver:
Martell V. Improving Growth and Survival of Cultured Yellow Lampmussel (Lampsilis cariosa) for Restoring Populations. [Internet] [Thesis]. University of Massachusetts; 2020. [cited 2021 Apr 18].
Available from: https://scholarworks.umass.edu/masters_theses_2/883.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Martell V. Improving Growth and Survival of Cultured Yellow Lampmussel (Lampsilis cariosa) for Restoring Populations. [Thesis]. University of Massachusetts; 2020. Available from: https://scholarworks.umass.edu/masters_theses_2/883
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
14.
Goke, Alex.
Subalpine Forest Tree Seedling Response to Drought.
Degree: M. S., Biological Sciences, 2020, U of Denver
URL: https://digitalcommons.du.edu/etd/1769
► Knowledge of tree species’ ability to tolerate drought is necessary to anticipate future forest dynamics with climate change, especially at the seedling stage given…
(more)
▼ Knowledge of tree species’ ability to tolerate drought is necessary to anticipate future forest dynamics with climate change, especially at the seedling stage given their role in shaping forest structure. We used precipitation reduction shelters to mimic drought for subalpine conifer seedlings (
A. lasiocarpa and
P. engelmannii) in the Rocky Mountains and compared survivorship and morphological and physiological responses to assess relative degrees of drought tolerance. We detected no significant investment in morphological tolerance traits (e.g. root biomass, leaf:stem area ratio) but substantial reductions in net photosynthesis. While shading partially ameliorated drought effects when precipitation reduction was moderate, complete exclusion caused declines in survivorship in both sun and shade tied to poor carbon balances. We identified a lack of stomatal control as a driver of physiological decline in seedlings suggesting a prioritization of traits that, while useful for early establishment, may portend substantial vulnerability of seedling populations to future drought.
Advisors/Committee Members: Patrick H. Martin.
Subjects/Keywords: Conifer; Subalpine; Drought; Ecology and Evolutionary Biology; Forest Biology; Life Sciences; Other Ecology and Evolutionary Biology; Plant Biology; Plant Sciences
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APA (6th Edition):
Goke, A. (2020). Subalpine Forest Tree Seedling Response to Drought. (Thesis). U of Denver. Retrieved from https://digitalcommons.du.edu/etd/1769
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Goke, Alex. “Subalpine Forest Tree Seedling Response to Drought.” 2020. Thesis, U of Denver. Accessed April 18, 2021.
https://digitalcommons.du.edu/etd/1769.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Goke, Alex. “Subalpine Forest Tree Seedling Response to Drought.” 2020. Web. 18 Apr 2021.
Vancouver:
Goke A. Subalpine Forest Tree Seedling Response to Drought. [Internet] [Thesis]. U of Denver; 2020. [cited 2021 Apr 18].
Available from: https://digitalcommons.du.edu/etd/1769.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Goke A. Subalpine Forest Tree Seedling Response to Drought. [Thesis]. U of Denver; 2020. Available from: https://digitalcommons.du.edu/etd/1769
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Southern Mississippi
15.
McBride, Kathryn Rondot.
Mycorrhizal Colonization of Native Salt Marsh Plants on Mississippi's Gulf Coast and the Effects of Commercial Mycorrhizal Inoculants on Nursery-Grown Plants.
Degree: MS, Coastal Sciences, Gulf Coast Research Laboratory, 2011, University of Southern Mississippi
URL: https://aquila.usm.edu/masters_theses/215
► Salt marshes are important economically and ecologically to the Gulf Coast and other coasts worldwide. Due to human activities, many coastal salt marshes have…
(more)
▼ Salt marshes are important economically and ecologically to the Gulf Coast and
other coasts worldwide. Due to human activities, many coastal salt marshes have been degraded or destroyed. Restoration efforts, through the replacement or addition of naturally occurring salt marsh plants, are taking place worldwide. Most restoration plants are raised in nurseries and are not ready for transfer to restoration sites for eight or nine months. Once the plants are at the restoration site many die due to transplant stress. Arbuscular Mycorrhizal Fungi (AMF) may be able to shorten the time the restoration plants need to stay in the nursery by increasing the plant’s growth rate. AMF may also increase survival by decreasing transplant stress. To determine if
S. alternifora and
J. roemerianus are naturally colonized by AMF, wild plants were collected and examined for AMF colonization. Collections took place in the fall and spring to determine if there was seasonal variation in colonization. Spore-trap trays were utilized to determine if AMF colonization could be transferred from one naturally colonized wild collected plant to an un-colonized plant. A commercial AMF inoculant was tested to determine if the inoculant was able to successfully colonize salt marsh plants and to determine an effect on growth rates or biomass. The wild plant collections showed that
S. alternifora and
J. roemerianus were naturally colonized by AMF and the colonization appeared to be seasonally influenced. The spore-trap trays did show that AMF colonization was able to transfer from one wild-collected colonized plant to an un-colonized plant. The commercial inoculant was not as successful at colonizing the salt marsh plants as the sporetrap trays were. The results suggest that naturally occurring AMF which are present in a salt marsh are more successful at colonizing plants and may be a better option for plant-based restoration projects in the future.
Advisors/Committee Members: Chester Rakocinski, Jeffrey Lotz, Patrick Biber.
Subjects/Keywords: salt marshes; coastal salt marshes; restoration; Ecology and Evolutionary Biology; Marine Biology; Other Ecology and Evolutionary Biology
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APA (6th Edition):
McBride, K. R. (2011). Mycorrhizal Colonization of Native Salt Marsh Plants on Mississippi's Gulf Coast and the Effects of Commercial Mycorrhizal Inoculants on Nursery-Grown Plants. (Masters Thesis). University of Southern Mississippi. Retrieved from https://aquila.usm.edu/masters_theses/215
Chicago Manual of Style (16th Edition):
McBride, Kathryn Rondot. “Mycorrhizal Colonization of Native Salt Marsh Plants on Mississippi's Gulf Coast and the Effects of Commercial Mycorrhizal Inoculants on Nursery-Grown Plants.” 2011. Masters Thesis, University of Southern Mississippi. Accessed April 18, 2021.
https://aquila.usm.edu/masters_theses/215.
MLA Handbook (7th Edition):
McBride, Kathryn Rondot. “Mycorrhizal Colonization of Native Salt Marsh Plants on Mississippi's Gulf Coast and the Effects of Commercial Mycorrhizal Inoculants on Nursery-Grown Plants.” 2011. Web. 18 Apr 2021.
Vancouver:
McBride KR. Mycorrhizal Colonization of Native Salt Marsh Plants on Mississippi's Gulf Coast and the Effects of Commercial Mycorrhizal Inoculants on Nursery-Grown Plants. [Internet] [Masters thesis]. University of Southern Mississippi; 2011. [cited 2021 Apr 18].
Available from: https://aquila.usm.edu/masters_theses/215.
Council of Science Editors:
McBride KR. Mycorrhizal Colonization of Native Salt Marsh Plants on Mississippi's Gulf Coast and the Effects of Commercial Mycorrhizal Inoculants on Nursery-Grown Plants. [Masters Thesis]. University of Southern Mississippi; 2011. Available from: https://aquila.usm.edu/masters_theses/215
Georgia Southern University
16.
Wilson, Lauren E.
Predator-based Selection and the Impact of Edge Sympatry on Components of Coralsnake Mimicry.
Degree: MSin Biology (M.S.), Department of Biology, 2020, Georgia Southern University
URL: https://digitalcommons.georgiasouthern.edu/etd/2139
► Studying warning coloration and mimicry is an effective way to understand predator-driven selection and phenotypic diversity. The presence (sympatry) or absence (allopatry) of a…
(more)
▼ Studying warning coloration and mimicry is an effective way to understand predator-driven selection and phenotypic diversity. The presence (sympatry) or absence (allopatry) of a toxic model plays a role in shaping mimetic phenotypes. However, the impact of edge sympatry and allopatry on predation of mimetic phenotypes is not well understood. We studied coralsnake mimicry to test how edge sympatry and allopatry affect predation on mimetic phenotypes. Specifically, we tested 1) if overall attack rates varied with edge sympatry of coralsnakes 2) which color patterns conferred a fitness advantage 3) which specific mimetic signal components are important in driving predatory attacks and 4) whether selection patterns varied temporally. We deployed clay replicas that utilized a cryptic pattern, two different signal components (red and white), and a tricolor pattern that included both signal components. We found that overall attacks did differ between edge sympatry and allopatry, with higher attack rates in allopatry. All mimetic phenotypes in 2019 had higher attack rates than cryptic phenotypes in edge sympatry, with a similar but nonspecific pattern in allopatry. Replicas with red and bands received more predatory attacks in edge sympatry than those without, once again with a similar pattern in allopatry. There was also a difference in attack rates and patterns between years, indicating temporally variable selection such as frequency-dependent selection. These results suggest that mimetic phenotypes may not have a fitness advantage in areas of edge sympatry or allopatry. This suggests the role of sympatry and allopatry may be more complex than previously thought, particularly in how sympatry may interact with extraneous factors such as behavior and frequency of phenotypes.
Advisors/Committee Members: Elizabeth Hunter, Lance McBrayer.
Subjects/Keywords: Coral snake; Batesian mimicry; Selection; Predation; Biology; Ecology and Evolutionary Biology; Evolution; Other Ecology and Evolutionary Biology
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APA (6th Edition):
Wilson, L. E. (2020). Predator-based Selection and the Impact of Edge Sympatry on Components of Coralsnake Mimicry. (Masters Thesis). Georgia Southern University. Retrieved from https://digitalcommons.georgiasouthern.edu/etd/2139
Chicago Manual of Style (16th Edition):
Wilson, Lauren E. “Predator-based Selection and the Impact of Edge Sympatry on Components of Coralsnake Mimicry.” 2020. Masters Thesis, Georgia Southern University. Accessed April 18, 2021.
https://digitalcommons.georgiasouthern.edu/etd/2139.
MLA Handbook (7th Edition):
Wilson, Lauren E. “Predator-based Selection and the Impact of Edge Sympatry on Components of Coralsnake Mimicry.” 2020. Web. 18 Apr 2021.
Vancouver:
Wilson LE. Predator-based Selection and the Impact of Edge Sympatry on Components of Coralsnake Mimicry. [Internet] [Masters thesis]. Georgia Southern University; 2020. [cited 2021 Apr 18].
Available from: https://digitalcommons.georgiasouthern.edu/etd/2139.
Council of Science Editors:
Wilson LE. Predator-based Selection and the Impact of Edge Sympatry on Components of Coralsnake Mimicry. [Masters Thesis]. Georgia Southern University; 2020. Available from: https://digitalcommons.georgiasouthern.edu/etd/2139
Cal Poly
17.
Carvalho, Paul G.
The Effectiveness of Periodically-Harvested Closures in Meeting Ecological and Socioeconomic Objectives.
Degree: MS, Biological Sciences, 2016, Cal Poly
URL: https://digitalcommons.calpoly.edu/theses/1652
;
10.15368/theses.2016.122
► Periodically-harvested fisheries closures (PHCs) are a widespread form of community-based marine spatial management used throughout the Indo-Pacific that also is currently being intensively advocated…
(more)
▼ Periodically-harvested fisheries closures (PHCs) are a widespread form of community-based marine spatial management used throughout the Indo-Pacific that also is currently being intensively advocated by conservation organizations for supporting productive fisheries and healthy marine ecosystems. However, local implementation of PHCs has historically been designed to support occasional and efficient exploitation of fish stocks, and not necessarily sustainable fisheries yields and stock conservation. The efficacy of PHCs for achieving their historical cultural objectives of periodicity and efficiency of harvest, simultaneously with achieving contemporary fisheries objectives of fisheries productivity and conservation is undetermined. As a result, the utility of PHCs for supporting contemporary ecosystem-based fisheries management is uncertain given environmental, social and climate change. We developed a biological-economic fisheries model of PHCs to test the value of this form of marine resource management for achieving cultural, fisheries and conservation objectives under sustainable and overfishing scenarios. Our results reveal PHCs to be more effective at achieving the multiple objectives than either non-spatial or fully-protected area management when fisher impact on fish behavior is considered. These results describe the performance of PHCs in general when fish behavior is considered, but does not provide detailed guidance for a particular PHC. Thus, we modified and calibrated our biological-economic fisheries model with empirical data from Nakodu Village on Koro Island in Fiji. The calibrated model allowed us to estimate the effectiveness of Nakodu Village’s current PHC management and predict consequences of future management actions. Results suggest that 5-year PHC closures are optimal for simultaneously achieving fisheries productivity and conservation goals in Nakodu Village. These findings challenge the dogma that PHCs are simply a cultural legacy and warrant further investigation of the utility of PHCs for supporting ecosystem-based management beyond the Indo-Pacific.
Advisors/Committee Members: Crow White.
Subjects/Keywords: Fisheries; Fiji; Population Modeling; Marine Ecology; Coral reefs; Other Ecology and Evolutionary Biology; Population Biology
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APA (6th Edition):
Carvalho, P. G. (2016). The Effectiveness of Periodically-Harvested Closures in Meeting Ecological and Socioeconomic Objectives. (Masters Thesis). Cal Poly. Retrieved from https://digitalcommons.calpoly.edu/theses/1652 ; 10.15368/theses.2016.122
Chicago Manual of Style (16th Edition):
Carvalho, Paul G. “The Effectiveness of Periodically-Harvested Closures in Meeting Ecological and Socioeconomic Objectives.” 2016. Masters Thesis, Cal Poly. Accessed April 18, 2021.
https://digitalcommons.calpoly.edu/theses/1652 ; 10.15368/theses.2016.122.
MLA Handbook (7th Edition):
Carvalho, Paul G. “The Effectiveness of Periodically-Harvested Closures in Meeting Ecological and Socioeconomic Objectives.” 2016. Web. 18 Apr 2021.
Vancouver:
Carvalho PG. The Effectiveness of Periodically-Harvested Closures in Meeting Ecological and Socioeconomic Objectives. [Internet] [Masters thesis]. Cal Poly; 2016. [cited 2021 Apr 18].
Available from: https://digitalcommons.calpoly.edu/theses/1652 ; 10.15368/theses.2016.122.
Council of Science Editors:
Carvalho PG. The Effectiveness of Periodically-Harvested Closures in Meeting Ecological and Socioeconomic Objectives. [Masters Thesis]. Cal Poly; 2016. Available from: https://digitalcommons.calpoly.edu/theses/1652 ; 10.15368/theses.2016.122
University of New Mexico
18.
Chung, Y. Anny, 9485698.
Plant-microbial interactions are strong determinants of plant population and community dynamics.
Degree: UNM Biology Department, 2017, University of New Mexico
URL: https://digitalrepository.unm.edu/biol_etds/219
► Plant-microbial interactions are ubiquitous and yet the consequences of these interactions on plant population and community dynamics are relatively unknown. Here, we used two…
(more)
▼ Plant-microbial interactions are ubiquitous and yet the consequences of these interactions on plant population and community dynamics are relatively unknown. Here, we used two different classes of plant-microbial interactions to examine their effects on key plant population and community characteristics such as commonness and rarity, competition and coexistence, as well as community stability.
Vertically-transmitted endophytes had stage-dependent effects on the population growth of two grass species
Poa sylvestris and
Poa alsodes, and generally increased host population growth rates. However, it was the intrinsic demographic advantage of
P. sylvestris that allowed its population to grow at a much faster rate compared to
P. alsodes rather than endophyte benefits.
In a greenhouse experiment, we showed that plant-soil microbial feedbacks were important in regulating the strength of self-limitation, or negative frequency dependence, of a strong competitor
Bouteloua gracilis. These negative feedbacks increased the potential for its coexistence with
Bouteloua eriopoda.
In a field experiment, we showed that fungal-driven plant-soil feedbacks between
B. gracilis and
B. eriopoda may help explain long term patterns of spatial variation in temporal stability between these two species. Negative plant-soil feedbacks for
B. gracilis could promote locally stable plant communities, and this effect was stronger when it was at low frequency in the community.
Finally, next-generation sequencing of root-associated fungal communities from the two preceding studies revealed strong differences in composition among different growth conditions as well as cultivation periods. In addition, experimental inoculation methods in the greenhouse and field reliably altered the root-associated fungal communities of test plants.
Advisors/Committee Members: Jennifer Rudgers, Scott Collins, Robert Sinsabaugh, Thomas Miller.
Subjects/Keywords: plant-microbial interactions; community ecology; population ecology; symbioses; semiarid grassland; Biology; Desert Ecology; Other Ecology and Evolutionary Biology; Population Biology
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APA (6th Edition):
Chung, Y. Anny, 9. (2017). Plant-microbial interactions are strong determinants of plant population and community dynamics. (Doctoral Dissertation). University of New Mexico. Retrieved from https://digitalrepository.unm.edu/biol_etds/219
Chicago Manual of Style (16th Edition):
Chung, Y. Anny, 9485698. “Plant-microbial interactions are strong determinants of plant population and community dynamics.” 2017. Doctoral Dissertation, University of New Mexico. Accessed April 18, 2021.
https://digitalrepository.unm.edu/biol_etds/219.
MLA Handbook (7th Edition):
Chung, Y. Anny, 9485698. “Plant-microbial interactions are strong determinants of plant population and community dynamics.” 2017. Web. 18 Apr 2021.
Vancouver:
Chung, Y. Anny 9. Plant-microbial interactions are strong determinants of plant population and community dynamics. [Internet] [Doctoral dissertation]. University of New Mexico; 2017. [cited 2021 Apr 18].
Available from: https://digitalrepository.unm.edu/biol_etds/219.
Council of Science Editors:
Chung, Y. Anny 9. Plant-microbial interactions are strong determinants of plant population and community dynamics. [Doctoral Dissertation]. University of New Mexico; 2017. Available from: https://digitalrepository.unm.edu/biol_etds/219
University of Louisville
19.
Kinnetz, Erin Renee.
Intraspecific differences in belowground associations and seedling root morphology for the biofuel crop, Panicum virgatum.
Degree: MS, 2017, University of Louisville
URL: 10.18297/etd/2680
;
https://ir.library.louisville.edu/etd/2680
► The perennial C4 grass Panicum virgatum (switchgrass) is a promising bioenergy feedstock. Switchgrass is symbiotic with arbuscular mycorrhizal fungi (AMF). I examined 12 varieties…
(more)
▼ The perennial C
4 grass
Panicum virgatum (switchgrass) is a promising bioenergy feedstock. Switchgrass is symbiotic with arbuscular mycorrhizal fungi (AMF). I examined 12 varieties of switchgrass grouped into 2 ecotypes (upland, lowland) to see if they differed in AMF abundance and root colonization using the GLBRC Variety Trials experiment. There was higher root colonization of lowland ecotype. A greenhouse experiment evaluated the role of live soil organisms in seedling establishment of 11 varieties. Live soil increased seedling survival, growth and influenced root morphology. Ecotypes differed in root architecture. Lowland developed a higher specific root length (SRL), a trait associated with productivity. The field experiment provided evidence that lowland ecotypes had higher root colonization, while the greenhouse study found no differences in dependence on live soil microbiota. The greenhouse study does, however support the idea that AMF could be important in the seedling establishment stage.
Advisors/Committee Members: Emery, Sarah, Carreiro, Margaret, Carreiro, Margaret, Nikolakakis, Karen.
Subjects/Keywords: switchgrass; agroecosystem; biofuel; mycorrhiza; AMF; Michigan; Other Ecology and Evolutionary Biology
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APA (6th Edition):
Kinnetz, E. R. (2017). Intraspecific differences in belowground associations and seedling root morphology for the biofuel crop, Panicum virgatum. (Masters Thesis). University of Louisville. Retrieved from 10.18297/etd/2680 ; https://ir.library.louisville.edu/etd/2680
Chicago Manual of Style (16th Edition):
Kinnetz, Erin Renee. “Intraspecific differences in belowground associations and seedling root morphology for the biofuel crop, Panicum virgatum.” 2017. Masters Thesis, University of Louisville. Accessed April 18, 2021.
10.18297/etd/2680 ; https://ir.library.louisville.edu/etd/2680.
MLA Handbook (7th Edition):
Kinnetz, Erin Renee. “Intraspecific differences in belowground associations and seedling root morphology for the biofuel crop, Panicum virgatum.” 2017. Web. 18 Apr 2021.
Vancouver:
Kinnetz ER. Intraspecific differences in belowground associations and seedling root morphology for the biofuel crop, Panicum virgatum. [Internet] [Masters thesis]. University of Louisville; 2017. [cited 2021 Apr 18].
Available from: 10.18297/etd/2680 ; https://ir.library.louisville.edu/etd/2680.
Council of Science Editors:
Kinnetz ER. Intraspecific differences in belowground associations and seedling root morphology for the biofuel crop, Panicum virgatum. [Masters Thesis]. University of Louisville; 2017. Available from: 10.18297/etd/2680 ; https://ir.library.louisville.edu/etd/2680
McMaster University
20.
Cheung, Carmen M.
Tardigrade Phylogenetic Systematics at the Family Level Using Morphological and Molecular Data.
Degree: MSc, 2012, McMaster University
URL: http://hdl.handle.net/11375/12655
► Tardigrade phylogenetic systematic analyses have been conducted using morphological and molecular data; however, incongruencies between results obtained independently with the data types have been…
(more)
▼ Tardigrade phylogenetic systematic analyses have been conducted using morphological and molecular data; however, incongruencies between results obtained independently with the data types have been found. This thesis contains new morphological and molecular phylogenetic systematic analyses of tardigrades at the family level, building on previous research. The first part involves morphological data, the second part involves molecular data, and the third part involves combined morphological and molecular data. The morphological data include 50 characters for 15 tardigrade families. The molecular data include updated 18S rRNA, 28S rRNA, and COI gene sequences, in two sets; the first set provides the most-extensive representation of tardigrade families and comprises 18S rRNA sequences; the second set provides the most-complete representation of molecular data per species, where available, and involves the concatenation of 18S rRNA, 28S rRNA, and COI gene sequences. Finally, the combined data involves a supermatrix containing morphological and molecular data. The analyses are used to test results from previous systematics research and to contribute more information to tardigrade systematics.
Master of Science (MSc)
Advisors/Committee Members: Stone, Jonathon R., Golding, Brian G., Evans, Ben, Biology.
Subjects/Keywords: Tardigrada; phylogeny; systematics; Bioinformatics; Evolution; Other Ecology and Evolutionary Biology; Bioinformatics
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APA (6th Edition):
Cheung, C. M. (2012). Tardigrade Phylogenetic Systematics at the Family Level Using Morphological and Molecular Data. (Masters Thesis). McMaster University. Retrieved from http://hdl.handle.net/11375/12655
Chicago Manual of Style (16th Edition):
Cheung, Carmen M. “Tardigrade Phylogenetic Systematics at the Family Level Using Morphological and Molecular Data.” 2012. Masters Thesis, McMaster University. Accessed April 18, 2021.
http://hdl.handle.net/11375/12655.
MLA Handbook (7th Edition):
Cheung, Carmen M. “Tardigrade Phylogenetic Systematics at the Family Level Using Morphological and Molecular Data.” 2012. Web. 18 Apr 2021.
Vancouver:
Cheung CM. Tardigrade Phylogenetic Systematics at the Family Level Using Morphological and Molecular Data. [Internet] [Masters thesis]. McMaster University; 2012. [cited 2021 Apr 18].
Available from: http://hdl.handle.net/11375/12655.
Council of Science Editors:
Cheung CM. Tardigrade Phylogenetic Systematics at the Family Level Using Morphological and Molecular Data. [Masters Thesis]. McMaster University; 2012. Available from: http://hdl.handle.net/11375/12655
21.
Gray, Charlene H.
More than Movement – Ant Seed Dispersal Inhibits Phytopathogenic Fungi.
Degree: 2015, Buffalo State College
URL: https://digitalcommons.buffalostate.edu/biology_theses/20
► Seed dispersal by ants is a cosmopolitan mutualism involving thousands of plant species. Ants gain a food reward (elaiosomes) from the plant seed, and ant-mediated…
(more)
▼ Seed dispersal by ants is a cosmopolitan mutualism involving thousands of plant species. Ants gain a food reward (elaiosomes) from the plant seed, and ant-mediated plants gain several presumed benefits, including dispersal away from parent plants and placement in 'safe site' microhabitat. Higher plant germination and survival in ant nest soils has been attributed to higher levels of nutrients, aeration, and soil moisture than surrounding soils, but evidence in support of these benefits is inconsistent. Ants secrete anti-microbial compounds that inhibit microbial pathogens. I explore the possibility that ants transfer anti-microbial properties to the soil they inhabit, and there is some evidence that the anti-microbial body chemistry may benefit plants. Hence, an additional benefit of ant-mediated seed dispersal might be that myrmecochores (ant-dispersed plants) gain pathogenic fungal protection from anti-microbial ant secretions. If so, I expect that seed-dispersing ants inhibit plant pathogenic (phytopathogenic) fungi. I first re-analyzed published data to determine whether ant-occupied soil contained fewer phytopathogenic fungi. I then conducted two experiments to test for anti-fungal effects on plant pathogen fungi. In the first, I used assays of known phytopathogenic fungi (Alternaria alternata and Fusarium oxysporum) with ant soaked hexane. I measured the zone of inhibition on agar plates and calculated area to compare the effect of the treatments. In the second experiment, I conducted a metagenomic-sequencing analysis to determine fungal diversity in ant nests as compared to control soils. The reanalysis of published data showed plant pathogenic fungal diversity decreased within ant nests but not control soil. I found no evidence of direct iii pythotopathic inhibition in the fungal assays, but I also found that the methodology did not have enough power to detect effects. The metagenomic analysis did confirm significantly less fungal diversity in ant-colonized than control soils. More importantly, the colonized soils contained significantly less diversity of plant pathogenic fungi than control soils. These results suggest ant presence in soils reduces fungal diversity and that ant-mediated seed dispersal provides a heretofore unexplored benefit to myrmecochores: fungal pathogen protection. The added benefit of fungal protection strengthens the evidence for myrmecochore dependency on their dispersal partner, and provides a more consistent explanation for why plants recruit better in ant nest soil. Pathogenic fungal protection may be a key evolutionary benefit to the worldwide phenomenon of ant-mediated seed dispersal.
Subjects/Keywords: myrmecochory; Aphaenogaster; dispersal; plants; fungi; benefits; Other Ecology and Evolutionary Biology
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APA (6th Edition):
Gray, C. H. (2015). More than Movement – Ant Seed Dispersal Inhibits Phytopathogenic Fungi. (Thesis). Buffalo State College. Retrieved from https://digitalcommons.buffalostate.edu/biology_theses/20
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Gray, Charlene H. “More than Movement – Ant Seed Dispersal Inhibits Phytopathogenic Fungi.” 2015. Thesis, Buffalo State College. Accessed April 18, 2021.
https://digitalcommons.buffalostate.edu/biology_theses/20.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Gray, Charlene H. “More than Movement – Ant Seed Dispersal Inhibits Phytopathogenic Fungi.” 2015. Web. 18 Apr 2021.
Vancouver:
Gray CH. More than Movement – Ant Seed Dispersal Inhibits Phytopathogenic Fungi. [Internet] [Thesis]. Buffalo State College; 2015. [cited 2021 Apr 18].
Available from: https://digitalcommons.buffalostate.edu/biology_theses/20.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Gray CH. More than Movement – Ant Seed Dispersal Inhibits Phytopathogenic Fungi. [Thesis]. Buffalo State College; 2015. Available from: https://digitalcommons.buffalostate.edu/biology_theses/20
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Boise State University
22.
Reynolds, Nicole K.
Resolving Relationships at the Animal-Fungal Divergence: A Molecular Phylogenetic Approach for Understanding the Ecology and Evolution of the Protist Trichomycetes.
Degree: 2015, Boise State University
URL: https://scholarworks.boisestate.edu/td/997
► The Ichthyosporea (= Mesomycetozoea) is a relatively understudied class of unicellular symbionts that molecular phylogenies have placed at the divergence of animals and fungi. Subsumed…
(more)
▼ The Ichthyosporea (= Mesomycetozoea) is a relatively understudied class of unicellular symbionts that molecular phylogenies have placed at the divergence of animals and fungi. Subsumed in this class are the cosmopolitan families Eccrinidae and Amoebidiidae (referred to as “protist trichos” or “trichos” herein), which are considered obligate commensal endobionts of various arthropods, including marine, freshwater and terrestrial hosts. Once thought to be members of the fungal class Trichomycetes due to their hyphal-like growth form and ecological similarity, molecular evidence has necessitated reclassification. However, evolutionary relationships within and between them are still unclear as the number of taxa sampled and/or the amount of gene data gathered have been factors limiting resolution. These organisms are also taxonomically challenging since informative, homologous morphological characters are difficult to discern using only a light microscope (the method by which members of Amoebidiidae and Eccrinidae have traditionally been described), and only a few have been obtained in axenic culture. Most protist trichos reported thus far lack sufficiently detailed morphological parameters to permit ease and confidence in species identification. As such, relatively little is known about the ecology and biology of most members, some of which were originally classified as fungi or algae. As new members were discovered or reclassified, two orders were established: Dermocystida and Eccrinida. Whereas members of the Dermocystida are almost entirely parasites of various metazoan hosts, only three clades within the Eccrinida contain known parasites, with the remaining members regarded as commensalistic. Interestingly, the putative closest extant relative to both groups is Ichthyophonus, an economically relevant fish parasite, which can invade vital host tissues (e.g. heart and liver) via circulating amoeba-like cells,causing disease and potentially death. The most recent molecular systematic study of the protist trichos was published about a decade ago, and there is as yet but one Paramoebidium (Amoebidiidae) sequence deposited in GenBank. Currently, based on molecular data, the Amoebidiidae are supported as monophyletic (based on one sample from each of its two genera) while the monophyly of the Eccrinidae is indicated, but not supported. Likewise, the relationship of the protist trichos to Ichthyophonus remains unresolved. As such, the first chapter of this thesis addressed the molecular phylogeny of order Eccrinida, with particular emphasis on the protist trichos by first amplifying and sequencing rDNA genes (18S and 28S) for over 100 new samples. Amplification tests were also attempted for several protein-coding genes, including heat shock protein 70. The resulting tree inferences were used in subsequent analyses of ecological and life history traits via ancestral state reconstructions and Bayesian tip-association significance testing (BaTS).
In the second chapter, samples of Paramoebidium spp. were morphologically and…
Subjects/Keywords: Ichthyosporea; trichomycetes; protist; symbiosis; phylogenetics; Arthropoda; Other Ecology and Evolutionary Biology
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APA (6th Edition):
Reynolds, N. K. (2015). Resolving Relationships at the Animal-Fungal Divergence: A Molecular Phylogenetic Approach for Understanding the Ecology and Evolution of the Protist Trichomycetes. (Thesis). Boise State University. Retrieved from https://scholarworks.boisestate.edu/td/997
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Reynolds, Nicole K. “Resolving Relationships at the Animal-Fungal Divergence: A Molecular Phylogenetic Approach for Understanding the Ecology and Evolution of the Protist Trichomycetes.” 2015. Thesis, Boise State University. Accessed April 18, 2021.
https://scholarworks.boisestate.edu/td/997.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Reynolds, Nicole K. “Resolving Relationships at the Animal-Fungal Divergence: A Molecular Phylogenetic Approach for Understanding the Ecology and Evolution of the Protist Trichomycetes.” 2015. Web. 18 Apr 2021.
Vancouver:
Reynolds NK. Resolving Relationships at the Animal-Fungal Divergence: A Molecular Phylogenetic Approach for Understanding the Ecology and Evolution of the Protist Trichomycetes. [Internet] [Thesis]. Boise State University; 2015. [cited 2021 Apr 18].
Available from: https://scholarworks.boisestate.edu/td/997.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Reynolds NK. Resolving Relationships at the Animal-Fungal Divergence: A Molecular Phylogenetic Approach for Understanding the Ecology and Evolution of the Protist Trichomycetes. [Thesis]. Boise State University; 2015. Available from: https://scholarworks.boisestate.edu/td/997
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Tennessee – Knoxville
23.
White, Adrienne Adams.
Changing Adolescents' Food-Related Behavior Via Nutrition Education.
Degree: 1988, University of Tennessee – Knoxville
URL: https://trace.tennessee.edu/utk_graddiss/3790
► A nutrition education behavior change strategy for secondary health classes was developed, implemented, and evaluated with 159 adolescents in 6 schools. The experimental design was…
(more)
▼ A nutrition education behavior change strategy for secondary health classes was developed, implemented, and evaluated with 159 adolescents in 6 schools. The experimental design was pretest/posttest, treatment/control group with two treatment groups – one receiving only the behavior change strategy (BC) and one receiving the strategy plus a traditional knowledge-oriented component (BC+). Fundamental concepts of the behavior change strategy included personalization, goal setting, self-management, self-implementation, structured feedback, and structured self-evaluation. Based on a personal nutrient analysis, each adolescent in a treatment group selected improvement of one nutrient as a goal. Effectiveness of the strategy was tested by changes made in nutrient intake related to goal set. Pre- /post-assessments included three-day food records and written questionnaires of food practices and nutrition attitudes and knowledge. A rating instrument was administered to adolescents in treatment groups to assess their perceptions of activities facilitating change.
Setting a goal for specific nutrient improvement had the strongest effect on change. No difference between treatment groups was found. Adolescents who set a goal related to calcium, vitamin A, and vitamin C increased intake and those with a sodium-related goal decreased sodium. No positive changes in nutrient intake occurred for the control group. Gender was related to positive change for calcium, vitamin A, folacin, and vitamin C, with males making significant improvements. Nutrition attitudes and knowledge generally were not related to change. Food practice scores, as assessed by the written questionnaire, increased for the BC+ group only. Knowledge scores increased in both treatment groups but not in the control group. No differences in attitudes were seen, either within or among groups.
Activities perceived as most helpful in facilitating change included keeping food records, assessing personal nutrient intake, implementing a plan for nutrient improvement, and participating in follow-up classes.
Subjects/Keywords: Other Ecology and Evolutionary Biology
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APA (6th Edition):
White, A. A. (1988). Changing Adolescents' Food-Related Behavior Via Nutrition Education. (Doctoral Dissertation). University of Tennessee – Knoxville. Retrieved from https://trace.tennessee.edu/utk_graddiss/3790
Chicago Manual of Style (16th Edition):
White, Adrienne Adams. “Changing Adolescents' Food-Related Behavior Via Nutrition Education.” 1988. Doctoral Dissertation, University of Tennessee – Knoxville. Accessed April 18, 2021.
https://trace.tennessee.edu/utk_graddiss/3790.
MLA Handbook (7th Edition):
White, Adrienne Adams. “Changing Adolescents' Food-Related Behavior Via Nutrition Education.” 1988. Web. 18 Apr 2021.
Vancouver:
White AA. Changing Adolescents' Food-Related Behavior Via Nutrition Education. [Internet] [Doctoral dissertation]. University of Tennessee – Knoxville; 1988. [cited 2021 Apr 18].
Available from: https://trace.tennessee.edu/utk_graddiss/3790.
Council of Science Editors:
White AA. Changing Adolescents' Food-Related Behavior Via Nutrition Education. [Doctoral Dissertation]. University of Tennessee – Knoxville; 1988. Available from: https://trace.tennessee.edu/utk_graddiss/3790
University of Tennessee – Knoxville
24.
Yatim, Ayub Mohd.
Mechanisms of Carnitine-Mediated Modulation of Aflatoxin B1-DNA Adduct Formation.
Degree: 1996, University of Tennessee – Knoxville
URL: https://trace.tennessee.edu/utk_graddiss/3793
► The main purpose of this study was to investigate the possible mechanism(s) of L-carnitine-mediated modulation of AFB1-DNA adducts formation. The first part of the study…
(more)
▼ The main purpose of this study was to investigate the possible mechanism(s) of L-carnitine-mediated modulation of AFB1-DNA adducts formation. The first part of the study investigated the effect of increased doses of carnitine on AFB1 binding to macromolecules, AFB1 uptake, activity of glutathione S-transferase (GST), and total glutathione concentrations in freshly isolated hepatocytes. Carnitine dose was significantly correlated with the formation of AFB1-DNA adduct ( r = -0.68;p = 0.0002 ), AFB1-protein adduct (r = 0.58;p = 0.017), but not AFB1-RNA adduct (r = 0.14;p = 0.604). There was no effect of carnitine on the uptake of AFB1 by the hepatocytes or on the activity of GST. Carnitine protected AFB1-induced reduction of total glutathione concentration in the hepatocytes, which may contribute to the overall protective effect of carnitine. The second part of the study investigated the effect of carnitine on the binding of microsomal-activated AFB1 to exogenous DNA and protein. Carnitine significantly decreased the binding of activated AFB1 to DNA. It is postulated that carnitine reduced this binding by inhibiting the AFB1-epoxide formation and/or binding of AFB1-epoxide to DNA. This effect of carnitine was not very specific because acetylcarnitine and γ-aminobutyric acid were equally effective in reducing AFB1-DNA adduct formation; however, choline and glycine had no effect. Carnitine enhanced the binding of AFB1 as well as microsomal-activated AFB1 to rat plasma proteins and bovine serum albumin. This mode of carnitine actions is proposed to be another mechanism of carnitine-mediated reduction of AFB1-DNA adduct formation.
Subjects/Keywords: Other Ecology and Evolutionary Biology
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APA (6th Edition):
Yatim, A. M. (1996). Mechanisms of Carnitine-Mediated Modulation of Aflatoxin B1-DNA Adduct Formation. (Doctoral Dissertation). University of Tennessee – Knoxville. Retrieved from https://trace.tennessee.edu/utk_graddiss/3793
Chicago Manual of Style (16th Edition):
Yatim, Ayub Mohd. “Mechanisms of Carnitine-Mediated Modulation of Aflatoxin B1-DNA Adduct Formation.” 1996. Doctoral Dissertation, University of Tennessee – Knoxville. Accessed April 18, 2021.
https://trace.tennessee.edu/utk_graddiss/3793.
MLA Handbook (7th Edition):
Yatim, Ayub Mohd. “Mechanisms of Carnitine-Mediated Modulation of Aflatoxin B1-DNA Adduct Formation.” 1996. Web. 18 Apr 2021.
Vancouver:
Yatim AM. Mechanisms of Carnitine-Mediated Modulation of Aflatoxin B1-DNA Adduct Formation. [Internet] [Doctoral dissertation]. University of Tennessee – Knoxville; 1996. [cited 2021 Apr 18].
Available from: https://trace.tennessee.edu/utk_graddiss/3793.
Council of Science Editors:
Yatim AM. Mechanisms of Carnitine-Mediated Modulation of Aflatoxin B1-DNA Adduct Formation. [Doctoral Dissertation]. University of Tennessee – Knoxville; 1996. Available from: https://trace.tennessee.edu/utk_graddiss/3793
University of Tennessee – Knoxville
25.
Mynatt, Randall L.
Carnitine Mediated Alterations of Ethanol and Fatty Acid Metabolism.
Degree: 1991, University of Tennessee – Knoxville
URL: https://trace.tennessee.edu/utk_graddiss/3784
► The purpose of this dissertation was to examine the effect of dietary carnitine supplementation on ethanol and fatty acid metabolism. Rats were fed Purina chow…
(more)
▼ The purpose of this dissertation was to examine the effect of dietary carnitine supplementation on ethanol and fatty acid metabolism. Rats were fed Purina chow as such (non-supplemented, NS) or supplemented with 0.5% L-carnitine supplemented CS). Carnitine supplementation for 7d resulted in decreased oxidation of an oral dose of [1-14C]-ethanol. Expired 14CO2 was significantly reduced at hours 4-12 in the CS group. There were no significant differences in urinary excretion of the 14C-label remaining in tissues after 12h was also not significantly affected by carnitine supplementation. Blood-ethanol concentrations (BEC) were 88.5 and 125.9 mg/dl in the NS and CS groups, respectively, 3h post-ethanol administration (PEA). Liver-ethanol concentrations (LEC) were 1.70 and 0.85 μg/mg in the NS and CS groups, respectively 3h PEA. Examination of liver concentrations of pyruvate, lactate, acetoacetate, and 3-hydroxybutyrate revealed no significant differences between the NS and CS groups. Plasma concentrations of lactate were 2-fold higher in the CS group, but pyruvate, acetoacetate and 3-hydroxybutyrate were not significantly different between the two groups. Plasma and liver non-esterified carnitine (NEC), acid soluble acylcarnitine (ASAC) and acid insoluble acylcarnitine (AIAC) concentrations were all significantly higher in the CS group 3h after ethanol administration. The effect of carnitine supplementation on the urinary excretion of ethanol, its metabolites and carnitine was determined by feeding rats the NS and CS diets for 7d. The rats were then given an oral dose of [1-14C]-ethanol and urine was collected for the next twenty-four hours. Food intake, water intake and urine volume were not significantly different between the NS & CS groups over the 24h period. Urinary excretion of ethanol and the 14C-label were not significantly affected by carnitine supplementation. Urinary excretion non-esterified carnitine (NEC), acid-soluble acyl-carnitine (ASAC) and acid-insoluble acyl-carnitine (AIAC) were significantly elevated in the CS group over the 24h period. Supplementary carnitine did not significantly affect the oxidation of [14C(U)]-palmitate. There were no significant differences between the NS and CS groups with regard to the rates of 14CO2 appearance or percent of the dose following 5, 10, 20, 30 & 40 days of feeding CS diet. Ethanol administration resulted in decreased palmitate oxidation, at hours 4-24, but dietary carnitine supplementation did not affect the decreased oxidation due to ethanol.
Subjects/Keywords: Other Ecology and Evolutionary Biology
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APA (6th Edition):
Mynatt, R. L. (1991). Carnitine Mediated Alterations of Ethanol and Fatty Acid Metabolism. (Doctoral Dissertation). University of Tennessee – Knoxville. Retrieved from https://trace.tennessee.edu/utk_graddiss/3784
Chicago Manual of Style (16th Edition):
Mynatt, Randall L. “Carnitine Mediated Alterations of Ethanol and Fatty Acid Metabolism.” 1991. Doctoral Dissertation, University of Tennessee – Knoxville. Accessed April 18, 2021.
https://trace.tennessee.edu/utk_graddiss/3784.
MLA Handbook (7th Edition):
Mynatt, Randall L. “Carnitine Mediated Alterations of Ethanol and Fatty Acid Metabolism.” 1991. Web. 18 Apr 2021.
Vancouver:
Mynatt RL. Carnitine Mediated Alterations of Ethanol and Fatty Acid Metabolism. [Internet] [Doctoral dissertation]. University of Tennessee – Knoxville; 1991. [cited 2021 Apr 18].
Available from: https://trace.tennessee.edu/utk_graddiss/3784.
Council of Science Editors:
Mynatt RL. Carnitine Mediated Alterations of Ethanol and Fatty Acid Metabolism. [Doctoral Dissertation]. University of Tennessee – Knoxville; 1991. Available from: https://trace.tennessee.edu/utk_graddiss/3784
University of Tennessee – Knoxville
26.
Gorman, Courtney E.
Plant functional traits mediate above- and belowground species interactions in ecological communities.
Degree: MS, Ecology and Evolutionary Biology, 2014, University of Tennessee – Knoxville
URL: https://trace.tennessee.edu/utk_gradthes/3150
► Functional plant traits provide a means whereby species identity can influence above- and belowground community interactions. To examine the role of plant functional traits…
(more)
▼ Functional plant traits provide a means whereby species identity can influence above- and belowground community interactions. To examine the role of plant functional traits in shaping ecological communities, Chapter 1 examines how the evolution of functional differences between closely related groups of endemic and non-endemic species influence associated species interactions, and Chapter 2 examines how plant functional traits can influence associated community composition.
Advisors/Committee Members: Joseph K. Bailey, Daniel Simberloff, Charlie Kwit.
Subjects/Keywords: Functional traits; endemism; diversity; Other Ecology and Evolutionary Biology
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APA (6th Edition):
Gorman, C. E. (2014). Plant functional traits mediate above- and belowground species interactions in ecological communities. (Thesis). University of Tennessee – Knoxville. Retrieved from https://trace.tennessee.edu/utk_gradthes/3150
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Gorman, Courtney E. “Plant functional traits mediate above- and belowground species interactions in ecological communities.” 2014. Thesis, University of Tennessee – Knoxville. Accessed April 18, 2021.
https://trace.tennessee.edu/utk_gradthes/3150.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Gorman, Courtney E. “Plant functional traits mediate above- and belowground species interactions in ecological communities.” 2014. Web. 18 Apr 2021.
Vancouver:
Gorman CE. Plant functional traits mediate above- and belowground species interactions in ecological communities. [Internet] [Thesis]. University of Tennessee – Knoxville; 2014. [cited 2021 Apr 18].
Available from: https://trace.tennessee.edu/utk_gradthes/3150.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Gorman CE. Plant functional traits mediate above- and belowground species interactions in ecological communities. [Thesis]. University of Tennessee – Knoxville; 2014. Available from: https://trace.tennessee.edu/utk_gradthes/3150
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Tennessee – Knoxville
27.
Donan, Robert Malcolm.
The Development and Utilization of a Survey Instrument to Determine the Acceptance of National Standards for Technological Literacy.
Degree: 2003, University of Tennessee – Knoxville
URL: https://trace.tennessee.edu/utk_graddiss/2003
► Over the past six years, practitioners in the field of technology education within the State of Tennessee have been mandated with nearly constant curricular change…
(more)
▼ Over the past six years, practitioners in the field of technology education within the State of Tennessee have been mandated with nearly constant curricular change with the latest being the implementation of a revised set of content standards for technology education, a major change in programs within the curriculum framework, and most recently a new name for the state-wide program. These programmatic changes, other than the name change, although they addressed the majority of the national content standards for technological literacy, were not correlated with either the programs or grade level content explicit in the national standards developed and published by the International Technology Education Association (the international governing board of technology education teachers). At the time of this study, no studies had been conducted in the field of technology education to analyze the perceptions of technology education practitioners in regards to their willingness to endorse a set of national standards for technological literacy. Nor had there be any studies conducted to determine if technology education teachers perceived: (a) the published national standards to be representative of their programs; (b) a need or desire for content specific training in order to implement any of the national standards; or (c) their students as possessing the ability to acquire the content explicit in the national standards. The primary purpose of the study was to determine the level of endorsement of national content standards by technology education teachers in Tennessee. Secondarily it was to determine the level of perceived need for in-service training to facilitate adoption of the standards and integrating them into the existing curriculum. vi This study used a descriptive design in which self-reported perceptional and demographic data were obtained from technology education teachers in Tennessee. Due to relatively small size of the population and historically low response rate from practitioners in the field, a census study was conducted. A mailed questionnaire was used for expediency and reduced cost in conducting the census survey. The questionnaire used in this research was an original survey instrument developed by the researcher after a review of the literature failed to reveal any instrument that could be used to collect the requisite perceptional data. In addition to investigating the level of acceptance of national standards and perceived need for training, the study also investigated the perceptions of technology teachers as to (a) the fit of the content standards for technology education contained in Standards for Technological Literacy: Content for the Study of Technology (International Technology Education Association, 2000) within the existing curriculum, and (b) student ability to acquire the content explicit in the standards. Frequencies, percentages, crosstabulations and correlational analyses were performed on the data. Results of the study showed that in contrast to the historic lack of general acceptance of…
Subjects/Keywords: Other Ecology and Evolutionary Biology
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APA ·
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MLA ·
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CSE |
Export
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APA (6th Edition):
Donan, R. M. (2003). The Development and Utilization of a Survey Instrument to Determine the Acceptance of National Standards for Technological Literacy. (Doctoral Dissertation). University of Tennessee – Knoxville. Retrieved from https://trace.tennessee.edu/utk_graddiss/2003
Chicago Manual of Style (16th Edition):
Donan, Robert Malcolm. “The Development and Utilization of a Survey Instrument to Determine the Acceptance of National Standards for Technological Literacy.” 2003. Doctoral Dissertation, University of Tennessee – Knoxville. Accessed April 18, 2021.
https://trace.tennessee.edu/utk_graddiss/2003.
MLA Handbook (7th Edition):
Donan, Robert Malcolm. “The Development and Utilization of a Survey Instrument to Determine the Acceptance of National Standards for Technological Literacy.” 2003. Web. 18 Apr 2021.
Vancouver:
Donan RM. The Development and Utilization of a Survey Instrument to Determine the Acceptance of National Standards for Technological Literacy. [Internet] [Doctoral dissertation]. University of Tennessee – Knoxville; 2003. [cited 2021 Apr 18].
Available from: https://trace.tennessee.edu/utk_graddiss/2003.
Council of Science Editors:
Donan RM. The Development and Utilization of a Survey Instrument to Determine the Acceptance of National Standards for Technological Literacy. [Doctoral Dissertation]. University of Tennessee – Knoxville; 2003. Available from: https://trace.tennessee.edu/utk_graddiss/2003
University of Tennessee – Knoxville
28.
Silcox, Pamela Driggers.
Differences in Quality of Care by Insurance Plan: A Fee-For-Service vs. Health Maintenance Organization Comparison.
Degree: 2002, University of Tennessee – Knoxville
URL: https://trace.tennessee.edu/utk_graddiss/2205
► The history of health insurance in the United States has perpetuated and enabled a health care industry that has been rewarded for increased spending rather…
(more)
▼ The history of health insurance in the United States has perpetuated and enabled a health care industry that has been rewarded for increased spending rather than cost control. With the original plan setting no spending limit on health care providers, fee-for service reimbursement provided greater incentive to spend than to contain costs. Attempts to control the soaring costs of health care services have given rise to managed care insurance plans that base reimbursement on health outcome data. Given that the birth of managed care includes stringent reimbursement guidelines and ensuing controversy over services provided or not provided, this study sought to determine if differences in quality of care existed between two common types of health insurance, fee for-service (FFS) and health maintenance organization (HMO) insurance plans for the most costly chronic illness, congestive heart failure (CHF). Utilizing primary and secondary data obtained from an ongoing CHF study at the University of Tennessee Medical Center in Knoxville, Tennessee, this study compared CHF health outcomes between FFS and HMO insurance plans.
With an N of 154 cases, results revealed 0.37 of a day shorter length of stay in HMO members with an average of 4.95 and 5.32 days for HMO & FFS members respectively. In addition, HMO members displayed higher readmission rates with 25.6% of HMO members and 22.6% of FFS members readmitted to the hospital within 30 days of discharge with a related diagnosis. For the previously stated outcomes, no statistically significant difference was found between the insurance plans. Other findings included all six cases of mortality found in FFS insurance plans, however an exposed odds ratio test did not indicate a statistically significant difference in mortality rates due to sample size and distribution. All six cases of mortality were found in patients ages 67 and up with an association between being age 67+ and enrolled in a FFS insurance plan.
Recommendations for future research include further study into length of stay and the possible effect on readmission rates for members of HMO insurance plans. Investigation into documentation of teaching, follow-up scheduled at discharge, and the effect on readmission rates could provide data supporting the need for adequate teaching and follow up to decrease exacerbations and subsequent higher readmission rates.
Subjects/Keywords: Other Ecology and Evolutionary Biology
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APA ·
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MLA ·
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CSE |
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APA (6th Edition):
Silcox, P. D. (2002). Differences in Quality of Care by Insurance Plan: A Fee-For-Service vs. Health Maintenance Organization Comparison. (Doctoral Dissertation). University of Tennessee – Knoxville. Retrieved from https://trace.tennessee.edu/utk_graddiss/2205
Chicago Manual of Style (16th Edition):
Silcox, Pamela Driggers. “Differences in Quality of Care by Insurance Plan: A Fee-For-Service vs. Health Maintenance Organization Comparison.” 2002. Doctoral Dissertation, University of Tennessee – Knoxville. Accessed April 18, 2021.
https://trace.tennessee.edu/utk_graddiss/2205.
MLA Handbook (7th Edition):
Silcox, Pamela Driggers. “Differences in Quality of Care by Insurance Plan: A Fee-For-Service vs. Health Maintenance Organization Comparison.” 2002. Web. 18 Apr 2021.
Vancouver:
Silcox PD. Differences in Quality of Care by Insurance Plan: A Fee-For-Service vs. Health Maintenance Organization Comparison. [Internet] [Doctoral dissertation]. University of Tennessee – Knoxville; 2002. [cited 2021 Apr 18].
Available from: https://trace.tennessee.edu/utk_graddiss/2205.
Council of Science Editors:
Silcox PD. Differences in Quality of Care by Insurance Plan: A Fee-For-Service vs. Health Maintenance Organization Comparison. [Doctoral Dissertation]. University of Tennessee – Knoxville; 2002. Available from: https://trace.tennessee.edu/utk_graddiss/2205
University of Tennessee – Knoxville
29.
Seo, Heesun.
A Qualitative Investigation of Polish Consumers’ Retail Experiences during the Transitional Period: 1989-2001.
Degree: 2002, University of Tennessee – Knoxville
URL: https://trace.tennessee.edu/utk_graddiss/2208
► The general objective of this dissertation is to investigate the most current phenomenon in the Polish retail environment and the recent Polish consumers’ retail experience.…
(more)
▼ The general objective of this dissertation is to investigate the most current phenomenon in the Polish retail environment and the recent Polish consumers’ retail experience. Specifically, by examining information search behavior, shopping behavior, and post-purchase behavior, themes emerged in terms of how the changes in the retail environment influenced the patronage and consumption behavior of Polish consumers. An exploratory research approach is used to conduct this research due to the lack of existing knowledge on Polish consumers and the ever-changing nature of the market environment in Poland. Moreover, qualitative research method with naturalistic inquiry was used to present the Polish consumers’ point of view on their retail experiences.
The data are analyzed in two simultaneous stages: 1) an open coding analysis, and 2) a thematic analysis. The findings indicate that Polish consumers shopping behavior as well as consumption behavior have been influenced by the dramatic changes in the retail environment, retail experiences in the past, and the time perception. The data appear to provide empirical evidence that the changes in time perception appear to have an impact on Polish consumers’ consumption behavior. The findings also present that Polish consumers may have adapted the retail environment under free market economy but their attitudes and behaviors remain to be heavily influenced by their retail experiences under the planned economy.
This research presents a contribution to the body of knowledge by taking a significant step and addressing several untapped issues. This research provides a theoretical foundation for better understanding of Polish consumers’ attitudes and behaviors, which is beyond the descriptive information presented by the previous studies. For practitioners, this research highlights the need for better understanding of consumers in countries undergoing political and economic transition in order to achieve the promising performance by formulating and implementing the sufficient retail strategies. Replication of the study on consumers in the other parts of Poland would further strengthen the conclusions. Future research should also explore the alternative research methods due to the nature of the unknown group of consumers. Following research topics are also suggested for the further investigation: 1) effectiveness of retailer’s advertising/promotion campaigns in Polish market; 2) Polish consumer’s in-store shopping behavior; 3) search behavior; 4) influence of time perception on purchase behavior; and 5) conceptualization of Polish consumer satisfaction response to retail experience.
Subjects/Keywords: Other Ecology and Evolutionary Biology
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
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APA (6th Edition):
Seo, H. (2002). A Qualitative Investigation of Polish Consumers’ Retail Experiences during the Transitional Period: 1989-2001. (Doctoral Dissertation). University of Tennessee – Knoxville. Retrieved from https://trace.tennessee.edu/utk_graddiss/2208
Chicago Manual of Style (16th Edition):
Seo, Heesun. “A Qualitative Investigation of Polish Consumers’ Retail Experiences during the Transitional Period: 1989-2001.” 2002. Doctoral Dissertation, University of Tennessee – Knoxville. Accessed April 18, 2021.
https://trace.tennessee.edu/utk_graddiss/2208.
MLA Handbook (7th Edition):
Seo, Heesun. “A Qualitative Investigation of Polish Consumers’ Retail Experiences during the Transitional Period: 1989-2001.” 2002. Web. 18 Apr 2021.
Vancouver:
Seo H. A Qualitative Investigation of Polish Consumers’ Retail Experiences during the Transitional Period: 1989-2001. [Internet] [Doctoral dissertation]. University of Tennessee – Knoxville; 2002. [cited 2021 Apr 18].
Available from: https://trace.tennessee.edu/utk_graddiss/2208.
Council of Science Editors:
Seo H. A Qualitative Investigation of Polish Consumers’ Retail Experiences during the Transitional Period: 1989-2001. [Doctoral Dissertation]. University of Tennessee – Knoxville; 2002. Available from: https://trace.tennessee.edu/utk_graddiss/2208
30.
Edgar, Barry E.
The effect of controlled burns on abundance of woody species at Buck Mountain, West Virginia.
Degree: 2015, James Madison University
URL: https://commons.lib.jmu.edu/master201019/62
► Each year, the U.S. Forest Service prescribes burns within the George Washington and Jefferson National Forest (GWJNF). Burns are prescribed in the growing (late April-October)…
(more)
▼ Each year, the U.S. Forest Service prescribes burns within the George Washington and Jefferson National Forest (GWJNF). Burns are prescribed in the growing (late April-October) and dormant season (November- mid-April). The goal of the burns is to reinstate the natural fire regime, returning forests to their original species composition. Currently in GWJNF, Appalachian pine-oak forests are experiencing an increase in fire-intolerant species, while Quercus species and Gaylussacia brachycera, an endangered shrub species, are declining. In the summer of 2014, a vegetation survey was conducted on Buck Mountain, West Virginia to determine if there was a significant difference between dormant and growing season burns compared to a no-burn control. A total of 60 plots (15 per treatment) was established within a site burned once (in the dormant season), a site burned twice (dormant burn followed by a growing season burn), a site burned twice (both dormant), and a site protected from fire (control). We hypothesized that burns would have differing effects on woody vegetation, depending on fire treatment and shade tolerance. We predicted that Quercus species and G. brachycera would increase after a growing season burn. We found that Quercus ilicifolia regeneration, as well as G. brachycera were more abundant at burn sites, regardless of season. Our results suggest that seasonality of burns did not affect oak and G. brachycera regeneration at Buck Mountain. Future vegetation monitoring is needed to determine if time intervals between burns affects regeneration of desired species rather than the season of burn.
Advisors/Committee Members: Heather Griscom.
Subjects/Keywords: oak; regeneration; box huckleberry; prescribed burns; Other Ecology and Evolutionary Biology
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APA (6th Edition):
Edgar, B. E. (2015). The effect of controlled burns on abundance of woody species at Buck Mountain, West Virginia. (Masters Thesis). James Madison University. Retrieved from https://commons.lib.jmu.edu/master201019/62
Chicago Manual of Style (16th Edition):
Edgar, Barry E. “The effect of controlled burns on abundance of woody species at Buck Mountain, West Virginia.” 2015. Masters Thesis, James Madison University. Accessed April 18, 2021.
https://commons.lib.jmu.edu/master201019/62.
MLA Handbook (7th Edition):
Edgar, Barry E. “The effect of controlled burns on abundance of woody species at Buck Mountain, West Virginia.” 2015. Web. 18 Apr 2021.
Vancouver:
Edgar BE. The effect of controlled burns on abundance of woody species at Buck Mountain, West Virginia. [Internet] [Masters thesis]. James Madison University; 2015. [cited 2021 Apr 18].
Available from: https://commons.lib.jmu.edu/master201019/62.
Council of Science Editors:
Edgar BE. The effect of controlled burns on abundance of woody species at Buck Mountain, West Virginia. [Masters Thesis]. James Madison University; 2015. Available from: https://commons.lib.jmu.edu/master201019/62
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Open Access Theses and Dissertations