subject:(food web)

Texas A&M University

1. Zeug, Steven Christopher. Demographic and trophic dynamics of fishes in relation to hydrologic variation in channel and floodplain habitats of the Brazos River, Texas.

Degree: 2009, Texas A&M University

URL: http://hdl.handle.net/1969.1/ETD-TAMU-1971

► Large rivers in North America have been subjected to a variety of hydrologic alterations that have negatively impacted aquatic fauna. These impacts have triggered restoration… (more)

▼ Large rivers in North America have been subjected to a variety of hydrologic alterations that have negatively impacted aquatic fauna. These impacts have triggered restoration efforts, including management of flows, to restore or maintain ecological integrity. Ecological data relevant to flow management and habitat restoration is scarce, and conceptual models of ecosystem function have been widely applied to large rivers despite a lack of quantitative evaluation of these models. Here, I examine demographic and trophic dynamics of fishes with divergent life histories and trophic guilds in relation to habitat heterogeneity and flow variability in a relatively unaltered floodplain system: the Brazos River, Texas. Reproductive activity of fishes with three divergent life history strategies was positively associated with long-term river hydrology, although species with alternate strategies exploited different portions of the hydrograph (peak flow versus increasing flow). Despite the positive association with hydrology, low-flow periods were favorable for recruitment, and food resources for larvae and juveniles were denser during these periods. Some species used both oxbow and channel habitats during some point in their life cycle, whereas other species appeared to be almost entirely restricted to one habitat type. Terrestrial C3 macrophytes accounted for a significant fraction of the biomass of most consumer species examined. Small-bodied species in oxbow lakes assimilated large fractions of biomass from benthic algae, whereas this pattern was not observed in the river channel. Frequent flow variations in the river channel may reduce algal standing stocks, and significant contributions from autochthonous algal sources may only occur during low-flow periods. Trophic positions of detritivores indicated that terrestrial carbon sources were assimilated, for the most part, via invertebrates rather than by direct consumption. My results indicate that current conceptual models are too vague to provide accurate predictions for restoration strategies in rivers with variable flow regimes. Flow and habitat management strategies that focus on reproducing key features of historical fluvial dynamics are likely to be more successful than strategies that focus on single indicator species or flow dynamics that differ from the historical hydrograph. Advisors/Committee Members: Winemiller, Kirk (advisor), Briske, David (committee member), Davis, Stephen (committee member), Fitzgerald, Lee (committee member).

Subjects/Keywords: reproduction; recruitment; isotopes; food web

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Zeug, S. C. (2009). Demographic and trophic dynamics of fishes in relation to hydrologic variation in channel and floodplain habitats of the Brazos River, Texas. (Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/ETD-TAMU-1971

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Zeug, Steven Christopher. “Demographic and trophic dynamics of fishes in relation to hydrologic variation in channel and floodplain habitats of the Brazos River, Texas.” 2009. Thesis, Texas A&M University. Accessed July 23, 2019. http://hdl.handle.net/1969.1/ETD-TAMU-1971.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Zeug, Steven Christopher. “Demographic and trophic dynamics of fishes in relation to hydrologic variation in channel and floodplain habitats of the Brazos River, Texas.” 2009. Web. 23 Jul 2019.

Vancouver:

Zeug SC. Demographic and trophic dynamics of fishes in relation to hydrologic variation in channel and floodplain habitats of the Brazos River, Texas. [Internet] [Thesis]. Texas A&M University; 2009. [cited 2019 Jul 23]. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1971.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Zeug SC. Demographic and trophic dynamics of fishes in relation to hydrologic variation in channel and floodplain habitats of the Brazos River, Texas. [Thesis]. Texas A&M University; 2009. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1971

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Canterbury

2. Graham, Sharon Elizabeth. Mechanisms and mitigation of food web change in stream ecosystems.

Degree: Biological Sciences, 2013, University of Canterbury

URL: http://hdl.handle.net/10092/8924

► Freshwater ecosystems reflect the condition of their surrounding landscape, and thus are particularly vulnerable to anthropogenic stressors associated with human land-use. One of the most… (more)

▼ Freshwater ecosystems reflect the condition of their surrounding landscape, and thus are particularly vulnerable to anthropogenic stressors associated with human land-use. One of the most prevalent stressors on stream ecosystems in agricultural regions, such as the Canterbury Plains of New Zealand, is eutrophication, or increased primary productivity. The aim of this thesis was to investigate effects of eutrophication on stream communities, specifically food web structure and ecosystem function. From a food web perspective, eutrophication is a shift in the form and amount of available energy from externally-produced (allochthonous) to internal (autochthonous) basal resources. Such shifts are frequently associated with land-use intensification, due to riparian vegetation removal and increased nutrient inputs, both of which enhance autochthonous production. A field survey across a gradient of eutrophication showed that eutrophic stream food webs are largely autochthonously-based and often contain large numbers of defended primary consumers, which form trophic bottlenecks and prevent energy from reaching higher trophic levels. Consequently, while there is more total energy available, less of that energy is in a usable form for stream food webs. Moreover, I found that eutrophic streams are largely composed of generalist consumers, which shift their diets to refocus on autochthonous resources with increasing productivity. Given that eutrophication causes food web resources to become more homogenous and was a primary driver of food web change, I tested whether reintroducing allochthonous subsidies would alter or reverse the negative effects of eutrophication. To do this I conducted a short-term community assembly experiment and a year-long population biomass accrual study. I found that the simplified, generalist-dominated communities in eutrophic streams did not respond to changes in resource diversity as predicted by food web theories, which are based on more diverse food webs. After restoration of allochthonous subsidies, defended generalist taxa continued to dominate the invertebrate communities. However, while restoring allochthonous subsidies did not mitigate the numerical dominance of defended consumers, the biomass accrual of other, previously excluded desirable taxa, such as mayflies and predatory invertebrates, increased following resource additions. This indicates that more energy reached the top of the food web, suggesting that resource additions alleviated trophic bottlenecks. Overall, my findings have advanced current knowledge about key mechanisms driving food web responses to both anthropogenic stress and to restoration efforts, which can be applied to improve management and restoration of stream ecosystems.

Subjects/Keywords: stream; ecology; food web; eutrophication

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Graham, S. E. (2013). Mechanisms and mitigation of food web change in stream ecosystems. (Thesis). University of Canterbury. Retrieved from http://hdl.handle.net/10092/8924

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Graham, Sharon Elizabeth. “Mechanisms and mitigation of food web change in stream ecosystems.” 2013. Thesis, University of Canterbury. Accessed July 23, 2019. http://hdl.handle.net/10092/8924.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Graham, Sharon Elizabeth. “Mechanisms and mitigation of food web change in stream ecosystems.” 2013. Web. 23 Jul 2019.

Vancouver:

Graham SE. Mechanisms and mitigation of food web change in stream ecosystems. [Internet] [Thesis]. University of Canterbury; 2013. [cited 2019 Jul 23]. Available from: http://hdl.handle.net/10092/8924.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Graham SE. Mechanisms and mitigation of food web change in stream ecosystems. [Thesis]. University of Canterbury; 2013. Available from: http://hdl.handle.net/10092/8924

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Alberta

3. Fortin, Barbra Linda. Selenium dynamics in Canadian Rocky Mountain lakes.

Degree: MS, Department of Biological Sciences, 2010, University of Alberta

URL: https://era.library.ualberta.ca/files/ng451j405

► I investigated, water, invertebrates and fishes from lakes in Banff National Park and Kananaskis Country, Alberta for selenium (Se), an element known to be toxic… (more)

Subjects/Keywords: fishes; selenium; mountain; food web

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Fortin, B. L. (2010). Selenium dynamics in Canadian Rocky Mountain lakes. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/ng451j405

Chicago Manual of Style (16^th Edition):

Fortin, Barbra Linda. “Selenium dynamics in Canadian Rocky Mountain lakes.” 2010. Masters Thesis, University of Alberta. Accessed July 23, 2019. https://era.library.ualberta.ca/files/ng451j405.

MLA Handbook (7^th Edition):

Fortin, Barbra Linda. “Selenium dynamics in Canadian Rocky Mountain lakes.” 2010. Web. 23 Jul 2019.

Vancouver:

Fortin BL. Selenium dynamics in Canadian Rocky Mountain lakes. [Internet] [Masters thesis]. University of Alberta; 2010. [cited 2019 Jul 23]. Available from: https://era.library.ualberta.ca/files/ng451j405.

Council of Science Editors:

Fortin BL. Selenium dynamics in Canadian Rocky Mountain lakes. [Masters Thesis]. University of Alberta; 2010. Available from: https://era.library.ualberta.ca/files/ng451j405

University of New Mexico

4. Baumann, Matthew. Tracing Deuterium through the food web and into Birds and Mammals along an elevational gradient in the Southern Rocky Mountains.

Degree: UNM Biology Department, 2010, University of New Mexico

URL: https://digitalrepository.unm.edu/biol_etds/5

► Animals incorporate local δ2H values from available water and dietary sources during tissue synthesis, which can provide evidence of elevational movements if multiple tissues with… (more)

Subjects/Keywords: Deuterium; Food Web; Migration; Elevation

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Baumann, M. (2010). Tracing Deuterium through the food web and into Birds and Mammals along an elevational gradient in the Southern Rocky Mountains. (Masters Thesis). University of New Mexico. Retrieved from https://digitalrepository.unm.edu/biol_etds/5

Chicago Manual of Style (16^th Edition):

Baumann, Matthew. “Tracing Deuterium through the food web and into Birds and Mammals along an elevational gradient in the Southern Rocky Mountains.” 2010. Masters Thesis, University of New Mexico. Accessed July 23, 2019. https://digitalrepository.unm.edu/biol_etds/5.

MLA Handbook (7^th Edition):

Baumann, Matthew. “Tracing Deuterium through the food web and into Birds and Mammals along an elevational gradient in the Southern Rocky Mountains.” 2010. Web. 23 Jul 2019.

Vancouver:

Baumann M. Tracing Deuterium through the food web and into Birds and Mammals along an elevational gradient in the Southern Rocky Mountains. [Internet] [Masters thesis]. University of New Mexico; 2010. [cited 2019 Jul 23]. Available from: https://digitalrepository.unm.edu/biol_etds/5.

Council of Science Editors:

Baumann M. Tracing Deuterium through the food web and into Birds and Mammals along an elevational gradient in the Southern Rocky Mountains. [Masters Thesis]. University of New Mexico; 2010. Available from: https://digitalrepository.unm.edu/biol_etds/5

University of Canterbury

5. Wootton, Katherine Lindsay. Fitting species into the complexity-stability debate.

Degree: School of Biological Sciences, 2015, University of Canterbury

URL: http://hdl.handle.net/10092/10912

► Ecological communities – groups of interacting species – are subject to a variety of disturbances. Understanding responses to these disturbances is a primary goal of… (more)

▼ Ecological communities – groups of interacting species – are subject to a variety of disturbances. Understanding responses to these disturbances is a primary goal of community ecology. The structural complexity of the community and the traits of the community’s constituent species are both known to have a significant impact on a community’s response to a disturbance. In this thesis, we investigated how these two scales – the community level and the species level – interactively affected community responses to both short and long term disturbances. Our first hypothesis was that interaction strength would be weaker in species with many interactions when compared to species with fewer interactions. To test this hypothesis, we used simulated food webs and found that, in locally stable food webs, species with many interactions tended predominantly to have interactions with predators or with prey. While these many predator or prey interactions were weak, they tended to be balanced by a few interactions of the opposite type (with prey or predators) which were stronger than average. The structure of the network, where species had predominantly one type of interaction, was essential for this relationship between the number and strength of interactions to arise. Our second study investigated how food webs of varying size and connectance respond to press and pulse disturbances. Many studies of food web stability only focus on the response to short term or “pulse” disturbances, however, as anthropogenic impacts on food webs increase, it is important to increase our understanding of food web responses to long term or “press” disturbances and determine whether they follow the same pattern as pulse disturbances. We found that more species rich and connected food webs were less stable to both types of disturbance and the more stable a food web was to a pulse disturbance, the more stable it was to a press disturbance as well. We also found that the traits – trophic level and number of interactions – of the disturbed species impacted a food web’s resistance to a press disturbance. Food webs were less resistant to the disturbance of species with many interactions or low trophic level than species with few interactions or high trophic level. The strength of species’ effects on stability was also moderated by the structural complexity of the food web. Together the work that makes up this thesis suggests that, to understand the stability of food webs to any kind of disturbance, we should consider both the structure of the network and the traits of the species embedded within it. While we found that networks were more vulnerable to disturbance of certain species than others, this observation also depended on the structure and complexity of the community they existed in. This has important implications for communities subject to disturbances, especially those disturbances which alter the way in which communities are structured and species interact.

Subjects/Keywords: species interactions; food web; stability; complexity; disturbance

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Wootton, K. L. (2015). Fitting species into the complexity-stability debate. (Thesis). University of Canterbury. Retrieved from http://hdl.handle.net/10092/10912

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Wootton, Katherine Lindsay. “Fitting species into the complexity-stability debate.” 2015. Thesis, University of Canterbury. Accessed July 23, 2019. http://hdl.handle.net/10092/10912.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Wootton, Katherine Lindsay. “Fitting species into the complexity-stability debate.” 2015. Web. 23 Jul 2019.

Vancouver:

Wootton KL. Fitting species into the complexity-stability debate. [Internet] [Thesis]. University of Canterbury; 2015. [cited 2019 Jul 23]. Available from: http://hdl.handle.net/10092/10912.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Wootton KL. Fitting species into the complexity-stability debate. [Thesis]. University of Canterbury; 2015. Available from: http://hdl.handle.net/10092/10912

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Queens University

6. Poulopoulos, John. Long-term changes to food web structures and mercury biomagnification in three large, inland North American lakes .

Degree: Biology, 2013, Queens University

URL: http://hdl.handle.net/1974/7782

► Numerous anthropogenic disturbances have occurred in large lakes over recent decades. These may alter concentrations of the biomagnifying contaminant mercury (Hg) in fish, but long-term… (more)

▼ Numerous anthropogenic disturbances have occurred in large lakes over recent decades. These may alter concentrations of the biomagnifying contaminant mercury (Hg) in fish, but long-term impacts of disturbances on Hg trophodynamics are poorly understood. Elemental analyses of archived museum ichthyology specimens could be used to study historical, pre-disturbance fish food webs, but there is uncertainty about effects of chemical preservatives on the results of such analyses. In this thesis, long-term preservation effects were studied, and archived fish were used to reconstruct historical food webs and Hg trophodynamic patterns in three large North American lakes, Nipigon, Simcoe and Champlain. After 24 months of formalin/ethanol preservation, fish muscle delta-15N and delta-13C had average changes of +0.4 ‰ and -0.9 ‰, respectively. Shifts in mean Hg concentration was +5 % after 12 months. A suite of 26 other elements analyzed over 24 months showed consistent responses to preservation, usually involving an increase in concentration immediately following preservation. In the second phase of the thesis, stable isotope and Hg analyses were performed on archived and modern fish from the study lakes, dating to the 1920s-60s and 2006-7, respectively. Trophic relationships were often relatively stable over time, but stable isotope metrics revealed a decrease in Lake Nipigon delta-15N range and less pelagic feeding among Lake Simcoe pumpkinseed and yellow perch. In Lake Champlain, the re-introduction of lake trout in recent decades did not have a major effect on overall food web dimensions. Significant Hg biomagnification factors were found in 1920s and 2006-7 Lake Nipigon (which were not statistically distinguishable from each other) and 2006 Lake Champlain. These biomagnification factors ranged from 0.09 to 0.17, which is within the range found in other studies globally. Archived fish and government monitoring records indicated that fish Hg concentrations decreased in Lakes Simcoe and Champlain since historical periods, but remained similar or increased in Lake Nipigon. This thesis confirms the utility of archived fish for elemental analyses. It highlights the risks of Hg contamination and food web change that may be faced by remote lakes, and it provides evidence for relatively stable Hg biomagnification rates in large lakes.

Subjects/Keywords: food web; museum; stable isotopes; preservation; mercury

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Poulopoulos, J. (2013). Long-term changes to food web structures and mercury biomagnification in three large, inland North American lakes . (Thesis). Queens University. Retrieved from http://hdl.handle.net/1974/7782

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Poulopoulos, John. “Long-term changes to food web structures and mercury biomagnification in three large, inland North American lakes .” 2013. Thesis, Queens University. Accessed July 23, 2019. http://hdl.handle.net/1974/7782.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Poulopoulos, John. “Long-term changes to food web structures and mercury biomagnification in three large, inland North American lakes .” 2013. Web. 23 Jul 2019.

Vancouver:

Poulopoulos J. Long-term changes to food web structures and mercury biomagnification in three large, inland North American lakes . [Internet] [Thesis]. Queens University; 2013. [cited 2019 Jul 23]. Available from: http://hdl.handle.net/1974/7782.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Poulopoulos J. Long-term changes to food web structures and mercury biomagnification in three large, inland North American lakes . [Thesis]. Queens University; 2013. Available from: http://hdl.handle.net/1974/7782

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Oklahoma

7. Lucas, Jane. FROM COOPERATION TO COMPETITION: HOW MICROBES AND INVERTEBRATES INTERACT IN A TROPICAL FOREST.

Degree: PhD, 2018, University of Oklahoma

URL: http://hdl.handle.net/11244/299325

► Microbes and invertebrates are “the little things that run the world” (Wilson 1987, Moreau 2017), but the intricacies of how these organisms impact our environment… (more)

Subjects/Keywords: Ecology; Microbial Ecology; Invertebrate; Brown Food Web

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Lucas, J. (2018). FROM COOPERATION TO COMPETITION: HOW MICROBES AND INVERTEBRATES INTERACT IN A TROPICAL FOREST. (Doctoral Dissertation). University of Oklahoma. Retrieved from http://hdl.handle.net/11244/299325

Chicago Manual of Style (16^th Edition):

Lucas, Jane. “FROM COOPERATION TO COMPETITION: HOW MICROBES AND INVERTEBRATES INTERACT IN A TROPICAL FOREST.” 2018. Doctoral Dissertation, University of Oklahoma. Accessed July 23, 2019. http://hdl.handle.net/11244/299325.

MLA Handbook (7^th Edition):

Lucas, Jane. “FROM COOPERATION TO COMPETITION: HOW MICROBES AND INVERTEBRATES INTERACT IN A TROPICAL FOREST.” 2018. Web. 23 Jul 2019.

Vancouver:

Lucas J. FROM COOPERATION TO COMPETITION: HOW MICROBES AND INVERTEBRATES INTERACT IN A TROPICAL FOREST. [Internet] [Doctoral dissertation]. University of Oklahoma; 2018. [cited 2019 Jul 23]. Available from: http://hdl.handle.net/11244/299325.

Council of Science Editors:

Lucas J. FROM COOPERATION TO COMPETITION: HOW MICROBES AND INVERTEBRATES INTERACT IN A TROPICAL FOREST. [Doctoral Dissertation]. University of Oklahoma; 2018. Available from: http://hdl.handle.net/11244/299325

Montana Tech

8. Staats, Molly Frances. FACTORS AFFECTING MERCURY BIOMAGNIFICATION IN RIVERINE FOOD WEBS IN THE ROCKY MOUNTAINS: CLARK FORK RIVER BASIN, MONTANA, U.S.A.

Degree: MS, 2011, Montana Tech

URL: https://scholarworks.umt.edu/etd/1328

► A number of studies suggest that Hg biomagnification in aquatic systems are dependent on two factors: a source of mercury and the potential for this… (more)

Subjects/Keywords: biomagnification; food web; mercury; mercuy methylation; wetlands

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Staats, M. F. (2011). FACTORS AFFECTING MERCURY BIOMAGNIFICATION IN RIVERINE FOOD WEBS IN THE ROCKY MOUNTAINS: CLARK FORK RIVER BASIN, MONTANA, U.S.A. (Masters Thesis). Montana Tech. Retrieved from https://scholarworks.umt.edu/etd/1328

Chicago Manual of Style (16^th Edition):

Staats, Molly Frances. “FACTORS AFFECTING MERCURY BIOMAGNIFICATION IN RIVERINE FOOD WEBS IN THE ROCKY MOUNTAINS: CLARK FORK RIVER BASIN, MONTANA, U.S.A.” 2011. Masters Thesis, Montana Tech. Accessed July 23, 2019. https://scholarworks.umt.edu/etd/1328.

MLA Handbook (7^th Edition):

Staats, Molly Frances. “FACTORS AFFECTING MERCURY BIOMAGNIFICATION IN RIVERINE FOOD WEBS IN THE ROCKY MOUNTAINS: CLARK FORK RIVER BASIN, MONTANA, U.S.A.” 2011. Web. 23 Jul 2019.

Vancouver:

Staats MF. FACTORS AFFECTING MERCURY BIOMAGNIFICATION IN RIVERINE FOOD WEBS IN THE ROCKY MOUNTAINS: CLARK FORK RIVER BASIN, MONTANA, U.S.A. [Internet] [Masters thesis]. Montana Tech; 2011. [cited 2019 Jul 23]. Available from: https://scholarworks.umt.edu/etd/1328.

Council of Science Editors:

Staats MF. FACTORS AFFECTING MERCURY BIOMAGNIFICATION IN RIVERINE FOOD WEBS IN THE ROCKY MOUNTAINS: CLARK FORK RIVER BASIN, MONTANA, U.S.A. [Masters Thesis]. Montana Tech; 2011. Available from: https://scholarworks.umt.edu/etd/1328

Cornell University

9. Fetzer, William. Disentangling The Effects Of Multiple Ecosystem Changes On Fish Population And Community Dynamics .

Degree: 2013, Cornell University

URL: http://hdl.handle.net/1813/34379

► North temperate lakes are undergoing diverse physical, chemical, and biological changes, including warming water temperatures, shifts in lake trophic states, and introductions of non-native species.… (more)

▼ North temperate lakes are undergoing diverse physical, chemical, and biological changes, including warming water temperatures, shifts in lake trophic states, and introductions of non-native species. These ecosystem perturbations rarely occur in isolation, making it difficult to evaluate the impacts of concurrent perturbations on population and community dynamics. Here, I use Oneida Lake, New York, USA, to study interactions among multiple ecological changes and their combined effects on age-0 and juvenile yellow perch (Perca flavescens). These ecological changes included diversification of the predator and prey communities, shifts in lake trophic state from eutrophic to mesotrophic, and an expansion of littoral habitats. Multiple long-term limnological and fisheries datasets were integrated with short-term diet studies of age-0 yellow perch and their predators from nearshore and offshore habitats to develop a multi-habitat understanding of lake-wide responses to ecosystem perturbations. Walleye (Sander vitreus) were still the most important predator on age-0 and juvenile yellow perch, though the importance of alternative predators, such as white perch (Morone americana), smallmouth bass (Micropterus dolomieu), and largemouth bass (Micropterus salmoides), was also high and has likely increased. Consumption of age-0 yellow perch was dominated by walleye and white perch in offshore habitats during early summer, but transitioned to walleye, smallmouth bass, and largemouth bass in nearshore habitats during the fall and second year of life. As ecological conditions within the lake changed, age-0 yellow perch population dynamics became increasingly driven by littoral habitats and the population-level reliance on benthic energy pathways increased from 10-20% in the 1960s to 30-70% in the 2000s. These results illustrate the importance of both nearshore and offshore habitats to age-0 and juvenile yellow perch population dynamics and highlight the complexity of population- and community-level responses to ecosystem perturbations. Advisors/Committee Members: Sullivan, Patrick J (committeeMember), Mills, Edward Lewis (committeeMember), Flecker, Alexander S (committeeMember), Sullivan, Patrick J (committeeMember), Decker, Daniel Joseph (committeeMember), Jackson, James R. (committeeMember).

Subjects/Keywords: food web dynamics; aquatic ecology; individual specialization

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Fetzer, W. (2013). Disentangling The Effects Of Multiple Ecosystem Changes On Fish Population And Community Dynamics . (Thesis). Cornell University. Retrieved from http://hdl.handle.net/1813/34379

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Fetzer, William. “Disentangling The Effects Of Multiple Ecosystem Changes On Fish Population And Community Dynamics .” 2013. Thesis, Cornell University. Accessed July 23, 2019. http://hdl.handle.net/1813/34379.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Fetzer, William. “Disentangling The Effects Of Multiple Ecosystem Changes On Fish Population And Community Dynamics .” 2013. Web. 23 Jul 2019.

Vancouver:

Fetzer W. Disentangling The Effects Of Multiple Ecosystem Changes On Fish Population And Community Dynamics . [Internet] [Thesis]. Cornell University; 2013. [cited 2019 Jul 23]. Available from: http://hdl.handle.net/1813/34379.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Fetzer W. Disentangling The Effects Of Multiple Ecosystem Changes On Fish Population And Community Dynamics . [Thesis]. Cornell University; 2013. Available from: http://hdl.handle.net/1813/34379

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Waterloo

10. Ives, Jessica. Isotopic niche use by the invasive mysid Hemimysis anomala in the Laurentian Great Lakes basin.

Degree: 2013, University of Waterloo

URL: http://hdl.handle.net/10012/7518

► Invasive species are a known stressor on aquatic ecosystems, particularly in the waters of the Great Lakes basin. A recent invader, Hemimysis anomala, has had… (more)

▼ Invasive species are a known stressor on aquatic ecosystems, particularly in the waters of the Great Lakes basin. A recent invader, Hemimysis anomala, has had significant impacts on the food webs of Europe, where it invaded previous to its spread to North America. However, despite the fact that Hemimysis is now widespread in the Great Lakes basin, no analysis has been done on the trophic position of Hemimysis in North America invaded sites. This thesis used carbon (δ13C) and nitrogen (δ15N) stable isotopes to examine spatial and temporal patterns in Hemimysis trophic niche use in invaded North American sites in an attempt to broaden the knowledge base on this invader and to examine potential impacts this invader may have on the food webs of the Great Lakes. A spatial comparison of trophic niche use by Hemimysis among 13 sites in Lake Erie, Lake Ontario, and the St. Lawrence River was conducted between late July and mid-September of 2011. Main sources of carbon (benthic versus pelagic production) and trophic offset, or trophic distance from basal food web items, of Hemimysis were quantified using Hemimysis δ13C and δ15N values. Results indicated that: 1) Hemimysis relied predominantly on pelagic carbon sources at the majority of sites, and isotopic differences between life-stages existed at two of the 13 sites examined, 2) the trophic offset and reliance on pelagic food sources did not differ significantly between lotic and lentic sites, and 3) the isotopic niche width of Hemimysis was spatially heterogeneous, varying by an order of magnitude among sites, but was unrelated to the degree of isotopic variation in the basal food web at each site. Observed ranges in trophic offset and the pelagic fraction of dietary carbon indicate that Hemimysis derives carbon from both benthic and water column sources, as well as at multiple trophic levels. Results support the notion that Hemimysis is an opportunistic omnivore that displays significant dietary flexibility. To test the relative importance of key biotic and abiotic factors, taken from the literature, in driving Hemimysis isotopic variation, a temporal analysis was conducted at two North American sites, one in Lake Ontario and one in the St. Lawrence River, which were repeatedly sampled for Hemimysis and related food web items between September 2008 and January 2012. Seasonal patterns of winter enrichment – summer depletion were found in Hemimysis δ15N in Lake Ontario, but a similar pattern was not seen in the St. Lawrence River. Multiple regression models were used to determine the importance of water temperature, Hemimysis C:N ratios, Hemimysis length, and the isotopic values of basal food web components in explaining observed variation in Hemimysis δ13C and δ15N values. Significant relationships were found between Hemimysis isotopic values and water temperature, but relationships with the isotopic signatures of the pelagic basal food web were weak or nonexistent. Hemimysis δ13C values were significantly correlated with C:N ratios. Strong evidence of an ontogenetic…

Subjects/Keywords: stable isotopes; invasive species; food web

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Ives, J. (2013). Isotopic niche use by the invasive mysid Hemimysis anomala in the Laurentian Great Lakes basin. (Thesis). University of Waterloo. Retrieved from http://hdl.handle.net/10012/7518

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Ives, Jessica. “Isotopic niche use by the invasive mysid Hemimysis anomala in the Laurentian Great Lakes basin.” 2013. Thesis, University of Waterloo. Accessed July 23, 2019. http://hdl.handle.net/10012/7518.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Ives, Jessica. “Isotopic niche use by the invasive mysid Hemimysis anomala in the Laurentian Great Lakes basin.” 2013. Web. 23 Jul 2019.

Vancouver:

Ives J. Isotopic niche use by the invasive mysid Hemimysis anomala in the Laurentian Great Lakes basin. [Internet] [Thesis]. University of Waterloo; 2013. [cited 2019 Jul 23]. Available from: http://hdl.handle.net/10012/7518.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Ives J. Isotopic niche use by the invasive mysid Hemimysis anomala in the Laurentian Great Lakes basin. [Thesis]. University of Waterloo; 2013. Available from: http://hdl.handle.net/10012/7518

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Michigan

11. Boucher, Nicholas. Examining the relative effects of nutrient loads and invasive Dreissena mussels on Lake Michigan’s food web using an ecosystem model.

Degree: MS, School for Environment and Sustainability, 2019, University of Michigan

URL: http://hdl.handle.net/2027.42/148814

► Lake Michigan has undergone ecosystem-wide changes over the past century due to changing nutrient loads and an influx of invasive species. Zebra (Dreissena polymorpha) and… (more)

▼ Lake Michigan has undergone ecosystem-wide changes over the past century due to changing nutrient loads and an influx of invasive species. Zebra (Dreissena polymorpha) and Quagga mussels (D. bugensis; collectively Dreissenid mussels) have been a particularly impactful invasive species, and currently account for the majority of benthic biomass in Lake Michigan. Dreissenid mussel filtration, along with declining nutrient loads following the 1972 Great Lakes Water Quality Agreement, has reduced primary productivity and caused oligotrophication in Lake Michigan’s offshore zone and a concurrent increase in nuisance algal blooms nearshore. However, the relative effects of these two factors on Lake Michigan’s food web remain a key knowledge gap. To quantify the relative effects of mussel grazing and nutrient loads on the Lake Michigan food web, I used the Lake Michigan Atlantis Model (LMAM) to predict biomass changes of Lake Michigan species under six model scenarios. The Atlantis model is a three-dimensional, spatially-explicit ecosystem model that takes into account water movement, seasonality, and food web interactions to dynamically predict biomass for functional groups at each trophic level over time. I calibrated the model using available agency food web data from 1994 to 2010, then ran 25 year simulations of 6 different scenarios including three nutrient loads (double baseline load, half baseline load, and baseline 1994 load) and two mussel scenarios (mussels present or absent). Model results indicated that mussel grazing has a much greater relative impact on the food web than changes in nutrient loads. Simulated mussel grazing on phytoplankton radiated up the food web to cause resource limitation for prey fish and piscivores. Effects on functional group biomass owing to changes in phosphorus loading were largely masked by observed mussel effects. My findings contrast with other modeling studies that found nutrient loads also have a significant effect on productivity and biomass. These results suggest that management strategies that increase nutrient flow into Lake Michigan would have negligible positive effects on fish biomass. Advisors/Committee Members: Zhang, Hongyan (advisor), Rutherford, Edward (advisor), Mason, Doran (committee member).

Subjects/Keywords: Lake Michigan; ecosystem modeling; food web

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Boucher, N. (2019). Examining the relative effects of nutrient loads and invasive Dreissena mussels on Lake Michigan’s food web using an ecosystem model. (Masters Thesis). University of Michigan. Retrieved from http://hdl.handle.net/2027.42/148814

Chicago Manual of Style (16^th Edition):

Boucher, Nicholas. “Examining the relative effects of nutrient loads and invasive Dreissena mussels on Lake Michigan’s food web using an ecosystem model.” 2019. Masters Thesis, University of Michigan. Accessed July 23, 2019. http://hdl.handle.net/2027.42/148814.

MLA Handbook (7^th Edition):

Boucher, Nicholas. “Examining the relative effects of nutrient loads and invasive Dreissena mussels on Lake Michigan’s food web using an ecosystem model.” 2019. Web. 23 Jul 2019.

Vancouver:

Boucher N. Examining the relative effects of nutrient loads and invasive Dreissena mussels on Lake Michigan’s food web using an ecosystem model. [Internet] [Masters thesis]. University of Michigan; 2019. [cited 2019 Jul 23]. Available from: http://hdl.handle.net/2027.42/148814.

Council of Science Editors:

Boucher N. Examining the relative effects of nutrient loads and invasive Dreissena mussels on Lake Michigan’s food web using an ecosystem model. [Masters Thesis]. University of Michigan; 2019. Available from: http://hdl.handle.net/2027.42/148814

University of Canterbury

12. Peralta, Guadalupe. Food webs from natural to production forests: composition, phylogeny and functioning.

Degree: School of Biological Sciences, 2013, University of Canterbury

URL: http://hdl.handle.net/10092/8556

► Habitat loss and fragmentation have been identified as the main drivers of biodiversity loss. These drivers increase the proportion of habitat edges and change the… (more)

▼ Habitat loss and fragmentation have been identified as the main drivers of biodiversity loss. These drivers increase the proportion of habitat edges and change the configuration of landscapes. Habitat edges are known to affect ecological patterns and processes, however, is still unknown how these boundaries affect the assemblage of interactions among species within a community, and particularly its structure. Food webs depict not only the composition of the community, but also the feeding links, which represent a measure of energy flow. Therefore, they can inform about the relationships among community diversity, stability, and ecosystem functions. This thesis explores the effects of habitat edges across native vs. managed forests on the food web of a tri-trophic system comprising plants, herbivores (Lepidoptera larvae) and predators (parasitoids). Particularly, it addresses three main objectives: 1) how food webs at habitat edges are assembled from the species and interactions present in the adjoining habitats; 2) how phylogenetic diversity and the coevolutionary signal among interacting species change across a habitat edge gradient; and 3) whether the mechanisms driving community-wide consumption rates and the ecosystem service of pest control are related to structural characteristics of the food webs. The key findings of this thesis are that, despite the composition of species and interactions of native and managed habitats merging at their interface, food-web structure did not arise as a simple combination of its adjacent habitat webs, potentially due to differential responses of organisms to habitat edges. Moreover, beyond taxonomic composition, the phylogenetic diversity and signal of coevolution among interacting species also change between habitat types, even though this did not translate to changes in consumption rates. Consumption rates and their stability increased with complementarity and redundancy in resource-use among predators. This reflects how environmental changes such as habitat fragmentation can have an effect beyond composition per se, affecting the assemblage of species interactions and even potentially interfering with natural evolutionary processes. Therefore, using interaction-network approaches for determining the impacts of changes may shed light on the underlying mechanisms driving such changes, and help to develop landscape management plans that reduce negative effects on species assemblages.

Subjects/Keywords: food web; fragmentation; habitat edges; phylogenetic diversity; coevolutionary signal; ecosystem functioning; food-web structure

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Peralta, G. (2013). Food webs from natural to production forests: composition, phylogeny and functioning. (Thesis). University of Canterbury. Retrieved from http://hdl.handle.net/10092/8556

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Peralta, Guadalupe. “Food webs from natural to production forests: composition, phylogeny and functioning.” 2013. Thesis, University of Canterbury. Accessed July 23, 2019. http://hdl.handle.net/10092/8556.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Peralta, Guadalupe. “Food webs from natural to production forests: composition, phylogeny and functioning.” 2013. Web. 23 Jul 2019.

Vancouver:

Peralta G. Food webs from natural to production forests: composition, phylogeny and functioning. [Internet] [Thesis]. University of Canterbury; 2013. [cited 2019 Jul 23]. Available from: http://hdl.handle.net/10092/8556.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Peralta G. Food webs from natural to production forests: composition, phylogeny and functioning. [Thesis]. University of Canterbury; 2013. Available from: http://hdl.handle.net/10092/8556

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Otago

13. Hussein, Areege Hassan. A web-based dietary assessment method for exploring iron bioavailability: developing a food list and pretesting .

Degree: 2014, University of Otago

URL: http://hdl.handle.net/10523/4626

► Iron deficiency is the most common nutrient disorder worldwide. To assess intake in a population, food frequency questionnaires (FFQs) are commonly used as a low-burden,… (more)

Subjects/Keywords: Web-MBIAT; Web-Meal Based Intake Assessment Tool; Food frequency questionnaire; iron; pretesting

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Hussein, A. H. (2014). A web-based dietary assessment method for exploring iron bioavailability: developing a food list and pretesting . (Masters Thesis). University of Otago. Retrieved from http://hdl.handle.net/10523/4626

Chicago Manual of Style (16^th Edition):

Hussein, Areege Hassan. “A web-based dietary assessment method for exploring iron bioavailability: developing a food list and pretesting .” 2014. Masters Thesis, University of Otago. Accessed July 23, 2019. http://hdl.handle.net/10523/4626.

MLA Handbook (7^th Edition):

Hussein, Areege Hassan. “A web-based dietary assessment method for exploring iron bioavailability: developing a food list and pretesting .” 2014. Web. 23 Jul 2019.

Vancouver:

Hussein AH. A web-based dietary assessment method for exploring iron bioavailability: developing a food list and pretesting . [Internet] [Masters thesis]. University of Otago; 2014. [cited 2019 Jul 23]. Available from: http://hdl.handle.net/10523/4626.

Council of Science Editors:

Hussein AH. A web-based dietary assessment method for exploring iron bioavailability: developing a food list and pretesting . [Masters Thesis]. University of Otago; 2014. Available from: http://hdl.handle.net/10523/4626

University of Canterbury

14. Warburton, Helen J. The role of body size in predator-prey interactions and community structure.

Degree: Biological Sciences, 2015, University of Canterbury

URL: http://hdl.handle.net/10092/11358

► Body size is a fundamental property of an organism. Consistent body size-related patterns, relevant to food webs, have been found at the individual (e.g. metabolism),… (more)

▼ Body size is a fundamental property of an organism. Consistent body size-related patterns, relevant to food webs, have been found at the individual (e.g. metabolism), population (e.g. predator-prey interactions), and community (e.g. body-size scaling with abundance) levels of ecological organisation. These patterns represent key components of food webs, so body-size distributions should be representative of a wide range of food web processes. Therefore, knowledge on the controls of the distribution of body sizes within a community should aid in the understanding of community structure and stability. I focused on two key body size-associated relationships in food webs: the relationship between body mass/size (M) and abundance (N), and relationships between body size and predator-prey interaction strengths. Analysis of M-N data, collected from stream communities spanning habitat size and flooding disturbance gradients, indicated that habitat size limited top predator size, whereas disturbance limited their abundance. These results highlight how M-N relationships, and changes in body size patterns across communities in general, are particularly useful tools for understanding influences on community structure. Mesocosm experiments were used to investigate how relationships between predator-prey body mass ratios (PPMR) and predator-prey interaction strengths differed when prey defences and density varied. Larger predators generally had stronger per-capita interaction strengths however, prey morphological defences and prey abundance significantly altered the relationship between body size and per-capita interaction strengths. Defended prey were eaten less than undefended prey and the relationship between PPMR and interaction strength was steeper at higher prey densities. These results indicated that while PPMRs are generally good predictors of interaction strengths, the incorporation of other general traits, beyond body size, into current theory would improve prediction of interaction strengths in food webs. An in-stream channel experiment was conducted to investigate the population, compared to per-capita, effects of top-predator body size and abundance on the strength of top-down interactions in food webs. By manipulating top-predator size and abundance, but keeping top-predator (brown trout) biomass constant, I showed that smaller, more abundant top predators had greater top-down effects compared to, fewer large predators of equivalent biomass. Overall, my results indicate that body size-related relationships can be used to describe changes in predator-prey interaction strengths, community structure and by extension possibly community stability. However, the usefulness of these relationships could be improved by incorporating traits over and above body size, which would aid in the prediction of community stability as communities face ongoing anthropogenic pressures.

Subjects/Keywords: food web; predator-prey interactions; body size; freshwater

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Warburton, H. J. (2015). The role of body size in predator-prey interactions and community structure. (Thesis). University of Canterbury. Retrieved from http://hdl.handle.net/10092/11358

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Warburton, Helen J. “The role of body size in predator-prey interactions and community structure.” 2015. Thesis, University of Canterbury. Accessed July 23, 2019. http://hdl.handle.net/10092/11358.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Warburton, Helen J. “The role of body size in predator-prey interactions and community structure.” 2015. Web. 23 Jul 2019.

Vancouver:

Warburton HJ. The role of body size in predator-prey interactions and community structure. [Internet] [Thesis]. University of Canterbury; 2015. [cited 2019 Jul 23]. Available from: http://hdl.handle.net/10092/11358.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Warburton HJ. The role of body size in predator-prey interactions and community structure. [Thesis]. University of Canterbury; 2015. Available from: http://hdl.handle.net/10092/11358

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Canterbury

15. Jellyman, Phillip Graeme. Disentangling the effects of disturbance and habitat size on stream community structure.

Degree: School of Biological Sciences, 2011, University of Canterbury

URL: http://hdl.handle.net/10092/5239

► Our ability to predict community responses to environmental stress remains limited. To address this issue, I investigated how species abundance, community composition and food-web structure… (more)

▼ Our ability to predict community responses to environmental stress remains limited. To address this issue, I investigated how species abundance, community composition and food-web structure varied across abiotic gradients (principally disturbance and habitat size) in New Zealand streams. In surveys, community composition, biomass and richness were all strongly influenced by flood-related habitat disturbance, although disturbance influenced each trophic level via different mechanisms. Experiments indicated that macroinvertebrate prey communities were primarily structured by physical disturbance effects, whereas predatory fish communities were structured by physical disturbance effects and disturbance-mediated changes to prey communities. Prey community biomass and composition affected fish species identity and abundance and an in situ stream channel experiment suggested that prey communities were structured by trade-offs between resisting biotic interactions in physically stable environments and successfully exploiting highly disturbed habitats. The prey community traits associated with different disturbance regimes then directly influenced the composition and predatory impact of the resultant fish communities. In addition to disturbance-mediated biotic interactions, abiotic gradients also provided strong selection pressures on predatory fish communities. In particular, disturbance and habitat size strongly influenced predator community responses (e.g., biomass and maximum body size) in surveys and experiments. However, a habitat’s capacity to support predator community biomass was largely determined by its size. Food-web structure changed with habitat size; small streams supported more prey than predator biomass, whereas large streams had inverted biomass pyramids (i.e., more predator than prey biomass). Similar relationships between food-web structure and habitat size were found in grassland and forested streams, but terrestrial invertebrate subsidies meant that forested streams supported more predator biomass per unit area than grassland stream food webs. My results indicate that human actions resulting in habitat loss (e.g., water abstraction or river impoundment) and increases in flood-related disturbance events (e.g., climate change) are likely to have significant impacts on stream food webs, ultimately leading to habitats that support smaller fish communities (i.e., less biomass, smaller body size). This means that ecologists and managers will need to consider the separate, interactive and indirect effects of disturbance and habitat size on ecological communities if we are to accurately predict and manage food-web responses to global environmental change.

Subjects/Keywords: ecology; streams; community; disturbance; habitat size; fish; invertebrates; food web

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Jellyman, P. G. (2011). Disentangling the effects of disturbance and habitat size on stream community structure. (Thesis). University of Canterbury. Retrieved from http://hdl.handle.net/10092/5239

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Jellyman, Phillip Graeme. “Disentangling the effects of disturbance and habitat size on stream community structure.” 2011. Thesis, University of Canterbury. Accessed July 23, 2019. http://hdl.handle.net/10092/5239.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Jellyman, Phillip Graeme. “Disentangling the effects of disturbance and habitat size on stream community structure.” 2011. Web. 23 Jul 2019.

Vancouver:

Jellyman PG. Disentangling the effects of disturbance and habitat size on stream community structure. [Internet] [Thesis]. University of Canterbury; 2011. [cited 2019 Jul 23]. Available from: http://hdl.handle.net/10092/5239.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Jellyman PG. Disentangling the effects of disturbance and habitat size on stream community structure. [Thesis]. University of Canterbury; 2011. Available from: http://hdl.handle.net/10092/5239

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

NSYSU

16. Chang, Chih-Hsien. The biology of the snail Cerithium zonatum in an intertidal zone of Green Island.

Degree: Master, Marine Biology, 2010, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0908110-093906

► Cerithium zonatum is a dominate species in an intertidal zone of Shi-Lang, Green Island. This study aimed to characterize the population dynamics, reproduction and trophic… (more)

Subjects/Keywords: reproduction; population dynamics; isotope; Cerithium zonatum; food web

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Chang, C. (2010). The biology of the snail Cerithium zonatum in an intertidal zone of Green Island. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0908110-093906

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Chang, Chih-Hsien. “The biology of the snail Cerithium zonatum in an intertidal zone of Green Island.” 2010. Thesis, NSYSU. Accessed July 23, 2019. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0908110-093906.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Chang, Chih-Hsien. “The biology of the snail Cerithium zonatum in an intertidal zone of Green Island.” 2010. Web. 23 Jul 2019.

Vancouver:

Chang C. The biology of the snail Cerithium zonatum in an intertidal zone of Green Island. [Internet] [Thesis]. NSYSU; 2010. [cited 2019 Jul 23]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0908110-093906.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Chang C. The biology of the snail Cerithium zonatum in an intertidal zone of Green Island. [Thesis]. NSYSU; 2010. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0908110-093906

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Humboldt State University

17. Best, Michael. Ecological role of the salamander Ensatina eschscholtzii: direct impacts on the arthropod assemblage and indirect influence on the carbon cycle in mixed hardwood/conifer forest in Northwestern California.

Degree: MS, Natural Resources: Wildlife, 2012, Humboldt State University

URL: http://hdl.handle.net/2148/1033

► Terrestrial salamanders are the most abundant vertebrate predators in northwestern California forests, fulfilling a vital role converting invertebrate to vertebrate biomass. The most common of… (more)

Subjects/Keywords: Salamanders; Ensatina; Carbon; Leaf litter; Food web; Trophic cascades; Invertebrates; Plethodontidae

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Best, M. (2012). Ecological role of the salamander Ensatina eschscholtzii: direct impacts on the arthropod assemblage and indirect influence on the carbon cycle in mixed hardwood/conifer forest in Northwestern California. (Masters Thesis). Humboldt State University. Retrieved from http://hdl.handle.net/2148/1033

Chicago Manual of Style (16^th Edition):

Best, Michael. “Ecological role of the salamander Ensatina eschscholtzii: direct impacts on the arthropod assemblage and indirect influence on the carbon cycle in mixed hardwood/conifer forest in Northwestern California.” 2012. Masters Thesis, Humboldt State University. Accessed July 23, 2019. http://hdl.handle.net/2148/1033.

MLA Handbook (7^th Edition):

Best, Michael. “Ecological role of the salamander Ensatina eschscholtzii: direct impacts on the arthropod assemblage and indirect influence on the carbon cycle in mixed hardwood/conifer forest in Northwestern California.” 2012. Web. 23 Jul 2019.

Vancouver:

Best M. Ecological role of the salamander Ensatina eschscholtzii: direct impacts on the arthropod assemblage and indirect influence on the carbon cycle in mixed hardwood/conifer forest in Northwestern California. [Internet] [Masters thesis]. Humboldt State University; 2012. [cited 2019 Jul 23]. Available from: http://hdl.handle.net/2148/1033.

Council of Science Editors:

Best M. Ecological role of the salamander Ensatina eschscholtzii: direct impacts on the arthropod assemblage and indirect influence on the carbon cycle in mixed hardwood/conifer forest in Northwestern California. [Masters Thesis]. Humboldt State University; 2012. Available from: http://hdl.handle.net/2148/1033

University of Plymouth

18. Lauria, Valentina. Impacts of climate change and fisheries on the Celtic Sea ecosystem.

Degree: PhD, 2012, University of Plymouth

URL: http://hdl.handle.net/10026.1/1166

► Climate change and fisheries have affected marine environments worldwide leading to impacts on ecosystem structure and functioning. However there is clear evidence of spatial variability… (more)

▼ Climate change and fisheries have affected marine environments worldwide leading to impacts on ecosystem structure and functioning. However there is clear evidence of spatial variability in the response of these impacts both within and among marine ecosystems. Although several studies have tried to explain the effect of these impacts on marine food webs, it is unclear how they interact, and how they may affect marine ecosystems remains an important unanswered question. This suggests the urgent need for multiple-trophic level and ecosystem-based management approaches to account for both fisheries and climate change impacts at ocean basins across the globe. Marine apex predators, such as seabirds, are vulnerable to the effects of both climate and fishing impacts, and can be used as reliable and sensitive bio-indicators of the status of the marine ecosystem. The Celtic Sea ecosystem is a productive shelf region in the Northeast Atlantic. It is characterized by high fish and invertebrate biodiversity. In addition, internationally important numbers of seabirds, such as Northern gannet Morus bassanus (L.), Manx shearwater Puffinus puffinus (B.), Common guillemot Uria aalge (P.) and Black-legged kittiwake Rissa tridactyla (L.), breed along the Celtic Sea coasts. In recent years, fisheries from across Europe have intensively exploited the Celtic Sea, leading to changes in stock structure. Moreover, the increase in annual average Sea Surface Temperature by 0.67 °C over the past two decades has altered the composition of plankton communities. These impacts, independently and in tandem, are likely to have had dramatic effects upon the Celtic Sea food web emphasizing the need to enhance our understanding of this important marine ecosystem. In this thesis the effects of climate change and fisheries on the Celtic Sea pelagic food web are evaluated, in particular focussing on the response of seabird populations. This is in part because of recent declines in the breeding success of many seabird colonies in the northeast Atlantic, particularly around the North Sea. Long-term data across four trophic levels (phytoplankton, zooplankton, mid-trophic level fish and seabirds) and different modelling approaches are used to determine factors influencing seabird productivity at different geographical scales. First, I review the direct and indirect effects of climate change and fisheries upon marine ecosystems, as well as their impacts upon marine birds. Second, I use data collected during 1986-2007 from a single seabird colony, across four trophic levels, to investigate long-term direct and indirect climate effects. The results suggest only a weak climate signal in the Celtic Sea, and this is only evident between mid-trophic level fish and certain species of seabird. Third, a similar multi-trophic level approach across three nearby regions in the southwest UK (Irish Sea, Celtic Sea, and English Channel) reveal no evidence of a bottom-up signal during the period 1991-2007. These findings are in contrast with the nearby North Sea region, where…

Subjects/Keywords: 333.956; seabirds, climate change, fisheries, pelagic food web

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Lauria, V. (2012). Impacts of climate change and fisheries on the Celtic Sea ecosystem. (Doctoral Dissertation). University of Plymouth. Retrieved from http://hdl.handle.net/10026.1/1166

Chicago Manual of Style (16^th Edition):

Lauria, Valentina. “Impacts of climate change and fisheries on the Celtic Sea ecosystem.” 2012. Doctoral Dissertation, University of Plymouth. Accessed July 23, 2019. http://hdl.handle.net/10026.1/1166.

MLA Handbook (7^th Edition):

Lauria, Valentina. “Impacts of climate change and fisheries on the Celtic Sea ecosystem.” 2012. Web. 23 Jul 2019.

Vancouver:

Lauria V. Impacts of climate change and fisheries on the Celtic Sea ecosystem. [Internet] [Doctoral dissertation]. University of Plymouth; 2012. [cited 2019 Jul 23]. Available from: http://hdl.handle.net/10026.1/1166.

Council of Science Editors:

Lauria V. Impacts of climate change and fisheries on the Celtic Sea ecosystem. [Doctoral Dissertation]. University of Plymouth; 2012. Available from: http://hdl.handle.net/10026.1/1166

University of Tasmania

19. Liao, JS. Using Web 2.0 to enhance SME agri-food supply chain management: a Tasmanian study.

Degree: 2013, University of Tasmania

URL: https://eprints.utas.edu.au/17542/1/Whole-Liao%2C_Junheng_thesis.pdf

► This research project investigates the potential for Web 2.0 techniques (in this context, social media and websites using very accessible and scalable publishing techniques) to… (more)

▼ This research project investigates the potential for Web 2.0 techniques (in this context, social media and websites using very accessible and scalable publishing techniques) to support and enhance agri-food supply chains within the Australian State of Tasmania. The research is based on three major areas of focus: agricultural and food supply chains (agri-food supply chains); small and medium size enterprises (SMEs) in these supply chains; and Web 2.0. To achieve a representative outcome, both quantitative and qualitative data were gathered from a number of sub-sectors comprising seafood, dairy, livestock, fruit and vegetable. The empirical research process made use of three data gathering stages: 10 key informant interviews to gather expert opinion prior to broader data collection, followed by a survey of 28 Tasmanian primary producers and, after refinement of the initial model, a validation focus group. Since the majority of the interviewees had only limited familiarity with Web 2.0, a ‘typical’ Web 2.0 prototype was developed and presented during the survey interviews, allowing participants to trial the Web 2.0 application in a supply chain management (SCM) environment without risking their real businesses. The results indicate the widespread popular view of the prevalence of Internet use. The majority of interviewees had also used some types of Web 2.0 technologies, although only a limited number of participants had used this sort of ICT at a sophisticated level – most interviewees used the Internet simply to obtain information, rather than actively engaging in content contribution. In particular, few of these SMEs had applied Web 2.0 to their agribusinesses, or to their supply chain activities. This situation is starting to change, however, as fragmentary Web 2.0 SCM applications begin to appear in many key areas of supply chain management including: procurement, processing and inventory management, marketing and sales, transport and customer service, as well as in all the sub-sectors investigated – some of them as a result of involvement in this project. One fisherman even developed his own iPhone app with record keeping and traceability functions for his fishing business. The outcomes of this project suggest that applying Web 2.0 to SCM is not only driven by economic benefit, but also by lifestyle enhancement. Perceived effort expectancy, communication quality enhancement and social & other external factors also have significant effects on the adoption decision. Moreover, the degree of those perceptions also differs by gender (though, interestingly, it was the female participants who were most techno-savvy), age, customer types and technology experience – although the relatively small size of the sample means that some of these interactions will require further testing before their generalisability can be confirmed. Interestingly, the moderating effects of gender and age are diminishing as technology becomes more readily available and easier to use – and as Information Technology literacy becomes more…

Subjects/Keywords: Web 2.0; Agri-food; SMEs; supply chain management; Tasmania

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Liao, J. (2013). Using Web 2.0 to enhance SME agri-food supply chain management: a Tasmanian study. (Thesis). University of Tasmania. Retrieved from https://eprints.utas.edu.au/17542/1/Whole-Liao%2C_Junheng_thesis.pdf

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Liao, JS. “Using Web 2.0 to enhance SME agri-food supply chain management: a Tasmanian study.” 2013. Thesis, University of Tasmania. Accessed July 23, 2019. https://eprints.utas.edu.au/17542/1/Whole-Liao%2C_Junheng_thesis.pdf.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Liao, JS. “Using Web 2.0 to enhance SME agri-food supply chain management: a Tasmanian study.” 2013. Web. 23 Jul 2019.

Vancouver:

Liao J. Using Web 2.0 to enhance SME agri-food supply chain management: a Tasmanian study. [Internet] [Thesis]. University of Tasmania; 2013. [cited 2019 Jul 23]. Available from: https://eprints.utas.edu.au/17542/1/Whole-Liao%2C_Junheng_thesis.pdf.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Liao J. Using Web 2.0 to enhance SME agri-food supply chain management: a Tasmanian study. [Thesis]. University of Tasmania; 2013. Available from: https://eprints.utas.edu.au/17542/1/Whole-Liao%2C_Junheng_thesis.pdf

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Louisiana State University

20. Althauser, Laura Lynette. An Ecopath/Ecosim analysis of an estuarine food web: seasonal energy flow and response to river-flow related perturbations.

Degree: MS, Oceanography and Atmospheric Sciences and Meteorology, 2002, Louisiana State University

URL: etd-0407103-123955 ; https://digitalcommons.lsu.edu/gradschool_theses/1449

► Estuaries are often the receiving basins for major river systems which makes them vulnerable to anthropogenic influences. I used Ecopath and Ecosim to investigate the… (more)

▼ Estuaries are often the receiving basins for major river systems which makes them vulnerable to anthropogenic influences. I used Ecopath and Ecosim to investigate the structure of the Weeks Bay, Alabama, USA food web, and the responses of the food web to bottom-up perturbations. Four season-specific steady-state Ecopath models were developed and used to compare the production, biomass, consumption, biomass flows, and higher order indices of ecosystem functioning of the Weeks Bay food web under winter, spring, summer, and fall conditions. The season-specific Ecopath snapshots indicated that the structure of the Weeks Bay food web was resilient. Winter had the lowest biomass and production and heavy reliance on detritus, leading to high biomass and production in spring and summer, culminating in the most complex food web in fall. Ecosim simulations were performed that examined the responses of the Weeks Bay food web to single pulses of high and low flow years, more extreme seasonal variation of river flow, and interannual variation in river flow (two high-flow years followed by four low-flow years). Baseline simulations produced cyclic behavior at the lowest trophic levels that was gradually dampened as one moved to higher trophic levels of the food web. Lower trophic level groups showed the largest responses and quickest recovery from single pulses of high flow and low flow, while upper trophic level groups showed generally the smallest responses and longest recovery. More extreme within-year variation in river flow caused exaggeration of the seasonal responses predicted under baseline conditions, with little or no change in the average long-term biomass of groups. Interannual variation in high and low flow was mimicked in the biomasses of lower trophic level groups, with some of the upper trophic level groups responding with small, yet consistent, net changes in their long-term average biomass. Additional simulations showed that net changes in biomass were due to the magnitude, number, and temporal arrangement of high- and low-flow years. Results suggest that changes in nutrient influxes or precipitation patterns can affect the variation and long-term average biomass of key groups of the Weeks Bay food web.

Subjects/Keywords: ecosim; food-web; estuary; ecopath

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Althauser, L. L. (2002). An Ecopath/Ecosim analysis of an estuarine food web: seasonal energy flow and response to river-flow related perturbations. (Masters Thesis). Louisiana State University. Retrieved from etd-0407103-123955 ; https://digitalcommons.lsu.edu/gradschool_theses/1449

Chicago Manual of Style (16^th Edition):

Althauser, Laura Lynette. “An Ecopath/Ecosim analysis of an estuarine food web: seasonal energy flow and response to river-flow related perturbations.” 2002. Masters Thesis, Louisiana State University. Accessed July 23, 2019. etd-0407103-123955 ; https://digitalcommons.lsu.edu/gradschool_theses/1449.

MLA Handbook (7^th Edition):

Althauser, Laura Lynette. “An Ecopath/Ecosim analysis of an estuarine food web: seasonal energy flow and response to river-flow related perturbations.” 2002. Web. 23 Jul 2019.

Vancouver:

Althauser LL. An Ecopath/Ecosim analysis of an estuarine food web: seasonal energy flow and response to river-flow related perturbations. [Internet] [Masters thesis]. Louisiana State University; 2002. [cited 2019 Jul 23]. Available from: etd-0407103-123955 ; https://digitalcommons.lsu.edu/gradschool_theses/1449.

Council of Science Editors:

Althauser LL. An Ecopath/Ecosim analysis of an estuarine food web: seasonal energy flow and response to river-flow related perturbations. [Masters Thesis]. Louisiana State University; 2002. Available from: etd-0407103-123955 ; https://digitalcommons.lsu.edu/gradschool_theses/1449

21. Merkley, Steven. Resource Quantity and Quality in Cross-Ecosystem Food Web Subsidies.

Degree: Evolution, Ecology and Organismal Biology, 2016, University of California – Riverside

URL: http://www.escholarship.org/uc/item/6gc9g4df

► Prey moving from donor to recipient ecosystems (e.g. freshwater to terrestrial) are known as cross-ecosystem food web subsidies. These prey can affect the distribution and… (more)

▼ Prey moving from donor to recipient ecosystems (e.g. freshwater to terrestrial) are known as cross-ecosystem food web subsidies. These prey can affect the distribution and abundance of subsidized predators. Most investigators have focused on how the quantity of prey (body size and biomass) affect predators, often assuming that resource quantity is an accurate proxy for resource quality. In the present dissertation, I used meta-analysis, lab, and field experiments to show the importance of measuring resource quality and how shifting quality of prey subsidies (insects) can influence a subsidized predator (Tetragnatha sp. spiders). Specifically, I define resource quality as a function of body nutrient content (%N) and carbon:nitrogen (C:N) ratio. In chapter two using data from 30 studies and ~250 effect sizes, I performed meta-analyses and demonstrated that increases in metrics of resource quantity (body size and dry weight) are not synonymous with increases in metrics of resource quality. In fact, there was a negative correlation between body phosphorus content (%P) and resource quantity. In chapter three, I tested how terrestrial spiders (Tetragnatha nitens) responded to different levels of prey quality by rearing them on three different prey: midges (Chironomus dilutus), mosquitoes (Culex quinquefasciatus), and fruit flies (Drosophila melanogaster). Mosquitoes were the lowest quality resource and lowered the nutrient content and stoichiometry of spider predators compared to the other treatments. Spiders fed on mosquitoes also suffered delays in growth and development due to being fed on the lower quality resource. Lastly, in chapter four, I tested how terrestrial spiders (Tetragnatha sp.) were affected by an aquatic nutrient enrichment in experimental field mesocosms. Abundance, body size (tibia + patella length (TPL) of first walking leg) (mm), biomass (mg), or nutrient stoichiometry (C:N ratio) of the subsidized Tetragnatha sp. spider did not differ significantly between enriched and non-enriched pools. However, significantly higher nitrogen content (% body N) was in Tetragnatha sp. spiders from the Santa Ana River inflow in a constructed treatment wetland compared to a site farther along this aquatic nutrient gradient during July 2015. Nutrient enrichment of the aquatic ecosystem due to anthropogenic runoff during a summer monsoon event may explain this pattern.

Subjects/Keywords: Ecology; Food web subsidies; Nutrient stoichiometry; Resource quality; Spiders; Stable Isotopes

11 more images…

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Merkley, S. (2016). Resource Quantity and Quality in Cross-Ecosystem Food Web Subsidies. (Thesis). University of California – Riverside. Retrieved from http://www.escholarship.org/uc/item/6gc9g4df

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Merkley, Steven. “Resource Quantity and Quality in Cross-Ecosystem Food Web Subsidies.” 2016. Thesis, University of California – Riverside. Accessed July 23, 2019. http://www.escholarship.org/uc/item/6gc9g4df.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Merkley, Steven. “Resource Quantity and Quality in Cross-Ecosystem Food Web Subsidies.” 2016. Web. 23 Jul 2019.

Vancouver:

Merkley S. Resource Quantity and Quality in Cross-Ecosystem Food Web Subsidies. [Internet] [Thesis]. University of California – Riverside; 2016. [cited 2019 Jul 23]. Available from: http://www.escholarship.org/uc/item/6gc9g4df.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Merkley S. Resource Quantity and Quality in Cross-Ecosystem Food Web Subsidies. [Thesis]. University of California – Riverside; 2016. Available from: http://www.escholarship.org/uc/item/6gc9g4df

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of California – Riverside

22. Tobin, Jennifer Marie. Selenium Partitioning and Food-Chain Transfer at the Salton Sea.

Degree: Environmental Sciences, 2011, University of California – Riverside

URL: http://www.escholarship.org/uc/item/40r8t899

► With the habitat at the Salton Sea, California, expected to decline to conditions unsuitable for wildlife as the Sea shrinks in coming years, efforts are… (more)

Subjects/Keywords: Environmental science; Food web; Modeling; Salton Sea; Selenium

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Tobin, J. M. (2011). Selenium Partitioning and Food-Chain Transfer at the Salton Sea. (Thesis). University of California – Riverside. Retrieved from http://www.escholarship.org/uc/item/40r8t899

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Tobin, Jennifer Marie. “Selenium Partitioning and Food-Chain Transfer at the Salton Sea.” 2011. Thesis, University of California – Riverside. Accessed July 23, 2019. http://www.escholarship.org/uc/item/40r8t899.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Tobin, Jennifer Marie. “Selenium Partitioning and Food-Chain Transfer at the Salton Sea.” 2011. Web. 23 Jul 2019.

Vancouver:

Tobin JM. Selenium Partitioning and Food-Chain Transfer at the Salton Sea. [Internet] [Thesis]. University of California – Riverside; 2011. [cited 2019 Jul 23]. Available from: http://www.escholarship.org/uc/item/40r8t899.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Tobin JM. Selenium Partitioning and Food-Chain Transfer at the Salton Sea. [Thesis]. University of California – Riverside; 2011. Available from: http://www.escholarship.org/uc/item/40r8t899

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Victoria

23. Olson, Angeleen. Seagrass meadows as seascape nurseries for rockfish (Sebastes spp.).

Degree: Department of Biology, 2017, University of Victoria

URL: http://hdl.handle.net/1828/7943

► Nearshore marine habitats provide critical nursery grounds for juvenile fishes, but their functional role requires the consideration of the impacts of spatial connectivity. This thesis… (more)

▼ Nearshore marine habitats provide critical nursery grounds for juvenile fishes, but their functional role requires the consideration of the impacts of spatial connectivity. This thesis examines nursery function in seagrass habitats through a marine landscape (“seascape”) lens, focusing on the spatial interactions between habitats, and their effects on population and trophic dynamics associated with nursery function to rockfish (Sebastes spp.). In the temperate Pacific Ocean, rockfish depend on nearshore habitats after an open-ocean, pelagic larval period. I investigate the role of two important spatial attributes, habitat adjacency and complexity, on rockfish recruitment to seagrass meadows, and the provision of subsidies to rockfish food webs. To test for these effects, underwater visual surveys and collections of young-of-the-year (YOY) Copper Rockfish recruitment (summer 2015) were compared across adjacent seagrass, kelp forest, and sand habitats within a nearshore seascape on the Central Coast of British Columbia. Recruitment was positively influenced by the structural complexity of seagrass and adjacency to kelp forest sites, however a negative interaction between seagrass complexity and kelp forest adjacency suggests that predation modifies Copper Rockfish recruitment densities. In addition, using δ13C and δ15N isotopes to determine the basal contributions to seagrass food webs, kelp-derived nutrients were on average 47% ± 0.4 of YOY Copper Rockfish diets, which was 3x and 67x greater than the contribution of autochthonous seagrass production (seagrass epiphyte and seagrass blades, respectively). YOY Copper Rockfish diets in seagrass adjacent to sand habitats had the greatest amounts of kelp-derived nutrients and harpacticoid copepods, and concurrently had lower body condition compared to rockfish in the seagrass kelp edges and interior, feeding predominantly on seagrass epiphytes and calanoid copepods. This thesis provides further evidence that temperate seagrasses are nurseries for rockfish and that spatial elements of seascapes, including connectivity via habitat adjacency and variability in habitat structure, alter the recruitment and diets of rockfish in seagrass habitats. These seascape nursery effects are important considerations for marine planning, especially given the global decline of nearshore habitats. Advisors/Committee Members: Juanes, Francis (supervisor), Hessing-Lewis, Margot (supervisor).

Subjects/Keywords: seagrass; nursery; rockfish; food web; seascape; stable isotope; recruitment; connectivity

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Olson, A. (2017). Seagrass meadows as seascape nurseries for rockfish (Sebastes spp.). (Masters Thesis). University of Victoria. Retrieved from http://hdl.handle.net/1828/7943

Chicago Manual of Style (16^th Edition):

Olson, Angeleen. “Seagrass meadows as seascape nurseries for rockfish (Sebastes spp.).” 2017. Masters Thesis, University of Victoria. Accessed July 23, 2019. http://hdl.handle.net/1828/7943.

MLA Handbook (7^th Edition):

Olson, Angeleen. “Seagrass meadows as seascape nurseries for rockfish (Sebastes spp.).” 2017. Web. 23 Jul 2019.

Vancouver:

Olson A. Seagrass meadows as seascape nurseries for rockfish (Sebastes spp.). [Internet] [Masters thesis]. University of Victoria; 2017. [cited 2019 Jul 23]. Available from: http://hdl.handle.net/1828/7943.

Council of Science Editors:

Olson A. Seagrass meadows as seascape nurseries for rockfish (Sebastes spp.). [Masters Thesis]. University of Victoria; 2017. Available from: http://hdl.handle.net/1828/7943

University of Illinois – Chicago

24. Mores, Robin M. Beyond the Binary Web: Using Real-Time PCR to Quantify the Structure of a Spider-Dominated Food Web.

Degree: 2016, University of Illinois – Chicago

URL: http://hdl.handle.net/10027/20939

► Historically, food webs have been depicted as networks of binary interactions that show qualitative structure. Incorporating “weighted” data details interaction strengths and addresses a critique… (more)

Subjects/Keywords: food web; real-time PCR; spiders; predation; forest floor; arthropod community

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Mores, R. M. (2016). Beyond the Binary Web: Using Real-Time PCR to Quantify the Structure of a Spider-Dominated Food Web. (Thesis). University of Illinois – Chicago. Retrieved from http://hdl.handle.net/10027/20939

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Mores, Robin M. “Beyond the Binary Web: Using Real-Time PCR to Quantify the Structure of a Spider-Dominated Food Web.” 2016. Thesis, University of Illinois – Chicago. Accessed July 23, 2019. http://hdl.handle.net/10027/20939.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Mores, Robin M. “Beyond the Binary Web: Using Real-Time PCR to Quantify the Structure of a Spider-Dominated Food Web.” 2016. Web. 23 Jul 2019.

Vancouver:

Mores RM. Beyond the Binary Web: Using Real-Time PCR to Quantify the Structure of a Spider-Dominated Food Web. [Internet] [Thesis]. University of Illinois – Chicago; 2016. [cited 2019 Jul 23]. Available from: http://hdl.handle.net/10027/20939.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Mores RM. Beyond the Binary Web: Using Real-Time PCR to Quantify the Structure of a Spider-Dominated Food Web. [Thesis]. University of Illinois – Chicago; 2016. Available from: http://hdl.handle.net/10027/20939

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Washington

25. Moriarty, Pamela. Quantifying Predator-Prey Interactions: Methods, Challenges, and Applications.

Degree: PhD, 2018, University of Washington

URL: http://hdl.handle.net/1773/42357

► Knowledge of predator-prey interactions is vital in many subfields of ecology, including food web ecology, behavioral ecology, and population ecology. Information on predator-prey interactions is… (more)

Subjects/Keywords: food web; mixture model; stomach contents; Ecology; Biostatistics; Fisheries

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Moriarty, P. (2018). Quantifying Predator-Prey Interactions: Methods, Challenges, and Applications. (Doctoral Dissertation). University of Washington. Retrieved from http://hdl.handle.net/1773/42357

Chicago Manual of Style (16^th Edition):

Moriarty, Pamela. “Quantifying Predator-Prey Interactions: Methods, Challenges, and Applications.” 2018. Doctoral Dissertation, University of Washington. Accessed July 23, 2019. http://hdl.handle.net/1773/42357.

MLA Handbook (7^th Edition):

Moriarty, Pamela. “Quantifying Predator-Prey Interactions: Methods, Challenges, and Applications.” 2018. Web. 23 Jul 2019.

Vancouver:

Moriarty P. Quantifying Predator-Prey Interactions: Methods, Challenges, and Applications. [Internet] [Doctoral dissertation]. University of Washington; 2018. [cited 2019 Jul 23]. Available from: http://hdl.handle.net/1773/42357.

Council of Science Editors:

Moriarty P. Quantifying Predator-Prey Interactions: Methods, Challenges, and Applications. [Doctoral Dissertation]. University of Washington; 2018. Available from: http://hdl.handle.net/1773/42357

Duke University

26. Koltz, Amanda M. The Changing Structure and Function of Arthropod Food Webs in a Warming Arctic .

Degree: 2015, Duke University

URL: http://hdl.handle.net/10161/9878

► Environmental changes, such as climate change, can have differential effects on species, with important consequences for community structure and ultimately, for ecosystem functioning. In… (more)

▼ Environmental changes, such as climate change, can have differential effects on species, with important consequences for community structure and ultimately, for ecosystem functioning. In the Arctic, where ecosystems are experiencing warming at twice the rate as elsewhere, these effects are expected to be particularly strong. A proper characterization of the link between warming and biotic interactions in these particular communities is of global importance because the tundra's permafrost stores a vast amount of carbon that could be released through decomposition as greenhouse gases and alter the global rate of climate change. In this dissertation, I examine how arthropod communities are responding to warming in the Arctic and how these responses might be affecting ecosystem functioning. I first address the question of whether and how long-term changes in climate are affecting individual groups and overall community structure in a high-arctic arthropod food web. I find that increasingly warm springs and summers between 1996-2011 differentially affected some arthropod groups and that this led to major changes in the relative abundances of different trophic groups within the arthropod community. Specifically, spring and summer warming are associated with relatively more herbivores and parasitoids and fewer detritivores within the community. These changes are particularly pronounced in heath sites, suggesting that arthropod communities in dry habitats are more responsive to climate change than those in wet habitats. I also show that herbivores and parasitoids are sensitive to conditions at subzero temperatures, even during periods of diapause, and that all trophic groups benefit from a longer transition period between summer and winter. These results suggest that the projected winter and springtime warming in Greenland may have unexpected consequences for northern arthropod communities. Moreover, the relative increase in herbivores and loss of detritivores may be changing the influence of the arthropod community over key ecosystem processes such as decomposition, nutrient cycling, and primary productivity in the tundra. Predator-induced trophic cascades have been shown to impact both community structure and ecosystem processes, yet it is unclear how climate change may exacerbate or dampen predator effects on ecosystems. In the second chapter of my dissertation, I investigate the role of one of the dominant tundra predators within the arctic ecosystem, wolf spiders, and how their impact might be changing with warming. Using results from a two-year-long field experiment, I test the influence of wolf spider density over the structure of soil microarthropod communities and decomposition rates under both ambient and artificially warmed temperatures. I find that predator effects on soil microarthropods change in response to warming and that these changes translate into context-specific indirect effects of predators on decomposition. Specifically, while high densities of wolf spiders lead to faster… Advisors/Committee Members: Wright, Justin (advisor).

Subjects/Keywords: Ecology; arctic; arthropod; community ecology; decomposition; food web; spider

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Koltz, A. M. (2015). The Changing Structure and Function of Arthropod Food Webs in a Warming Arctic . (Thesis). Duke University. Retrieved from http://hdl.handle.net/10161/9878

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Koltz, Amanda M. “The Changing Structure and Function of Arthropod Food Webs in a Warming Arctic .” 2015. Thesis, Duke University. Accessed July 23, 2019. http://hdl.handle.net/10161/9878.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Koltz, Amanda M. “The Changing Structure and Function of Arthropod Food Webs in a Warming Arctic .” 2015. Web. 23 Jul 2019.

Vancouver:

Koltz AM. The Changing Structure and Function of Arthropod Food Webs in a Warming Arctic . [Internet] [Thesis]. Duke University; 2015. [cited 2019 Jul 23]. Available from: http://hdl.handle.net/10161/9878.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Koltz AM. The Changing Structure and Function of Arthropod Food Webs in a Warming Arctic . [Thesis]. Duke University; 2015. Available from: http://hdl.handle.net/10161/9878

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Universidade Nova

27. Ye, Zhelu. A Web-Based geographical information system prototype on Portuguese traditional food products.

Degree: 2009, Universidade Nova

URL: http://www.rcaap.pt/detail.jsp?id=oai:run.unl.pt:10362/2318

►

Dissertation submitted in partial fulfilment of the requirements for the Degree of Master of Science in Geospatial Technologies

Portuguese traditional food products use certification labels… (more)

Subjects/Keywords: Open source software; Open specifications; Traditional food products; Web-based GIS

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Ye, Z. (2009). A Web-Based geographical information system prototype on Portuguese traditional food products. (Thesis). Universidade Nova. Retrieved from http://www.rcaap.pt/detail.jsp?id=oai:run.unl.pt:10362/2318

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Ye, Zhelu. “A Web-Based geographical information system prototype on Portuguese traditional food products.” 2009. Thesis, Universidade Nova. Accessed July 23, 2019. http://www.rcaap.pt/detail.jsp?id=oai:run.unl.pt:10362/2318.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Ye, Zhelu. “A Web-Based geographical information system prototype on Portuguese traditional food products.” 2009. Web. 23 Jul 2019.

Vancouver:

Ye Z. A Web-Based geographical information system prototype on Portuguese traditional food products. [Internet] [Thesis]. Universidade Nova; 2009. [cited 2019 Jul 23]. Available from: http://www.rcaap.pt/detail.jsp?id=oai:run.unl.pt:10362/2318.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Ye Z. A Web-Based geographical information system prototype on Portuguese traditional food products. [Thesis]. Universidade Nova; 2009. Available from: http://www.rcaap.pt/detail.jsp?id=oai:run.unl.pt:10362/2318

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Waikato

28. Binks, Nigel. Assessing New Zealand's spider (Araneae) fauna, using DNA barcoding .

Degree: 2018, University of Waikato

URL: http://hdl.handle.net/10289/11963

► The ability to accurately monitor biological diversity is the foundation to most ecological research. However, the morphological identification of spiders, as with many arthropod taxa,… (more)

▼ The ability to accurately monitor biological diversity is the foundation to most ecological research. However, the morphological identification of spiders, as with many arthropod taxa, is often complicated by phenotypic plasticity and sexual dimorphism. New Zealand’s spider fauna is highly endemic (97% of known species), consisting of an estimated 2,000 species. Given such high diversity, it is critical to seek cost-effective measures of assessing species diversity and distributions, and for the identification of cryptic unidentified taxa. The aim of my research was to determine whether the described spider fauna can be effectively delineated from unidentified taxa using DNA barcoding. Overall, I establish a molecular inventory for 100 described species and 71 additional unidentified species of spiders found in New Zealand. Using barcoding I determined there to be 59 native described species and classify 66 of the unidentified species as native, leaving 45 species which were recognised as having international distributions by taxonomic descriptions and/or from comparative DNA sequences from the Barcode of Life Datasystem (www.boldsystems.org). The repository of species presented here represent native species pertaining to 26 families and cosmopolitan species from 17 families of which species from the Araneidae, Linyphiidae and Theridiidae families are the most diversly represented in this study. This foundational inventory was used to assess the presence of spider species around the marginal habitats of 5 Waikato study lakes (Puketi, Rotoiti, Kohahuake, Waiwhakareke and Koraha), in relation to community assemblage variation across lakes, habitat (shoreline vs. pasture) and sampling method. The combined morphological and molecular approach to identification used here has demonstrated community composition assessments of spiders are viable. Furthermore, the study of these community assemblages revealed a greater diversity of habitat specialists among shoreline samples from lakes Kohahuake, Koraha and Waiwhakareke where greater vegetative heterogeneity along the shoreline provides a greater range of niches for spiders to occupy. This compiled species inventory indicates that New Zealand’s diverse Araneae fauna has been infiltrated by species with international distributions. Further, not all species are easily recognisable due to dissimilarities in their morphological appearance, or because they remain to be genetically identified, and therefore the extent of non-native species infiltration into New Zealand ecosystems is unclear. This lack of knowledge highlights an important area for future biosurveillance work. Lake ecosystems were selected for this study because a variety of spider species prey upon adult aquatic invertebrates as they emerge from the aquatic realm and into the terrestrial. Methods which provide complementary data for ranking lake ecosystems is a priority for biodiversity management in the Waikato region due to habitat fragmentation primarily associated with deforestation and subsequent… Advisors/Committee Members: Collier, Kevin J (advisor), Hogg, Ian D (advisor).

Subjects/Keywords: Biodiversity; spider; conservation; lakes; waikato; food-web; community dynamics; barcoding; COI

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Binks, N. (2018). Assessing New Zealand's spider (Araneae) fauna, using DNA barcoding . (Masters Thesis). University of Waikato. Retrieved from http://hdl.handle.net/10289/11963

Chicago Manual of Style (16^th Edition):

Binks, Nigel. “Assessing New Zealand's spider (Araneae) fauna, using DNA barcoding .” 2018. Masters Thesis, University of Waikato. Accessed July 23, 2019. http://hdl.handle.net/10289/11963.

MLA Handbook (7^th Edition):

Binks, Nigel. “Assessing New Zealand's spider (Araneae) fauna, using DNA barcoding .” 2018. Web. 23 Jul 2019.

Vancouver:

Binks N. Assessing New Zealand's spider (Araneae) fauna, using DNA barcoding . [Internet] [Masters thesis]. University of Waikato; 2018. [cited 2019 Jul 23]. Available from: http://hdl.handle.net/10289/11963.

Council of Science Editors:

Binks N. Assessing New Zealand's spider (Araneae) fauna, using DNA barcoding . [Masters Thesis]. University of Waikato; 2018. Available from: http://hdl.handle.net/10289/11963

University of Tasmania

29. Watson, A. The impact of 170 years of flow regulation on processes and patterns in an eastern Tasmanian river system.

Degree: 2011, University of Tasmania

URL: https://eprints.utas.edu.au/12517/4/2Watson.pdf

► The flow regime of Tooms River, a tributary of the unregulated Macquarie River in eastern Tasmania, was modified in 1840 by a shallow dam in… (more)

▼ The flow regime of Tooms River, a tributary of the unregulated Macquarie River in eastern Tasmania, was modified in 1840 by a shallow dam in its upper reaches, resulting in reversed seasonality of high and low flows: a classic, long-term example of a river subjected to “anti-drought”, but without the confounding thermal effects of impoundment stratification. I found surprisingly large differences between sites on this regulated branch and sites on the adjacent unregulated branch of the Macquarie, which persisted for 8 km downstream despite tributary inflows. This 2-year comparative study coincided with a prolonged supra-seasonal drought, which enabled examination of the effects of reduced stream flow on both regulated and unregulated examples of confined rivers in a naturally variable climatic regime. The regulated sites remained distinct from the unregulated sites, in terms of riparian litter fall, biofilm abundance and macro-invertebrate diversity. This is one of very few studies of the long-term effects of flow regulation (e.g. see Kondolf and Batalla 2005; Sheldon and Thoms 2006b), and differs from the majority of regulated river studies in that the effects of regulation of Tooms River are not confounded by land use practises or thermal stratification of the reservoir. However, this impoundment is typical of small irrigation impoundments in Mediterranean and semi-arid climate zones. The ecological consequences of drought and “antidrought” in a region with a naturally variable flow regime may inform management of biodiversity in other regulated rivers in similar climate zones. Human population increases and climate change pressure on water supplies are likely to increase the demand for many more dams of this size and type of flow alteration (Benstead et al. 1999). The determination of the long-term effects of flow regulation is essential, so that future decisions on water allocations can be based on better knowledge of the impact on downstream ecosystem services. Prolonged regulation of the flow regime of Tooms River has had major effects. Regulation has not only reversed the seasonality of flow, but has also dramatically reduced flow variability, resulting in contraction of the stream channel immediately downstream of the dam, and the establishment of mature eucalypts close to the channel, in contrast to the shrubby riparian vegetation maintained by the variable flow regime of the Macquarie River. The timing of allochthonous litter inputs to the benthos was altered, with peak litterfall delayed until irrigation demand fell at the end of summer. In addition, there was reduced lateral connectivity, with movement of leaf litter between the riparian zone and the benthos dependent on overland flow. As predicted by other studies, biofilms were more abundant in the regulated river, but the closed canopy immediately downstream of the dam did not suppress autochthonous productivity, against expectations. Chlorophyll a analyses indicated an autotrophic system, dominated by cyanobacteria and diatoms, in contrast to…

Subjects/Keywords: flow regulation; irrigation; drought; macroinvertebrates; biofilms; food web

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Watson, A. (2011). The impact of 170 years of flow regulation on processes and patterns in an eastern Tasmanian river system. (Thesis). University of Tasmania. Retrieved from https://eprints.utas.edu.au/12517/4/2Watson.pdf

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Watson, A. “The impact of 170 years of flow regulation on processes and patterns in an eastern Tasmanian river system.” 2011. Thesis, University of Tasmania. Accessed July 23, 2019. https://eprints.utas.edu.au/12517/4/2Watson.pdf.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Watson, A. “The impact of 170 years of flow regulation on processes and patterns in an eastern Tasmanian river system.” 2011. Web. 23 Jul 2019.

Vancouver:

Watson A. The impact of 170 years of flow regulation on processes and patterns in an eastern Tasmanian river system. [Internet] [Thesis]. University of Tasmania; 2011. [cited 2019 Jul 23]. Available from: https://eprints.utas.edu.au/12517/4/2Watson.pdf.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Watson A. The impact of 170 years of flow regulation on processes and patterns in an eastern Tasmanian river system. [Thesis]. University of Tasmania; 2011. Available from: https://eprints.utas.edu.au/12517/4/2Watson.pdf

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Cornell University

30. Lepak, Jesse. Addressing anthropogenic and environmental perturbations in aquatic systems .

Degree: 2008, Cornell University

URL: http://hdl.handle.net/1813/10136

► The overall goal of the set of experiments described in this dissertation was to better understand the influence of a variety of perturbations in aquatic… (more)

Subjects/Keywords: food web; bioenergetics; thiaminase; early mortality syndrome; perturbation; mercury

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Lepak, J. (2008). Addressing anthropogenic and environmental perturbations in aquatic systems . (Thesis). Cornell University. Retrieved from http://hdl.handle.net/1813/10136

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Lepak, Jesse. “Addressing anthropogenic and environmental perturbations in aquatic systems .” 2008. Thesis, Cornell University. Accessed July 23, 2019. http://hdl.handle.net/1813/10136.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Lepak, Jesse. “Addressing anthropogenic and environmental perturbations in aquatic systems .” 2008. Web. 23 Jul 2019.

Vancouver:

Lepak J. Addressing anthropogenic and environmental perturbations in aquatic systems . [Internet] [Thesis]. Cornell University; 2008. [cited 2019 Jul 23]. Available from: http://hdl.handle.net/1813/10136.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Lepak J. Addressing anthropogenic and environmental perturbations in aquatic systems . [Thesis]. Cornell University; 2008. Available from: http://hdl.handle.net/1813/10136

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Open Access Theses and Dissertations