subject:(mark recapture)

Cornell University

1. Kapetanakos, Yula. Assessing The Demography And Conservation Genetics Of Asian Vultures Using Non-Invasive Molecular Techniques.

Degree: PhD, Evolutionary Biology, 2014, Cornell University

URL: http://hdl.handle.net/1813/38950

► Asian vultures are undergoing widespread population declines and several species are listed as critically endangered. In spite of this conservation crisis, there is little information… (more)

▼ Asian vultures are undergoing widespread population declines and several species are listed as critically endangered. In spite of this conservation crisis, there is little information on the demography and genetics of any species. This is largely because vultures are very difficult to study using conventional methods: individuals breed irregularly, non-breeders are itinerant, and all vultures can travel hundreds of kilometers to forage. To overcome the challenges of studying vultures using traditional methods, I obtained genotypes derived from non-invasively collected feather samples as an alternative means to 'capture' individual vultures for demographic and genetic analyses. I analyzed samples from three species in Southeast Asia, Gyps bengalensis, G. tenuirostris, and Sarcogyps calvus, whose populations have been greatly reduced and geographically restricted in Cambodia. I also collected feathers from two species in Kazakhstan, Gyps himalayensis and Gyps fulvus. In my first dissertation chapter, I described a restriction endonuclease digest assay that distinguishes the visually similar feathers of the five vulture species, and I described a panel of 8 polymorphic microsatellite loci that I used for subsequent analyses. In my second chapter, I analyzed microsatellite loci and mitochondrial DNA to assess the genetic diversity of the three species found in Cambodia. I found that G. bengalensis, despite having a small population size, showed relatively high levels of genetic diversity, whereas G. tenuirostris and S. calvus had lower levels of genetic variation. In addition, I compared the genetic structuring of G. bengalensis in Cambodia with samples collected from individuals in Pakistan in 2000/01 and found that the two populations have significant levels of population differentiation. For my third chapter, I used DNA from feathers for genetic capture-mark-recapture analyses for the three vulture species in Cambodia and for G. himalayensis G. fulvus in Kazakhstan. I used closed capture models to generate abundance estimates for G. bengalensis and G. himalayensis but lacked the requisite statistical power for the remaining three species due to low resampling rates. Overall, my research identified aspects of vulture biology previously not studied and provides the methods that can be used to further investigate the biology of these threatened avian scavengers. Advisors/Committee Members: Lovette, John I (chair), Cooch, Evan G. (committee member), Winkler, David Ward (committee member), Clum, Nancy Joan (committee member), Katzner, Todd (committee member).

Subjects/Keywords: vulture; mark-recapture; conservation genetics

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Kapetanakos, Y. (2014). Assessing The Demography And Conservation Genetics Of Asian Vultures Using Non-Invasive Molecular Techniques. (Doctoral Dissertation). Cornell University. Retrieved from http://hdl.handle.net/1813/38950

Chicago Manual of Style (16^th Edition):

Kapetanakos, Yula. “Assessing The Demography And Conservation Genetics Of Asian Vultures Using Non-Invasive Molecular Techniques.” 2014. Doctoral Dissertation, Cornell University. Accessed March 02, 2021. http://hdl.handle.net/1813/38950.

MLA Handbook (7^th Edition):

Kapetanakos, Yula. “Assessing The Demography And Conservation Genetics Of Asian Vultures Using Non-Invasive Molecular Techniques.” 2014. Web. 02 Mar 2021.

Vancouver:

Kapetanakos Y. Assessing The Demography And Conservation Genetics Of Asian Vultures Using Non-Invasive Molecular Techniques. [Internet] [Doctoral dissertation]. Cornell University; 2014. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/1813/38950.

Council of Science Editors:

Kapetanakos Y. Assessing The Demography And Conservation Genetics Of Asian Vultures Using Non-Invasive Molecular Techniques. [Doctoral Dissertation]. Cornell University; 2014. Available from: http://hdl.handle.net/1813/38950

University of Oulu

2. Lampila, S. (Satu). The causes and consequences of population declines of two boreal forest species:the case of the willow tit (Parus montanus) and the Siberian flying squirrel (Pteromys volans).

Degree: 2009, University of Oulu

URL: http://urn.fi/urn:isbn:9789514290718

► Abstract I used individual-based capture-mark-recapture data and genetic markers to gain understanding of the demographic and genetic processes operating in small and declining populations of… (more)

▼ Abstract I used individual-based capture-mark-recapture data and genetic markers to gain understanding of the demographic and genetic processes operating in small and declining populations of two different species, the willow tit Parus montanus and the Siberian flying squirrel Pteromys volans. Both species have declined in Finland and the flying squirrel has been considered to be vulnerable. The willow tit study was conducted in northern Finland, near city of Oulu. The population size in the studied area has on average been stable during the past decade. Adult survival in the willow tit was high and fairly stable and was positively correlated with recruitment. Adult survival has been the most influential vital rate to the population growth rate. Local recruitment and immigration have high variation, inducing variation in the population growth rate. Female willow tits use extrapair copulations to maximise offspring heterozygosity. Heterozygous individuals are supposedly of higher quality than homozygous ones. I found weak negative association between individual homozygosity and recruitment probability. The flying squirrel populations have declined during the past ten years. Furthermore, adult survival has declined in one of the populations, most likely due to habitat loss and fragmentation that decrease the adult survival and limit dispersal. The flying squirrel populations were studied in western Finland. The flying squirrel densities in the studied areas are the highest in Finland and therefore these areas have been regarded as favourable for the flying squirrel. My results question this view. Microsatellite analyses strengthen the view of populations doing poorly, because the heterozygosities in all the populations and particularly in the most isolated one were rather low. High FST values indicate low dispersal even between adjacent populations. Following work should investigate the spatial variation in individual performance and the dispersal processes in these populations. For the flying squirrel it is vital to determine the size and quality of the patches that can support flying squirrels and the ones that apparently can not. Present estimates of survival and genetic diversity can be used to reconstruct a meaningful PVA and projections for these populations.

Subjects/Keywords: demography; local recruitment; mark-recapture; microsatellite; survival

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Lampila, S. (. (2009). The causes and consequences of population declines of two boreal forest species:the case of the willow tit (Parus montanus) and the Siberian flying squirrel (Pteromys volans). (Doctoral Dissertation). University of Oulu. Retrieved from http://urn.fi/urn:isbn:9789514290718

Chicago Manual of Style (16^th Edition):

Lampila, S (Satu). “The causes and consequences of population declines of two boreal forest species:the case of the willow tit (Parus montanus) and the Siberian flying squirrel (Pteromys volans).” 2009. Doctoral Dissertation, University of Oulu. Accessed March 02, 2021. http://urn.fi/urn:isbn:9789514290718.

MLA Handbook (7^th Edition):

Lampila, S (Satu). “The causes and consequences of population declines of two boreal forest species:the case of the willow tit (Parus montanus) and the Siberian flying squirrel (Pteromys volans).” 2009. Web. 02 Mar 2021.

Vancouver:

Lampila S(. The causes and consequences of population declines of two boreal forest species:the case of the willow tit (Parus montanus) and the Siberian flying squirrel (Pteromys volans). [Internet] [Doctoral dissertation]. University of Oulu; 2009. [cited 2021 Mar 02]. Available from: http://urn.fi/urn:isbn:9789514290718.

Council of Science Editors:

Lampila S(. The causes and consequences of population declines of two boreal forest species:the case of the willow tit (Parus montanus) and the Siberian flying squirrel (Pteromys volans). [Doctoral Dissertation]. University of Oulu; 2009. Available from: http://urn.fi/urn:isbn:9789514290718

University of Montana

3. Addis, Brett Rebekah. CAUSES OF VARIATION IN DISPERSAL DISTANCE IN THE STREAM SALAMANDER GYRINOPHILUS PORPHYRITICUS.

Degree: PhD, 2019, University of Montana

URL: https://scholarworks.umt.edu/etd/11339

► Dispersal is expected to evolve as an adaptive mechanism to optimize individual fitness across the landscape. While there is evidence that active dispersers base… (more)

▼ Dispersal is expected to evolve as an adaptive mechanism to optimize individual fitness across the landscape. While there is evidence that active dispersers base emigration decisions (i.e., stay vs. leave) on perceived costs associated with environmental variation and inbreeding, it is less well understood how and whether these same factors influence dispersal distances– a more comprehensive measure of dispersal. More generally, the challenge of quantifying dispersal in the field has resulted in a paucity of data on the fate and fitness of dispersing individuals, leaving us with little understanding of the factors influencing individual variation in dispersal distance. In my dissertation, I use a combination of morphological, performance, demographic, and genetic data to understand the selective forces shaping variation in dispersal distances in the stream salamander Gyrinophilus porphyriticus. I found that phenotypic attributes that facilitate long-distance dispersal restrict other locomotor performances. Specifically, salamanders that dispersed farther in the field had longer forelimbs, but swam at slower velocities under experimental conditions. These results suggest that salamanders disperse by walking, and that longer limbs may lower the cost of transport by increasing stride length. Longer limbs also impose more drag, potentially explaining the reduced swimming performance of long-distance dispersers. These results are novel in demonstrating a trade-off associated with variation in dispersal distance, and, more broadly, suggest that this and other trade-offs associated with continuous variation in dispersal distance may constrain dispersal evolution. I show that large-scale, long-term environmental variation – reflected in survival probabilities of G. porphyriticus – better predicts dispersal distances than current, local variation in habitat quality. These results provide the first empirical support for early theory that treated dispersal as an innate, ‘fixed’ quality of individuals that evolves in response to a history of spatiotemporal environmental variability at large spatial scales. Importantly, these results challenge the current paradigm that most dispersal is conditional and based on gathering information about local habitat quality. Based on these findings, I develop a conceptual model of dispersal evolution where informed strategies explain short-distance dispersal, and fixed strategies explain long-distance dispersal. I provide rare empirical support for the basic prediction that inbreeding risk decreases with dispersal distance. Further, I show that the degree to which dispersal functions to reduce inbreeding risk in G. prophyriticus is mediated by other environmental conditions influencing dispersal distance. Specifically, dispersal effectively reduced inbreeding risk in downstream reaches where dispersal distances were greater. In contrast, dispersal did not reduce inbreeding risk in upstream reaches, where dispersal distances were shorter. These results suggest…

Subjects/Keywords: amphibian; capture-mark-recapture; dispersal; inbreeding; tradeoff

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Addis, B. R. (2019). CAUSES OF VARIATION IN DISPERSAL DISTANCE IN THE STREAM SALAMANDER GYRINOPHILUS PORPHYRITICUS. (Doctoral Dissertation). University of Montana. Retrieved from https://scholarworks.umt.edu/etd/11339

Chicago Manual of Style (16^th Edition):

Addis, Brett Rebekah. “CAUSES OF VARIATION IN DISPERSAL DISTANCE IN THE STREAM SALAMANDER GYRINOPHILUS PORPHYRITICUS.” 2019. Doctoral Dissertation, University of Montana. Accessed March 02, 2021. https://scholarworks.umt.edu/etd/11339.

MLA Handbook (7^th Edition):

Addis, Brett Rebekah. “CAUSES OF VARIATION IN DISPERSAL DISTANCE IN THE STREAM SALAMANDER GYRINOPHILUS PORPHYRITICUS.” 2019. Web. 02 Mar 2021.

Vancouver:

Addis BR. CAUSES OF VARIATION IN DISPERSAL DISTANCE IN THE STREAM SALAMANDER GYRINOPHILUS PORPHYRITICUS. [Internet] [Doctoral dissertation]. University of Montana; 2019. [cited 2021 Mar 02]. Available from: https://scholarworks.umt.edu/etd/11339.

Council of Science Editors:

Addis BR. CAUSES OF VARIATION IN DISPERSAL DISTANCE IN THE STREAM SALAMANDER GYRINOPHILUS PORPHYRITICUS. [Doctoral Dissertation]. University of Montana; 2019. Available from: https://scholarworks.umt.edu/etd/11339

University of New South Wales

4. Ganendran, Lucia-Marie. Climatic and Oceanographic Effects on Survival of Little Penguins in Southeastern Australia.

Degree: Physical, Environmental & Mathematical Sciences, 2017, University of New South Wales

URL: http://handle.unsw.edu.au/1959.4/59039 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:48344/SOURCE02?view=true

► Climate change can impact on the survival of seabirds. While many studies have investigated the influences of climatic and oceanographic variables on seabird breeding, fewer… (more)

▼ Climate change can impact on the survival of seabirds. While many studies have investigated the influences of climatic and oceanographic variables on seabird breeding, fewer have been able to capture the processes affecting survival. In this study, I carried out a mark-recapture analysis on a 46-year penguin dataset to study the effects of some climatic and oceanographic variables on the survival of little penguins Eudyptula minor in southeastern Australia. A priori knowledge of the birds' annual cycle and patterns of movement informed my selection of meaningful and biologically sensible variables.Two age classes of penguins were considered, based on their differing patterns of movement: first-year birds and adult birds in their second and subsequent years of life.The climatic and oceanographic variables considered in this study were wind strength, sea-surface temperature, east-west sea temperature gradient, air temperature, rainfall, humidity and chlorophyll a concentration. Climatic covariates which affected adult penguins on land had a direct impact on their survival, most likely via physiological stresses caused by climatic extremes. Oceanographic covariates had contrasting effects on first-year and adult penguin survival. Positive effects were most likely due to the movement of nutrients and associated prey into foraging areas as a result of favourable marine conditions, while negative effects were most likely due to a decrease in prey abundance, or physical factors such as changes in sea-surface temperature or turbulent seas, which affected prey availability or foraging behaviour.The survival probabilities of first-year and adult birds were most strongly associated with different covariates, and at different times during the birds' annual cycle. The effects were not always immediate, with lagged covariates found to affect survival for both age classes. In a broader context, the effects of any single covariate on the distribution and demography of penguins may be correlated with, or masked by, a range of environmental conditions and interactions between covariates in the marine ecosystem. My research offers new insights into processes which affect penguin survival, and ultimately population security. The development of appropriate management and adaptation actions will further contribute to the conservation of seabirds. Advisors/Committee Members: Sidhu, Leesa, Physical, Environmental & Mathematical Sciences, UNSW Canberra, UNSW, Dann, Peter, Penguin Foundation, Phillip Island Nature Parks, Phillip Island, Victoria, Sidhu, Harvinder, Physical, Environmental & Mathematical Sciences, UNSW Canberra, UNSW.

Subjects/Keywords: climate change; little penguins; survival; mark recapture

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Ganendran, L. (2017). Climatic and Oceanographic Effects on Survival of Little Penguins in Southeastern Australia. (Doctoral Dissertation). University of New South Wales. Retrieved from http://handle.unsw.edu.au/1959.4/59039 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:48344/SOURCE02?view=true

Chicago Manual of Style (16^th Edition):

Ganendran, Lucia-Marie. “Climatic and Oceanographic Effects on Survival of Little Penguins in Southeastern Australia.” 2017. Doctoral Dissertation, University of New South Wales. Accessed March 02, 2021. http://handle.unsw.edu.au/1959.4/59039 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:48344/SOURCE02?view=true.

MLA Handbook (7^th Edition):

Ganendran, Lucia-Marie. “Climatic and Oceanographic Effects on Survival of Little Penguins in Southeastern Australia.” 2017. Web. 02 Mar 2021.

Vancouver:

Ganendran L. Climatic and Oceanographic Effects on Survival of Little Penguins in Southeastern Australia. [Internet] [Doctoral dissertation]. University of New South Wales; 2017. [cited 2021 Mar 02]. Available from: http://handle.unsw.edu.au/1959.4/59039 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:48344/SOURCE02?view=true.

Council of Science Editors:

Ganendran L. Climatic and Oceanographic Effects on Survival of Little Penguins in Southeastern Australia. [Doctoral Dissertation]. University of New South Wales; 2017. Available from: http://handle.unsw.edu.au/1959.4/59039 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:48344/SOURCE02?view=true

University of Texas – Austin

5. Pope, Nathaniel Spencer. Genetic mark-recapture provides insights into bee movement and plant reproductive success.

Degree: PhD, Ecology, Evolution and Behavior, 2019, University of Texas – Austin

URL: http://dx.doi.org/10.26153/tsw/5273

► Genetic data offer a means of inferring the contemporary and historical movement of organisms, in study systems where direct observation is infeasible. However, the use… (more)

Subjects/Keywords: Pollination biology; bee movement; genetic mark recapture

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Pope, N. S. (2019). Genetic mark-recapture provides insights into bee movement and plant reproductive success. (Doctoral Dissertation). University of Texas – Austin. Retrieved from http://dx.doi.org/10.26153/tsw/5273

Chicago Manual of Style (16^th Edition):

Pope, Nathaniel Spencer. “Genetic mark-recapture provides insights into bee movement and plant reproductive success.” 2019. Doctoral Dissertation, University of Texas – Austin. Accessed March 02, 2021. http://dx.doi.org/10.26153/tsw/5273.

MLA Handbook (7^th Edition):

Pope, Nathaniel Spencer. “Genetic mark-recapture provides insights into bee movement and plant reproductive success.” 2019. Web. 02 Mar 2021.

Vancouver:

Pope NS. Genetic mark-recapture provides insights into bee movement and plant reproductive success. [Internet] [Doctoral dissertation]. University of Texas – Austin; 2019. [cited 2021 Mar 02]. Available from: http://dx.doi.org/10.26153/tsw/5273.

Council of Science Editors:

Pope NS. Genetic mark-recapture provides insights into bee movement and plant reproductive success. [Doctoral Dissertation]. University of Texas – Austin; 2019. Available from: http://dx.doi.org/10.26153/tsw/5273

Virginia Tech

6. Augustine, Ben C. Leveraging Partial Identity Information in Spatial Capture-Recapture Studies with Applications to Remote Camera and Genetic Capture-Recapture Surveys.

Degree: PhD, Fisheries and Wildlife Science, 2018, Virginia Tech

URL: http://hdl.handle.net/10919/82727

► Noninvasive methods for monitoring wildlife species have revolutionized the way population parameters, such as population density and survival and recruitment rates, are estimated while accounting… (more)

▼ Noninvasive methods for monitoring wildlife species have revolutionized the way population parameters, such as population density and survival and recruitment rates, are estimated while accounting for imperfect detection using capture-recapture models. Reliable estimates of these parameters are vital information required for making sound conservation decisions; however to date, noninvasive sampling methods have been of limited use for a vast number of species which are difficult to identify to the individual level–a general requirement of capture-recapture models. Capture-recapture models that utilize partial identity information have only recently been introduced and have not been extended to most types of noninvasive sampling scenarios in a manner that uses the spatial location where noninvasive samples were collected to further inform complete identity (i.e. spatial partial identity models). Herein, I extend the recently introduced spatial partial identity models to the noninvasive methods of remote cameras for species that are difficult to identify from photographs and DNA from hair or scat samples. The ability of these novel models to improve parameter estimation and extend study design options are investigated and the methods are made accessible to applied ecologists via statistical software. This research has the potential to greatly improve wildlife conservation decisions by improving our knowledge of parameters related to population structure and dynamics that inform those decisions. Unfortunately, many species of conservation concern (e.g., Florida panthers, Andean bears) are managed without having the necessary information on population status or trends, largely a result of the cost and difficulty of studying species in decline and because of the difficulty of applying statistical models to sparse data, which can produce imprecise and biased estimates of population parameters. By leveraging partial identity information in noninvasive samples, the models I developed will improve these parameter estimates and allow noninvasive methods to be used for more species, leading to more informed conservation decisions, and a more efficient allocation of conservation resources across species and populations. Advisors/Committee Members: Kelly, Marcella J. (committeechair), Bonner, Simon (committee member), Catlin, Daniel Herbert (committee member), Royle, Jeffrey Andrew (committee member).

Subjects/Keywords: Spatial capture-recapture; partial identity; unmarked spatial capture-recapture; microsatellites; genetic mark-recapture; camera trap

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Augustine, B. C. (2018). Leveraging Partial Identity Information in Spatial Capture-Recapture Studies with Applications to Remote Camera and Genetic Capture-Recapture Surveys. (Doctoral Dissertation). Virginia Tech. Retrieved from http://hdl.handle.net/10919/82727

Chicago Manual of Style (16^th Edition):

Augustine, Ben C. “Leveraging Partial Identity Information in Spatial Capture-Recapture Studies with Applications to Remote Camera and Genetic Capture-Recapture Surveys.” 2018. Doctoral Dissertation, Virginia Tech. Accessed March 02, 2021. http://hdl.handle.net/10919/82727.

MLA Handbook (7^th Edition):

Augustine, Ben C. “Leveraging Partial Identity Information in Spatial Capture-Recapture Studies with Applications to Remote Camera and Genetic Capture-Recapture Surveys.” 2018. Web. 02 Mar 2021.

Vancouver:

Augustine BC. Leveraging Partial Identity Information in Spatial Capture-Recapture Studies with Applications to Remote Camera and Genetic Capture-Recapture Surveys. [Internet] [Doctoral dissertation]. Virginia Tech; 2018. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/10919/82727.

Council of Science Editors:

Augustine BC. Leveraging Partial Identity Information in Spatial Capture-Recapture Studies with Applications to Remote Camera and Genetic Capture-Recapture Surveys. [Doctoral Dissertation]. Virginia Tech; 2018. Available from: http://hdl.handle.net/10919/82727

7. Mitchell, Corey I. Desert Tortoises, Density, and Violated Assumptions: Improving Estimates with Spatial Information.

Degree: 2020, University of Nevada – Reno

URL: http://hdl.handle.net/11714/7394

► Accurate population estimates are essential for monitoring the recovery of the federally listed Mojave desert tortoise (Gopherus agassizii), however, desert tortoise populations are difficult to… (more)

▼ Accurate population estimates are essential for monitoring the recovery of the federally listed Mojave desert tortoise (Gopherus agassizii), however, desert tortoise populations are difficult to accurately quantify due to a number of factors. Mark-recapture sampling methods have regularly been used to monitor this species, but the methods employed are often plagued by the violation of statistical assumptions, which have the potential to bias density estimates. By incorporating spatial information into conventional density estimation models, spatial capture-recapture (SCR) models can account for common assumption violations such as spatially heterogeneous detection probabilities and temporary emigration when animals leave plots during surveys. We conducted mark-recapture surveys separated by three years at 10 1-km2 plots in and adjacent to the Ivanpah Valley of CA and NV from 2015-2019. Movement data were collected concurrently using radio-telemetry and GPS data loggers. GPS data demonstrated that desert tortoises frequently exhibited temporary emigration outside the plot during the three-day survey periods; thereby, complicating standard approaches for closed-model density estimation. We integrated mark-recapture survey data for adults (>160 mm MCL) at each plot with corresponding spatial capture locations and supplementary spatial data using a modified SCR model fitted in a Bayesian framework. We compared density estimates modeled with conventional non-spatial methods, as well as three standard SCR models based on symmetrical usage areas described by various levels of supplementary spatial data, and a novel SCR model that integrates daily movement displacement quantified from fine-scale GPS data to define movement between sampling periods. The conventional model consistently resulted in inflated estimates of density while the standard SCR models allowed us to generate spatially corrected estimates for a species where detectability and abundance are low. However, we found that if not properly specified, the temporal scale of supplementary data may result in an unintended source of bias. Our results demonstrate the importance of accounting for spatial information as well was the value of understanding model specification when estimating density for the desert tortoise and have the potential to enhance the efficacy of long-term efforts to monitor population trends and inform recovery efforts. Advisors/Committee Members: Nussear, Kenneth E (advisor), Heaton, Jill S (committee member), Esque, Todd C (committee member), Shoemaker, Kevin T (committee member).

Subjects/Keywords: Density; Desert tortoise; Gopherus agassizii; GPS; Mark-recapture; Spatial capture-recapture

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Mitchell, C. I. (2020). Desert Tortoises, Density, and Violated Assumptions: Improving Estimates with Spatial Information. (Thesis). University of Nevada – Reno. Retrieved from http://hdl.handle.net/11714/7394

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):

Mitchell, Corey I. “Desert Tortoises, Density, and Violated Assumptions: Improving Estimates with Spatial Information.” 2020. Thesis, University of Nevada – Reno. Accessed March 02, 2021. http://hdl.handle.net/11714/7394.

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

MLA Handbook (7^th Edition):

Mitchell, Corey I. “Desert Tortoises, Density, and Violated Assumptions: Improving Estimates with Spatial Information.” 2020. Web. 02 Mar 2021.

Vancouver:

Mitchell CI. Desert Tortoises, Density, and Violated Assumptions: Improving Estimates with Spatial Information. [Internet] [Thesis]. University of Nevada – Reno; 2020. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/11714/7394.

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

Council of Science Editors:

Mitchell CI. Desert Tortoises, Density, and Violated Assumptions: Improving Estimates with Spatial Information. [Thesis]. University of Nevada – Reno; 2020. Available from: http://hdl.handle.net/11714/7394

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

University of Georgia

8. Sylvest, Joshua Thomas. Abundance and density estimation of the central Georgia black bear population.

Degree: 2014, University of Georgia

URL: http://hdl.handle.net/10724/30674

► We used DNA-based capture-mark-recapture techniques to estimate sex-specific abundance of black bears in central Georgia. We conducted hair sampling over 2 8-week periods during the… (more)

Subjects/Keywords: Black bear; Ursus americana; capture-mark-recapture; MARK; microsatellite genotyping

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Sylvest, J. T. (2014). Abundance and density estimation of the central Georgia black bear population. (Thesis). University of Georgia. Retrieved from http://hdl.handle.net/10724/30674

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):

Sylvest, Joshua Thomas. “Abundance and density estimation of the central Georgia black bear population.” 2014. Thesis, University of Georgia. Accessed March 02, 2021. http://hdl.handle.net/10724/30674.

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

MLA Handbook (7^th Edition):

Sylvest, Joshua Thomas. “Abundance and density estimation of the central Georgia black bear population.” 2014. Web. 02 Mar 2021.

Vancouver:

Sylvest JT. Abundance and density estimation of the central Georgia black bear population. [Internet] [Thesis]. University of Georgia; 2014. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/10724/30674.

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

Council of Science Editors:

Sylvest JT. Abundance and density estimation of the central Georgia black bear population. [Thesis]. University of Georgia; 2014. Available from: http://hdl.handle.net/10724/30674

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

University of St. Andrews

9. Stevenson, Ben C. Methods in spatially explicit capture-recapture .

Degree: 2016, University of St. Andrews

URL: http://hdl.handle.net/10023/18233

► Capture-recapture (CR) methods are a ubiquitous means of estimating animal abundance from wildlife surveys. They rely on the detection and subsequent redetection of individuals over… (more)

▼ Capture-recapture (CR) methods are a ubiquitous means of estimating animal abundance from wildlife surveys. They rely on the detection and subsequent redetection of individuals over a number of sampling occasions. It is usually necessary for individuals to be recognised upon redetection. Spatially explicit capture-recapture (SECR) methods generalise those of CR by accounting for the locations at which each detection occurs. This allows spatial heterogeneity in detection probabilities to be accounted for: individuals with home-range centres near the detector array are more likely to be detected. They also permit estimation of animal density in addition to abundance. One particular advantage of SECR methods is that they can be used when individuals are detected via the cues they produce – examples include birdsongs detected by microphones and whale surfacings detected by human observers. In such situations each cue may be detected by multiple detectors at different fixed locations. Redetections are then spatial (rather than temporal) in nature, and density can be estimated from a single survey occasion. Existing methods, however, cannot generally be appropriately applied to the resulting cue-detection data without making assumptions that rarely hold. Additionally, they usually estimate cue density rather than animal density, which does not usually have the same biological importance. This thesis extends SECR methodology primarily for the appropriate estimation of animal density from cue-based SECR surveys. These extensions include (i) incorporation of auxiliary survey data into SECR estimators, (ii) appropriate point and variance estimators of animal density for a range of scenarios, and (iii) methods to account for both heterogeneity in detectability and cues that are directional in nature. Moreover, a general class of methods is presented for the estimation of demographic parameters from wildlife surveys on which individuals cannot be recognised. These can variously be applied to CR and – potentially – SECR. Advisors/Committee Members: Borchers, D. L (advisor).

Subjects/Keywords: Ecological statistics; Spatial capture-recapture; Mark-recapture; Animal density estimation; Passive acoustic monitoring; Aerial surveys

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Stevenson, B. C. (2016). Methods in spatially explicit capture-recapture . (Thesis). University of St. Andrews. Retrieved from http://hdl.handle.net/10023/18233

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):

Stevenson, Ben C. “Methods in spatially explicit capture-recapture .” 2016. Thesis, University of St. Andrews. Accessed March 02, 2021. http://hdl.handle.net/10023/18233.

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

MLA Handbook (7^th Edition):

Stevenson, Ben C. “Methods in spatially explicit capture-recapture .” 2016. Web. 02 Mar 2021.

Vancouver:

Stevenson BC. Methods in spatially explicit capture-recapture . [Internet] [Thesis]. University of St. Andrews; 2016. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/10023/18233.

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

Council of Science Editors:

Stevenson BC. Methods in spatially explicit capture-recapture . [Thesis]. University of St. Andrews; 2016. Available from: http://hdl.handle.net/10023/18233

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

University of Georgia

10. Luhring, Thomas Marshall. Population ecology of greater siren, Siren lacertina.

Degree: 2014, University of Georgia

URL: http://hdl.handle.net/10724/24684

► The greater siren, Siren lacertina, is the heaviest and third longest salamander in the western hemisphere, was described nearly two and a half centuries ago… (more)

Subjects/Keywords: Greater Siren; Siren lacertina; Mark-recapture; Population Ecology; Demography; Sirenidae

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Luhring, T. M. (2014). Population ecology of greater siren, Siren lacertina. (Thesis). University of Georgia. Retrieved from http://hdl.handle.net/10724/24684

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):

Luhring, Thomas Marshall. “Population ecology of greater siren, Siren lacertina.” 2014. Thesis, University of Georgia. Accessed March 02, 2021. http://hdl.handle.net/10724/24684.

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

MLA Handbook (7^th Edition):

Luhring, Thomas Marshall. “Population ecology of greater siren, Siren lacertina.” 2014. Web. 02 Mar 2021.

Vancouver:

Luhring TM. Population ecology of greater siren, Siren lacertina. [Internet] [Thesis]. University of Georgia; 2014. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/10724/24684.

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

Council of Science Editors:

Luhring TM. Population ecology of greater siren, Siren lacertina. [Thesis]. University of Georgia; 2014. Available from: http://hdl.handle.net/10724/24684

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

University of Georgia

11. Schueller, Paul Michael. Population dynamics of Atlantic sturgeon in the Altamaha River, Georgia.

Degree: 2014, University of Georgia

URL: http://hdl.handle.net/10724/25306

► The Atlantic sturgeon was commercially harvested in the United States until 1996. The current status of most populations since fishery closure is unknown as life… (more)

Subjects/Keywords: Atlantic sturgeon; population assessment; population dynamics; mark-recapture

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Schueller, P. M. (2014). Population dynamics of Atlantic sturgeon in the Altamaha River, Georgia. (Thesis). University of Georgia. Retrieved from http://hdl.handle.net/10724/25306

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):

Schueller, Paul Michael. “Population dynamics of Atlantic sturgeon in the Altamaha River, Georgia.” 2014. Thesis, University of Georgia. Accessed March 02, 2021. http://hdl.handle.net/10724/25306.

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

MLA Handbook (7^th Edition):

Schueller, Paul Michael. “Population dynamics of Atlantic sturgeon in the Altamaha River, Georgia.” 2014. Web. 02 Mar 2021.

Vancouver:

Schueller PM. Population dynamics of Atlantic sturgeon in the Altamaha River, Georgia. [Internet] [Thesis]. University of Georgia; 2014. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/10724/25306.

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

Council of Science Editors:

Schueller PM. Population dynamics of Atlantic sturgeon in the Altamaha River, Georgia. [Thesis]. University of Georgia; 2014. Available from: http://hdl.handle.net/10724/25306

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

Penn State University

12. Munoz, David Jonathan. Using Quantitative Approaches to Estimate Space-use, Population Dynamics, Behavior, and Climate Change Adaptive Potential for the Red-backed Salamander Plethodon Cinereus.

Degree: 2015, Penn State University

URL: https://submit-etda.libraries.psu.edu/catalog/26259

► The red-backed salamander, Plethodon cinereus, is a common woodland amphibian that is found throughout much of eastern North America. The species is important to forest… (more)

Subjects/Keywords: Population ecology; Capture mark-recapture; Study design; Adaptive Capacity; Climate Change

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Munoz, D. J. (2015). Using Quantitative Approaches to Estimate Space-use, Population Dynamics, Behavior, and Climate Change Adaptive Potential for the Red-backed Salamander Plethodon Cinereus. (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/26259

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):

Munoz, David Jonathan. “Using Quantitative Approaches to Estimate Space-use, Population Dynamics, Behavior, and Climate Change Adaptive Potential for the Red-backed Salamander Plethodon Cinereus.” 2015. Thesis, Penn State University. Accessed March 02, 2021. https://submit-etda.libraries.psu.edu/catalog/26259.

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

MLA Handbook (7^th Edition):

Munoz, David Jonathan. “Using Quantitative Approaches to Estimate Space-use, Population Dynamics, Behavior, and Climate Change Adaptive Potential for the Red-backed Salamander Plethodon Cinereus.” 2015. Web. 02 Mar 2021.

Vancouver:

Munoz DJ. Using Quantitative Approaches to Estimate Space-use, Population Dynamics, Behavior, and Climate Change Adaptive Potential for the Red-backed Salamander Plethodon Cinereus. [Internet] [Thesis]. Penn State University; 2015. [cited 2021 Mar 02]. Available from: https://submit-etda.libraries.psu.edu/catalog/26259.

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

Council of Science Editors:

Munoz DJ. Using Quantitative Approaches to Estimate Space-use, Population Dynamics, Behavior, and Climate Change Adaptive Potential for the Red-backed Salamander Plethodon Cinereus. [Thesis]. Penn State University; 2015. Available from: https://submit-etda.libraries.psu.edu/catalog/26259

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

Penn State University

13. Hill, Jason Michael. Population Ecology of Grassland Sparrows on Reclaimed Surface Mine Grasslands in Pennsylvania.

Degree: 2012, Penn State University

URL: https://submit-etda.libraries.psu.edu/catalog/15671

► Grassland sparrow populations have experienced substantial declines across their range, and reclaimed surface mine grasslands have been recognized for their importance to grassland sparrow populations.… (more)

▼ Grassland sparrow populations have experienced substantial declines across their range, and reclaimed surface mine grasslands have been recognized for their importance to grassland sparrow populations. The influence of vegetation structure on the probability of nest survival for grassland bird species has received considerable attention. There is some evidence that the mere presence of woody vegetation results in decreased survival rates, but these results are correlative in nature. Increasingly, individuals and institutions have called for the removal of woody vegetation from grasslands to promote grassland sparrow populations. To understand how woody vegetation and landscape components affect grassland sparrow ecology on reclaimed surface mine grasslands I implement two research projects. For the first research project, I monitored grasshopper (Ammodramus savannarum) and Henslow’s (A. henslowii) sparrow population dynamics over a three-year period (2009-2011) across eight 20.2 ha plots of surface mine grasslands with various amounts of scattered woody vegetation coverage (~5-36%) in Pennsylvania. Using a before-after-control-design for pairs (BACIP), woody vegetation was removed from treatment plots following the first breeding season. I monitored daily nest survival (DNS), interspecific brood parasitism rates, fledgling production and calculated changes in apparent survivorship, juvenile return rates, and population growth rates in response to woody vegetation removal. Following woody vegetation removal the DNS of 216 nests was unaffected by either the density of woody vegetation around a nest, distance to closest shrub, or shrub coverage percent for either species. I recorded no incidences of interspecific brood parasitism by brown cowbirds (Molothrus ater). Grasshopper and Henslow’s sparrow DNS probabilities (mean ± SE; 0.952 ± 0.001, 95% CI: 0.950 – 0.955), regardless of treatment or control plot status, were at least as high as other studies have previously reported. Fledgling production from successful nests, however, declined slightly (95% CI: -0.046 – -0.002, per unit change on the logit scale) as woody vegetation coverage increased across plots. My results suggest that the presence of woody vegetation on reclaimed surface mines does not necessarily equate to poor nesting habitat for grasshopper and Henslow’s sparrows, and that both species successfully nest and produce young in habitats with greater amounts of woody vegetation than has previously been considered. The grasshopper sparrow apparent survival rate did not differ between control and treatment plots (all years and plots ϕ = 0.42, 95% CI: 0.34 – 0.52). Henslow’s sparrow populations, however, experienced a three-fold decrease in apparent survivorship following woody vegetation removal compared to Henslow’s sparrow populations on control plots (ϕ = 0.08, 95% CI: 0.02 – 0.35, and ϕ = 0.23, 95% CI: 0.12 – 0.43, respectively). The overall grasshopper sparrow population size across treatment plots increased by 14% (λ = 1.15, 95% CI: 1.14 – 1.16) from… Advisors/Committee Members: Duane R Diefenbach, Dissertation Advisor/Co-Advisor, Robert Brooks, Committee Member, Tracy Lee Langkilde, Committee Member, Tyler Wagner, Committee Member.

Subjects/Keywords: Ammodramus; before-after-control-impact-design; occupancy; mark-recapture; robust-design

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Hill, J. M. (2012). Population Ecology of Grassland Sparrows on Reclaimed Surface Mine Grasslands in Pennsylvania. (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/15671

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):

Hill, Jason Michael. “Population Ecology of Grassland Sparrows on Reclaimed Surface Mine Grasslands in Pennsylvania.” 2012. Thesis, Penn State University. Accessed March 02, 2021. https://submit-etda.libraries.psu.edu/catalog/15671.

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

MLA Handbook (7^th Edition):

Hill, Jason Michael. “Population Ecology of Grassland Sparrows on Reclaimed Surface Mine Grasslands in Pennsylvania.” 2012. Web. 02 Mar 2021.

Vancouver:

Hill JM. Population Ecology of Grassland Sparrows on Reclaimed Surface Mine Grasslands in Pennsylvania. [Internet] [Thesis]. Penn State University; 2012. [cited 2021 Mar 02]. Available from: https://submit-etda.libraries.psu.edu/catalog/15671.

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

Council of Science Editors:

Hill JM. Population Ecology of Grassland Sparrows on Reclaimed Surface Mine Grasslands in Pennsylvania. [Thesis]. Penn State University; 2012. Available from: https://submit-etda.libraries.psu.edu/catalog/15671

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

Colorado State University

14. Arief, Riana Aryani. Dog demography and population estimates for rabies control in Bali, Indonesia.

Degree: MS(M.S.), Clinical Sciences, 2014, Colorado State University

URL: http://hdl.handle.net/10217/83878

► Rabies is a fatal zoonotic disease with global significance. At the end of 2008, rabies emerged in the Island of Bali, Indonesia, drawing international attention.… (more)

▼ Rabies is a fatal zoonotic disease with global significance. At the end of 2008, rabies emerged in the Island of Bali, Indonesia, drawing international attention. As the disease became wide-spread, the government focused on island-wide mass vaccination of dogs and improving public awareness, however the local dog population is not well documented. The Center for Indonesian Veterinary Analytical Studies (CIVAS), a local non-government organization in Indonesia, and the International Livestock Research Institute (ILRI) initiated a project to explore the link between the dog population and local communities in Bali with focus on the impact of this relationship in the spread of rabies. As part of that project, the objective of the study is to (1) characterize the demographics and rabies vaccination of owned and free-roaming dogs and (2) estimate the abundance and identify factors associated with the distribution of the dogs in Bali. The study was conducted on two dog subpopulations, owned and free-roaming dogs, in 310 banjars in Denpasar city, Gianyar district, and Karangasem district in Bali. Banjar is a subvillage structure in Bali. The sampling design was a two-stage sampling with villages as the primary sampling unit and banjars as the secondary sampling unit. Data were collected between March 2011 and March 2012. Survey of owned dogs was carried out through door to door interview of owners and photographic mark recapture was used to collect data on free-roaming dogs. Dogs were predominantly owned and the effect of unowned dogs towards the total population was minimal. Demographically, the sex ratio was male-biased and juveniles make up 15-20% of the population. Free-roaming dogs were dominated by adults and a higher proportion of males. There were differences in the demographics of dogs in urban and non-urban areas which should be considered when planning and implementing control programs. Overall vaccination coverage was high (>70%), however juveniles and females have a higher likelihood of not being vaccinated. The endurance of vaccination collars should be improved to better represent the true vaccination coverage in free-roaming dogs as there is high confidence that most free-roaming dogs were actually owned dogs. Recent culling was associated with increased proportions of juveniles and a 40% higher risk of dogs not being vaccinated. The observation of free-roaming dogs should always account for detection probability as only 20% of dogs in this study were seen at any given time. Failure to account for detection probability will result in severe underestimation of the population abundance. The human population, presence of a forest and recent culling accounted for 28% of variation in the number of owned dogs in banjars. Accordingly, the number of owned dogs and presence of rice paddies accounted for 61% of variation in the number of free-roaming dogs in banjars. Finally, the overall and median human to dog ratios were the least biased ratios available for estimating the overall dog population, however it… Advisors/Committee Members: Salman, M. D. (advisor), McCluskey, Brian J. (committee member), Doherty, Paul F. (committee member).

Subjects/Keywords: demography; dog; mark recapture; population estimation; rabies; vaccination

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Arief, R. A. (2014). Dog demography and population estimates for rabies control in Bali, Indonesia. (Masters Thesis). Colorado State University. Retrieved from http://hdl.handle.net/10217/83878

Chicago Manual of Style (16^th Edition):

Arief, Riana Aryani. “Dog demography and population estimates for rabies control in Bali, Indonesia.” 2014. Masters Thesis, Colorado State University. Accessed March 02, 2021. http://hdl.handle.net/10217/83878.

MLA Handbook (7^th Edition):

Arief, Riana Aryani. “Dog demography and population estimates for rabies control in Bali, Indonesia.” 2014. Web. 02 Mar 2021.

Vancouver:

Arief RA. Dog demography and population estimates for rabies control in Bali, Indonesia. [Internet] [Masters thesis]. Colorado State University; 2014. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/10217/83878.

Council of Science Editors:

Arief RA. Dog demography and population estimates for rabies control in Bali, Indonesia. [Masters Thesis]. Colorado State University; 2014. Available from: http://hdl.handle.net/10217/83878

Colorado State University

15. Pearson, Kristen Nicole. Sampling methodology tradeoffs: evaluating monitoring strategies for the endangered humpback chub (Gila cypha) in the Little Colorado River, Arizona.

Degree: MS(M.S.), Fish, Wildlife, and Conservation Biology, 2014, Colorado State University

URL: http://hdl.handle.net/10217/88586

► Implementation of a reliable monitoring program is essential to informed population management. When recovering a sensitive species, priority should be on minimizing human induced negative… (more)

▼ Implementation of a reliable monitoring program is essential to informed population management. When recovering a sensitive species, priority should be on minimizing human induced negative effects, given already reduced population abundance. Thus, it is crucial to evaluate monitoring programs and make changes when more efficient techniques become available. To assess tradeoffs in sampling effort first necessitates obtaining accurate demographic parameter estimates. However, obtaining such estimates may be challenging especially when assessing a migratory species monitored on its spawning ground. Due to concerns regarding sampling availability, in such cases, it may be necessary to evaluate temporary emigration from the study site to avoid generating biased estimates of survival, detection and spawning probabilities. Evaluating temporary emigration is especially important when non-annual spawning is anticipated, as skipped spawners may be unavailable for detection during annual sampling events. Since the late 1980s, population monitoring for the potamodromous humpback chub (HBC) Gila cypha within the Lower Colorado River Basin (LCRB) has focused on hoop-net sampling within their primary spawning ground, the Little Colorado River (LCR). However, questions remain unanswered regarding their spawning strategy. Thus, due to the likely presence of both resident and migratory fish and suspected non-annual spawning, I evaluated temporary emigration from the LCR, which I equate to skipped spawning. Using, robust design mark-recapture methodologies, I was able to generate unbiased estimates of survival and skipped spawning probabilities as well as spawner abundance. Given concern for handling induced stress due to intensive hoop-net sampling and to gain additional insight into HBC life history strategies and population dynamics, in 2009, a passive detection system (i.e. full duplex PIT tag antenna array) was implemented in the LCR. With the addition of the array, this afforded an opportunity to evaluate sampling methodology tradeoffs between hoop-netting and array detections. Thus, using simulation analysis, and demographic parameter estimates generated from my skipped spawning analysis, I assessed the potential benefits and shortcomings of reducing hoop-net sampling effort and supplementing recapture data with passive array detections. From my analysis, I found considerable evidence for skipped spawning among both male and female HBC. Females on average had a higher probability of failing to spawn in a year subsequent to spawning (i.e. γ"male = 0.46 (95% credible interval [CRI]: 0.11, 0.81) and γ"female = 0.55 (95% CRI: 0.30, 0.75), although better sexing data is necessary to confirm this difference. Annual variability in skipped spawning probability was high (i.e. process variance (σ2) = 0.306) while survival probability remained stable throughout the study period (i.e. S = 0.75 (95% CRI: 0.66, 0.82), σ2 = 0.005). Based on my most reliable skipped spawning probability estimates, (i.e. probability a… Advisors/Committee Members: Kendall, William (advisor), Winkelman, Dana (committee member), Hess, Ann (committee member).

Subjects/Keywords: humpback chub; temporary emigration; skipped spawning; robust design; mark-recapture

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Pearson, K. N. (2014). Sampling methodology tradeoffs: evaluating monitoring strategies for the endangered humpback chub (Gila cypha) in the Little Colorado River, Arizona. (Masters Thesis). Colorado State University. Retrieved from http://hdl.handle.net/10217/88586

Chicago Manual of Style (16^th Edition):

Pearson, Kristen Nicole. “Sampling methodology tradeoffs: evaluating monitoring strategies for the endangered humpback chub (Gila cypha) in the Little Colorado River, Arizona.” 2014. Masters Thesis, Colorado State University. Accessed March 02, 2021. http://hdl.handle.net/10217/88586.

MLA Handbook (7^th Edition):

Pearson, Kristen Nicole. “Sampling methodology tradeoffs: evaluating monitoring strategies for the endangered humpback chub (Gila cypha) in the Little Colorado River, Arizona.” 2014. Web. 02 Mar 2021.

Vancouver:

Pearson KN. Sampling methodology tradeoffs: evaluating monitoring strategies for the endangered humpback chub (Gila cypha) in the Little Colorado River, Arizona. [Internet] [Masters thesis]. Colorado State University; 2014. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/10217/88586.

Council of Science Editors:

Pearson KN. Sampling methodology tradeoffs: evaluating monitoring strategies for the endangered humpback chub (Gila cypha) in the Little Colorado River, Arizona. [Masters Thesis]. Colorado State University; 2014. Available from: http://hdl.handle.net/10217/88586

University of Ottawa

16. Paterson, James. Drivers of Density in Ornate Tree Lizards (Urosaurus ornatus) .

Degree: 2017, University of Ottawa

URL: http://hdl.handle.net/10393/36892

► Explaining spatial and temporal variation in the abundance of species is one of the primary goals of ecology. Habitat selection, the behaviour that organisms use… (more)

▼ Explaining spatial and temporal variation in the abundance of species is one of the primary goals of ecology. Habitat selection, the behaviour that organisms use to choose habitat patches that maximize fitness, can explain patterns in abundance between patches at small spatial scales within the dispersal capacity of the species. However, habitat selection models assume there is a reduction in individual fitness as population density increases due to increased competition between individuals. Ectotherms, which often select habitats based on temperature, a density-independent resource, may not display density-dependent responses if temperature limits energy assimilation more than finite food resources limit energy acquisition. As predicted by their dependence on environmental temperatures, some ectotherms select habitat largely independently of population density when temperatures are far from the optimal temperature for performance. But, is density-dependence prevalent in ectotherm populations when temperatures are close to the optimal temperature for performance? Habitat selection models also assume that all individuals of a population exhibit the same strategy for maximizing fitness through habitat selection. However, differences in morphology and behaviour (e.g., reproductive strategy) can modify the optimal habitat selection strategy for different phenotypes. Finally, observed patterns in habitat selection and abundance can also be modified by competition with other species. Quantifying the relative importance of these different factors that affect habitat selection behaviour will improve our ability to predict the spatial distribution and relative abundance of organisms. The objective of my thesis was to explain spatial variation in the abundance of ectotherms, using the ornate tree lizard (Urosaurus ornatus) as a study species. In chapter one, I tested whether density-dependent habitat selection explained patterns in abundance and fitness of lizards between two habitats differing in suitability. In chapter two, I tested whether density dependent habitat selection in tree lizards was caused by intraspecific competition for food that limited body size and growth. In chapter three, I tested whether variation in reproductive strategy, as indicated by throat colour phenotype, affected space use and habitat selection in male tree lizards. Finally, in chapter four, I tested whether interspecific competition with another lizard species affected habitat selection, fitness, and abundance of tree lizards. My thesis emphasizes the importance of intraspecific competition in shaping patterns of habitat selection and abundance in terrestrial ectotherms. I show that habitat selection is strongly density-dependent despite differences in thermal quality between habitats. I show that density-dependent mortality and growth lower the fitness of individuals when populations reach high densities, and this likely caused habitat selection to be density-dependent. Despite this evidence for density-dependent habitat selection, I show…

Subjects/Keywords: Density; Habitat selection; Ectotherm; Mark-recapture; Ideal Free Distribution; Competition

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Paterson, J. (2017). Drivers of Density in Ornate Tree Lizards (Urosaurus ornatus) . (Thesis). University of Ottawa. Retrieved from http://hdl.handle.net/10393/36892

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):

Paterson, James. “Drivers of Density in Ornate Tree Lizards (Urosaurus ornatus) .” 2017. Thesis, University of Ottawa. Accessed March 02, 2021. http://hdl.handle.net/10393/36892.

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

MLA Handbook (7^th Edition):

Paterson, James. “Drivers of Density in Ornate Tree Lizards (Urosaurus ornatus) .” 2017. Web. 02 Mar 2021.

Vancouver:

Paterson J. Drivers of Density in Ornate Tree Lizards (Urosaurus ornatus) . [Internet] [Thesis]. University of Ottawa; 2017. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/10393/36892.

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

Council of Science Editors:

Paterson J. Drivers of Density in Ornate Tree Lizards (Urosaurus ornatus) . [Thesis]. University of Ottawa; 2017. Available from: http://hdl.handle.net/10393/36892

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

University of Miami

17. Phillips, Katrina. Beyond the Beach: Population Trends and Foraging Site Selection of a Florida Loggerhead Nesting Assemblage.

Degree: MS, Marine Affairs and Policy (Marine), 2011, University of Miami

URL: https://scholarlyrepository.miami.edu/oa_theses/245

► A twenty year mark-recapture dataset from the loggerhead nesting beach on Keewaydin Island, off the southwest coast of Florida, was analyzed using a two-state open… (more)

Subjects/Keywords: Loggerhead sea turtle; mark-recapture; remigration; satellite telemetry; foraging; management

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Phillips, K. (2011). Beyond the Beach: Population Trends and Foraging Site Selection of a Florida Loggerhead Nesting Assemblage. (Thesis). University of Miami. Retrieved from https://scholarlyrepository.miami.edu/oa_theses/245

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):

Phillips, Katrina. “Beyond the Beach: Population Trends and Foraging Site Selection of a Florida Loggerhead Nesting Assemblage.” 2011. Thesis, University of Miami. Accessed March 02, 2021. https://scholarlyrepository.miami.edu/oa_theses/245.

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

MLA Handbook (7^th Edition):

Phillips, Katrina. “Beyond the Beach: Population Trends and Foraging Site Selection of a Florida Loggerhead Nesting Assemblage.” 2011. Web. 02 Mar 2021.

Vancouver:

Phillips K. Beyond the Beach: Population Trends and Foraging Site Selection of a Florida Loggerhead Nesting Assemblage. [Internet] [Thesis]. University of Miami; 2011. [cited 2021 Mar 02]. Available from: https://scholarlyrepository.miami.edu/oa_theses/245.

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

Council of Science Editors:

Phillips K. Beyond the Beach: Population Trends and Foraging Site Selection of a Florida Loggerhead Nesting Assemblage. [Thesis]. University of Miami; 2011. Available from: https://scholarlyrepository.miami.edu/oa_theses/245

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

North-West University

18. Viviers, Joanita. Seasonal migration and reproductive behaviour of the Common River Frog (Amietia quecketti) / Joanita Viviers .

Degree: 2013, North-West University

URL: http://hdl.handle.net/10394/10212

► The Common River Frog Amietia quecketti is a well-known and widely distributed species in southern Africa. Despite the fact that it is a common species… (more)

Subjects/Keywords: Amietia quecketti; Behaviour; Seasonal activities; Call structure; Mark-recapture

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Viviers, J. (2013). Seasonal migration and reproductive behaviour of the Common River Frog (Amietia quecketti) / Joanita Viviers . (Thesis). North-West University. Retrieved from http://hdl.handle.net/10394/10212

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):

Viviers, Joanita. “Seasonal migration and reproductive behaviour of the Common River Frog (Amietia quecketti) / Joanita Viviers .” 2013. Thesis, North-West University. Accessed March 02, 2021. http://hdl.handle.net/10394/10212.

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

MLA Handbook (7^th Edition):

Viviers, Joanita. “Seasonal migration and reproductive behaviour of the Common River Frog (Amietia quecketti) / Joanita Viviers .” 2013. Web. 02 Mar 2021.

Vancouver:

Viviers J. Seasonal migration and reproductive behaviour of the Common River Frog (Amietia quecketti) / Joanita Viviers . [Internet] [Thesis]. North-West University; 2013. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/10394/10212.

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

Council of Science Editors:

Viviers J. Seasonal migration and reproductive behaviour of the Common River Frog (Amietia quecketti) / Joanita Viviers . [Thesis]. North-West University; 2013. Available from: http://hdl.handle.net/10394/10212

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

University of St. Andrews

19. Arso Civil, Mònica. Population ecology of bottlenose dolphins (Tursiops truncatus) off the east coast of Scotland .

Degree: 2015, University of St. Andrews

URL: http://hdl.handle.net/10023/6543

► The population of bottlenose dolphins off the east coast of Scotland has been studied since the late 1980s, initially focused on the inner Moray Firth,… (more)

▼ The population of bottlenose dolphins off the east coast of Scotland has been studied since the late 1980s, initially focused on the inner Moray Firth, where a Special Area of Conservation (SAC) was designated under the EU Habitats Directive. The population has since expanded its distributional range and currently ranges from the Moray Firth to the Firth of Forth. The main aims of this thesis were: (1) to estimate population parameters for this population using a 25 year individual recognition dataset, and (2) to increase knowledge of the distribution and abundance of dolphins in areas outside the SAC, especially to investigate areas of high use in St Andrews Bay. Apparent survival rate for adults and sub–adult dolphins was estimated at 0.946 (SE=0.005) accounting for temporary emigration caused by the population’s range expansion. Sex-specific survival was estimated for males (0.951, SE=0.013) and females (0.956, SE=0.011) using multistate models to minimize bias caused by individuals of unknown sex. Using a newly developed approach, fecundity rate was estimated at 0.222 (95% CI=0.218-0.253) from an expected mean inter-birth interval of 4.49 yrs (95% CI=3.94-4.93). Total population size was estimated as ~200 individuals, after accounting for temporary emigration and for heterogeneity in capture probabilities. In St Andrews Bay, an area used regularly in summer by approximately half the estimated population, habitat use modelling identified the entrance to the Firth of Tay and waters around Montrose as high use areas for dolphins, whose presence was influenced by tidal current speed and direction. The results suggest that the conservation and management plan for this small and isolated population of bottlenose dolphins should be reviewed to adapt it to current knowledge, especially regarding the uncertainty around the potential impacts of offshore renewable energy developments off the east coast of Scotland. Advisors/Committee Members: Hammond, Philip S (advisor).

Subjects/Keywords: Bottlenose dolphin; Population parameters; Mark-recapture; Habitat modelling; Conservation

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Arso Civil, M. (2015). Population ecology of bottlenose dolphins (Tursiops truncatus) off the east coast of Scotland . (Thesis). University of St. Andrews. Retrieved from http://hdl.handle.net/10023/6543

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):

Arso Civil, Mònica. “Population ecology of bottlenose dolphins (Tursiops truncatus) off the east coast of Scotland .” 2015. Thesis, University of St. Andrews. Accessed March 02, 2021. http://hdl.handle.net/10023/6543.

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

MLA Handbook (7^th Edition):

Arso Civil, Mònica. “Population ecology of bottlenose dolphins (Tursiops truncatus) off the east coast of Scotland .” 2015. Web. 02 Mar 2021.

Vancouver:

Arso Civil M. Population ecology of bottlenose dolphins (Tursiops truncatus) off the east coast of Scotland . [Internet] [Thesis]. University of St. Andrews; 2015. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/10023/6543.

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

Council of Science Editors:

Arso Civil M. Population ecology of bottlenose dolphins (Tursiops truncatus) off the east coast of Scotland . [Thesis]. University of St. Andrews; 2015. Available from: http://hdl.handle.net/10023/6543

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

University of Maryland

20. Liljestrand, Emily Morgan. Mortality and Movement of Adult Atlantic Menhaden During 1966-1969 Estimated from Mark-Recapture Models.

Degree: Marine-Estuarine-Environmental Sciences, 2017, University of Maryland

URL: http://hdl.handle.net/1903/20017

► Atlantic Menhaden Brevoortia tyrannus is an economically and ecologically important forage fish. I built a multi-state mark-recapture model to estimate movement, fishing mortality, and natural… (more)

Subjects/Keywords: Wildlife management; Bayesian; Forage Fish; Mark-Recapture; Menhaden; Movement; Natural Mortality

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Liljestrand, E. M. (2017). Mortality and Movement of Adult Atlantic Menhaden During 1966-1969 Estimated from Mark-Recapture Models. (Thesis). University of Maryland. Retrieved from http://hdl.handle.net/1903/20017

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):

Liljestrand, Emily Morgan. “Mortality and Movement of Adult Atlantic Menhaden During 1966-1969 Estimated from Mark-Recapture Models.” 2017. Thesis, University of Maryland. Accessed March 02, 2021. http://hdl.handle.net/1903/20017.

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

MLA Handbook (7^th Edition):

Liljestrand, Emily Morgan. “Mortality and Movement of Adult Atlantic Menhaden During 1966-1969 Estimated from Mark-Recapture Models.” 2017. Web. 02 Mar 2021.

Vancouver:

Liljestrand EM. Mortality and Movement of Adult Atlantic Menhaden During 1966-1969 Estimated from Mark-Recapture Models. [Internet] [Thesis]. University of Maryland; 2017. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/1903/20017.

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

Council of Science Editors:

Liljestrand EM. Mortality and Movement of Adult Atlantic Menhaden During 1966-1969 Estimated from Mark-Recapture Models. [Thesis]. University of Maryland; 2017. Available from: http://hdl.handle.net/1903/20017

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

University of Georgia

21. Farrae, Daniel Jacob. Population dynamics and movements of shortnose sturgeon in the Ogeechee River, Georgia.

Degree: 2014, University of Georgia

URL: http://hdl.handle.net/10724/26312

► The shortnose sturgeon is endangered because of over-harvest, habitat degradation, and a shrinking range. The current status of most populations remains unknown. From 2007 to… (more)

Subjects/Keywords: Acipenser brevirostrum; mark-recapture; habitat suitability; telemetry; metapopulation

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Farrae, D. J. (2014). Population dynamics and movements of shortnose sturgeon in the Ogeechee River, Georgia. (Thesis). University of Georgia. Retrieved from http://hdl.handle.net/10724/26312

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):

Farrae, Daniel Jacob. “Population dynamics and movements of shortnose sturgeon in the Ogeechee River, Georgia.” 2014. Thesis, University of Georgia. Accessed March 02, 2021. http://hdl.handle.net/10724/26312.

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

MLA Handbook (7^th Edition):

Farrae, Daniel Jacob. “Population dynamics and movements of shortnose sturgeon in the Ogeechee River, Georgia.” 2014. Web. 02 Mar 2021.

Vancouver:

Farrae DJ. Population dynamics and movements of shortnose sturgeon in the Ogeechee River, Georgia. [Internet] [Thesis]. University of Georgia; 2014. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/10724/26312.

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

Council of Science Editors:

Farrae DJ. Population dynamics and movements of shortnose sturgeon in the Ogeechee River, Georgia. [Thesis]. University of Georgia; 2014. Available from: http://hdl.handle.net/10724/26312

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

Colorado State University

22. Fitzpatrick, Sarah Warner. Testing the effects of gene flow on adaptation, fitness, and demography in wild populations.

Degree: PhD, Biology, 2015, Colorado State University

URL: http://hdl.handle.net/10217/167154

► Gene flow should reduce differences among populations, potentially limiting adaptation and population growth. But small populations stand to benefit from gene flow through genetic and… (more)

▼ Gene flow should reduce differences among populations, potentially limiting adaptation and population growth. But small populations stand to benefit from gene flow through genetic and demographic factors such as heterosis, added genetic variation, and the contribution of immigrants. Understanding the consequences of gene flow is a longstanding and unresolved challenge in evolutionary biology with important implications for conservation of biodiversity. My dissertation research addresses the importance of gene flow from evolutionary and conservation perspectives. In the first study of my dissertation I characterized natural patterns of gene flow and genetic diversity among remaining populations of Arkansas darters (Etheostoma cragini) in Colorado, an endemic to drying streams of the Great Plains, and a candidate for listing under the US Endangered Species Act. I found low diversity and high isolation, especially among sites with low water availability, highlighting this as a species that might eventually benefit from a well-managed manipulation of gene flow. I then turned to the Trinidadian guppy system to test the effects of gene flow using a model species for studying evolution in natural populations. My work capitalized on a series of introduction experiments that led to gene flow from an originally divergent population into native recipient populations. I was able to characterize neutral genetic variation, phenotypic variation, and population size in two native populations before the onset of gene flow. The goal of my first study using this system was to evaluate the level of gene flow and phenotypic divergence at multiple sites downstream from six introduction sites. I found that traits generally matched expectations for local adaptation despite extensive homogenization by gene flow at neutral loci, suggesting that high gene flow does not necessarily overwhelm selection. I followed up on this study by measuring many of the same traits in a common garden environment before and after gene flow to test whether gene flow caused genetically based changes in traits, and to evaluate the commonly held 'gene flow constrains divergence' hypothesis versus the 'divergence in the face of gene flow' hypothesis. I found that gene flow caused most traits to evolve, but whether those changes constrained adaptation depended on initial conditions of the recipient population. Finally, to link gene flow to changes in fitness and demography I conducted a large-scale capture-mark-recapture survey of two native populations beginning three months prior and following 26 months after upstream introductions took place. I genotyped all individuals from the first 17 months of this study to compare the relative fitness (survival and population growth rate) of native, immigrant, and hybrid guppies. In total this survey spanned 8-10 guppy generations and documented substantial increases in genetic variation and population size that could be attributed to gene flow from the introduction site. As a whole, the results from my research… Advisors/Committee Members: Funk, W. Chris (advisor), Angeloni, Lisa M. (committee member), Angert, Amy L. (committee member), Bailey, Larissa L. (committee member), Ghalambor, Cameron K. (committee member).

Subjects/Keywords: evolution; gene flow; population genetics; fitness; adaptation; mark-recapture

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Fitzpatrick, S. W. (2015). Testing the effects of gene flow on adaptation, fitness, and demography in wild populations. (Doctoral Dissertation). Colorado State University. Retrieved from http://hdl.handle.net/10217/167154

Chicago Manual of Style (16^th Edition):

Fitzpatrick, Sarah Warner. “Testing the effects of gene flow on adaptation, fitness, and demography in wild populations.” 2015. Doctoral Dissertation, Colorado State University. Accessed March 02, 2021. http://hdl.handle.net/10217/167154.

MLA Handbook (7^th Edition):

Fitzpatrick, Sarah Warner. “Testing the effects of gene flow on adaptation, fitness, and demography in wild populations.” 2015. Web. 02 Mar 2021.

Vancouver:

Fitzpatrick SW. Testing the effects of gene flow on adaptation, fitness, and demography in wild populations. [Internet] [Doctoral dissertation]. Colorado State University; 2015. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/10217/167154.

Council of Science Editors:

Fitzpatrick SW. Testing the effects of gene flow on adaptation, fitness, and demography in wild populations. [Doctoral Dissertation]. Colorado State University; 2015. Available from: http://hdl.handle.net/10217/167154

Virginia Tech

23. Ragheb, Erin Lorraine Hewett. Intrabrood Dominance Hierarchies in Juvenile Red-Cockaded Woodpeckers: The Role of Early Social Environment On Post-Fledging Survival and Natal Dispersal.

Degree: PhD, Biology, 2011, Virginia Tech

URL: http://hdl.handle.net/10919/77209

► Competition among individuals over shared resources reveals asymmetries in quality resulting in the formation of dominance hierarchies. These hierarchies act as a mechanism for social… (more)

▼ Competition among individuals over shared resources reveals asymmetries in quality resulting in the formation of dominance hierarchies. These hierarchies act as a mechanism for social selection by partitioning resources among group-living animals. The following chapters describe my dissertation research which investigates the factors contributing to competitive asymmetries among broodmates as well as the short- and long-term consequences of the early social environment for the cooperatively breeding red-cockaded woodpecker (Picoides borealis). My research revealed that fledgling red-cockaded woodpeckers form male-biased, linear dominance hierarchies. Among fledgling males,, high relative nestling condition strongly predicted fledgling dominance, and this condition–rank relationship persisted through independence. Male nestlings are slightly larger and heavier than females; however, the sexual size dimorphism in mass is only present in mixed-sex broods, suggesting that the subtle structural size advantage gives males a competitive advantage over their sisters. Conflict rates among siblings increased with decreasing targeted feeding rates, and dominant fledglings were able to secure more food from provisioning adults through scramble competition. First-year survival favored males over females and dominant males over subordinates. Females were more dispersive overall than males, and subordinate males were more likely to disperse than dominants. The social environment prior to fledging influenced male dispersal decisions and subordinates delayed dispersal in the spring in situations where all dominants died over the winter. The probability of delayed dispersal in females was higher for females raised without brood-mates in one of two populations included in a long-term demographic data analysis. The availability of breeding vacancies may explain the differences in female dispersal behavior according to social environment between these populations. This research contributes to a greater understanding of the relative contribution of intrinsic benefits versus extrinsic constraints as an influence on delayed dispersal decisions in red-cockaded woodpeckers. Inter- and intra-sexual social rank is correlated with individual access to natal food resources and the probability of first-year survival. The intrabrood variation in dispersal strategies driven by social rank is sufficient to regularly produce both dispersal strategies among males and provides additional support that delaying natal dispersal is the preferred strategy for males in this system. Advisors/Committee Members: Walters, Jeffrey R. (committeechair), Phillips, John B. (committee member), Hawley, Dana M. (committee member), Fraser, James D. (committee member).

Subjects/Keywords: delayed dispersal; benefits of philopatry; multistate mark-recapture; sibling rivalry

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Ragheb, E. L. H. (2011). Intrabrood Dominance Hierarchies in Juvenile Red-Cockaded Woodpeckers: The Role of Early Social Environment On Post-Fledging Survival and Natal Dispersal. (Doctoral Dissertation). Virginia Tech. Retrieved from http://hdl.handle.net/10919/77209

Chicago Manual of Style (16^th Edition):

Ragheb, Erin Lorraine Hewett. “Intrabrood Dominance Hierarchies in Juvenile Red-Cockaded Woodpeckers: The Role of Early Social Environment On Post-Fledging Survival and Natal Dispersal.” 2011. Doctoral Dissertation, Virginia Tech. Accessed March 02, 2021. http://hdl.handle.net/10919/77209.

MLA Handbook (7^th Edition):

Ragheb, Erin Lorraine Hewett. “Intrabrood Dominance Hierarchies in Juvenile Red-Cockaded Woodpeckers: The Role of Early Social Environment On Post-Fledging Survival and Natal Dispersal.” 2011. Web. 02 Mar 2021.

Vancouver:

Ragheb ELH. Intrabrood Dominance Hierarchies in Juvenile Red-Cockaded Woodpeckers: The Role of Early Social Environment On Post-Fledging Survival and Natal Dispersal. [Internet] [Doctoral dissertation]. Virginia Tech; 2011. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/10919/77209.

Council of Science Editors:

Ragheb ELH. Intrabrood Dominance Hierarchies in Juvenile Red-Cockaded Woodpeckers: The Role of Early Social Environment On Post-Fledging Survival and Natal Dispersal. [Doctoral Dissertation]. Virginia Tech; 2011. Available from: http://hdl.handle.net/10919/77209

University of Georgia

24. Bahr, Derek Lawrence. Population characteristics of Atlantic Sturgeon and Shortnose Sturgeon in the Savannah River Georgia.

Degree: 2016, University of Georgia

URL: http://hdl.handle.net/10724/34058

► Atlantic Sturgeon (Acipenser oxyrinchus oxyrinchus) and Shortnose Sturgeon (A. brevirostrum) once thrived along the Atlantic Coast of North America. Severe overfishing and habitat loss during… (more)

Subjects/Keywords: Atlantic Sturgeon; Shortnose Sturgeon; mark-recapture; recruitment; abundance; population assessment

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Bahr, D. L. (2016). Population characteristics of Atlantic Sturgeon and Shortnose Sturgeon in the Savannah River Georgia. (Thesis). University of Georgia. Retrieved from http://hdl.handle.net/10724/34058

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):

Bahr, Derek Lawrence. “Population characteristics of Atlantic Sturgeon and Shortnose Sturgeon in the Savannah River Georgia.” 2016. Thesis, University of Georgia. Accessed March 02, 2021. http://hdl.handle.net/10724/34058.

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

MLA Handbook (7^th Edition):

Bahr, Derek Lawrence. “Population characteristics of Atlantic Sturgeon and Shortnose Sturgeon in the Savannah River Georgia.” 2016. Web. 02 Mar 2021.

Vancouver:

Bahr DL. Population characteristics of Atlantic Sturgeon and Shortnose Sturgeon in the Savannah River Georgia. [Internet] [Thesis]. University of Georgia; 2016. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/10724/34058.

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

Council of Science Editors:

Bahr DL. Population characteristics of Atlantic Sturgeon and Shortnose Sturgeon in the Savannah River Georgia. [Thesis]. University of Georgia; 2016. Available from: http://hdl.handle.net/10724/34058

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

University of Georgia

25. Bednarski, Michael Stanley. Population dynamics of shortnose sturgeon, Acipenser brevirostrum, in the Altamaha River, Georgia.

Degree: 2014, University of Georgia

URL: http://hdl.handle.net/10724/27881

► The endangered shortnose sturgeon, Acipenser brevirostrum, occurs in large tidal rivers along the Atlantic coast of North America, ranging from the St. John River, Canada,… (more)

▼ The endangered shortnose sturgeon, Acipenser brevirostrum, occurs in large tidal rivers along the Atlantic coast of North America, ranging from the St. John River, Canada, southward to the St. Johns River, Florida. Throughout their range, populations have declined in response to habitat degradation, overfishing, nutrient enrichment, and incidental harvest. Though the status of most populations is uncertain, available evidence suggests that populations south of the mid-Atlantic bight are in particularly poor condition; presently, only three appear to exceed 1,000 individuals. Unfortunately, long-term quantitative studies of southern populations are completely lacking, resulting in critical information gaps that hinder effective restoration. The objectives of this study were to assess recent trends in 1) abundance, 2) population structure, 3) recruitment, 4) habitat suitability and 5) apparent survival in the Altamaha River, Georgia, a large, relatively unaltered southern river system. I used anchored monofilament gill and trammel nets to sample shortnose from summer 2004-2010. Individual fish were measured, assigned to a specific life stage, PIT tagged, and released. I used the Huggins closed-capture model to estimate abundance for each life stage. Changes in size-structure were examined using a non-parametric multiple comparison procedure. Linear regression was used to identify the influences of high flow duration on age-1 recruitment. Correlation analysis was used to analyze the influences of summertime flow on temperature. I used a Cormack-Jolly-Seber model to assess the effects of drought on apparent survival. I captured 1737 unique shortnose (72 within-year and 153 among-year recaptures). Estimates of total abundance varied from 1206-5551. Population structure shifted from juvenile-dominated in 2004-2007 to adult dominated in 2008-2010. Age-1 recruitment ranged from 30-2976 and was strongly correlated with sustained high flow during the young-of-year period. Decreases in summer flow were negatively correlated with temperature. Drought appeared to negatively effect apparent juvenile survival. Our results indicate that the Altamaha River hosts the largest and healthiest southern population. However, given the population’s accelerated life cycle, highly variable recruitment, and apparent sensitivity to variations in flow, we recommend that management focus on maintaining flows at levels likely to maximize long-term population persistence.

Subjects/Keywords: shortnose sturgeon; endangered; population dynamics; mark-recapture; flow

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Bednarski, M. S. (2014). Population dynamics of shortnose sturgeon, Acipenser brevirostrum, in the Altamaha River, Georgia. (Thesis). University of Georgia. Retrieved from http://hdl.handle.net/10724/27881

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):

Bednarski, Michael Stanley. “Population dynamics of shortnose sturgeon, Acipenser brevirostrum, in the Altamaha River, Georgia.” 2014. Thesis, University of Georgia. Accessed March 02, 2021. http://hdl.handle.net/10724/27881.

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

MLA Handbook (7^th Edition):

Bednarski, Michael Stanley. “Population dynamics of shortnose sturgeon, Acipenser brevirostrum, in the Altamaha River, Georgia.” 2014. Web. 02 Mar 2021.

Vancouver:

Bednarski MS. Population dynamics of shortnose sturgeon, Acipenser brevirostrum, in the Altamaha River, Georgia. [Internet] [Thesis]. University of Georgia; 2014. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/10724/27881.

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

Council of Science Editors:

Bednarski MS. Population dynamics of shortnose sturgeon, Acipenser brevirostrum, in the Altamaha River, Georgia. [Thesis]. University of Georgia; 2014. Available from: http://hdl.handle.net/10724/27881

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

Utah State University

26. Alexander, Peter D. Comparing Conventional and Noninvasive Monitoring Techniques for Assessing Cougar Population Size in the Southern Greater Yellowstone Ecosystem.

Degree: MS, Wildland Resources, 2016, Utah State University

URL: https://digitalcommons.usu.edu/etd/4712

► Cougars (Puma concolor) are difficult to census due to their large home ranges, low densities, and cryptic nature. The conventional “gold-standard” method for estimating… (more)

▼ Cougars (Puma concolor) are difficult to census due to their large home ranges, low densities, and cryptic nature. The conventional “gold-standard” method for estimating cougar abundance entails the capture and radio-tagging of individuals in a study area in an attempt to acquire a direct enumeration of animals in the population. While this method provides an accurate abundance estimate, it is logistically challenging and prohibitively expensive. Noninvasive survey techniques may offer the ability to both accurately and inexpensively monitor cougar populations. While noninvasive techniques have been used on cougar populations, there remain questions on their accuracy and comparative efficacy. We estimated the density of a cougar population in Northwest Wyoming using direct enumeration, and used this estimate as a reference with which to evaluate the accuracy and cost-effectiveness of three types of noninvasive surveys performed between 2010 and 2014. The noninvasive methods included two annual mark- recapture sessions of: 1) remote camera trapping, 2) winter hair-collection transects, and 3) scat detection dog surveys. We GPS tracked 13 adult cougars (males = 5, females = 8) over 3 annual periods (Sep 2010 – Sep 2013). We used proportional home range overlap to determine density in a 1,570 km² area. The average density was 0.82 cougars/100 km² (± 0.10 SD; n = 3 years). The remote camera surveys produced a mean density of 0.60 cougars/100 km² (n = 2 years; relative SD = 56.5%). The scat detection dog surveys produced an average density of 2.41 cougars/100 km² (n = 2 years; relative SD = 12.6%). The winter transects failed to produce a sample size large enough for an abundance estimate. Due to the inclusion of non-adults in the scat sampling, and the fact that the reference estimate was essentially a minimum count of adults, we believe that the scat-based estimate was more accurate than the lower estimate produced by remote cameras. Additional analysis indicated that individual identification of cougars in photographs may not be reliable, challenging the validity of photo-based abundance estimates of cougars. On a cost-per-detection basis, scat detection dogs were the most cost effective method (scat detection dogs = 341; remote cameras = 3,241; winter transects = 7,627). Advisors/Committee Members: Eric M. Gese, ;.

Subjects/Keywords: mark-recapture; noninvasive; population monitoring; puma concolor; Forest Management; Life Sciences

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Alexander, P. D. (2016). Comparing Conventional and Noninvasive Monitoring Techniques for Assessing Cougar Population Size in the Southern Greater Yellowstone Ecosystem. (Masters Thesis). Utah State University. Retrieved from https://digitalcommons.usu.edu/etd/4712

Chicago Manual of Style (16^th Edition):

Alexander, Peter D. “Comparing Conventional and Noninvasive Monitoring Techniques for Assessing Cougar Population Size in the Southern Greater Yellowstone Ecosystem.” 2016. Masters Thesis, Utah State University. Accessed March 02, 2021. https://digitalcommons.usu.edu/etd/4712.

MLA Handbook (7^th Edition):

Alexander, Peter D. “Comparing Conventional and Noninvasive Monitoring Techniques for Assessing Cougar Population Size in the Southern Greater Yellowstone Ecosystem.” 2016. Web. 02 Mar 2021.

Vancouver:

Alexander PD. Comparing Conventional and Noninvasive Monitoring Techniques for Assessing Cougar Population Size in the Southern Greater Yellowstone Ecosystem. [Internet] [Masters thesis]. Utah State University; 2016. [cited 2021 Mar 02]. Available from: https://digitalcommons.usu.edu/etd/4712.

Council of Science Editors:

Alexander PD. Comparing Conventional and Noninvasive Monitoring Techniques for Assessing Cougar Population Size in the Southern Greater Yellowstone Ecosystem. [Masters Thesis]. Utah State University; 2016. Available from: https://digitalcommons.usu.edu/etd/4712

27. Van Dellen, Amanda W. MOLT AND BREEDING ECOLOGY OF BLACK BRANT AT THE TUTAKOKE RIVER COLONY.

Degree: 2016, University of Nevada – Reno

URL: http://hdl.handle.net/11714/2348

► My dissertation addresses two fundamental components of avian biology: nesting ecology and molt dynamics. After the General Introduction (Chapter 1), the second chapter aims to… (more)

▼ My dissertation addresses two fundamental components of avian biology: nesting ecology and molt dynamics. After the General Introduction (Chapter 1), the second chapter aims to describe body mass dynamics of brood rearing female brant. In geese, molt follows the most energetically demanding period in the annual cycle, breeding. Our goal in this chapter is to assess the competing hypotheses: (1) mass dynamics during molt represent adaptive mass loss versus (2) mass dynamics reflect environmental constraint on the nutrient balance during molt. We used 16 years of data on Black Brant (Branta bernicla nigricans; hereafter brant) at the Tutakoke River Colony (TRC) in western Alaska, USA, during which we recorded mass and molt stage to assess the two hypotheses for mass dynamics during molt. We used growth rates of goslings accompanying their parents as an index of nutrient availability. Body mass at the beginning and end of molt varied substantially among years as did the rate of mass gain during the molt. Both results are inconsistent with the hypothesis that female brant have evolved to achieve a target body mass at the end of the molt. Our finding that rate of mass gain during the molt was positively associated with growth rates of goslings across years is consistent with the hypothesis that nutrient availability to molting females influenced their rate of mass gain. There are many disadvantages of living in high densities of conspecifics including greater rates of disease and parasite transmission, increased competition for food, increased aggressive interactions with conspecifics and greater rates of extra-pair copulations and fertilizations. Yet colonial breeding is a trait common to many species of birds found in nine of twenty-three bird orders. Therefore, coloniality must be beneficial to maintain this seemingly detrimental grouping behavior. For arctic nesting geese, coloniality may be an evolved behavioral strategy to compensate for nesting in open tundra where otherwise conspicuous individuals may benefit from predator swamping. In my third chapter, we studied the effect of nest density on nest success in colonial nesting brant over a 22 year period and explored how density dependent effects change during years of heavy arctic fox (Alopex lagopus) predation and flooding associated with extreme storm events. We found a positive impact of nest density on brant nest success especially in years with intense fox predation. This result supports the hypothesis that colonial nesting, at least in tundra habitats, developed as a defense mechanism to swamp mammalian predators.The evolution of colonial breeding has been attributed to enhanced food finding, improved predator defense and, most recently, as important centers for the distribution of social information. Decisions based on information from prior experience are expected to produce higher fitness than those made in the absence of information. In my fourth chapter, we used a multistate approach in Program MARK to estimate inter-annual movement probabilities… Advisors/Committee Members: Sedinger, James S. (advisor), Stewart, Kelley M. (committee member), Matocq, Marjorie D. (committee member), Albright, Thomas P. (committee member), Rollins, Kimberly (committee member).

Subjects/Keywords: Black Brant; capture mark recapture; molt; multistate; nest success

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Van Dellen, A. W. (2016). MOLT AND BREEDING ECOLOGY OF BLACK BRANT AT THE TUTAKOKE RIVER COLONY. (Thesis). University of Nevada – Reno. Retrieved from http://hdl.handle.net/11714/2348

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):

Van Dellen, Amanda W. “MOLT AND BREEDING ECOLOGY OF BLACK BRANT AT THE TUTAKOKE RIVER COLONY.” 2016. Thesis, University of Nevada – Reno. Accessed March 02, 2021. http://hdl.handle.net/11714/2348.

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

MLA Handbook (7^th Edition):

Van Dellen, Amanda W. “MOLT AND BREEDING ECOLOGY OF BLACK BRANT AT THE TUTAKOKE RIVER COLONY.” 2016. Web. 02 Mar 2021.

Vancouver:

Van Dellen AW. MOLT AND BREEDING ECOLOGY OF BLACK BRANT AT THE TUTAKOKE RIVER COLONY. [Internet] [Thesis]. University of Nevada – Reno; 2016. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/11714/2348.

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

Council of Science Editors:

Van Dellen AW. MOLT AND BREEDING ECOLOGY OF BLACK BRANT AT THE TUTAKOKE RIVER COLONY. [Thesis]. University of Nevada – Reno; 2016. Available from: http://hdl.handle.net/11714/2348

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

28. Sedinger, Ben. Population ecology of wood ducks in Nevada under experimental manipulation of harvest.

Degree: 2018, University of Nevada – Reno

URL: http://hdl.handle.net/11714/3345

► Wildlife populations are regulated by vital rates that are influenced by environmental conditions, demographic stochasticity and increasingly, anthropogenic effects. Management directed at specific vital rates,… (more)

▼ Wildlife populations are regulated by vital rates that are influenced by environmental conditions, demographic stochasticity and increasingly, anthropogenic effects. Management directed at specific vital rates, like per capita births or deaths, is often used as a tool to influence change in wildlife populations. I experimentally manipulated harvest regulations for wood ducks in Nevada, to study how harvest affects population level change in abundance and the mortality process. Additionally, I assessed how variation among individuals affects the mortality and recruitment processes. Harvest regulations are used to minimize detrimental effects of hunting on wild populations. In the second chapter I used capture-mark-reencounter data, from wood ducks that live along the Carson River near Fallon, NV, to estimate total population size of females during the spring (breeding) and juvenile females during autumn (juvenile production) to assess the effects of habitat conditions and harvest on change in the breeding population. Using spring snowpack, at the headwaters of the Carson River as a measure of habitat conditions, my results suggest habitat conditions are positively related to autumn age ratios and change in breeding population size the following year but not by direct recovery (harvest) rate. Based on these findings, I suggest future efforts to conserve waterfowl should focus the effects of climate change, which will influence precipitation patterns in the future. Harvest mortality occurs during autumn and winter months when waterfowl populations are at peak abundance, and has been shown to disproportionately select against lower quality individuals. Results from chapter two suggest harvest is does not affect population level change in abundance, which suggests that harvest mortality is compensated by natural mortality. This compensation can occur in the mortality process, the recruitment process, or both. In the third chapter I use seasonal capture-mark-reencounter data to investigate how harvest affects the mortality process. I also measured tarsus length during autumn and spring to investigate population level differences in structural body size before and after the hunting season to understand selection on body size during the hunting season. My results support the compensatory mortality hypothesis in wood ducks; with additional support for the individual heterogeneity hypotheses as a causal mechanism. I detected negative relationships between preseason mortality and total mortality during the hunting season for all age and sex classes, between harvest and non-harvest mortality during the hunting season, and between total mortality during the hunting season and mortality in the season following hunting mortality. Finally, I found a significant increase in tarsus length between summer and the following spring, indicating that smaller individuals had suffered disproportionate mortality during the fall and winter months. Management aimed at reducing anthropogenic influence on the mortality process… Advisors/Committee Members: Stewart, Kelley M. (advisor), Nicolai, Chris A (committee member), Hurtado, Paul J (committee member), Koons, David N (committee member), Smilanich, Angela M (committee member).

Subjects/Keywords: Capture-mark-recapture; Harvest; Population ecology; Wood duck

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Sedinger, B. (2018). Population ecology of wood ducks in Nevada under experimental manipulation of harvest. (Thesis). University of Nevada – Reno. Retrieved from http://hdl.handle.net/11714/3345

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):

Sedinger, Ben. “Population ecology of wood ducks in Nevada under experimental manipulation of harvest.” 2018. Thesis, University of Nevada – Reno. Accessed March 02, 2021. http://hdl.handle.net/11714/3345.

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

MLA Handbook (7^th Edition):

Sedinger, Ben. “Population ecology of wood ducks in Nevada under experimental manipulation of harvest.” 2018. Web. 02 Mar 2021.

Vancouver:

Sedinger B. Population ecology of wood ducks in Nevada under experimental manipulation of harvest. [Internet] [Thesis]. University of Nevada – Reno; 2018. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/11714/3345.

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

Council of Science Editors:

Sedinger B. Population ecology of wood ducks in Nevada under experimental manipulation of harvest. [Thesis]. University of Nevada – Reno; 2018. Available from: http://hdl.handle.net/11714/3345

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

North Carolina State University

29. Gosky, Ross Matthew. Bayesian Analysis and Matching Errors in Closed Population Capture Recapture Models.

Degree: PhD, Statistics, 2005, North Carolina State University

URL: http://www.lib.ncsu.edu/resolver/1840.16/3087

► Capture-Recapture models are used to estimate the unknown sizes of animal populations. When the population is closed, with constant size, during the study, eight standard… (more)

Subjects/Keywords: Bayesian; Model Selection; Matching Errors; mark-recapture; capture-recapture

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Gosky, R. M. (2005). Bayesian Analysis and Matching Errors in Closed Population Capture Recapture Models. (Doctoral Dissertation). North Carolina State University. Retrieved from http://www.lib.ncsu.edu/resolver/1840.16/3087

Chicago Manual of Style (16^th Edition):

Gosky, Ross Matthew. “Bayesian Analysis and Matching Errors in Closed Population Capture Recapture Models.” 2005. Doctoral Dissertation, North Carolina State University. Accessed March 02, 2021. http://www.lib.ncsu.edu/resolver/1840.16/3087.

MLA Handbook (7^th Edition):

Gosky, Ross Matthew. “Bayesian Analysis and Matching Errors in Closed Population Capture Recapture Models.” 2005. Web. 02 Mar 2021.

Vancouver:

Gosky RM. Bayesian Analysis and Matching Errors in Closed Population Capture Recapture Models. [Internet] [Doctoral dissertation]. North Carolina State University; 2005. [cited 2021 Mar 02]. Available from: http://www.lib.ncsu.edu/resolver/1840.16/3087.

Council of Science Editors:

Gosky RM. Bayesian Analysis and Matching Errors in Closed Population Capture Recapture Models. [Doctoral Dissertation]. North Carolina State University; 2005. Available from: http://www.lib.ncsu.edu/resolver/1840.16/3087

Louisiana State University

30. Miller, Cara Edina. Abundance trends and environmental habitat usage patterns of bottlenose dolphins (Tursiops truncatus) in lower Barataria and Caminada Bays, Louisiana.

Degree: PhD, Oceanography and Atmospheric Sciences and Meteorology, 2003, Louisiana State University

URL: etd-1113103-134239 ; https://digitalcommons.lsu.edu/gradschool_dissertations/2111

► The paucity of research into the environmental requirements, stock membership, abundance and residency patterns of bottlenose dolphins (Tursiops truncatus) in coastal Louisiana creates difficulty in… (more)

▼ The paucity of research into the environmental requirements, stock membership, abundance and residency patterns of bottlenose dolphins (Tursiops truncatus) in coastal Louisiana creates difficulty in understanding how local ecosystems and threats (such as fishery interactions, habitat degradation and pollution) affect populations. This study combined fine-scale environmental measurements and photo-identification techniques to describe patterns of habitat usage and abundance of bottlenose dolphins in lower Barataria Basin from June 1999 to May 2002. In addition I investigated the validity and limitations of using mark-recapture models to estimate abundance from cetacean photo-identification data. Bottlenose dolphins were present year-round in a wide range of water temperatures (10.9 – 33.9 ºC), dissolved oxygen levels (3.7 – 16.6 mg/L), salinities (11.7 – 31.5 psu), turbidity levels (1.4 – 34.0 NTU), distances from shore (3 – 800 m), and water depths (0.4 - 12.5 m). However, feeding activity was concentrated in a narrower range of conditions, 20 – 24 ºC water temperature, 6 – 9 mg/L of dissolved oxygen, turbidity values between 20 – 28 NTU, 200 – 500 m from shore, and depths of 4 – 6 m. Spatial mapping showed differences in the seasonal distribution of individuals and a tendency for feeding activity and larger group sizes to be concentrated in passes. Using distinctive natural markings present on dorsal fins, I identified 133 individual dolphins. Closed-population models were improved by inclusion of temporal and individual heterogeneity as sources of sighting variability and produced estimates of between 138 and 238 (95% CL range = 128 – 297) bottlenose dolphins for the study area. Analysis of Jolly-Seber model assumptions demonstrated the importance of ensuring cetacean surveys accurately represent temporal, geographic and demographic properties of a study population. In addition such factors as non-preferential image acquisition, group size, gender, behavior, stability and distinctiveness of natural markings, weather conditions and boat traffic must be considered. Evidence of a relatively closed Barataria Basin population agrees with current assumptions that bay bottlenose dolphin stocks are distinct from those found in deeper, offshore waters. Furthermore, the characterization of environmental usage patterns for this bay population strengthens adequate description and management of this relatively discrete Gulf of Mexico bottlenose dolphin stock.

Subjects/Keywords: population estimation; mark-recapture; program MARK; microhabitat

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Miller, C. E. (2003). Abundance trends and environmental habitat usage patterns of bottlenose dolphins (Tursiops truncatus) in lower Barataria and Caminada Bays, Louisiana. (Doctoral Dissertation). Louisiana State University. Retrieved from etd-1113103-134239 ; https://digitalcommons.lsu.edu/gradschool_dissertations/2111

Chicago Manual of Style (16^th Edition):

Miller, Cara Edina. “Abundance trends and environmental habitat usage patterns of bottlenose dolphins (Tursiops truncatus) in lower Barataria and Caminada Bays, Louisiana.” 2003. Doctoral Dissertation, Louisiana State University. Accessed March 02, 2021. etd-1113103-134239 ; https://digitalcommons.lsu.edu/gradschool_dissertations/2111.

MLA Handbook (7^th Edition):

Miller, Cara Edina. “Abundance trends and environmental habitat usage patterns of bottlenose dolphins (Tursiops truncatus) in lower Barataria and Caminada Bays, Louisiana.” 2003. Web. 02 Mar 2021.

Vancouver:

Miller CE. Abundance trends and environmental habitat usage patterns of bottlenose dolphins (Tursiops truncatus) in lower Barataria and Caminada Bays, Louisiana. [Internet] [Doctoral dissertation]. Louisiana State University; 2003. [cited 2021 Mar 02]. Available from: etd-1113103-134239 ; https://digitalcommons.lsu.edu/gradschool_dissertations/2111.

Council of Science Editors:

Miller CE. Abundance trends and environmental habitat usage patterns of bottlenose dolphins (Tursiops truncatus) in lower Barataria and Caminada Bays, Louisiana. [Doctoral Dissertation]. Louisiana State University; 2003. Available from: etd-1113103-134239 ; https://digitalcommons.lsu.edu/gradschool_dissertations/2111

Open Access Theses and Dissertations