Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 11 of 11 for “"metapopulation structure"”.
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Bull trout (Salvelinus confluentus) population structure and extent of hybridization with brook trout (S. fontinalis) across Alberta's Eastern Slopes
… (S. fontinalis), and 2) examine the genetic structure and diversity of bull trout across Alberta’s Eastern Slopes. Our results indicate that while hybridization outcomes vary by site, post-F1 hybridization was low. This suggests that a loss of demographic output to F1 hybrids is likely the …
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Population Dynamics of the Endangered Black-capped Vireo (Vireo atricapilla)
… demography across the landscape can result in a metapopulation structure and the recognition of source-sink dynamics could have far-reaching implications for wildlife management, particularly of endangered species. The black-capped vireo (Vireo atricapilla; vireo) is an endangered songbird that …
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GENETIC POPULATION STRUCTURE AND CONSERVATION OF BULL TROUT IN THE EAST FORK BITTERROOT RIVER DRAINAGE, MONTANA
… priorities. I evaluated the genetic population structure of bull trout in the East Fork Bitterroot River, Montana and identified which tributaries produced the majority of fluvial fish using genetic assignment. My data showed that populations in tributaries are genetically distinct from each …
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GENETIC POPULATION STRUCTURE AND CONSERVATION OF BULL TROUT IN THE EAST FORK BITTERROOT RIVER DRAINAGE, MONTANA
… priorities. I evaluated the genetic population structure of bull trout in the East Fork Bitterroot River, Montana and identified which tributaries produced the majority of fluvial fish using genetic assignment. My data showed that populations in tributaries are genetically distinct from each …
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Variability in red snapper otolith microchemistry among Gulf of Mexico regions
… interpopulation mixing, further supporting a metapopulation structure.
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The epidemiology of Lagos bat virus and henipaviruses in straw-coloured fruit bats (Eidolon helvum), using population genetics to infer population connectivity
… was used to understand the ways in which the structure and dynamics of fruit bat populations across Africa may affect the viral transmission dynamics within them. Given recent difficulties in using electronic positioning systems on E. helvum to track movement, genetic methods were proposed as …
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Conservation biology of the marsh fritillary butterfly Euphydryas aurinia
… aurinia was investigated, analysing its metapopulation dynamics, interactions with parasitoids and the efficacy of habitat restoration. Euphydryas aurinia has undergone a widespread national decline in recent years. This decline is quantified at a 10km scale. The distribution in 2020 was …
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Distribution and Abundance of American Martens and Cougars in the Black Hills of South Dakota and Wyoming
… martens, I modeled the population and spatial structure using data derived from a marten habitat-relation model a track-plate box population survey, a sample of radiocollared martens (n = 13), and a marten Habitat Suitability Index model. I estimated the resident adult population size of …
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Local and regional controls of brook trout (Salvelinus fontinalis) metapopulation dynamics within a complex Appalachian riverscape
… conservation focus due to their unique spatial structure and restricted thermal requirements. These life history characteristics make brook trout particularly vulnerable to major biodiversity threats, such as climate change and habitat loss. For appropriate conservation actions to be taken, it …
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Effects of fragmentation and invasion on ant communities
… populations, and also, force species into a metapopulation structure. Additionally, habitat fragmentation creates large amounts of degraded “edge” habitat generating difficult conditions for the survival of many species. These small and isolated populations can be subjected to species loss in …