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Full-Text Articles in Life Sciences
Individual And Population Responses To Hydrologic Variability In A Headwater Stream Salamander, Madaline Cochrane
Individual And Population Responses To Hydrologic Variability In A Headwater Stream Salamander, Madaline Cochrane
Graduate Student Theses, Dissertations, & Professional Papers
Understanding how organisms respond to environmental variability is a central goal in ecology – a goal made even more pressing by the herculean challenge global climate change presents to all organisms. Climate change is increasing the frequency and intensity of floods and droughts, which will likely have disproportionate effects on freshwater organisms. Many stream-associated species have multi-stage life histories. However, we lack an empirical understanding of life history and movement responses of these organisms to hydrologic disturbances, and how these responses may influence demographic rates. In my dissertation, I used a combination of growth, developmental, movement, and demographic data to …
Habitat Quality Influences Migratory Strategy Of Female White-Tailed Deer, Charles R. Henderson Jr.
Habitat Quality Influences Migratory Strategy Of Female White-Tailed Deer, Charles R. Henderson Jr.
Graduate Student Theses, Dissertations, & Professional Papers
Partial migration is a life history strategy that is common for ungulate species living in seasonal environments. One factor that influences the decision to migrate by ungulates is access to high quality habitat. We evaluated the influence of access to winter habitat of high quality on the probability of an individual migrating, the differences in seasonal habitat use between and within migratory and resident classes of deer, and the effects of this decision on the survival of female white-tailed deer. We hypothesized that deer with home ranges of relatively low quality in winter would have a relatively high probability of …