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Full-Text Articles in Life Sciences
Long‐Distance Natal Dispersal Is Relatively Frequent And Correlated With Environmental Factors In A Widespread Raptor, Hanna M. Mccaslin, T. Trevor Caughlin, Julie A. Heath
Long‐Distance Natal Dispersal Is Relatively Frequent And Correlated With Environmental Factors In A Widespread Raptor, Hanna M. Mccaslin, T. Trevor Caughlin, Julie A. Heath
Biology Faculty Publications and Presentations
- Dispersal is a critical process influencing population dynamics and responses to global change. Long‐distance dispersal (LDD) can be especially important for gene flow and adaptability, although little is known about the factors influencing LDD because studying large‐scale movements is challenging and LDD tends to be observed less frequently than shorter‐distance dispersal (SDD).
- We sought to understand patterns of natal dispersal at a large scale, specifically aiming to understand the relative frequency of LDD compared to SDD and correlates of dispersal distances.
- We used bird banding and encounter data for American kestrels (Falco sparverius) to investigate the effects of …
Earlier Nesting By Generalist Predatory Bird Is Associated With Human Responses To Climate Change, Shawn H. Smith, Karen Steenhof, Christopher J.W. Mcclure, Julie A. Heath
Earlier Nesting By Generalist Predatory Bird Is Associated With Human Responses To Climate Change, Shawn H. Smith, Karen Steenhof, Christopher J.W. Mcclure, Julie A. Heath
Biology Faculty Publications and Presentations
- Warming temperatures cause temporal changes in growing seasons and prey abundance that drive earlier breeding by birds, especially dietary specialists within homogeneous habitat. Less is known about how generalists respond to climate-associated shifts in growing seasons or prey phenology, which may occur at different rates across land cover types.
- We studied whether breeding phenology of a generalist predator, the American kestrel (Falco sparverius), was associated with shifts in growing seasons and, presumably, prey abundance, in a mosaic of non-irrigated shrub/grasslands and irrigated crops/pastures. We examined the relationship between remotely-sensed normalized difference vegetation index (NDVI) and abundance of small …