Stable-isotope profiles of feathers can reveal the location or habitat used by individual birds during the molting period. Heterogeneity in isotope profiles will reflect heterogeneity in molt locations, but also heterogeneity in breeding locations, because spatial heterogeneity in molt locations will be congruent with spatial heterogeneity in breeding locations in species with high connectivity...

Understanding biological behavior through computational modeling is an important and a challenging research topic which requires interdisciplinary corporation. Biological systems are fronted with similar problems computer vision aims to solve, namely, the control over visual sensors and the selective acquisition of information. In this thesis, interactions between gaze control and visual attent...

The pocket gopher (Thomomys bottae) and voles (Microtus spp.) cause significant economic damage to vineyards. In response, many growers have taken steps to attract Barn Owls (Tyto alba) to their properties to help keep these rodent populations in check. This research project investigated Barn Owl consumption of pocket gophers and voles in Central California vineyards in order to assess the effi...