Climatic flux together with anthropogenic changes in land use and land cover pose major threats to wildlife, but our understanding of their combined impacts is limited. In arid southwestern North...
Birds
Type of Content: Reports, Papers, Journal Articles
This report summarizes my efforts to describe the distribution, abundance, habitat, and biogeographical relationships of breeding birds in montane vegetation communities in the Sky Islands and...
Type of Content: Reports, Papers, Journal Articles
A young pygmy-owl perched when the mother flys up and starts ripping apart a lizard and feeding it to her young.
Type of Content: Video
Resumen del Proyecto:
El Buho Manchado Mexicano (Strix occidentalis lucida) se distribuye en Sonora bajo condiciones adecuadas en canadas y elevaciones medias en montanas, can bosques de...
Type of Content: Reports, Papers, Journal Articles
As initially projected, this report would have been considerably larger. Fuller discussion of the systematics of many species would have been desirable and the inclusion of life-history...
Type of Content: Reports, Papers, Journal Articles
The pine-oak forests of the Sierra Madre Occidental, a mountain range in NW Mexico, have recently been recognized as an area of high endemism and biodiversity. Selective logging threatens three...
Type of Content: Reports, Papers, Journal Articles
Investigations of processes that drive animal distribution and abundance are often approached at one of two different scales and therefore focus on different processes. At local scales, animals...
Type of Content: Reports, Papers, Journal Articles
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