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Article
Kristine L. Preston, Auteur ; Richard A. Redak, Auteur ; Michael F. Allen, Auteur ; John T. Rotenberry, AuteurMultiple processes are increasingly recognized as being responsible for species' extinctions. We evaluated population extinctions between 1930 and 1998 for the endangered Quino checkerspot (Euphydryas editha quino) butterfly relative to agricult[...]
Article
Cameron W. Barrows, Auteur ; John T. Rotenberry, Auteur ; Michael F. Allen, AuteurBioclimatic models aimed assessing a species' sensitivity to climate change incorporate mean shifts in climate variables; however the more acute threat to the persistence of species may result from increased frequency of extreme climatic events,[...]
Article
Cameron W. Barrows, Auteur ; Michael F. Allen, Auteur ; John T. Rotenberry, AuteurIn contrast to the body of work in more mesic habitats, few studies have examined boundary processes between natural and anthropogenic desert landscapes. Our research examined processes occurring at boundaries between a desert sand dune communit[...]
Article
Cameron W. Barrows, Auteur ; Kristine L. Preston, Auteur ; John T. Rotenberry, Auteur ; Michael F. Allen, AuteurEstimating historic distributions of species is a critical step in evaluating current levels of habitat loss, evaluating sites for potential restoration and reintroductions, and for conservation planning at a landscape scale. However historic di[...]
Article
Antonio Celis-Murillo, Auteur ; Jill L. Deppe, Auteur ; Michael F. Allen, AuteurPoint counts are the most frequently used technique for sampling bird populations and communities, but have well-known limitations such as inter- and intraobserver errors and limited availability of expert field observers. The use of acoustic re[...]
