Defining breeding habitat for painted redstarts, solitary vireos, and western wood-pewees in riparian areas of southeastern Arizona
AdvisorMorrison, Michael L.
MetadataShow full item record
PublisherThe University of Arizona.
RightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
AbstractDetermination of reproductive success in birds is important for understanding population dynamics, habitat quality, and features necessary for breeding. I incorporated behavioral observations, nest monitoring, and a reproductive ranking index (Vickery et al. 1992) to (1) categorize painted redstarts (Myioborus pictus), solitary vireos (Vireo solitarus plumbeus), and western wood-pewees (Contopus sordidulus) as breeders or nonbreeders, (2) locate nests, (3) monitor nest status, and (4) determine nest success and parasitism rates in 14 canyons of the Huachuca and Santa Rita mountains, Arizona during 1994-1995. I built logistic regression models for each species that correctly classified 58-68% of successful nesters from unsuccessful nesters, 62-85% of areas used by birds from random sites along the canyons, and at each nest, I correctly classified 39-60% of successful nest sites from unsuccessful nest sites and 87-95% of nest sites from nonoverlapping sites in areas of use. These models can be used to determine areas that would promote occupancy and successful nesting by these 3 species.
Degree ProgramGraduate College
Renewable Natural Resources