Download or read book Food Habits of Mexican Spotted Owls in Arizona written by Joseph L. Ganey and published by . This book was released on 1992 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Dietary Overlap Between Sympatric Mexican Spotted and Great Horned Owls in Arizona written by Joseph L. Ganey and published by . This book was released on 2005 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: We estimated diet composition of sympatric Mexican spotted (Strix occidentalis lucida, n = 7 pairs of owls) and great horned owls (Bubo virginianus, n = 4 pairs) in ponderosa pine (Pinus ponderosa) - Gambel oak (Quercus gambelii) forest, northern Arizona. Both species preyed on mammals, birds, and insects; great horned owls also ate lizards. Mammals dominated the diet of both species. Mammals comprised 63 and 62% of all prey items identified in diets of spotted and great horned owls, respectively, and 94 and 95% of prey biomass. Both species primarily preyed on a few groups of small mammals. Observed overlap in diet composition between species (0.95) was greater than expected based on null models of diet overlap, and the size range of prey taken overlapped entirely. Mean prey mass was similar for both species (great horned owl, 47.0 ± 7.4 g [SE], n = 94 items; spotted owl, 40.1 ± 1.8 g, n = 1,125 items). Great horned owls consumed larger proportions of diurnally active prey than spotted owls, which primarily consumed nocturnally active mammals. Our results, coupled with a previous analysis showing that these owls foraged in the same general areas (Ganey and others 1997), suggests that they could compete for food resources, which are assumed to be limiting in at least some years. They may minimize the potential for resource competition, however, by concentrating foraging activities in different habitats (Ganey and others 1997) and by foraging at different times, when different suites of prey species are active.

Download or read book Preliminary Risk Assessment of the Mexican Spotted Owl Under a Spatially weighted Foraging Regime at the Los Alamos National Laboratory written by and published by . This book was released on 1997 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Northern Spotted Owl Management Plan in the National Forests CA OR WA written by and published by . This book was released on 1992 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Raptors of Arizona written by Richard L. Glinski and published by University of Arizona Press. This book was released on 2021-11-16 with total page 285 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thousands of birdwatchers come to Arizona each year seeking rare or intriguing species, and for those watching the skies the additional sighting of a bird of prey is a reward in itself. The Grand Canyon state boasts the most dramatic assortment of raptors in North America: hawks, eagles, falcons, kites, and owls, plus vultures and condors. Here can be found nearly all the raptor species of the continental United States and also established populations of species associated with Mexico, such as the Gray Hawk, Common Black-Hawk, Zone-tailed Hawk, and Whiskered Screech-Owl. Arizona's raptors are found in an unrivaled diversity of habitats, from saguaro cactus forests where tiny Elf Owls nest to the Vermilion Cliffs, where the gigantic California Condor was introduced in 1996. Yet many species live in habitats that are now jeopardized by degradation or development, making an understanding and appreciation of raptors crucial to their survival. The Raptors of Arizona brings together the knowledge and insights of 29 raptor and wildlife authorities who provide original information and syntheses on Arizona's 42 raptor species, with an emphasis on aspects of their natural history in Arizona. A chapter on each bird includes its description, a range map, and information on its distribution, habitat, life history, and status. Additional chapters cover conservation, habitats, where and when to watch raptors, and the sport of falconry. The book is enhanced by 42 full-color illustrations by Richard Sloan, one of the premier wildlife artists in North America, whose paintings were commissioned by the Arizona Wildlife Foundation specifically for this project. Co-published with the Arizona Game and Fish Department.

Download or read book General Technical Report PSW written by and published by . This book was released on 1978 with total page 756 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Dietary Overlap Between Sympatric Mexican Spotted and Great Horned Owls in Arizona written by Joseph L. Ganey and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Distribution and Habitat Ecology of Mexican Spotted Owls in Arizona written by Joseph L. Ganey and published by . This book was released on 1988 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Habitat Selection By Mexican Spotted Owls In Northern Arizona written by J. L. Ganey and published by . This book was released on 1994 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings of a Symposium on Oak Woodlands written by and published by . This book was released on 1997 with total page 756 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wildlife Review written by and published by . This book was released on 1992 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Condor written by and published by . This book was released on 1999 with total page 986 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Journal of Raptor Research written by and published by . This book was released on 2005 with total page 884 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effects of Fire on Mexican Spotted Owls in Arizona and New Mexico written by Jeffrey S. Jenness and published by . This book was released on 2000 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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Download or read book The Birds of North America written by and published by . This book was released on 1992 with total page 494 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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