Dietary overlap between sympatric Mexican spotted and great horned owls in Arizona
Joseph L. Ganey, United States. Forest Service, Rocky Mountain Research Station (Fort Collins, Colo.)
U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Research Station, 2005 - Nature - 9 pages
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94 prey items B.S. degree Big brown bat biomass brush mouse Chipmunks Covington and Moore diet overlap dietary breadth diets of spotted dominated the diet Entsminger 2004 estimate diet composition estimates of diet food niche breadth Forsman Fringed myotis g for spotted Gambel oak Gotelli and Entsminger Gutierrez habitat horned owls Humboldt State University insect mass estimates Mean prey mass Merriam's shrew Mexican spotted owl Mexican woodrat Mogollon vole Mountain Research Station North America Northern Arizona null models number of prey observed FNB observed niche breadth observed overlap overlap between species overlap in diet owl species owls consumed owls in Arizona Pallid bat pocket gophers prey remains prey species preyed primarily proportions of prey radio-marked spotted randomization algorithm reviewed in Houston Rocky Mountain Research roost sites small mammals species of owls study area Block sympatric Mexican spotted ted owls Unidentified weighted mean white-footed mice White-footed mouse White-throated woodrat