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Space Use And Home-Range Size Of Barn Owls On Santa Barbara Island, Sarah K. Thomsen, Caitlin E. Kroeger, Peter H. Bloom, A. Laurie Harvey
Space Use And Home-Range Size Of Barn Owls On Santa Barbara Island, Sarah K. Thomsen, Caitlin E. Kroeger, Peter H. Bloom, A. Laurie Harvey
Monographs of the Western North American Naturalist
Spatial overlap between predators and prey is often a key component of predator-prey interactions. Barn Owls (Tyto alba) are important predators of some species of conservation concern on the Channel Islands in southern California; therefore, understanding patterns of owl space use on these islands could provide insights on variations in predation risk that may be useful for conservation efforts of Barn Owl prey. In this study, our objectives were to investigate home-range size and space use by individual owls on Santa Barbara Island, which at 2.6 km2 is the smallest island within the Channel Islands National Park. …
The Subfamily Donaciinae In Utah (Insecta: Coleptera: Chrysomelidae), Shawn M. Clark, Andrew B. Olsen, Mark H. Goodman
The Subfamily Donaciinae In Utah (Insecta: Coleptera: Chrysomelidae), Shawn M. Clark, Andrew B. Olsen, Mark H. Goodman
Monographs of the Western North American Naturalist
Information is presented dealing with the western North American species of the subfamily Donaciinae, with emphasis on data from the state of Utah. Dichotomous keys and short diagnoses are provided to enable identification of genera and species. Previously published records from Utah are summarized. For each species, the overall North American distribution is summarized, and detailed records are given for Utah. Reported host plants for each species are also listed.