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    Optimal Foraging in Barn Owls? Rodent Frequencies in Diet and Fauna

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    Subject
    Optimal Foraging; Barn Owls; Rodent Frequencies; Diet; Fauna
    Author
    Schwartz, Orlando A.; Bleich, Vernon C.
    Journal Title
    Scas: Bulletin of the Southern California Academy of Sciences
    Volume
    84
    Issue
    scas/vol84/iss1; 1
    Metadata
    Show full item record
    URI
    https://scholar.oxy.edu/handle/20.500.12711/10058
    Abstract
    Optimal foraging in Bam Owls? Rodent frequencies in diet and fauna by Orlando A. Schwartz and Vernon C. Bleich. Bull. Southern California Acad. Sci., 84(l):41-45, 1985. We determined the frequencies of prey in the diet of Bam Owls by identifying mammal crania contained in pellets, and we determined the frequencies of prey items in the fauna by live and snap trapping. Data from two sites in Southern California showed approximately equal portions of prey in the diet and in the fauna. Such agreement may be expected when the predator perceives a low quality habitat, or it might be due to efficient predation methods that eliminate some of the constraints that face foraging predators.
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