Factors Affecting Gerbil Foraging Behavior and Rates of Owl Predation

  title={Factors Affecting Gerbil Foraging Behavior and Rates of Owl Predation},
  author={Burt P. Kotler and Joel s. Brown and Oren Hasson},
We experimented on how illumination, habitat structure, and three different species of owls affected the foraging behavior of Gerbillus allenbyi and G. pyramidum, two gerbil species that coexist on sand dune habitats in the Negev Desert, Israel. We also tested how illumination and habitat structure affected rates of predation by owls on the two gerbil species. In a large aviary, we manipulated presence and absence of owls, owl species, presence and absence of illumination, and shrub cover. In… 

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In response to owls, all three gerbil species foraged less and increased their giving-up densities (GUDs) in food patches, and all three species had their lowest GUDs in foraging substrate.

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    Behavioral Ecology and Sociobiology
  • 2004
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Changes in foraging effort in two gerbil species correlate with habitat type and intra- and interspecific activity

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  • 1983
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