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    Novel predator recognition by Allenby's gerbil (Gerbillus andersoni allenbyi ): do gerbils learn to respond to a snake that can “see” in the dark?

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    Author
    Bleicher, Sonny S.
    Brown, Joel S.
    Embar, Keren
    Kotler, Burt P.
    Issue Date
    2016-05-13
    Keywords
    Gerbils
    Predator-Prey Interactions
    Foraging Games
    Constraint-breaking adaptations
    vipers
    convergent evolution
    biological invasions
    common-garden experiments
    prey naivete
    
    Metadata
    Show full item record
    Publisher
    TAYLOR & FRANCIS LTD
    Citation
    Novel predator recognition by Allenby's gerbil (Gerbillus andersoni allenbyi): do gerbils learn to respond to a snake that can “see” in the dark? 2016, 62 (3-4):178 Israel Journal of Ecology & Evolution
    Journal
    Israel Journal of Ecology & Evolution
    Rights
    © 2016 Informa UK Limited, trading as Taylor & Francis Group.
    Collection Information
    This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.
    Abstract
    Unlike desert rodents from North America, Allenby’s gerbil (Gerbillus andersoni allenbyi) from the Negev Desert, Israel has evolved with snakes that do not have heat-sensitive sensory pits that enhance night vision. Does this history affect their ability to assess and respond to a snake that has this ability? As a test, we exposed gerbils to risk of predation from various predators, including snakes, owls, and foxes. The snakes included the Saharan horned viper (Cerastes cerastes) and the sidewinder rattlesnake (Crotalus cerastes). The former snake lacks sensory pits and shares a common evolutionary history with the gerbil. The latter snake, while convergent evolutionarily on the horned viper, has sensory pits and no prior history with the gerbil. The gerbils exploited depletable resource patches similarly, regardless of snake species and moon phase. While the gerbils did not respond to the novel snake as a greater threat than their familiar horned viper, the gerbils were cognizant that the novel predator was a threat. In response to both snakes, giving-up densities (GUDs; the amount of food left in a resource patch following exploitation) of the gerbils were higher in the bush than open microhabitat. In response to moonlight, GUDs were higher on full than on the new moon. Based on GUDs, the gerbils responded most to the risk of predation from the red fox, least from the two snake species, and intermediate for the barn owl. Keywords:
    Note
    12 month embargo; Published online: 13 May 2016
    ISSN
    1565-9801
    2224-4662
    DOI
    10.1080/15659801.2016.1176614
    Version
    Final accepted manuscript
    Sponsors
    US-Israel Binational Science Foundation (BSF) [BSF-2008163]
    Additional Links
    https://www.tandfonline.com/doi/full/10.1080/15659801.2016.1176614
    ae974a485f413a2113503eed53cd6c53
    10.1080/15659801.2016.1176614
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