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    Remote touch prey-detection by Madagascar crested ibises Lophotibis cristata urschi

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    Issue Date
    2010
    Author
    Cunningham, Susan J.
    Castro, Isabel
    Jensen, Thomas
    Potter, Murray A.
    Subject
    BIRDS
    SENSE ORGANS
    VISION
    HEARING
    OLFACTION
    KIWIS
    ROBINS
    IBISES
    CHARADRIIFORMES
    APTERYGIFORMES
    FORAGING
    INTEGUMENT
    RESEARCH
    PREY
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    Journal title
    Journal of Avian Biology
    Volume
    41
    Issue
    3
    Begin page
    350
    End page
    353
    
    Metadata
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    DOI
    10.1111/j.1600-048X.2010.05138.x
    Alternative link
    http://doi.wiley.com/10.1111/j.1600-048X.2010.05138.x
    Abstract
    Birds that forage by probing must often rely on sensory systems other than vision to detect their buried prey. Such senses may include hearing (e.g. Australian magpies (Atramidae), American robins (Turdidae)) or chemical senses/olfaction (e.g. kiwi (Apterygidae) and some shorebirds (Scolopacidae)). Probe foraging kiwi and shorebirds are also able to use vibrotactile cues to locate prey buried in the substrate at some distance from their bill‐tips (‘remote touch’). These birds possess an organ consisting of a honey‐comb of sensory pits in bone of the bill‐tips, packed with mechanoreceptive nerve ending (Herbst corpuscles). Such a bill‐tip organ has recently also been described in ibises (Threskiornithinae), but its function not elucidated. We designed a foraging experiment presenting mealworm prey to three captive Madagascar crested ibises Lophotibis cristata urschi under a variety of trial conditions to discover whether they were using remote touch, mediated by their bill‐tip organ; chemosense/olfaction; or hearing to locate buried prey. The ibises were reliant on remote touch for prey detection – the first time this sensory system has been demonstrated for this group of birds. They did not appear to use hearing or chemical senses/olfaction to aid in prey detection.
    URI
    http://hdl.handle.net/20.500.12634/915
    Type
    Article
    Rights
    © 2010 The Authors
    ae974a485f413a2113503eed53cd6c53
    10.1111/j.1600-048X.2010.05138.x
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