Abstract:
:Prior work in our lab has shown that an expanding image on a computer screen elicits a hiding response in the Caribbean terrestrial hermit crab (Coenobita clypeatus). We conducted two experiments to identify what properties of the expanding stimulus contribute to its effectiveness as a visual threat. First we found that an expanding geometric star evoked a strong hiding response while a contracting or full-sized stationary star did not. A second experiment revealed that the more quickly the stimulus expanded the shorter the latency to hide. These findings suggest that the anti-predator response to looming stimulus relies heavily on visual cues relating to the manner of approach. The simulated visual threat on a computer screen captures key features of a real looming object that elicits hiding behavior in crabs in the wild.
journal_name
PeerJjournal_title
PeerJauthors
Shragai T,Ping X,Arakaki C,Garlick D,Blumstein DT,Blaisdell APdoi
10.7717/peerj.4058subject
Has Abstractpub_date
2017-11-30 00:00:00pages
e4058issn
2167-8359pii
4058journal_volume
5pub_type
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