Close-quarters effect of frogs' fleeing against a snake

(0.9MB, 00:00:32)
Shot Date: 2010/11/17
Shot Location: Kyoto University, Kitashirakawaoiwakecho, Sakyo, Kyoto, Japan

species
Pelophylax nigromaculatus, Elaphe quadrivirgata

Key Words
close-quarters effect
escape behavior
anti-predator tactics
predator-prey interaction


Nishiumi Nozomi
2019/09/24 submitted


Animalia >Chordata >Amphibia >Anura >Ranidae >Unidentified >
or
Animalia >Unidentified >Unidentified >Unidentified >Unidentified >Unidentified >

Close-quarters effect is defined as a defensive function that is caused by the sudden initiation of the prey escape at a close distance to predator. In this video, abrupt fleeing of a frog (Pelophylax nigromaculatus) that was initiated at a close distance frightened a snake (Elaphe quadrivirgata) that had been searching for the frog.
This event was recorded in Nishiumi and Mori (2015). See this paper for details.

Nishiumi, N., Mori, A. 2015. Distance-dependent switching of anti-predator behavior of frogs from immobility to fleeing. J. Ethol. 33: 117-124. doi:10.1007/s10164-014-0419-z.

(Data No.momo190922pn01b)

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