Sound from tuning fork triggers an orb-web spider Eriophora sagana dropping off the web.

(4.3MB, 00:01:10)
Shot Date: 2005/06
Shot Location: kokubunji, Tokyo, Japan

species
Eriophora sagana

Key Words
anti-predator defense
sound
cognition
spider

Kensuke NAKATA
2005/10/27 submitted

Animalia >Arthropoda >Arachnida >Araneomorphae >Araneidae >Eriophora >

Sound from tuning fork (440Hz) triggers an anti-predator defense (dropping off the web) of an orb-web spider Eriphora sagana without touching it. The spider seems to confound this sound with the sound from predator. The spider hangs with drag line for a while and climbs up the hub of web.

(Data No.momo051027es01b)

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