male-male fight in Uca lactea lactea

(13.2MB, 00:02:07)
Shot Date: 2002/06/26
Shot Location: Kagoshima Prefecture

species
Uca lactea lactea

Key Words
fiddler crab
Uca lactea
fight
waving


Daisuke MURAMATSU
2004/02/25 submitted



Animalia >Arthropoda >Malacostraca >Decapoda >ocypodidae >Uca >

Two males performed alternately before the grapple. This pattern of the waving (small circular вк larger circular waving) is not often seen. The grapple was occurred when their chelipeds were touched to each other. The intruder (right-hand bigger male) threw the opponent away from his burrow, but the intruder did not try to occupy the burrow.
*A part of this movie is used in "Waving behaviour of a fiddler crab, Uca lactea lactea" (momo030830ul01b).

(Data No.momo040225ul01b)

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