Supplementary material 1 (Video). The aggressive behavior of marked worker toward an attached worker(7.1MB, 00:00:04)Shot Date: 2019/06/18 Shot Location: Sueyoshi Park, Okinawa, Japan | ||
 | species Diacamma sp. Key Words | |
|
Supplementary material 1 (Video). The aggressive behavior of marked worker toward an attached worker(7.1MB, 00:00:04)Shot Date: 2019/06/18 Shot Location: Sueyoshi Park, Okinawa, Japan | ||
| species Diacamma sp. Key Words | |
|
Animalia >Arthropoda >Insecta >Hymenoptera >Forimicidae >Diacamma >or Animalia >Unidentified >Unidentified >Unidentified >Unidentified >Unidentified >
Workers of Diacamma sp. behaved aggressively toward a non-nestmate worker (non-marked and tiled with a polyester thread) when they encountered near their own nest.
Below is the abstract from the article containing this video:
Aggression toward competitors is a useful measure of resource ownership and defense in animals, but aggressive behavior is costly. Therefore, it is predicted that animals will display aggression only when the expected benefit to individual fitness exceeds the expected cost. In ants, when conspecific individuals belonging to different colonies encounter each other, fighting occurs, seemingly facultatively. However, the context that influences the expression of ants' aggressive behavior, especially in the field, is still largely unknown. We investigated the plasticity of aggressiveness toward non-nestmates in Diacamma sp. from Japan. Our field experiment clearly showed that the same foragers that were aggressive toward non-nestmates in the vicinity of their nest changed to be non-aggressive at greater distances from the nest. Furthermore, the size of the colony to which the foragers belonged weakly but significantly affected their aggressiveness: foragers belonging to larger colonies behaved more aggressively toward non-nestmates. We discuss the possible adaptive significance of the observed facultative aggression between conspecific non-nestmates. Digital video images related to the article are available at http:// www.momo-p.com/showdetail-e.php?movieid=momo190618ds01a and http://www.momo-p.com/showdetail-e.php?movie id=momo190618ds02a.
Jumpei Uematsu, Masayuki Hayashi, Hiroyuki Shimoji, Michel-Olivier Laurent Salazar, and Kazuki Tsuji (2019).
Context¡¾dependent aggression toward non¡¾nestmates in the ant Diacamma sp. from Japan. J. Ethol. 10.1007/s10164-019-00611-8
(Data No.momo190618ds01a)
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