論文

基本情報

氏名 武山 智博
氏名(カナ) タケヤマ トモヒロ
氏名(英語) Takeyama Tomohiro
所属 生物地球学部 生物地球学科
職名 教授
researchmap研究者コード 6000026214
researchmap機関 岡山理科大学

題名

Duration of memory of dominance relationships in a group living cichlid

単著・共著の別

著者

Takashi H, Takeyama T, Jordan LA, Kohda M.

概要

Animal contests are costly and tend to escalate when rivals have similar competitive abilities. Individuals that remember dominance relationships with rivals may avoid repeated agonistic interactions and hence avoid the costs of repeated escalation of contests. However, it can be difficult to experimentally disentangle the effects of memory from those of loser effects (losers behaving subordinately due to prior defeats). Here, we test whether loser effects or individual memory mediate contest behaviour in the African cichlid, Julidochromis transcriptus. We find that on days 3 and 5 after initial contests, losers display subordinate behaviour to contest winners but not to novel contestants. However, this effect disappears after 7 days, at which time losers do not display subordinate behaviour to either rival. These results show that (1) this fish can recall a previously dominant contestant for up to 5 days and (2) as no subordinate displays were shown to the novel contestant, there are no evidences for loser effects in this species. Such short-term memory of past interactions may have broad significance in social species with repeated interactions.

発表雑誌等の名称

Naturwissenschaften

出版者

101

9

開始ページ

745

終了ページ

751

発行又は発表の年月

2014/09

査読の有無

有り

招待の有無

記述言語

英語

掲載種別

研究論文(学術雑誌)

ISSN

ID:DOI

https://doi.org/10.1007/s00114-014-1213-z

ID:NAID(CiNiiのID)

ID:PMID

URL

JGlobalID

arXiv ID

ORCIDのPut Code

DBLP ID