Bystanders to contests between conspecifics are primed for increased aggression in male fighting fish
Bystanders to contests between conspecifics are primed for increased aggression in male fighting fish
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DOI：
10.1006/anbe.2003.2227
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发表时间：
2003-08-01
期刊：
影响因子：
2.5
通讯作者：
Paolino, AD
中科院分区：
文献类型：
--
作者：
Clotfelter, ED;Paolino, AD
我们进行了两个实验，我们允许一个男性斗鱼，斗鱼splendens，指定一个旁观者，观察对男性同种之间的侵略性比赛。另一只雄性（幼稚雄性）观察到一个空罐或两只非攻击性雄性，这取决于实验。在这些观察期后，我们立即允许旁观者和幼稚男性在中性区域进行互动。在这两个实验中，旁观者男性占主导地位的幼稚男性在相当数量的遭遇。旁观者男性进行显着更具侵略性的行为（显示，追逐和叮咬）比天真的男性。优势的差异并不是因为身体大小的偶然差异。这些研究结果表明，暴露于同类之间的侵略增加了旁观者男性斗鱼的侵略动机。我们简要地讨论了这种社会经验的影响，形成的统治阶层。(C)2003年由Elsevier Ltd代表动物行为研究协会出版。
We performed two experiments in which we allowed a male fighting fish, Betta splendens, designated a bystander, to observe aggressive contests between pairs of male conspecifics. Another male (naive male) observed an empty tank or two nonaggressive males, depending on the experiment. Immediately after these observation periods, we allowed the bystander and naive male to interact in a neutral area. In both experiments, bystander males were dominant over naive males in a significant number of the encounters. Bystander males performed significantly more aggressive behaviours (displays, chases and bites) than did naive males. Differences in dominance were not due to chance differences in body size. These findings demonstrate that exposure to aggression between conspecifics increases aggressive motivation in bystander male fighting fish. We discuss briefly the implications of such social experience on the formation of dominance hierarchies. (C) 2003 Published by Elsevier Ltd on behalf of The Association for the Study of Animal Behaviour.