Recognition of competitors by male golden hamsters
Recognition of competitors by male golden hamsters
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DOI：
10.1016/j.physbeh.2004.03.001
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发表时间：
2004-06-01
影响因子：
2.9
通讯作者：
Johnston, RE
中科院分区：
文献类型：
--
作者：
Petrulis, A;Weidner, M;Johnston, RE
和许多动物一样，金仓鼠在遭遇攻击后会形成支配/从属关系。我们研究了雄性动物在面对熟悉的和不熟悉的雄性刺激动物时，它们的行为反应是否会有所不同。在实验1中，战斗的男性胜利者或失败者探索一个竞技场，竞技场中有一个封闭的刺激动物，这个刺激动物要么是熟悉的，要么是陌生的，要么是赢了，要么是输了。与占主导地位的雄性相比，失败者与受刺激的雄性在一起的时间更短，对它们的调查也更少。失败者也比胜利者表现出更高水平的伸展姿势（表明风险评估），他们对熟悉的胜利者的反应比对不熟悉的胜利者表现出更多的逃跑和移动，表明他们对输给的男性的认识。在实验2中，失败者的气味对熟悉的胜利者的气味的影响比对不熟悉的胜利者的气味的影响要小。因此，雄性仓鼠似乎利用对前对手气味的熟悉程度来适应性地调节它们对社会威胁变化的反应。(C) 2004爱思唯尔公司版权所有。
Golden hamsters, like many animals, form dominant/subordinate relationships after aggressive encounters. We examined whether behavioral responses by males that won or lost fights would differ toward familiar and unfamiliar male stimulus animals. In Experiment 1, male winners or losers of fights explored an arena containing a confined stimulus animal that was either familiar or novel and had either won or lost a fight. Compared to dominant males, losers spent less time in proximity to stimulus males and investigated them less. Losers also displayed higher levels of stretch-attend postures (indicative of risk assessment) than winners, and they showed more escape and locomotion in response to familiar winners than to unfamiliar winners, indicating recognition of the male that they had lost to. In Experiment 2, losers scent marked less to the odors of a familiar winner than to those of an unfamiliar winner. Thus, male hamsters appear to use familiarity with a former opponent's odors to adaptively regulate their responses to variations in social threat. (C) 2004 Elsevier Inc. All rights reserved.