Non-agonistic familiarity decreases aggression in male Turkish hamsters, Mesocricetus brandti.
Non-agonistic familiarity decreases aggression in male Turkish hamsters, Mesocricetus brandti.
复制标题
非攻击性熟悉会降低雄性土耳其仓鼠 Mesocricetus Brandti 的攻击性。
DOI：
10.1016/j.anbehav.2008.10.012
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发表时间：
2009-02
期刊：
影响因子：
2.5
通讯作者：
Johnston, Robert E.
中科院分区：
文献类型：
--
作者：
delBarco-Trillo, Javier;McPhee, M. Elsbeth;Johnston, Robert E.
关键词：
在实验室研究中，仓鼠（Mesocricetus spp.）表现出强烈的雄性-雄性攻击，从而使它们成为研究攻击的功能和机制基础的极好模型系统。在一项对金仓鼠（M。然而，在野外，少数记录在案的雄性之间的相互作用并不具有高度的攻击性。因此，我们测试的假设，熟悉调节攻击仓鼠。以往的研究大多是通过对抗性的互动使不熟悉的个体变得熟悉。在这里，我们允许雄性土耳其仓鼠（M。brandti）通过将它们安置在一起但由金属丝网隔板分开（因此是“非竞争性”的熟悉）来彼此熟悉。我们发现，虽然非竞争性的熟悉并没有减少调查熟悉的男性，它确实减少了战斗的发生，战斗的次数，战斗时间的百分比，它也增加了潜伏期战斗。这些结果是一致的“亲爱的敌人”的假设，它提出，男性对熟悉的邻居比不熟悉的同种，因为以前的相互作用提供了足够的信息，使其他个人严重的侵略不必要的侵略。最重要的是，我们的研究结果表明，通过非对抗性互动获得的关于其他个体的信息降低了与这些个体战斗的频率和强度。我们的结论是，从实验室研究的结果侵略，不考虑的那种社会互动，个人在性质上应谨慎解释。
In laboratory studies, hamsters (Mesocricetus spp.) exhibit intense male-male aggression, thus making them an excellent model system for studies of the functional and mechanistic bases of aggression. In a field study of golden hamsters (M. auratus) in the wild, however, the few documented male-male interactions were not highly aggressive. Thus, we tested the hypothesis that familiarity modulates aggression in hamsters. Previous investigations of the effects of familiarity on aggression have mostly involved familiarization of unfamiliar individuals through agonistic interactions. Here we allowed male Turkish hamsters (M. brandti) to become familiar with each other by housing them together but separated by a wire-mesh partition (thus ‘non-agonistic’ familiarity). We found that although non-agonistic familiarity did not decrease investigation of the familiar male, it did decrease the occurrence of fights, the number of fights, and the percentage of time fighting; it also increased the latency to fight. These results are consistent with the ‘dear enemy’ hypothesis, which proposes that males are less aggressive toward familiar neighbors than to unfamiliar conspecifics because previous interactions have provided enough information about the other individual to render severe aggression unnecessary. Most importantly, our results suggest that information gained about other individuals through non-agonistic interactions decrease the frequency and intensity of fights with those individuals. We conclude that results from laboratory studies on aggression that do not consider the kind of social interactions that individuals have in nature should be interpreted with caution.
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