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首页> 外文期刊>Ethology >The Outcome of a Previous Social Interaction with a Same-sex Conspecific Affects the Behavior of Meadow Voles, Microtus pennsylvanicus
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The Outcome of a Previous Social Interaction with a Same-sex Conspecific Affects the Behavior of Meadow Voles, Microtus pennsylvanicus

机译：具有同性同种异性的先前社交互动的结果影响草地田鼠的行为

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摘要

In species where conspecifics compete for resources such as territories, remembering where a neighbor was previously encountered and the outcome of that interaction may give individuals advantages over nearby conspecifics. We used a two-phase experiment to test the hypothesis that female meadow voles, Microtus pennsylvanicus, who during the breeding season are territorial and agonistic toward one another, can use details of an encounter with another female in one location to later navigate nearby areas. During the encounter phase, pairs of females interacted for two minutes in one isolated section of a Y-maze; control females were placed in alone. Females were scored as either winners or losers. Winners displayed twice as many agonistic acts against their opponent. The test phase took place after a retention interval of one hour, 1d, or 1wk. Single females were returned to a clean and empty Y-maze and allowed to explore the entire apparatus for 15min. We recorded the amount of time spent in each section of the maze. After retention intervals of one hour and 7d winners, losers, and controls spent similar amounts of time in each section. However, after 24h, winners spent more time in the encounter section; losers and control females spent similar amounts of time in each section. The results suggest that meadow voles' memory of the details of a single encounter is influenced by the emotional valence attached to that event. The duration of memory may be associated with the establishment of territories by female meadow voles.
机译：在特定物种竞争诸如领土之类的资源的物种中，记住先前遇到过邻居的地方以及这种相互作用的结果可能会给个体带来优于附近特定物种的优势。我们使用了一个两阶段的实验来检验以下假设：雌性草地田鼠田鼠在繁殖季节彼此领土争斗，可以利用在某个位置与另一只雌性动物相遇的细节来导航附近区域。在相遇阶段，成对的雌性在Y型迷宫的一个孤立区域中互动了两分钟。对照雌性单独放置。女性被评为获胜者或失败者。优胜者对自己的对手表现出两倍的激动性行为。测试阶段是在保留时间为1小时，1天或1周后进行的。将单身女性放回干净且空旷的Y型迷宫中，让其探索整个装置15分钟。我们记录了迷宫各部分所花费的时间。在保留时间为1小时之后，获胜者，失败者和控制者在7d的每一部分中花费了相似的时间。但是，在24小时之后，获胜者将更多时间花在相遇部分;失败者和控制女性在每个部分中花费的时间相似。结果表明，草地田鼠对单个遭遇细节的记忆受该事件的情感价影响。记忆的持续时间可能与雌性草地田鼠建立领土有关。

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