Probing aggressive motivation in a cichlid fish
Probing aggressive motivation in a cichlid fish
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DOI：
10.1098/rsbl.2009.0526
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发表时间：
2009-12-23
期刊：
影响因子：
3.3
通讯作者：
Elwood, Robert
中科院分区：
文献类型：
--
作者：
Arnott, Gareth;Elwood, Robert
惊吓的持续时间提供了恢复先前活动的动机的反向测量。在这里，我们使用一种新的方法，其中一个定罪慈鲷鱼（Amatitlania nigrofasciata）的竞争对手独立的对手感到震惊。鱼被赋予不同的对手，并确定平均惊吓持续时间。这一平均值与平均使用高度升级的“正面活动”，如咬和正面显示，但不升级的横向显示或尾巴跳动。因此，惊吓持续时间是一个可靠的替代措施的最升级的组件的侵略性的相互作用。也就是说，它提供了个体鱼的攻击性的动机探针。战斗动机通常取决于战斗持续时间或失败者的生理成本，他们透露他们准备支付的成本。我们讨论了各种潜在的优势，动机探头比以前的措施，特别是关于赢家和输家和不同的时间在相互作用。
The duration of startles provides an inverse measure of motivation to resume the previous activity. Here, we use a novel method in which one convict cichlid fish (Amatitlania nigrofasciata) of a competing pair was startled independently of the opponent. Fish were given various opponents and the mean startle duration determined. This mean was negatively correlated with the mean use of highly escalated 'frontal activities' such as biting and frontal display, but not the less escalated lateral displays or tail beating. Thus the startle duration was a reliable surrogate measure of the most escalated components of aggressive interactions. That is, it provided a motivational probe for aggressiveness of individual fish. Fight motivation is often determined in terms of fight duration or physiological costs for losers, who reveal the costs they are prepared to pay. We discuss various potential advantages of the motivational probe over previous measures, particularly with respect to winners and losers and different times during the interactions.