DEEP CROAKS AND FIGHTING ASSESSMENT IN TOADS BUFO-BUFO
DEEP CROAKS AND FIGHTING ASSESSMENT IN TOADS BUFO-BUFO
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DOI：
10.1038/274683a0
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发表时间：
1978-01-01
期刊：
影响因子：
64.8
通讯作者：
HALLIDAY, TR
中科院分区：
文献类型：
--
作者：
DAVIES, NB;HALLIDAY, TR
动物经常通过传统的展示来解决争端。有人建议，这使参赛者能够评估对方的实力，而不必诉诸一场严重的战斗1。如果这是真的，那么我们可以预期自然选择会倾向于提供有关战斗潜力的可靠信息的显示器;容易被弱小个体模仿的评估信号不会是进化稳定的。通常比赛的结果将仅仅取决于谁是更大的，许多显示似乎涉及身体大小的评估1，4。在本文中，我们实验表明，雄性蟾蜍，蟾蜍，解决比赛的拥有女性通过发声，提供了一个可靠的信号的身体大小，因此战斗能力。
ANIMALS often settle disputes by means of conventional displays. It has been suggested that this enables the contestants to assess each other's strength without resorting to a serious fight1. If this is true then we would expect natural selection to favour displays which give reliable information about fighting potential; assessment signals that are easily mimicked by weak individuals will not be evolutionary stable2,3. Often the outcome of a contest will depend simply on who is the larger, and many displays seem to involve assessment of body size1,4. In this paper we show experimentally that male toads,Bufo bufo, settle contests for the possession of females by means of vocalisations that give a reliable signal of body size and hence of fighting ability.