Individual voice recognition in a territorial frog (Rana catesbeiana)
Individual voice recognition in a territorial frog (Rana catesbeiana)
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DOI：
10.1098/rspb.2002.2041
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发表时间：
2002-07-22
影响因子：
4.7
通讯作者：
Gerhardt, HC
中科院分区：
文献类型：
--
作者：
Bee, MA;Gerhardt, HC
一些领土动物对在其通常领土内的熟悉领土邻居表现出低水平的侵略性，但对新地点和不熟悉的个体表现出高水平的侵略性。在这里，我们报告的结果，从现场回放研究，调查是否领土男性的北美牛蛙（牛蛙）可以区分模拟邻居和陌生人的声音信号在没有上下文线索与特定位置。重复暴露于合成牛蛙呼叫从一个特定的位置，受试者的反应显着不那么积极的一个熟悉的电话，与一个不熟悉的，当这两个电话是从熟悉的和新的位置广播，表明牛蛙可以识别邻居的电话独立的上下文线索提供的方向邻居的领土。受试者对来自熟悉或陌生地点的不熟悉电话广播做出同样积极的反应，这表明他们可以将不熟悉的电话视为陌生人的电话，无论陌生人在哪里遇到。总之，这两个结果提供了证据，表明青蛙具有识别个人声音的能力。
Some territorial animals display low levels of aggression towards a familiar territorial neighbour in its usual territory, but exhibit high levels of aggression towards neighbours in novel locations and unfamiliar individuals. Here, we report results from a field playback study that investigated whether territorial males of the North American bullfrog (Rana catesbeiana) could discriminate between the acoustic signals of simulated neighbours and strangers in the absence of contextual cues associated with a specific location. Following repeated exposures to synthetic bullfrog calls from a particular location, subjects responded significantly less aggressively to a familiar call, compared with an unfamiliar one, when both calls were broadcast from familiar and novel locations, indicating that bullfrogs could recognize a neighbour's calls independently of the contextual cues provided by the direction of the neighbour's territory. Subjects responded equally aggressively to unfamiliar calls broadcast from either a familiar or a novel location, which indicates that they could perceive unfamiliar calls as those of a stranger, regardless of where the stranger was encountered. Together, these two results provide evidence that a frog possesses a capacity for individual voice recognition.