Communicative significance of the two-note call of the treefrogEleutherodactylus coqui
Communicative significance of the two-note call of the treefrogEleutherodactylus coqui
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树蛙两音叫声的交际意义
DOI：
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发表时间：
1978
期刊：
影响因子：
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通讯作者：
R. R. Capranica
中科院分区：
文献类型：
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作者：
P. Narins;R. R. Capranica
摘要雄性树蛙，Eleutherodactylus coqui，在波多黎各岛产生一个两个音符的"Co-Qui"广告呼吁在整个一年的大部分时间。为了确定两个音符在该物种的呼叫中的交际意义，在雨林中向呼叫的雄性广播自然和合成声刺激. 1.当自然或合成的两个音符呼叫的回放强度超过阈值水平时，雄性应答时仅发出"Co"音符，约42%的时间. 2.将刺激音符序列颠倒，即"Qui-Co"，3.单独播放"Qui"音对雄鸟鸣叫行为的影响相对较小; 4.单独播放"Co"音与完整的自然鸣叫对雄鸟鸣叫行为的影响相当; 5."Co"音的持续时间和频率含量与"Co"音的持续时间和频率含量有关。自然鸣叫中的两个音符最能唤起雄性的一个音符反应。
SummaryMale treefrogs,Eleutherodactylus coqui, on the island of Puerto Rico produce a two-note “Co-Qui” advertisement call throughout most of the year. To determine the communicative significance of two notes in this species' call, natural and synthetic acoustic stimuli were broadcast to calling males in the rain forest.1.When the playback intensity of the natural or synthetic two-note call exceeds a threshold level, males answer by uttering just a “Co” note about 42% of the time.2.Reversing the stimulus note sequence, namely “Qui-Co”, is as effective as the normal “Co-Qui” sequence in evoking the male's one-note response.3.Playback of the “Qui” note alone has relatively little effect on male calling behavior.4.The “Co” note presented alone is equally effective as the complete natural call in evoking the one-note response from a male.5.The duration and frequency content of the “Co” note in a natural call are optimal in evoking a male's one-note response.