The vocal behaviour of male European treefrogs (Hyla arborea): Implications for inter- and intrasexual selection
The vocal behaviour of male European treefrogs (Hyla arborea): Implications for inter- and intrasexual selection
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DOI：
10.1163/15685390252902319
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发表时间：
2002-01-01
期刊：
影响因子：
1.3
通讯作者：
Klump, GM
中科院分区：
文献类型：
--
作者：
Friedl, TWP;Klump, GM
呼叫和呼叫行为进行了研究，在人口中的个别标记的欧洲树蛙（树雨蛙），一个hylid青蛙的繁殖季节延长和列克交配系统。平均日气温为4.5 ℃，夜间水温为9 ℃，是夜间鸣叫活动的较低阈值。大合唱团开始调用较早，并表现出较长的夜间呼叫活动的持续时间比小合唱团。广告电话的时间属性主要由水温决定，这解释了高达88%的观测到的变化。优势频率主要由雄性体重决定，可解释20%的变异。内回合呼叫率，呼叫持续时间，脉冲周期，每次呼叫的脉冲数和主频率表现出很小的男性内的变化，但整体呼叫活动和每次呼叫回合的呼叫数在不同的记录相同的男性个体之间变化很大。不同的男性之间的统计学显着差异，发现内回合呼叫率，呼叫持续时间，每次呼叫回合的呼叫数，每次呼叫的脉冲数，和主频。观察到的呼叫属性的变化模式进行了讨论的背景下，可能的影响女性择偶和男性-男性识别。
Calls and calling behaviour were studied over two years in a population of individually marked European treefrogs (Hyla arborea), a hylid frog with a prolonged breeding season and a lek mating system. A mean daily air temperature of 4.5degreesC and a nightly water temperature of 9degreesC were found to represent lower thresholds for nightly calling activity. Large choruses started calling earlier and showed a longer nightly duration of calling activity than small choruses. Temporal properties of advertisement calls were determined mainly by water temperature, which explained up to 88% of the observed variation. Dominant frequency was determined mainly by male body weight, which explained 20% of the observed variance. Within-bout call rate, call duration, pulse period, number of pulses per call and dominant frequency showed little within-male variability, but overall call activity and the number of calls per call bout varied considerably between different recordings of the same individual males. Statistically significant differences between different males were found for within-bout call rate, call duration, number of calls per call bout, number of pulses per call, and dominant frequency. Observed patterns of variability in call properties are discussed in the context of possible implications for female mate choice and male-male recognition.