Non-parallel coevolution of sender and receiver in the acoustic communication system of treefrogs
Non-parallel coevolution of sender and receiver in the acoustic communication system of treefrogs
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DOI：
10.1098/rspb.2002.2092
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发表时间：
2002-09-07
影响因子：
4.7
通讯作者：
Bush, SL
中科院分区：
文献类型：
--
作者：
Schul, J;Bush, SL
近缘种的广告叫声在数量特征上常常不同，如信号单位的重复率。这些差异在物种识别中很重要。目前的信号-接收器协同进化模型预测了接收器识别呼叫的机制的两种可能的进化模式：（i）经典的性选择模型（Fisher过程，良好基因/间接利益，直接利益模型）预测近亲使用定性相似的信号识别机制，调整到不同的呼叫参数值;以及（ii）接收者偏差模型（隐藏偏好、预先存在的偏差模型）预测，如果兄弟物种使用不同的信号识别机制，则祖先机制的证据将在衍生物种中持续存在，并且预先存在的偏差的证据将在祖先物种中被检测到。我们描述了定性不同的呼叫识别机制，在同胞物种的树蛙。而Hyla chrysoscelis使用脉冲频率来识别雄性叫声，Hyla versicolor使用脉冲持续时间和间隔持续时间的绝对测量。我们没有发现任何隐藏偏好或预先存在的偏见的证据。结果进行了比较与类似的数据从Katydids（Tettigonia属）。在这两个类群，数据没有得到充分的解释，目前的信号接收器协同进化模型。
Advertisement calls of closely related species often differ in quantitative features such as the repetition rate of signal units. These differences are important in species recognition. Current models of signal-receiver coevolution predict two possible patterns in the evolution of the mechanism used by receivers to recognize the call: (i) classical sexual selection models (Fisher process, good genes/indirect benefits, direct benefits models) predict that close relatives use qualitatively similar signal recognition mechanisms tuned to different values of a call parameter; and (ii) receiver bias models (hidden preference, pre-existing bias models) predict that if different signal recognition mechanisms are used by sibling species, evidence of an ancestral mechanism will persist in the derived species, and evidence of a pre-existing bias will be detectable in the ancestral species. We describe qualitatively different call recognition mechanisms in sibling species of treefrogs. Whereas Hyla chrysoscelis uses pulse rate to recognize male calls, Hyla versicolor uses absolute measurements of pulse duration and interval duration. We found no evidence of either hidden preferences or pre-existing biases. The results are compared with similar data from katydids (Tettigonia sp.). In both taxa, the data are not adequately explained by current models of signal-receiver coevolution.