Female preference for multiple condition–dependent components of a sexually selected signal
Female preference for multiple condition–dependent components of a sexually selected signal
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女性对性选择信号的多种条件依赖性成分的偏好
DOI：
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发表时间：
2004
期刊：
影响因子：
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通讯作者：
M. Brinkhof
中科院分区：
文献类型：
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作者：
H. Scheuber;A. Jacot;M. Brinkhof
理论模型解释了多线索配偶选择决策的演变，从利益之间的权衡，由于改善评估潜在的配偶和成本与使用多个信号。然而，这些基本假设缺乏实证支持。在田间蟋蟀（Gryllus campestris），我们实验研究了女性的偏好变化的两个关键组成部分的男性呼叫歌曲：载波频率和啁啾率。先前的研究已经揭示了载波频率和啁啾率作为男性质量的可靠指标，分别反映了过去的状况和当前的状况。在双向选择实验中，女性显着偏好测试歌曲的载波频率较低和较高的啁啾率，但优先载波频率的啁啾率。因此，交配质量的静态长期指标的权重大于动态短期指标。因此，我们的研究结果表明，女性整合信息，从独立的条件依赖的线索，以区分可用的男性在择偶决策。
Theoretical models explain the evolution of multi–cue mate–choice decisions from a trade–off between benefits owing to improved assessment of potential mates and costs linked to the use of multiple signals. However, empirical support for these basic assumptions is lacking. In field crickets (Gryllus campestris) we experimentally investigated the female preference to variation in two key components of the male calling song: carrier frequency and chirp rate. Previous studies have revealed carrier frequency and chirp rate as reliable indicators of male quality that reflect past condition and current condition, respectively. In a two–way choice experiment, females significantly preferred test songs of lower carrier frequency and higher chirp rate, but prioritized the carrier frequency over the chirp rate. Hence, the static long–term indicator of mate quality was weighted more than the dynamic short–term one. Our results thus indicate that females integrate information from independent condition–dependent cues to discriminate between available males in mate–choice decisions.