VARIATION IN FEMALE MATE PREFERENCE ACROSS A GRASSHOPPER HYBRID ZONE
VARIATION IN FEMALE MATE PREFERENCE ACROSS A GRASSHOPPER HYBRID ZONE
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DOI：
10.1046/j.1420-9101.1991.4020227.x
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发表时间：
1991-01-01
影响因子：
2.1
通讯作者：
RITCHIE, MG
中科院分区：
文献类型：
--
作者：
BUTLIN, RK;RITCHIE, MG
描述了一种研究人群中女性偏好变化的方法，该方法不受男性特征变化的混杂影响。 该方法适用于蝗虫（Chorthippus parallus）混合区样带中的 16 个种群。 不同人群之间的偏好存在显着差异。 在物种形成强化模型的背景下分析了这种变化的模式。 虽然数据确实表明该区域一侧的同配偏好相对于更远的种群有所增加，但这种模式在统计上无法与小于 1 公里的距离内偏好的突然转变区分开来。 我们认为，这些模式中的任何一种都意味着选择是根据混合区域中的女性偏好进行的。
A method for studying variation in female preference among populations free from the confounding effects of variation in male characters is described. This method is applied to sixteen populations in a transect across a hybrid zone in the grasshopper, Chorthippus parallelus. Significant variation in preference is revealed among populations. The pattern of this variation is analysed in the context of the reinforcement model of speciation. While the data do indicate an increased homogamic preference on one side of the zone relative to more distant populations, this pattern cannot be distinguished statistically from an abrupt transition in preference over a distance of less than 1 km. We argue that either of these patterns implies that selection operates on female preferences in the hybrid zone.