Predation and the Evolution of a Stickleback (Gasterosteus)
Predation and the Evolution of a Stickleback (Gasterosteus)
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刺鱼（Gasterosteus）的捕食和进化
DOI：
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发表时间：
1969
期刊：
影响因子：
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通讯作者：
J. Mcphail
中科院分区：
文献类型：
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作者：
J. Mcphail
在北美西部，有一些腹骨动物的雄性婚礼颜色是深黑色，而不是正常的鲜红色。这样的黑人群体通常与红色群体异域，但在某些地区，这两种形式出现在相邻的群体中。雄性婚礼颜色和许多其他形态和生理特征的差异反映了黑人群体和红色群体之间的遗传差异。男性婚礼的颜色起到了部分隔离机制的作用。配偶选择实验表明，来自红种的雌性在红种和黑种雄性之间做出选择时，很少接受黑人。来自异地黑人种群的雌性也表现出对红色雄性的偏好，但来自杂交区上游的黑人种群的雌性似乎是随机交配的。异地和共处的黑人雌性种群在配偶偏好上的显著差异是加强雄性颜色作为一种隔离机制的证据。赛尔..。
In western North America there are populations of Gasterosteus in which the male nuptial colour is a deep black rather than the normal bright red. Such black populations are usually allopatric to red populations, but in some areas the two forms occur in adjacent sympatry.The difference in male nuptial colour and a number of other morphological and physiological traits reflect genetic differences between black and red populations. Male nuptial colour functions as a partial isolating mechanism. Mate selection experiments indicate that females from red populations rarely accept a black male when they have a choice between a red or black male. Females from allopatric black populations also show a preference for red males, but females from black populations immediately upstream from a hybrid zone appear to mate randomly. The significant difference in mate preference between allopatric and sympatric populations of black females is evidence for the reinforcement of male colour as an isolating mechanism. The sele...