Evolution of mate-choice copying: a dynamic model
Evolution of mate-choice copying: a dynamic model
复制标题
择偶复制的演变：动态模型
DOI：
10.1006/anbe.1997.0674
复制
发表时间：
1998
期刊：
影响因子：
2.5
通讯作者：
S. Stöhr
中科院分区：
文献类型：
--
作者：
S. Stöhr
配偶选择复制最近在几个物种中得到了证实。对于复制，有两种并不相互排斥的解释：它减少了抽样成本和/或配偶选择的错误。在孔雀鱼、孔雀鱼和黑松鸡中，年轻的雌性似乎最有可能模仿。因此，模仿可以教没有经验的女性有吸引力的男性看起来像什么。我开发了一个为期两年的动态模型，以调查在何种条件下，交配复制策略可能首先演变。一个纯粹的选择者的原始种群被假设，这是由一个突变的女性入侵，能够在她的第一个交配季节复制，从而立即提高她的能力，以评估男性质量。或者，她可以像非复制者一样等待并通过观察男性来学习，但会产生一些时间成本，或者选择，依靠自己的能力。复制的程度发生在这些突变，年轻，缺乏经验的女性增加了老年人的比例，有经验的女性在人口中，并减少时间，直到赛季结束。该模型表明，当年轻女性缺乏辨别力，需要学习高质量男性的样子时，择偶复制可能会进化。事实证明，雄性的质量对于复制进化并不重要，只要质量上有足够的差异，配偶选择就有意义。与以前的模型一样，时间限制是复制优于不复制的重要假设。版权所有1998动物行为研究协会。版权所有1998动物行为研究协会。
Mate-choice copying has recently been demonstrated in several species. Two, not mutually exclusive, explanations for copying have been proposed: it reduces sampling costs and/or error of mate choice. In guppies, Poecilia reticulata, and black grouse, Tetrao tetrix, young females seem most likely to copy. Therefore, copying may teach inexperienced females what attractive males look like. I developed a 2-year dynamic model, to investigate under which conditions a mate-copying strategy might first evolve. An original population of pure choosers was assumed, which was invaded by a mutant female, able to copy during her first mating season, thereby instantly improving her ability to assess male quality. Alternatively, she could either wait and learn by observing males, just as non-copiers may do, but incurring some time costs, or choose, relying on her own abilities. The degree to which copying occurred among these mutant, young, inexperienced females increased with an increasing proportion of old, experienced females in the population, and with decreasing time left until the end of the season. The model demonstrates that mate-choice copying may evolve, when young females are poor at discrimination and need to learn what high-quality males look like. Male quality proved to be unimportant for copying to evolve, as long as there are sufficient differences in quality for mate choice to be meaningful. As with previous models, time constraints are an important assumption for copying to be advantageous over non-copying. Copyright 1998 The Association for the Study of Animal Behaviour. Copyright 1998 The Association for the Study of Animal Behaviour.