Female mating preferences in blind cave tetras Astyanax fasciatus (Characidae, Teleostei)
Female mating preferences in blind cave tetras Astyanax fasciatus (Characidae, Teleostei)
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DOI：
10.1163/156853906775133560
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发表时间：
2006-01-01
期刊：
影响因子：
1.3
通讯作者：
Schlupp, I
中科院分区：
文献类型：
--
作者：
Plath, M;Rohde, M;Schlupp, I
墨西哥四色金龟子进化出了各种或多或少有色和无眼的洞穴种群。在这里，我们研究了这种物种的不同种群中，无论是水面栖息地还是洞穴栖息地，雌性对大的雄性体型的偏好的演变。在大雄性和小雄性的视觉暗示之间进行选择时，表面形态的雌性和有眼睛的洞穴形态的雌性表现出强烈的对大雄性的偏好。当在黑暗中只呈现非视觉线索时，表面的雌性并不喜欢任何一种雄性。在研究的六个洞穴种群中，有眼洞穴形态的雌性和五个无眼洞穴种群之一的雌性表现出对大型雄性的偏好。显然，并不是所有的洞穴种群都进化出了非视觉交配偏好。我们讨论了非视觉交配选择的益处选择在非视觉交配偏好进化中的作用。
The Mexican tetra Astyanax fasciatus has evolved a variety of more or less color- and eyeless cave populations. Here we examined the evolution of the female preference for large male body size within different populations of this species, either surface- or cave-dwelling. Given the choice between visual cues from a large and a small male, females from the surface form as well as females from an eyed cave form showed a strong preference for large males. When only non-visual cues were presented in darkness, the surface females did not prefer either males. Among the six cave populations studied, females of the eyed cave form and females of one of the five eyeless cave populations showed a preference for large males. Apparently, not all cave populations of Astyanax have evolved non-visual mating preferences. We discuss the role of selection by benefits of non-visual mate choice for the evolution of non-visual mating preferences.