The design and production of a sexual signal:: Hoods and hood building by male fiddler crabs Uca musica
The design and production of a sexual signal:: Hoods and hood building by male fiddler crabs Uca musica
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DOI：
10.1163/156853901753287145
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发表时间：
2001-09-01
期刊：
影响因子：
1.3
通讯作者：
Goshima, S
中科院分区：
文献类型：
--
作者：
Christy, JH;Backwell, PRY;Goshima, S
求偶的雄性招潮蟹有时会在雌性招潮蟹前来交配的洞穴入口处建造罩子。女性差异导向洞穴与罩，从而显示出对罩建设者的配偶偏好。在这里，我们描述如何这种模式的性选择可能会影响引擎盖的设计和建设。较大的男性通常建立更大，但不是更高的兜帽。体型较小的雄性可能会建造相对较高的兜帽，以便对所有体型的雌性都很显眼，而建造或其他成本可能会限制兜帽的高度。大多数雄性在每两周一次的生殖周期中只建造一个兜帽，通常是在许多雌性选择配偶的那一天，它们在雌性开始寻找配偶之前完成了建造。这两种模式都符合基于将理想自由理论应用于性信号时机的预测。性选择可能有利于更频繁的引擎盖建设，但引擎盖建设的时机似乎是最佳的。
Courting male fiddler crabs Uca musica sometimes build hoods at the entrances of their burrows to which females come for mating. Females differentially orient to burrows with hoods and thereby show a mate preference for hood builders. Here we describe how this mode of sexual selection may affect hood design and building. Larger males built generally larger but not higher hoods. Small males may build relatively high hoods so that they will be conspicuous to females of all sizes and construction or other costs may limit hood height. Most males built only one hood each biweekly reproductive cycle, typically on a day that many females chose mates, and they finished construction before females began mate searching. Both patterns fit predictions based on applying ideal free theory to the timing of sexual signaling. Sexual selection may favor more frequent hood building but the timing of hood building appears to be optimal.