EVOLUTION OF BLACK GROUSE LEKS - FEMALE PREFERENCES BENEFIT MALES IN LARGER LEKS
EVOLUTION OF BLACK GROUSE LEKS - FEMALE PREFERENCES BENEFIT MALES IN LARGER LEKS
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DOI：
10.1093/beheco/3.1.53
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发表时间：
1992-03-01
影响因子：
2.4
通讯作者：
SUTHERLAND, WJ
中科院分区：
文献类型：
--
作者：
ALATALO, RV;HOGLUND, J;SUTHERLAND, WJ
Leks是一种公共展示场所，雄性在这里展示，雌性只负责交配，它代表了性选择最显著的结果之一。目前还没有详细的研究比较不同体型的男性和女性的行为，以测试男性聚集是否有任何好处，并测试许多假设，以解释嬉戏。在黑松鸡Tetrao Tetrix中，体型较大的Lek有更多的雌性造访和交配，导致雄性交配的平均成功率更高。雌性也更有可能交配，这表明雌性对雄性的偏好对Lek的进化很重要。一岁的雄性很少交配，但它们出现在Lek上会增加成年雄性的交配成功率，这表明Lek本身的大小，而不仅仅是雄性的质量影响着雌性对较大Lek的偏好。雄性在Lek大小上的分布符合一个博弈论模型，即不平等竞争者的理想自由分配，在该模型中，竞争力较弱的雄性去往较小的Lek。
Leks, communal display grounds in which males display and females only attend to mate, represent one of the most remarkable outcomes of sexual selection. There have been no detailed studies that compare the behavior of males and females between leks of different sizes to test if there is any benefit for male clumping and to test the many hypotheses suggested to explain lekking. In the black grouse, Tetrao tetrix, larger leks have many more female visits and copulations, leading to a higher average male mating success. Females visiting larger leks are also more likely to mate, indicating that female preferences of males are important for the evolution of leks. Yearling males seldom copulate, but their presence on the lek increases the mating success of adult males, suggesting that lek size per se and not only male quality affects female preferences for larger leks. The distribution of males over lek sizes agrees with a game theory model of ideal free distribution with unequal competitors, in which less competitive males go to smaller leks.