SEXUAL SELECTION IN A MONOMORPHIC LEK-BREEDING BIRD - CORRELATES OF MALE MATING SUCCESS IN THE GREAT SNIPE GALLINAGO-MEDIA
SEXUAL SELECTION IN A MONOMORPHIC LEK-BREEDING BIRD - CORRELATES OF MALE MATING SUCCESS IN THE GREAT SNIPE GALLINAGO-MEDIA
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DOI：
10.1007/bf00292501
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发表时间：
1987-01-01
影响因子：
2.3
通讯作者：
LUNDBERG, A
中科院分区：
文献类型：
--
作者：
HOGLUND, J;LUNDBERG, A
在列克繁殖的大鹬，男性形态，行为和领土的特点，记录了单独标记的鸟类在两个相邻的列克。偏相关分析表明，雄性交配成功率，表示为女性的恳求和交配的数量，是负相关的距离显示领土的列克中心和正相关的显示每单位时间的男性。没有其他变量与男性交配成功直接相关。因此，中央男性获得更多的交配比周边男性和成功的男性显示更多的每单位时间比不太成功的男性，独立的位置上的列克。中央的男性被发现是年龄比周边的，更经常出现在列克。此外，中央雄性有更多的白色尾羽，这是作为视觉信号的显示，但这可能是解释的事实，这些男性是老年人。这表明，雄性大鹬的性选择，主要是在行为和声音线索，这可能会解释的情况下，在这个物种的大小和羽毛二型性。
In the lek-breeding great snipe, male morphology, behavior, and territory features were recorded for individually marked birds on two adjacent leks. Partial correlation showed that male mating success, expressed as the number of female solicitations and copulations, was negatively correlated with the distance of a display territory to the lek center and positively correlated with the number of displays per unit time given by a male. No other variables were directly correlated with male mating success. Thus, central males obtain more matings than peripheral males and successful males display more per unit time than do less successful males, independently of position on the lek. Central males were found to be older than peripheral ones and were present more often on the lek. Furthermore, central males had a larger number of white tail feathers, which are used as visual signals in the displays, but this may be explained by the fact that these males were older. It is suggested that male great snipe are subject to sexual selection mainly in behavioral and vocal cues and that this may explain the absence of size and plumage dimorphism in this species.