Sexual selection and reproductive success in males of the bicolor damselfish, Eupomacentrus partitus (Pisces: Pomacentridae)
Sexual selection and reproductive success in males of the bicolor damselfish, Eupomacentrus partitus (Pisces: Pomacentridae)
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双色雀鲷 (Eupomacentrus partitus) 雄性的性选择和繁殖成功率（双鱼座：Pomacentridae）
DOI：
10.1016/s0003-3472(81)80069-3
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发表时间：
1981
期刊：
影响因子：
2.5
通讯作者：
M. Schmale
中科院分区：
文献类型：
--
作者：
M. Schmale
雄性双色雀鲷，Eupomacentrus partitus的相对繁殖成功率，测量为在14个月的田间研究期间，每个男性每周获得的卵批次的数量。在7个殖民地，其中有23名男性，观察到产卵成功的大和一致的差异，表明交配是非随机的。还监测了雄性动物的各种身体和行为特征。繁殖成功率与求偶频率、种间和种内攻击行为、体长等4个变量之间存在显著相关性（P<0.05）。还考虑了其他因素的重要性，如男性领地的大小和位置以及分配给各种活动的时间。这些变量之间的相互作用，以及产卵的初步观察，表明，间性选择，即女性的配偶选择，是在这个物种的性选择的主导过程。
Relative reproductive success of male bicolor damselfish,Eupomacentrus partitus, was measured as the number of egg batches obtained per week per male during a 14-month field study. Large and consistent differences in spawning success, observed in seven colonies containing 23 males, demonstrated that mating was non-random. Various physical and behavioural characteristics of males were also monitored. Significant correlations (P<0.05) were found between reproductive success and four variables: frequency of courtship, inter- and intraspecific aggression, and total length. The importance of other factors such as size and location of male territories and time allotment to various activities was also considered. The interactions between these variables, as well as preliminary observations of spawning, suggest that intersexual selection, that is female choice of mates, is the dominant process in sexual selection in this species.