The effects of mating system on male mate choice in a coral reef fish
The effects of mating system on male mate choice in a coral reef fish
复制标题
交配系统对珊瑚礁鱼雄性择偶的影响
DOI：
10.1007/bf00293269
复制
发表时间：
1989
影响因子：
2.3
通讯作者：
R. R. Warner
中科院分区：
文献类型：
--
作者：
E. Berghe;R. R. Warner
SummaryWe显示如何配偶的限制似乎是至关重要的，在确定是否男性行使择偶之间可用的女性。双带锦鱼（Thalassoma bifasciatum）是一种加勒比海珊瑚鱼，有两种不同的交配模式：群体产卵和成对产卵。在这两种交配系统中，雌性生殖力是可变的和大小依赖的，女性的可用性很高。然而，精子之间的竞争组产卵男性显然限制了有效的交配，男性可能从事的数量，而领土对产卵男性很少或没有这样的限制。组产卵的男性应该在他们的配偶的选择和歧视，我们的数据证实了这一点：有强有力的证据表明，在组产卵，更大的男性加入周围的大型女性交配组的间接交配。相反，配对产卵的雄性没有表现出对配偶的偏好，并与所有到达其领地的雌性一起产卵。
SummaryWe show how mate limitation appears to be critical in determining whether or not males exercise mate choice among available females. Thalassoma bifasciatum is a Caribbean reef fish with two distinct mating patterns: group-spawning and pair-spawning. In both mating systems, female fecundity is variable and size dependent, and female availability is high. However, sperm competition among group-spawning males apparently limits the number of effective matings in which a male may engage, whereas territorial pair-spawning males have little or no such limitation. Group-spawning males should be discriminating in their choice of mates and our data confirm this: there is strong evidence for assortative mating in group-spawns, with more large males joining in mating groups around large females. In contrast, pair-spawning males show no indication of mate preferences, and spawn with all females who arrive at their territories.