Mating system of the freckled hawkfish, Paracirrhites forsteri (Cirrhitidae) on Kuchierabu-jima Island, southern Japan
Mating system of the freckled hawkfish, Paracirrhites forsteri (Cirrhitidae) on Kuchierabu-jima Island, southern Japan
复制标题
日本南部口良部岛的雀斑鹰鱼 Paracirrites forsteri（Cirrhitidae）的交配系统
DOI：
10.1007/s10641-016-0520-y
复制
发表时间：
2016
影响因子：
1.4
通讯作者：
Sakai Y
中科院分区：
文献类型：
--
作者：
Kadota T;Sakai Y
卷尾虫的交配系统通常被归类为后宫一夫多妻制。然而，关于大型鹰鱼的空间分布模式和交配关系的详细信息缺乏。我们调查了日本南部库契亚布-吉马岛暗礁上大型鹰鱼Paracirrhites forsteri的空间分布格局和个体间的交配关系。体型较大的雄性维持领地，并在其领地边界附近攻击其他大型雄性。雌性通常白天呆在雄性领地之外，下午晚些时候转移到雄性领地内突出的珊瑚头进行交配。大型雄性在日落时与几只雌性产卵，雌性很少更换交配伙伴。此外，我们确认出现了体型与雌性相似的小雄性。这些小雄性在大雄性的领地内/周围与其他小雄性交战，并与小雌性配对产卵。雌雄鱼的分布模式和小雄鱼的出现从来没有报道过，但它们稳定的交配伙伴关系与后天鹰鱼非常相似。我们的结果揭示了卷尾科中交配系统的相当大的变异。
The mating system of cirrhitids is generally classified as harem polygyny. However, detailed information on the spatial distribution patterns and mating relationships is lacking in large hawkfish species. We investigated the spatial distribution patterns and mating relationships among individuals of the large hawkfish,Paracirrhites forsteri, on a Kuchierabu-jima Island reef in southern Japan. Large males maintained territories and attacked other large males near the boundaries of their territories. Females usually stayed outside of male territories during the day and moved to prominent coral heads within male territories during the late afternoon for mating. Large males spawned with several females around sunset, and females seldom changed their mating partners. In addition, we confirmed the occurrence of small males with a body size similar to that of females. These small males placed their territories against other small males within/around the territories of large males and pair-spawned with small females. The female distribution pattern and occurrence of small males have never been reported in haremic hawkfish, but their stable mating partnership is very similar to that of haremic hawkfish. Our results reveal considerable variation in mating systems within Cirrhitidae.