Spatial patterns of spawning in the coral-reef damselfish Dascyllus albisella
Spatial patterns of spawning in the coral-reef damselfish Dascyllus albisella
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珊瑚礁雀鲷 Dascyllus albisella 产卵的空间模式
DOI：
10.1007/bf00349288
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发表时间：
1995
期刊：
影响因子：
2.4
通讯作者：
B. Danilowicz
中科院分区：
文献类型：
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作者：
B. Danilowicz
1992年，在夏威夷岛周围5米范围内调查了夏威夷特有的白纹豆象的繁殖模式。在四个空间尺度上研究了产卵量的日变化：个别领土;珊瑚礁断面;整个珊瑚礁块;以及相隔20公里以上的地点。一个6天，非月球筑巢周期被发现个别男性，和一个同步的，6天，nonhinar产卵周期内发现礁断面，整个补丁礁，和位置。同一地点内的珊瑚礁之间保持着产卵的同步性。然而，产卵地点之间被发现是异步的，限制生殖同步的空间尺度为>1公里，但<20公里。同步复制的固有好处进行福特。albisella，但只有局部沼泽的浮游捕食者可能是一个固有的好处，同步产卵的这个物种。另外，种群之间的同步产卵可能存在于成年人跟踪当地有利的环境条件，而不是朝着同步的内在好处进化。
Reproductive patterns of the endemic Hawaiian damselfishDascyllus albisellawere examined around the island of Oahu for 5 m in 1992. Daily variation in spawning was studied at four spatial scales: individual territories; reef transects; whole patch reefs; and locations separated by>20 km. A 6 d, non-lunar nesting cycle was found for individual males, and a synchronized, 6 d, nonhinar spawning cycle was found within reef transects, whole patch reefs, and locations. Spawning synchronicity was maintained among reefs within a location. However, spawning among locations was found to be asynchronous, limiting the spatial scale of reproductive synchrony to>1 km but<20 km. Inherent benefits of synchronous reproduction are discussed forD. albisella, but only the localized swamping of planktonic predators may be an inherent benefit of synchronous spawning for this species. Alternatively, synchronous spawning among populations may exist from adults tracking local, favorable environmental conditions rather than having evolved towards an inherent benefit of synchronization.