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首页> 外文期刊>Bulletin of Marine Science >Localized Outbreak And Feeding Preferencesof The Crown-of-thorns Seastar Acanthaster Planci (echinodermata, Asteroidea) On Reefs Off Oahu, Hawaii
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Localized Outbreak And Feeding Preferencesof The Crown-of-thorns Seastar Acanthaster Planci (echinodermata, Asteroidea) On Reefs Off Oahu, Hawaii

机译:夏威夷瓦胡岛附近礁石上的荆棘冠海星Acanthaster Planci(echinodermata,Asteroidea)的局部爆发和取食偏好

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摘要

The crown-of-thorns seastar [Acanthaster planci (Linnaeus, 1758)] is a selective corallivore that has caused widespread destruction on numerous reefs throughout the Indo-Pacific (e.g., Chesher, 1969; Done, 1985; Endean et al., 1989; Walbran et al., 1989). Elevated densities indicating a reef may be experiencing an outbreak (≥ 1500 seastars km~(-2); Moran and De'ath, 1992a) can result in significant loss of corals on reefs, and it is still unclear what drives these population surges. Hypotheses include natural population fluctuations (Vine, 1970), redistribution of existing populations due to food limitation (Dana et al., 1972), depleted predators of larval or juvenile seastars (Randall, 1972; Endean, 1977), and enhanced larval survival due to elevated nutrients from terrestrial runoff (Birkeland, 1992; Brodie et al., 2005).
机译:荆棘冠海星[Acanthaster planci(Linnaeus,1758)]是一种选择性珊瑚虫,已在整个印度洋-太平洋上对许多礁石造成了广泛破坏(例如,Chesher,1969; Done,1985; Endean等,1989)。 ; Walbran等,1989)。密度升高表明珊瑚礁可能正在爆发(≥1500海星km〜(-2); Moran和De'ath,1992a)会导致珊瑚礁上珊瑚的大量流失,目前尚不清楚是什么导致这些种群激增。假设包括自然种群波动(Vine,1970),由于食物限制而对现有种群的重新分配(Dana等,1972),幼虫或幼海星的掠食性动物消亡(Randall,1972; Endean,1977),以及幼虫存活期延长地表径流中养分的增加(Birkeland,1992; Brodie等,2005)。

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