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首页> 美国卫生研究院文献>Proceedings of the Royal Society B: Biological Sciences >Finding the ‘lost years’ in green turtles: insights from ocean circulation models and genetic analysis
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Finding the ‘lost years’ in green turtles: insights from ocean circulation models and genetic analysis

机译：寻找绿海龟的失落岁月：海洋环流模型和遗传分析的见解

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摘要

Organismal movement is an essential component of ecological processes and connectivity among ecosystems. However, estimating connectivity and identifying corridors of movement are challenging in oceanic organisms such as young turtles that disperse into the open sea and remain largely unobserved during a period known as ‘the lost years’. Using predictions of transport within an ocean circulation model and data from published genetic analysis, we present to our knowledge, the first basin-scale hypothesis of distribution and connectivity among major rookeries and foraging grounds (FGs) of green turtles (Chelonia mydas) during their ‘lost years’. Simulations indicate that transatlantic dispersal is likely to be common and that recurrent connectivity between the southwestern Indian Ocean and the South Atlantic is possible. The predicted distribution of pelagic juvenile turtles suggests that many ‘lost years hotspots’ are presently unstudied and located outside protected areas. These models, therefore, provide new information on possible dispersal pathways that link nesting beaches with FGs. These pathways may be of exceptional conservation concern owing to their importance for sea turtles during a critical developmental period.
机译：生物运动是生态过程和生态系统之间连通性的重要组成部分。但是，对于海洋生物（例如散布到公海中的小海龟，在称为“迷失的岁月”期间基本上未被观察到），估计连通性和确定活动走廊具有挑战性。利用海洋环流模型中的运移预测和已发表的遗传分析数据，我们了解到，第一个盆地规模的假设是绿海龟（Chelonia mydas）在其主要群和觅食场（FG）之间的分布和连通性。 “失去的岁月”。模拟表明，跨大西洋的扩散很可能很普遍，西南印度洋和南大西洋之间的经常性连通是可能的。预计中上层海龟的分布情况表明，目前尚未研究许多“失落年份热点”，它们位于保护区之外。因此，这些模型为连接嵌套海滩与FG的可能扩散途径提供了新信息。由于这些途径在关键的发育时期对海龟很重要，因此可能引起特别的保护关注。

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