For marine species with planktonic dispersal, invasion of open ocean coastlines is impaired by the physical adversity of ocean currents moving larvae downstream and offshore. The extent species are affected by physical adversity depends on interactions of the currents with larval life history traits such as planktonic duration, depth and seasonality. Ecologists have struggled to understand how these traits expose species to adverse ocean currents and affect their ability to persist when introduced to novel habitat. We use a high‐resolution global ocean model to isolate the role of ocean currents on the persistence of a larval‐producing species introduced to every open coastline of the world. We find physical adversity to invasion varies globally by several orders of magnitude. Larval duration is the most influential life history trait because increased duration prolongs species' exposure to ocean currents. Furthermore, variation of physical adversity with life history elucidates how trade‐offs between dispersal traits vary globally.

中文翻译：

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世界海岸线对浮游扩散物种入侵的海洋抵抗力的变化


对于浮游扩散的海洋物种来说，洋流将幼虫向下游和近海移动的物理逆境会损害公海海岸线的入侵。物种受自然逆境影响的程度取决于洋流与幼虫生活史特征（如浮游持续时间、深度和季节性）的相互作用。生态学家一直在努力了解这些特征如何使物种暴露在不利的洋流中，并影响它们在引入新栖息地时的生存能力。我们使用高分辨率的全球海洋模型来分离洋流对引入世界每条开放海岸线的幼虫产生物种的持久性的作用。我们发现全球范围内遭受入侵的自然灾害存在几个数量级的差异。幼虫持续时间是最有影响力的生活史特征，因为持续时间的增加延长了物种与洋流的接触时间。此外，身体逆境随生活史的变化阐明了全球范围内传播特征之间的权衡如何变化。