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原文連結
論文資訊
- 類型：已發表論文
- 日期：2017
摘要
Mass migrations are found throughout the animal kingdom and are often undertaken by coordinated 社會 groups. However, surprisingly little is known about how 社會 interactions influence migratory timing. Anadromous fishes such as salmon make extensive breeding migrations between 海洋 and freshwater ecosystems. Returning adult salmon tend to move in discrete temporal pulses, which are typically thought to be triggered by abiotic environmental stimuli (e.g. changes in river flow or temperature). However, most studies reveal only weak correlations between abiotic factors and the timing of spawning runs. Here, we demonstrate that 社會 interactions provide a plausible alternative or additional explanation for such patterns. We first provide an example of the phenomenon using 20 years of data on sockeye
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