Evolution of mammalian migrations for refuge, breeding, and food.

Evolution of mammalian migrations for refuge, breeding, and food.
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DOI:
10.1002/ece3.3120
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发表时间:
2017-08
影响因子:
2.6
通讯作者:
Shaw AK
Shaw AK
中科院分区:
生物学2区
文献类型:
--
作者:
Gnanadesikan GE;Pearse WD;Shaw AK

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许多生物在不同的栖息地之间迁移,开发各种资源,同时深刻影响生态系统服务、疾病传播和人类福利。然而,使迁徙具有吸引力和意义的特征也使其难以研究,我们对哪些物种迁徙以及为什么迁徙缺乏全面的了解。在哺乳动物中,迁徙主要集中在鲸目和偶蹄目,但也广泛分布在整个纲中(27目中有12目)。我们将往返迁徙的许多生态驱动因素综合为三种类型的移动:在繁殖地和觅食地之间的移动,在繁殖地和避难所之间的移动,以及对饲料/猎物的连续跟踪,每种移动都与不同的特征(体重、饮食、运动和保护状况)相关。我们的结果只提供部分支持迁移发生没有系统发育限制的假设。此外,我们的研究结果表明,将移民分为这三种类型可能有助于预测移民对环境变化的反应。
Many organisms migrate between distinct habitats, exploiting variable resources while profoundly affecting ecosystem services, disease spread, and human welfare. However, the very characteristics that make migration captivating and significant also make it difficult to study, and we lack a comprehensive understanding of which species migrate and why. Here we show that, among mammals, migration is concentrated within Cetacea and Artiodactyla but also diffusely spread throughout the class (found in 12 of 27 orders). We synthesize the many ecological drivers of round‐trip migration into three types of movement—between breeding and foraging sites, between breeding and refuge sites, and continuous tracking of forage/prey—each associated with different traits (body mass, diet, locomotion, and conservation status). Our results provide only partial support for the hypothesis that migration occurs without phylogenetic constraint. Furthermore, our findings suggest that categorizing migration into these three types may aid predictions of migrants’ responses to environmental changes.
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