期刊
SCIENTIFIC REPORTS
卷 8, 期 -, 页码 -出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/s41598-018-21608-2
关键词
-
资金
- Marie Curie Intra-European Fellowship [PIEF-GA-2010-272282-SOMA]
- Marie Curie COFUND/Beatriu de Pinos Programme [2013-BP-B-00226]
- Fundacao para a Ciencia e a Tecnologia (FCT Portugal) (FEDER) [UID/MAR/04292/2013, UID/AMB/50017, IF/00502/2013/CP1186/CT0003, PTDC/BIA-ANM/3743/2014]
- Fundação para a Ciência e a Tecnologia [UID/AMB/50017/2013, PTDC/BIA-ANM/3743/2014, IF/00502/2013/CP1186/CT0003] Funding Source: FCT
Wind conditions strongly affect migratory costs and shape flyways and detours for many birds, especially soaring birds. However, whether winds also influence individual variability in migratory choices is an unexplored question. Cory's shearwaters (Calonectris borealis) exhibit migratory flexibility, changing non-breeding destination across the Atlantic Ocean within and between years. Here, we investigated how wind dynamics affect the spatiotemporal migratory behaviour and whether they influence individual choices of non-breeding destination. We analysed 168 GLS tracks of migratory Cory's shearwaters over five years in relation to concurrent wind data. We found no evidence for an association of the use of specific paths or destinations with particular wind conditions. Our results suggest that shearwaters deliberately choose their non-breeding destination, even when the choice entails longer distances and higher energetic costs for displacement due to unfavourable wind conditions en route. Favourable winds trigger migration only when directed towards specific areas but not to others. Despite their dependence on wind for dynamic soaring, Cory's shearwaters show a high individuality in migratory behaviour that cannot be explained by individual birds encountering different meteorological conditions at departure or during migratory movements.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据