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Bonnet-Lebrun, Anne-Sophie, Somveille, Marius 
ORCID: https://orcid.org/0000-0002-6868-5080, Rodrigues, Ana S. L. and Manica, Andrea
(2021)
Exploring intraspecific variation in migratory destinations to investigate the drivers of migration.
Oikos, 130 (2).
pp. 187-196.
ISSN 0030-1299
Abstract
Various benefits (e.g. tracking of resources and of climate niche) and costs (e.g. distance travelled) are hypothesized to drive seasonal animal migrations. Until now, these potential factors have been investigated together at the species level, but migratory movements are made at the individual level, leading to intraspecific variability. Here, we use ringing/recovery data from 1308 individuals belonging to thirteen North American bird species to analyse patterns in intraspecific variability of migratory destinations in order to investigate which factors underpin bird migration and how individuals trade-off among multiple factors. Our results suggest that migratory destinations have been shaped by access to resources (most important during the breeding season) and climatic niche tracking (during winter, mostly). However, the benefits of resource surpluses and climate niche tracking appear to be traded off against the cost of migratory distance, which seems to strongly constrain where individuals migrate.
| Item Type: | Article |
|---|---|
| Additional Information: | Acknowledgements: We are grateful to all the volunteers who collected the banding data and to the many employees of the Bird Banding Lab who worked to curate the data. We also thank Caitlin Frankish for some useful language edits on the manuscript. This project was part of A.‐S. Bonnet‐Lebrun's PhD at the Univ. of Cambridge (UK), funded by a Saint John's College Benefactors' Scholarship. |
| Uncontrolled Keywords: | bird migration,niche tracking,north american passerines,resource surplus,recovery data,ecology, evolution, behavior and systematics ,/dk/atira/pure/subjectarea/asjc/1100/1105 |
| Faculty \ School: | Faculty of Science > School of Environmental Sciences |
| UEA Research Groups: | Faculty of Science > Research Centres > Centre for Ecology, Evolution and Conservation |
| Related URLs: | |
| Depositing User: | LivePure Connector |
| Date Deposited: | 22 Jul 2024 10:32 |
| Last Modified: | 10 Oct 2024 11:30 |
| URI: | https://ueaeprints.uea.ac.uk/id/eprint/95978 |
| DOI: | 10.1111/oik.07689 |
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