1
|
Amélineau F, Delbart N, Schwemmer P, Marja R, Fort J, Garthe S, Elts J, Delaporte P, Rousseau P, Duraffour F, Bocher P. Timing of spring departure of long distance migrants correlates with previous year's conditions at their breeding site. Biol Lett 2021; 17:20210331. [PMID: 34547216 PMCID: PMC8455173 DOI: 10.1098/rsbl.2021.0331] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 08/31/2021] [Indexed: 11/12/2022] Open
Abstract
Precise timing of migration is crucial for animals targeting seasonal resources at locations encountered across their annual cycle. Upon departure, long-distance migrants need to anticipate unknown environmental conditions at their arrival site, and they do so with their internal annual clock. Here, we tested the hypothesis that long-distance migrants synchronize their circannual clock according to the phenology of their environment during the breeding season and therefore adjust their spring departure date according to the conditions encountered at their breeding site the year before. To this end, we used tracking data of Eurasian curlews from different locations and combined movement data with satellite-extracted green-up dates at their breeding site. The spring departure date was better explained by green-up date of the previous year, while arrival date at the breeding site was better explained by latitude and longitude of the breeding site, suggesting that other factors impacted migration timing en route. On a broader temporal scale, our results suggest that long-distance migrants may be able to adjust their migration timing to advancing spring dates in the context of climate change.
Collapse
Affiliation(s)
- Françoise Amélineau
- Laboratoire Littoral Environnement et Sociétés, UMR 7266 CNRS – La Rochelle Université, La Rochelle 17000, France
| | - Nicolas Delbart
- Laboratoire Interdisciplinaire des Energies de Demain, UMR 8236 CNRS – Université de Paris, Paris 75013, France
| | - Philipp Schwemmer
- Research and Technology Centre, University of Kiel, Hafentörn 1, Büsum 25761, Germany
| | - Riho Marja
- ‘Lendület’ Landscape and Conservation Ecology, Institute of Ecology and Botany, Centre for Ecological Research, Alkotmány u. 2-4, Vácrátót 2163, Hungary
- BirdLife Estonia, Veski 4, Tartu 51005, Estonia
| | - Jérôme Fort
- Laboratoire Littoral Environnement et Sociétés, UMR 7266 CNRS – La Rochelle Université, La Rochelle 17000, France
| | - Stefan Garthe
- Research and Technology Centre, University of Kiel, Hafentörn 1, Büsum 25761, Germany
| | - Jaanus Elts
- Department of Zoology, Institute of Ecology and Earth Sciences, University of Tartu, 46 Vanemuise St., Tartu 51014, Estonia
| | - Philippe Delaporte
- Réserve Naturelle de Moёze-Oléron, Ligue pour la Protection des Oiseaux, Plaisance, Saint-Froult 17180, France
| | - Pierre Rousseau
- Réserve Naturelle de Moёze-Oléron, Ligue pour la Protection des Oiseaux, Plaisance, Saint-Froult 17180, France
| | - Françoise Duraffour
- Laboratoire de géographie PRODIG, UMR 8586 CNRS, Campus Condorcet, Bâtiment Recherche Sud, 5 cours des Humanités, Aubervilliers 93300, France
| | - Pierrick Bocher
- Laboratoire Littoral Environnement et Sociétés, UMR 7266 CNRS – La Rochelle Université, La Rochelle 17000, France
| |
Collapse
|