Skip to main content
Dryad logo

Data from: Timing of spring departure of long distance migrants correlates with previous year's conditions at their breeding site

Citation

Amélineau, Françoise et al. (2021), Data from: Timing of spring departure of long distance migrants correlates with previous year's conditions at their breeding site, Dryad, Dataset, https://doi.org/10.5061/dryad.8sf7m0cp6

Abstract

Precise timing of the 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 zkzdsxso 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. 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. 

Usage Notes

Spring migration dates of Eurasian curlews and green-up dates at the breeding sites

Funding

German Federal Agency for Nature Conservation, Award: FKZ 3515822100, project BIRDMOVE

German Federal Agency for Nature Conservation, Award: FKZ 3519861400, project TRACKBIRD

Contrat de Plan Etat-Région and CNRS, Award: project ECONAT

Ligue pour la Protection des Oiseaux

European Regional Development Fund, Award: QUALIDRIS project

Estonian Environmental Investment Centre

German Federal Agency for Nature Conservation, Award: FKZ 3515822100, project BIRDMOVE

Contrat de Plan Etat-Région and CNRS, Award: project ECONAT

Ligue pour la Protection des Oiseaux

Estonian Environmental Investment Centre