Skip to main content

Advertisement

Log in

Shifts in migration phenology under climate change: temperature vs. abundance effects in birds

  • Published:
Climatic Change Aims and scope Submit manuscript

Abstract

In migratory birds, increasing temperatures have been linked to earlier arrival to breeding sites, enabling an earlier start of breeding and leading to changes in abundance. Long-term population trends may thus reflect a species capacity to respond to climate change. However, when a species is more abundant, it is also more easily detectable by observers, leading to an earlier detection of its arrival. Therefore, investigations of the drivers of shifts in apparent arrival dates to breeding sites and population trends remain challenging. Here, we formulate predictions aiming to disentangle the different drivers, analysing spring arrival dates and population changes of 52 migratory birds in a Central European country, the Czech Republic, from 1994 to 2017. If shifts in arrival dates are driven by increasing spring temperatures, migrants should arrive earlier in a warmer year and their abundance should increase in the subsequent year due to earlier breeding. If earlier migrant arrival results from their increased detectability caused by higher abundance, then migrants should arrive earlier in the same years when their abundance is high. We found clear support for the former prediction, indicating that climate change drives the earlier arrival of migrants irrespective of changes in their detectability. Moreover, species advancing their arrival to a greater degree had more positive population trends, and responses to rising spring temperatures in the Czech Republic became weaker with increasing migration distance. Therefore, climate change drives population trends of migratory species according to their capacity to adjust their arrival date to variations in spring temperatures.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2

Similar content being viewed by others

References

Download references

Acknowledgements

We thank P. Lumpe for curating the arrival data in the initial period and hundreds of collaborators for gathering data on FAD. We also thank the hundreds of voluntary ornithologists who monitor bird abundance within BBMP. Z. Vermouzek curated data in the BBMP database and part of the database on arrival dates. V. Beran, V. Brlík, J. Cepák, J. Chytil, M. Fejfar, J. Flousek, D. Křenek, V. Kubelka, R. Lučan, P. Lumpe, M. Paclík, P. Procházka, M. Pudil, P. Řepa, O. Sedláček, M. E. Šálek, K. Ševčíková, J. Šírek and P. Voříšek kindly provided their ranking of species’ detectability on arrival. We are grateful to three anonymous reviewers for their constructive comments. D. W. Hardekopf improved the English.

Funding

This study was supported through the Charles University (PRIMUS/17/SCI/16), the Institutional Research Plan (RVO: 68081766), Palacký University grant scheme (IGA PrF 2018_016, 2019_019) and the Czech Science Foundation (20-00648S).

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Jaroslav Koleček.

Ethics declarations

Conflict of interest

The authors declare that they have no conflict of interest.

Additional information

Publisher’s note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Electronic supplementary material

ESM 1

(DOCX 51 kb)

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Koleček, J., Adamík, P. & Reif, J. Shifts in migration phenology under climate change: temperature vs. abundance effects in birds. Climatic Change 159, 177–194 (2020). https://doi.org/10.1007/s10584-020-02668-8

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10584-020-02668-8

Keywords

Navigation