Generational shift in spring staging site use by a long-distance migratory bird

Mo A. Verhoeven*, A. H.Jelle Loonstra, Jos C.E.W. Hooijmeijer, Jose A. Masero, Theunis Piersma, Nathan R. Senner

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

14 Citations (Scopus)

Abstract

In response to environmental change, species have been observed altering their migratory behaviours. Few studies, however, have been able to determine whether these alterations resulted from inherited, plastic or flexible changes. Here, we present a unique observation of a rapid population-level shift in migratory routes—over 300 km from Spain to Portugal—by continental black-tailed godwits Limosa limosa limosa. This shift did not result from adult godwits changing staging sites, as adult site use was highly consistent. Rather, the shift resulted from young godwits predominantly using Portugal over Spain. We found no differences in reproductive success or survival among individuals using either staging site, indicating that the shift resulted from developmental plasticity rather than natural selection. Our results therefore suggest that new migratory routes can develop within a generation and that young individuals may be the agents of such rapid changes.

Original languageEnglish
Article number20170663
JournalBiology Letters
Volume14
Issue number2
DOIs
Publication statusPublished - Feb-2018

Keywords

  • Developmental plasticity
  • Migratory behaviour
  • Ontogeny
  • Shorebird
  • PHENOLOGY
  • TRENDS
  • BLACK-TAILED GODWITS
  • LIMOSA-LIMOSA
  • POPULATION

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