Food supplementation mitigates dispersal-dependent differences in nest defence in a passerine bird

Charlotte Récapet, Gregory Daniel, Joelle Taroni, Pierre Bize, Blandine Doligez

Research output: Contribution to journalArticle

5 Citations (Scopus)
5 Downloads (Pure)

Abstract

Dispersing and non-dispersing individuals often differ in phenotypic traits (e.g. physiology, behaviour), but to what extent these differences are fixed or driven by external conditions remains elusive. We experimentally tested whether differences in nest-defence behaviour between dispersing and non-dispersing individuals changed with local habitat quality in collared flycatchers, by providing additional food during the nestling rearing period. In control (non-food-supplemented) nests, dispersers were less prone to defend their brood compared with non-dispersers, whereas in food-supplemented nests, dispersing and non-dispersing individuals showed equally strong nest
defence. We discuss the importance of dispersal costs versus adaptive flexibility in reproductive investment in shaping these differences in nest-defence behaviour between dispersing and non-dispersing individuals. Irrespective of the underlying mechanisms, our study emphasizes the importance of
accounting for environmental effects when comparing traits between dispersing and non-dispersing individuals, and in turn assessing the costs and benefits of dispersal.
Original languageEnglish
Article number20160097
Pages (from-to)1-4
Number of pages4
JournalBiology Letters
Volume12
Issue number5
DOIs
Publication statusPublished - 18 May 2016

Fingerprint

Dietary Supplements
Birds
nests
birds
Fortified Food
Songbirds
Cost-Benefit Analysis
Ecosystem
Costs and Cost Analysis
Food
rearing
physiology
habitats

Keywords

  • dispersal
  • anti-predator behaviour
  • parental care
  • personality
  • habitat quality
  • Ficedula albicollis

Cite this

Food supplementation mitigates dispersal-dependent differences in nest defence in a passerine bird. / Récapet, Charlotte; Daniel, Gregory; Taroni, Joelle; Bize, Pierre; Doligez, Blandine.

In: Biology Letters, Vol. 12, No. 5, 20160097, 18.05.2016, p. 1-4.

Research output: Contribution to journalArticle

Récapet, Charlotte ; Daniel, Gregory ; Taroni, Joelle ; Bize, Pierre ; Doligez, Blandine. / Food supplementation mitigates dispersal-dependent differences in nest defence in a passerine bird. In: Biology Letters. 2016 ; Vol. 12, No. 5. pp. 1-4.
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abstract = "Dispersing and non-dispersing individuals often differ in phenotypic traits (e.g. physiology, behaviour), but to what extent these differences are fixed or driven by external conditions remains elusive. We experimentally tested whether differences in nest-defence behaviour between dispersing and non-dispersing individuals changed with local habitat quality in collared flycatchers, by providing additional food during the nestling rearing period. In control (non-food-supplemented) nests, dispersers were less prone to defend their brood compared with non-dispersers, whereas in food-supplemented nests, dispersing and non-dispersing individuals showed equally strong nestdefence. We discuss the importance of dispersal costs versus adaptive flexibility in reproductive investment in shaping these differences in nest-defence behaviour between dispersing and non-dispersing individuals. Irrespective of the underlying mechanisms, our study emphasizes the importance ofaccounting for environmental effects when comparing traits between dispersing and non-dispersing individuals, and in turn assessing the costs and benefits of dispersal.",
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note = "Funding This work was supported by the Centre National de la Recherche Scientifique (PICS France-Switzerland to B.D.), the Minist{\`e}re de l'Enseignement Sup{\'e}rieur et de la Recherche (PhD fellowship to C.R.), the University of Aberdeen (stipend to C.R.), the Uppsala Universitet (stipend to G.D.), the Universit{\'e} de Lausanne (grant to J.T.), the R{\'e}gion Rh{\^o}ne-Alpes (Programme Cible PhD fellowship to G.D. and Explora'doc mobility grants to C.R. and G.D.), the L'Or{\'e}al Foundation-UNESCO ‘For Women in Science’ programme (fellowship to C.R.), the Rectors' Conference of the Swiss Universities and the Fondation pour l'Universit{\'e} de Lausanne (grants to C.R.). Acknowledgements Many thanks to Jukka Forsman and the landowners of Gotland for access to the study sites; Lars Gustafsson for field logistics; Myriane Chalopin, Arthur Colliot, Justine Le Vaillant, Pierre-Lou Marion and Murielle Vergniol for their help on the field; and Nicolas Morellet and an anonymous referee for constructive comments on an earlier version of the manuscript.",
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