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To boldly go: individual differences in boldness influence migratory tendency.

Author:
  • Ben Chapman
  • Kaj Hulthén
  • David Blomqvist
  • Lars-Anders Hansson
  • Jan-Åke Nilsson
  • Jakob Brodersen
  • Anders Nilsson
  • Christian Skov
  • Christer Brönmark
Publishing year: 2011
Language: English
Pages: 871-876
Publication/Series: Ecology Letters
Volume: 14
Document type: Journal article (letter)
Publisher: Wiley-Blackwell

Abstract english

Ecology Letters (2011) ABSTRACT: Partial migration, whereby only a fraction of the population migrates, is thought to be the most common type of migration in the animal kingdom, and can have important ecological and evolutionary consequences. Despite this, the factors that influence which individuals migrate and which remain resident are poorly understood. Recent work has shown that consistent individual differences in personality traits in animals can be ecologically important, but field studies integrating personality traits with migratory behaviour are extremely rare. In this study, we investigate the influence of individual boldness, an important personality trait, upon the migratory propensity of roach, a freshwater fish, over two consecutive migration seasons. We assay and individually tag 460 roach and show that boldness influences migratory propensity, with bold individuals being more likely to migrate than shy fish. Our data suggest that an extremely widespread personality trait in animals can have significant ecological consequences via influencing individual-level migratory behaviour.

Keywords

  • Zoology
  • Ecology

Other

Published
  • CAnMove
  • ISSN: 1461-023X
Kaj Hultén
E-mail: kaj [dot] hulthen [at] biol [dot] lu [dot] se

Postdoctoral fellow

Aquatic ecology

+46 46 222 84 37

+46 76 786 49 97

E-D115

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Centre for Animal Movement Research
Evolutionary Ecology, Department of Biology
Ecology building S-223 62 Lund Sweden