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Express yourself: bold individuals induce enhanced morphological defences
Lund University, Sweden.
Lund University, Sweden.
Lund University, Sweden.ORCID iD: 0000-0002-3541-9835
Lund University, Sweden.
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2014 (English)In: Proceedings of the Royal Society of London. Biological Sciences, ISSN 0962-8452, E-ISSN 1471-2954, Vol. 281, no 1776, p. 20132703-Article in journal (Refereed) Published
Abstract [en]

Organisms display an impressive array of defence strategies in nature. Inducible defences (changes in morphology and/or behaviour within a prey's lifetime) allow prey to decrease vulnerability to predators and avoid unnecessary costs of expression. Many studies report considerable interindividual variation in the degree to which inducible defences are expressed, yet what underlies this variation is poorly understood. Here, we show that individuals differing in a key personality trait also differ in the magnitude of morphological defence expression. Crucian carp showing risky behaviours (bold individuals) expressed a significantly greater morphological defence response when exposed to a natural enemy when compared with shy individuals. Furthermore, we show that fish of different personality types differ in their behavioural plasticity, with shy fish exhibiting greater absolute plasticity than bold fish. Our data suggest that individuals with bold personalities may be able to compensate for their risk-prone behavioural type by expressing enhanced morphological defences.

Place, publisher, year, edition, pages
2014. Vol. 281, no 1776, p. 20132703-
National Category
Ecology
Research subject
Biology
Identifiers
URN: urn:nbn:se:kau:diva-34853DOI: 10.1098/rspb.2013.2703ISI: 000332381500018OAI: oai:DiVA.org:kau-34853DiVA, id: diva2:774636
Available from: 2014-12-27 Created: 2014-12-27 Last updated: 2017-12-05Bibliographically approved

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Nilsson, P. Anders

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