Evolutionary constraints and the maintenance of individual specialization throughout succession

Monro, Keyne and Marshall, Dusty J. (2013) Evolutionary constraints and the maintenance of individual specialization throughout succession. Evolution, 67 12: 3636-3644. doi:10.1111/evo.12220

Author Monro, Keyne
Marshall, Dusty J.
Title Evolutionary constraints and the maintenance of individual specialization throughout succession
Journal name Evolution   Check publisher's open access policy
ISSN 0014-3820
Publication date 2013-01-01
Year available 2013
Sub-type Article (original research)
DOI 10.1111/evo.12220
Open Access Status Not yet assessed
Volume 67
Issue 12
Start page 3636
End page 3644
Total pages 9
Place of publication Oxford, United Kingdom
Publisher Wiley-Blackwell Publishing Ltd.
Language eng
Subject 1100 Agricultural and Biological Sciences
1105 Dentistry
1311 Genetics
Abstract Constraints on life-history traits, with their close links to fitness, are widely invoked as limits to niche expansion at most organizational levels. Theoretically, such constraints can maintain individual specialization by preventing adaptation to all niches available, but empirical evidence of them remains elusive for natural populations. This problem may be compounded by a tendency to seek constraints involving multiple traits, neglecting their added potential to manifest in trait expression across environments (i.e., within reaction norms). By replicating genotypes of a colonial marine invertebrate across successional stages in its local community, and taking a holistic approach to the analysis of ensuing reaction norms for fitness, we show the potential for individual specialization to be maintained by genetic constraints associated with these norms, which limit the potential for fitness at one successional stage to improve without loss of fitness at others. Our study provides new insight into the evolutionary maintenance of individual specialization in natural populations and reinforces the importance of reaction norms for studying this phenomenon.
Keyword Among individual niche variation
Life history traits
Reaction norms
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2014 Collection
School of Biological Sciences Publications
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