The stability of P in coral reef fishes

Game, Edward T. and Caley, M. Julian (2006) The stability of P in coral reef fishes. Evolution, 60 4: 814-823. doi:10.1554/05-318.1

Author Game, Edward T.
Caley, M. Julian
Title The stability of P in coral reef fishes
Journal name Evolution   Check publisher's open access policy
ISSN 0014-3820
Publication date 2006-04
Sub-type Article (original research)
DOI 10.1554/05-318.1
Volume 60
Issue 4
Start page 814
End page 823
Total pages 10
Place of publication Massachusetts
Publisher Blackwell Publishing
Collection year 2006
Language eng
Subject C1
270207 Quantitative Genetics
780105 Biological sciences
Abstract The constancy of phenotypic variation and covariation is an assumption that underlies most recent investigations of past selective regimes and attempts to predict future responses to selection. Few studies have tested this assumption of constancy despite good reasons to expect that the pattern of phenotypic variation and covariation may vary in space and time. We compared phenotypic variance-covariance matrices (P) estimated for Populations of six species of distantly related coral reef fishes sampled at two locations on Australia's Great Barrier Reef separated by more than 1000 km. The intraspecific similarity between these matrices was estimated using two methods: matrix correlation and common principal component analysis. Although there was no evidence of equality between pairs of P, both statistical approaches indicated a high degree of similarity in morphology between the two populations for each species. In general, the hierarchical decomposition of the variance-covariance structure of these populations indicated that all principal components of phenotypic variance-covariance were shared but that they differed in the degree of variation associated with each of these components. The consistency of this pattern is remarkable given the diversity of morphologies and life histories encompassed by these species. Although some phenotypic instability was indicated, these results were consistent with a generally conserved pattern of multivariate selection between populations.
Keyword Ecology
Evolutionary Biology
Genetics & Heredity
Common Principal Components Analysis
Matrix Constancy
Multivariate Selection
Phenotypic Covariance Matrices
Phenotypic Variation
Phenotypic Covariance Structure
Quantitative Genetic-variation
Population Divergence
Least Resistance
Garter Snake
Q-Index Code C1

Document type: Journal Article
Sub-type: Article (original research)
Collections: Spatial Ecology Lab Publications
2007 Higher Education Research Data Collection
School of Biological Sciences Publications
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Citation counts: TR Web of Science Citation Count  Cited 12 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 11 times in Scopus Article | Citations
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Created: Wed, 15 Aug 2007, 10:40:10 EST