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Phenotypic integration and conserved covariance structure in calopterygid damselflies.

Author:
  • Fabrice Eroukhmanoff
  • Erik Svensson
Publishing year: 2008
Language: English
Pages: 514-526
Publication/Series: Journal of Evolutionary Biology
Volume: 21
Issue: 2
Document type: Journal article
Publisher: John Wiley & Sons

Abstract english

By comparing the phenotypic (P) variance-covariance matrices between closely related taxa or conspecific populations, one can study the outcome of the interplay between selection and developmental constraints in phenotypic evolution. Shared patterns of phenotypic integration are also of interest and might result from similarities in either selection or developmental pathways. We compared P-matrices and phenotypic integration indices between populations and species of the damselfly genus Calopteryx. P(max)-comparisons between parapatric C. splendens populations revealed stronger conserved phenotypic covariance structure than P(max)-comparisons between species, suggesting that divergence in its early stages proceeds along phenotypic lines of least resistance. Within- and among-population correlations in C. splendens were highly concordant, in further support of initial divergence along P(max). Despite some similarities in overall phenotypic integration between C. splendens and C. virgo, these two species only had several P-matrix eigenvectors in common, indicating that after reproductive isolation, divergence has proceeded against P(max).

Keywords

  • Biological Sciences

Other

Published
  • ISSN: 1420-9101
erik_svensson
E-mail: erik [dot] svensson [at] biol [dot] lu [dot] se

Professor

Evolutionary ecology

+46 46 222 38 19

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