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Species coexistence and the dynamics of phenotypic evolution in adaptive radiation.

Tobias, Joseph A; Cornwallis, Charlie LU ; Derryberry, Elizabeth P; Claramunt, Santiago; Brumfield, Robb T and Seddon, Nathalie (2014) In Nature 506(7488). p.359-359
Abstract
Interactions between species can promote evolutionary divergence of ecological traits and social signals, a process widely assumed to generate species differences in adaptive radiation. However, an alternative view is that lineages typically interact when relatively old, by which time selection for divergence is weak and potentially exceeded by convergent selection acting on traits mediating interspecific competition. Few studies have tested these contrasting predictions across large radiations, or by controlling for evolutionary time. Thus the role of species interactions in driving broad-scale patterns of trait divergence is unclear. Here we use phylogenetic estimates of divergence times to show that increased trait differences among... (More)
Interactions between species can promote evolutionary divergence of ecological traits and social signals, a process widely assumed to generate species differences in adaptive radiation. However, an alternative view is that lineages typically interact when relatively old, by which time selection for divergence is weak and potentially exceeded by convergent selection acting on traits mediating interspecific competition. Few studies have tested these contrasting predictions across large radiations, or by controlling for evolutionary time. Thus the role of species interactions in driving broad-scale patterns of trait divergence is unclear. Here we use phylogenetic estimates of divergence times to show that increased trait differences among coexisting lineages of ovenbirds (Furnariidae) are explained by their greater evolutionary age in relation to non-interacting lineages, and that-when these temporal biases are accounted for-the only significant effect of coexistence is convergence in a social signal (song). Our results conflict with the conventional view that coexistence promotes trait divergence among co-occurring organisms at macroevolutionary scales, and instead provide evidence that species interactions can drive phenotypic convergence across entire radiations, a pattern generally concealed by biases in age. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Nature
volume
506
issue
7488
pages
359 - 359
publisher
Nature Publishing Group
external identifiers
  • pmid:24362572
  • wos:000331477800039
  • scopus:84894236408
ISSN
0028-0836
DOI
10.1038/nature12874
language
English
LU publication?
yes
id
ddf06974-3e1c-4770-9439-7107327c8ada (old id 4223302)
date added to LUP
2014-01-08 14:33:12
date last changed
2017-11-12 03:10:10
@article{ddf06974-3e1c-4770-9439-7107327c8ada,
  abstract     = {Interactions between species can promote evolutionary divergence of ecological traits and social signals, a process widely assumed to generate species differences in adaptive radiation. However, an alternative view is that lineages typically interact when relatively old, by which time selection for divergence is weak and potentially exceeded by convergent selection acting on traits mediating interspecific competition. Few studies have tested these contrasting predictions across large radiations, or by controlling for evolutionary time. Thus the role of species interactions in driving broad-scale patterns of trait divergence is unclear. Here we use phylogenetic estimates of divergence times to show that increased trait differences among coexisting lineages of ovenbirds (Furnariidae) are explained by their greater evolutionary age in relation to non-interacting lineages, and that-when these temporal biases are accounted for-the only significant effect of coexistence is convergence in a social signal (song). Our results conflict with the conventional view that coexistence promotes trait divergence among co-occurring organisms at macroevolutionary scales, and instead provide evidence that species interactions can drive phenotypic convergence across entire radiations, a pattern generally concealed by biases in age.},
  author       = {Tobias, Joseph A and Cornwallis, Charlie and Derryberry, Elizabeth P and Claramunt, Santiago and Brumfield, Robb T and Seddon, Nathalie},
  issn         = {0028-0836},
  language     = {eng},
  number       = {7488},
  pages        = {359--359},
  publisher    = {Nature Publishing Group},
  series       = {Nature},
  title        = {Species coexistence and the dynamics of phenotypic evolution in adaptive radiation.},
  url          = {http://dx.doi.org/10.1038/nature12874},
  volume       = {506},
  year         = {2014},
}