TESTING ADAPTIVE RADIATION AND KEY INNOVATION HYPOTHESES IN SPIDERS

@article{Bond1998TESTINGAR,
  title={TESTING ADAPTIVE RADIATION AND KEY INNOVATION HYPOTHESES IN SPIDERS},
  author={Jason E. Bond and Brent D Opell},
  journal={Evolution},
  year={1998},
  volume={52}
}
We combine statistical and phylogenetic approaches to test the hypothesis that adaptive radiation and key innovation have contributed to the diversity of the order Araneae. The number of unbalanced araneid clades (those whose species numbers differ by 90% or more) exceeds the number predicted by a null Markovian model. The current phylogeny of spider families contains 74 bifurcating nodes, of which 31 are unbalanced. As this is significantly more than the 14.8 expected unbalanced nodes, some of… 
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