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Please use this identifier to cite or link to this item: http://hdl.handle.net/2262/64936

Title: A common tendency for phylogenetic overdispersion in mammalian assemblages
Author: COOPER, NATALIE
RODRIGUEZ, JESUS
PURVIS, ANDY
Author's Homepage: http://people.tcd.ie/ncooper
Keywords: NRI
net relatedness index
NTI
nearest taxon index
possum
squirrel
monkey
community phylogenetics
Issue Date: 2008
Publisher: The Royal Society
Citation: Cooper, N, Rodriguez, J, Purvis, A, A common tendency for phylogenetic overdispersion in mammalian assemblages, Proceedings Of The Royal Society B-Biological Sciences, 275, 2008
Series/Report no.: Proceedings Of The Royal Society B-Biological Sciences;275
Abstract: Competition has long been proposed as an important force in structuring mammalian communities. Although early work recognised that competition has a phylogenetic dimension, only with recent increases in the availability of phylogenies have true phylogenetic investigations of mammalian community structure become possible. We test whether the phylogenetic structure of 142 assemblages from three mammalian clades (New World monkeys, North American ground squirrels and Australasian possums) shows the imprint of competition. The full set of assemblages display a highly significant tendency for members to be more distantly-related than expected by chance (phylogenetic overdispersion). The overdispersion is also significant within two of the clades (monkeys and squirrels) separately. This is the first demonstration of widespread overdispersion in mammal assemblages and implies an important role for either competition between close relatives where traits are conserved, habitat filtering where distant relatives share convergent traits, or both.
Description: PUBLISHED
URI: http://dx.doi.org/10.1098/rspb.2008.0420
http://hdl.handle.net/2262/64936
Appears in Collections:Zoology (Scholarly Publications)

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