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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
Phylogenetic diversity metrics for ecological communities: Integrating species richness, abundance and evolutionary history
Ecology Letters, Volume 13, No. 1, Year 2010
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Description
Phylogenetic information is increasingly being used to understand the assembly of biological communities and ecological processes. However, commonly used metrics of phylogenetic diversity (PD) do not incorporate information on the relative abundances of individuals within a community. In this study, we develop three indices of PD that explicitly consider species abundances. First, we present a metric of phylogenetic-abundance evenness that evaluates the relationship between the abundance and the distribution of terminal branch lengths. Second, we calculate an index of hierarchical imbalance of abundances at the clade level encapsulating the distribution of individuals across the nodes in the phylogeny. Third, we develop an index of abundance-weighted evolutionary distinctiveness and generate an entropic index of phylogenetic diversity that captures both information on evolutionary distances and phylogenetic tree topology, and also serves as a basis to evaluate species conservation value. These metrics offer measures of phylogenetic diversity incorporating different community attributes. We compare these new metrics to existing ones, and use them to explore diversity patterns in a typical California annual grassland plant community at the Jasper Ridge biological preserve. © 2009 Blackwell Publishing Ltd/CNRS.
Authors & Co-Authors
Cadotte, Marc W.
United States, Santa Barbara
University of California, Santa Barbara
Canada, Toronto
University of Toronto
Davies, T. Jonathan
United States, Santa Barbara
University of California, Santa Barbara
Regetz, James
United States, Santa Barbara
University of California, Santa Barbara
Kembel, Steven W.
United States, Berkeley
University of California, Berkeley
United States, Eugene
University of Oregon
Cleland, Elsa E.
United States, Santa Barbara
University of California, Santa Barbara
United States, La Jolla
University of California, San Diego
Statistics
Citations: 286
Authors: 5
Affiliations: 5
Identifiers
Doi:
10.1111/j.1461-0248.2009.01405.x
ISSN:
14610248