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Phylogenetic Inference of Reciprocal Eects between Geographic Range Evolution and Diversication

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posted on 20.09.2012 by Emma E. Goldberg, Lesley L. Lancaster, Richard H. Ree
Geographic characters|traits relating to the spatial distribution of a species| may both aect and be aected by processes associated with lineage birth and death. This is potentially confounding to comparative analyses of species distributions because current models do not allow reciprocal interactions between the evolution of ranges and the growth of phylogenetic trees. Here we introduce a likelihood-based approach to estimating regiondependent rates of speciation, extinction, and range evolution from a phylogeny, using a new model in which these processes are interdependent. We demonstrate the method with simulation tests that accurately recover parameters relating to the mode of speciation and source-sink dynamics. We then apply it to the evolution of habitat occupancy in Californian plant communities, where we nd higher rates of speciation in chaparral than in forests and evidence for expanding habitat tolerances.

Funding

This work was supported by the National Science Foundation (grant numbers DEB- 0919089 and DEB-0614108 for E.E.G. and R.H.R., respectively), and by the National Center for Ecological Analysis and Synthesis, a center funded by the National Science Foundation (grant number DEB-0072909 for L.T.L.).

History

Publisher Statement

© The Author(s) 2011. Published by Oxford University Press, on behalf of the Society of Systematic Biologists. All rights reserved. This is a preprint of an article whose final and definitive form has been published in Systematic Biology (c) 2012 Society of Systematic Biologists: Systematic Biology is available online at informaworld. DOI:10.1093/sysbio/syr046

Publisher

Oxford University Press

Language

en_US

issn

1063-5157

Issue date

12/01/2011

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