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An assessment of phylogenetic tools for analyzing the interplay between interspecific interactions and phenotypic evolution.

Drury, Jonathan P. and Grether, Gregory F. and Garland Jr., Theodore and Morlon, Hélène (2018) 'An assessment of phylogenetic tools for analyzing the interplay between interspecific interactions and phenotypic evolution.', Systematic biology., 67 (3). pp. 413-427.

Abstract

Much ecological and evolutionary theory predicts that interspecific interactions often drive phenotypic diversification and that species phenotypes in turn influence species interactions. Several phylogenetic comparative methods have been developed to assess the importance of such processes in nature; however, the statistical properties of these methods have gone largely untested. Focusing mainly on scenarios of competition between closely-related species, we assess the performance of available comparative approaches for analyzing the interplay between interspecific interactions and species phenotypes. We find that many currently used statistical methods often fail to detect the impact of interspecific interactions on trait evolution, that sister-taxa analyses are particularly unreliable in general, and that recently developed process-based models have more satisfactory statistical properties. Methods for detecting predictors of species interactions are generally more reliable than methods for detecting character displacement. In weighing the strengths and weaknesses of different approaches, we hope to provide a clear guide for empiricists testing hypotheses about the reciprocal effect of interspecific interactions and species phenotypes and to inspire further development of process-based models. [Character displacement; competition; interspecific interactions; phylogenetic comparative methods; trait evolution.]

Item Type:Article
Full text:(AM) Accepted Manuscript
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Status:Peer-reviewed
Publisher Web site:https://doi.org/10.1093/sysbio/syx079
Publisher statement:This is a pre-copyedited, author-produced version of an article accepted for publication in Systematic biology following peer review. The version of record Drury, J.P., Grether, G.F., Garland Jr., T. & Morlon, H. (2018). An assessment of phylogenetic tools for analyzing the interplay between interspecific interactions and phenotypic evolution. Systematic Biology 67(3): 413-427 is available online at: https://doi.org/10.1093/sysbio/syx079
Date accepted:21 September 2017
Date deposited:21 December 2017
Date of first online publication:04 October 2017
Date first made open access:04 October 2018

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