Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/111717
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Type: Journal article
Title: Standardised genetic diversity-life history correlates for improved genetic resource management of Neotropical trees
Author: Lowe, A.
Breed, M.
Caron, H.
Colpaert, N.
Dick, C.
Finegan, B.
Gardner, M.
Gheysen, G.
Gribel, R.
Harris, J.
Kremer, A.
Lemes, M.
Margis, R.
Navarro, C.
Salgueiro, F.
Villalobos-Barrantes, H.
Cavers, S.
Citation: Diversity and Distributions, 2018; 24(6):730-741
Publisher: Wiley
Issue Date: 2018
ISSN: 1366-9516
1472-4642
Statement of
Responsibility: 
Andrew J. Lowe, Martin F. Breed, Henri Caron, Nathalie Colpaert, Christopher Dick, Bryan Finegan, Mike Gardner, Godelieve Gheysen, Rogério Gribel, J. Berton C. Harris, Antoine Kremer, Maristerra R. Lemes, Rogerio Margis, Carlos M. Navarro, Fabiano Salgueiro, Heidy M. Villalobos-Barrantes, Stephen Cavers
Abstract: Aim: Life history traits and range size are key correlates of genetic diversity in trees. We used a standardized sampling protocol to explore how life history traits and range size relate to the magnitude, variance and structuring (both between‐ and within‐population) of genetic diversity in Neotropical tree species. Location: The Neotropics Methods: We present a meta‐analysis of new population genetic data generated for 23 Neotropical tree species (=2,966 trees, 86 populations) across a shared and broad geographic area. We compared established population genetic metrics across these species (e.g., genetic diversity, population structure, fine‐scale genetic structure), plus we estimated the rarely used variance in genetic diversity among populations. We used a multivariate, maximum likelihood, multimodel inference approach to explore the relative influence of life history traits and range size on patterns of neutral genetic diversity. Results: We found that pioneer and narrow range species had lower levels but greater variance in genetic diversity—signs of founder effects and stronger genetic drift. Animal‐dispersed species had lower population differentiation, indicating extensive gene flow. Abiotically dispersed and pioneer species had stronger fine‐scale genetic structure, suggesting restricted seed dispersal and family cohort establishment. Main conclusions: Our multivariable and multispecies approach allows ecologically relevant conclusions, since knowing whether one parameter has an effect, or one species shows a response in isolation, is dependent on the combination of traits expressed by a species. Our study demonstrates the influence of ecological processes on the distribution of genetic variation in tropical trees, and will help guide genetic resource management, and contribute to predicting the impacts of land use change.
Keywords: Effective population size; founder effects; gene flow; genetic resource management; seed dispersal
Rights: © 2018 John Wiley & Sons Ltd
RMID: 0030083084
DOI: 10.1111/ddi.12716
Grant ID: http://purl.org/au-research/grants/arc/DE150100542
http://purl.org/au-research/grants/arc/DP150103414
Appears in Collections:Earth and Environmental Sciences publications

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