Does population distribution matter? Influence of a patchy versus continuous distribution on genetic patterns in a wind-pollinated shrub
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- 作者：Tanya M. Llorens ; Sarah-Louise Tapper ; David J. Coates ; Shelley McArthur ; Margaret Hankinson and Margaret Byrne
- 刊名：Journal of Biogeography
- 出版年：2017
- 出版时间：February 2017
- 年：2017
- 卷：44
- 期：2
- 页码：361-374
- 全文大小：440K
- ISSN：1365-2699
文摘
Uniform spatial population distributions are predicted to result in lower among-population genetic differentiation and higher within-population genetic diversity than naturally patchy distributions, but there have been surprisingly few attempts to isolate this effect from confounding factors. We studied the widespread wind-pollinated shrub Allocasuarina humilis that is common in a geologically stable landscape characterized by long-term population persistence to test the influence of semi-continuous versus patchy population distributions on genetic patterns. We also investigated whether A. humilis shows the high population connectedness and genetic diversity typically associated with wind pollination, a relatively uncommon and little-studied syndrome in this landscape.