Conference Proceedings

Revisiting heritable variation and limits to species distribution: Recent developments

Ary Hoffmann, Vanessa Kellermann

Israel Journal of Ecology and Evolution | BRILL ACADEMIC PUBLISHERS | Published : 2006

Abstract

There are several evolutionary reasons why species distributions are locally and geographically limited, and these mostly revolve around gene flow and levels of genetic variation in populations. While there has been progress in developing models assessing the impact of gene flow, empirical data on hypotheses about factors limiting distributions remain rare. A few recent plant studies have highlighted that levels of additive genetic variance are not limiting, suggesting a role for gene flow. However, some animal studies, mostly on Drosophila species, have refocused attention on heritable variation as an evolutionary reason for distribution limits. There is a need for comparative studies that ..

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