publication . Article . 2015

Differential effects of spatial network structure and scale on population size and genetic diversity of the ninespine stickleback in a remnant wetland system

Ishiyama, Nobuo; Koizumi, Itsuro; Yuta, Teru; Nakamura, Futoshi;
Open Access English
  • Published: 01 Apr 2015 Journal: Freshwater biology, volume 60, issue 4, pages 733-744 (issn: 0046-5070, Copyright policy)
  • Publisher: Wiley-Blackwell
Abstract
The management of population size and genetic diversity in fragmented landscapes is the central issue in conservation biology. Functional connectivity between remnant habitat patches affects these parameters. However, the functional connectivity for genetic diversity would be characterised by a greater spatial scale than population size even within the same habitat network. The reason for this difference is that while dispersal frequency generally decreases with increasing distance, only a few immigrants may effectively contribute to gene flow, whereas a certain number of dispersers may be required to influence population abundance. Here, we investigated the eff...
Subjects
mesheuropmc: human activities
free text keywords: graph theory, landscape connectivity, population conservation, wetland network, landscape genetics
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Article . 2015
Provider: JAIRO
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