Landscape determinants of fine-scale genetic structure of a small rodent in a heterogeneous landscape (Hluhluwe-iMfolozi Park, South Africa)

Russo, Isa-Rita ORCID: https://orcid.org/0000-0001-9504-3633, Sole, Catherine L., Barbato, Mario, von Bramann, Ullrich and Bruford, Michael William ORCID: https://orcid.org/0000-0001-6357-6080 2016. Landscape determinants of fine-scale genetic structure of a small rodent in a heterogeneous landscape (Hluhluwe-iMfolozi Park, South Africa). Scientific Reports 6 , 29168. 10.1038/srep29168

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Abstract

Small mammals provide ecosystem services, acting, for example, as pollinators and seed dispersers. In addition, they are also disease reservoirs that can be detrimental to human health and they can also act as crop pests. Knowledge of their dispersal preferences is therefore useful for population management and landscape planning. Genetic data were used alongside landscape data to examine the influence of the landscape on the demographic connectedness of the Natal multimammate mouse (Mastomys natalensis) and to identify landscape characteristics that influence the genetic structure of this species across a spatially and temporally varying environment. The most significant landscape features shaping gene flow were aspect, vegetation cover, topographic complexity (TC) and rivers, with western facing slopes, topographic complexity and rivers restricting gene flow. In general, thicket vegetation was correlated with increased gene flow. Identifying features of the landscape that facilitate movement/dispersal in M. natalensis potentially has application for other small mammals in similar ecosystems. As the primary reservoir host of the zoonotic Lassa virus, a landscape genetics approach may have applications in determining areas of high disease risk to humans. Identifying these landscape features may also be important in crop management due to damage by rodent pests.

Item Type:	Article
Date Type:	Published Online
Status:	Published
Schools:	Biosciences
Subjects:	Q Science > QL Zoology
Publisher:	Nature Publishing Group
ISSN:	2045-2322
Date of First Compliant Deposit:	19 July 2016
Date of Acceptance:	13 June 2016
Last Modified:	06 Jan 2024 03:04
URI:	https://orca.cardiff.ac.uk/id/eprint/92955

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