Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 372423
Title Dispersal in Mastomys natalensis mice: use of fine-scale genetic analyses for pest management
Author(s) Hooft, W.F. van; Cosson, J.F.; Vibe-Petersen, S.; Leirs, H.
Source Hereditas 145 (2008)6. - ISSN 0018-0661 - p. 262 - 273.
DOI https://doi.org/10.1111/j.1601-5223.2008.02089.x
Department(s) Resource Ecology
PE&RC
Publication type Refereed Article in a scientific journal
Publication year 2008
Keyword(s) sex-biased dispersal - african rodent - differentiation measure - population-structure - paternity inference - peromyscus-leucopus - microsatellite loci - f-statistics - tanzania - density
Abstract Mastomys natalensis is the major pest rodent in sub-Saharan Africa. In this study, population genetic techniques were used to gain new insights into its dispersal behaviour, a critical parameter in pest management. Using 11 microsatellites, 272 individuals from a 300 ha area in Tanzania were genotyped. Genetic diversity was high, with no isolation by distance and little differentiation between field plots far apart, indicating a large effective population size and high dispersal rates in agreement with ecological observations. On the other hand, genetic differentiation between nearby field plots, isolation by distance within a single field plot and kin clustering were also observed. This apparent contradiction may be explained by yearly founder effects of a small number of breeding individuals per square area, which is consistent with the presence of linkage disequilibrium. An alternative, not mutually exclusive explanation is that there are both dispersing and sedentary animals in the population. The low-density field plots were characterized by low relatedness and small genetic distances to other field plots, indicating a high turnover rate and negative density-dependent dispersal. In one field plot female-biased dispersal was observed, which may be related to inbreeding avoidance or female competition for resources. Most juveniles appeared to be local recruits, but they did not seem to stay in their native area for more than two months. Finally, possible implications for pest management are discussed
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