Abstract
Water voles have suffered large population declines in the United Kingdom due to habitat degradation and predation by invasive American mink. Habitat restoration of floodplain wetlands could help to reverse this decline, but the detailed habitat preferences of water voles in these environments have not been well studied, and the impacts of restoration practices on water vole populations are not known. This study investigated the habitat preferences of water voles in a reconnected lowland river floodplain. The results show that water voles preferred wider water bodies, and taller and more diverse vegetation. The impact of flooding on water voles was also investigated by comparing their occurrence between two survey periods which were separated by large flood events, and by comparing distribution patterns before and after restoration. Contrary to previous reports, there was no observed negative impact of flood events on water vole distribution, which has slightly expanded since the floodplain was reconnected to the river in 2009. Overall this study demonstrates that restored wetlands can provide suitable habitat for water voles, and provides guidance on some of the factors which should be considered when designing floodplains for water vole conservation.
Published Version
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