Collating and mapping water vole survey records from across the UK to inform water vole conservation.

The water vole (Arvicola amphibius) is Britain's fastest declining wild mammal and has disappeared from many parts of the country where it was once common. It is threatened by habitat loss, but has suffered particularly from predation by the introduced American mink (Neovison vison).

The National Water Vole Database and Mapping Project was established in 2008 by the UK Water Vole Steering Group as a way to collate water vole survey records, map the distribution of this species and identify important areas for water vole conservation. The Project also collates and maps data on the American mink.

The Project is managed by The Wildlife Trusts, with work delivered by a Project Officer based at Hampshire & Isle of Wight Wildlife Trust.  

Project outputs

A Project report is published annually and the latest outputs are available here.

Most recent
The latest report was published in 2014 and covers data up to the end of 2012. 

Currently in production
The 2015 report will be published later this year and includes data up to the end of 2013.

To contribute data
You'll find information on how to do this here



The next update to the National Water Vole Database and Mapping Project has been funded by the People's Trust for Endangered Species.