Water Vole (Arvicola amphibius)

Water Vole (Arvicola amphibius)

Arvicola amphibius

Avg Lifespan

0.5 - 1.5 years

Size

Length: 14 - 22cm; Tail: 9.5 - 14cm; Weight: 150 - 300g

Status

Native and listed as Endangered on the England Red List for Mammals. Protected in the UK under the Wildlife and Countryside Act, (1981). Priority Species under the UK Post-2010 Biodiversity Framework.

Overview

Similar in size to brown rats, water voles are distinguished by their blunt noses and rounded ears. They also have chestnut-brown fur and a furry tail. However, Scotland’s water voles appear darker, often having a black coat. They inhabit burrows along the banks of slower-flowing watercourses. They like to sit and eat in the same place, so piles of nibbled grass or stems could be found by the water’s edge. With a short lifespan, water voles breed quickly, with females producing 3–4 litters during the breeding season, which typically runs from March to September.

Still widespread throughout mainland UK, though numbers have declined significantly. They are absent from the Channel Islands, Isles of Scilly, Scottish islands, Northern Ireland and the Isle of Man. Populations in Britain have faced severe declines due to predation by non-native American mink, as well as habitat degradation and pollution. 

Sampling Advice

  • A faecal sample with sufficient biological material to be used as a reserve is required in case the extraction is unsuccessful the first time: the fresher a sample is, the more likely the test will be able to extract viable DNA.
  • Other viable sample types include fur/hair, tissue and blood.
  • We are currently also in the process of developing a method for eDNA analysis of water samples for water vole. *If you are interested in this services, please fill in the contact form below*

Surveying Season

Optimal survey period =
Sub-optimal survey period =

Biological

Faecal samples and other biological surveys can be undertaken at any time of the year.

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Related Kit/Product

Interested in eDNA analysis for water vole?

If you are interested in hearing more about the development of our water vole eDNA assay, please fill in your contact information here and someone will be in touch to discuss this further. Thank you.