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Water vole survey of Beinn Eighe National Nature Reserve - October 2011

Dataset homepage

Citation

NatureScot (2023). Water vole survey of Beinn Eighe National Nature Reserve - October 2011. Occurrence dataset https://doi.org/10.15468/geg9y3 accessed via GBIF.org on 2023-09-23.

Description

SNH commissioned Waterside Ecology to undertake a survey within Beinn Eighe National Nature Reserve (NNR) to identify and map the distribution of water vole colonies and identify those potentially at greatest risk of extinction. A total of 19 separate locations were found to have current, recent or old signs of water vole activity, 8 of which were considered to have currently active water vole colonies. The dataset includes absence records. The distribution of water vole colonies and suitable habitat within the Beinn Eighe NNR had previously been largely unknown.

Purpose

The aims of the water vole survey were to: Establish presence/absence of water voles along watercourses in the SNH Beinn Eighe NNR property; Assess the habitat quality for water voles along the same watercourses; Identify those water vole colonies considered to be at greatest risk of extinction. The findings were incorporated into a long-term management strategy for water vole conservation within the NNR.

Sampling Description

Quality Control

There is a high degree of confidence - all signs were noted by experienced surveyors.

Method steps

  1. All sections of watercourse with level ground or a gentle slope (<3% gradient) within the NNR were included in the survey. The banks of each watercourse were surveyed and signs of water vole activity were noted. Where access and water depth allowed, the search was conducted from the channel itself. Water vole signs separated by less than 200 m within one watercourse were considered to be within one colony, as adult males are known to have a home range of up to 200 m (Capreolus 2005; Sah 1998). Water vole habitat was assessed longitudinally as a series of contiguous survey sections. For the purposes of recording, habitat section breaks were inserted where the habitat type changed significantly. If habitat remained uniform section breaks were created approximately every 200 m. Each survey section was ranked in one of three categories: optimal (O), sub-optimal (SO) or unsuitable (US) water vole habitat.

Taxonomic Coverages

Geographic Coverages

The survey covered the SNH Beinn Eighe NNR property. Apart from a small side tributary of the Allt Coire an Laoigh that enters the Torridon River, all watercourses surveyed were within the River Ewe catchment.

Bibliographic Citations

Contacts

originator
NatureScot
Great Glen House, Leachkin Road
INVERNESS
IV3 8NW
Telephone: 01463 725000
homepage: https://www.nature.scot/
metadata author
NatureScot
Great Glen House, Leachkin Road
INVERNESS
IV3 8NW
Telephone: 01463 725000
homepage: https://www.nature.scot/
distributor
NBN Atlas
Unit F, 14 - 18 St Mary's Gate, Lace Market
Nottingham
NG1 1PF
Nottinghamshire
GB
email: admin@nbnatlas.org
Colin McLeod
administrative point of contact
email: Colin.McLeod@nature.scot
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