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  3. DBRC Arvicola amphibius records 1925 - 2016

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DBRC Arvicola amphibius records 1925 - 2016

Derbyshire Biological Records Centre

Description

This dataset comprises all of the water vole records held by Derbyshire Wildlife Trust and the former Derby Biological Records Centre and covers the period 192-2016.

Geographic Description

The data relates to the administrative county of Derbyshire and records have been collected from across the entire County. However, in recent years there has been a focus on key monitoring sites in the County.

The records are mainly site based, and as such many have been entered onto the Trusta^??s database using a six figure grid reference for the site. However, as sites comprise lengths of watercourse some will begin and end in different monads, tetrads or hectads.

Purpose

Most of the records have been captured during site surveys aimed specifically at improving knowledge and understanding of water vole distribution and population trends in Derbyshire.

Data quality

There is a medium to high level of confidence about the accuracy of the records within this dataset. For a small subset of records confirmed presence of water vole can only be considerd possible and further checks on these records are ongoing. The dataset has a comprehensive geographic coverage and records have been checked by DWT. This has resulted in the correction of obvious input errors (after reference to the primary data source) and highlighted where records required additional information in order to have a high confidence in their accuracy.

Any records with a low level of confidence remaining after validation procedures have been excluded. Given the validation procedures and cautionary approach which has been adopted it is considered that there is a reasonable level of confidence in the accuracy of the dataset. This dataset has been checked with the NBN Record Cleaner.

Methods

The dataset has been validated and maintained by Derbyshire Wildlife Trust and for the past 15 years training has been provided to field surveyors to provide them with the skills they need to identify positive field signs and to ensure interpretation of field signs is consistent. Many of the records have been generated as part of an ongoing monitoring programme focused on key sites across the County. Typically surveyors visit their site several times a year and walk a set distance along the watercourse searching for evidence of water vole activity. Most of this work is undertaken by volunteers. The data is initially stored in an Access database before being translated into the NBN format. Records are included where there are suffieicnt field signs or where a water vole has been seen.

Citation

Derbyshire Biological Records Centre ([Insert download year]). DBRC Arvicola amphibius records 1925 - 2016. Occurrence dataset on the NBN Atlas

Rights

CC-BY-NC

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Date created: 2017-03-30
Metadata updated: 2023-02-07
Most recent data published: 2023-02-07

Citations

DOI https://doi.org/10.15468/ok7byr    58 citations for these data

Licence

Creative Commons, with Attribution, Non-commercial v4.0 4.0 Creative Commons, with Attribution, Non-commercial v4.0 4.0

Temporal scope

1925-01-01 - 2016-02-27

Location

Main Street
Derbyshire
DE4 4LR 

khuston@derbyshirewt.co.uk

Contact

Kieron Huston
email this contact

Web site

Visit the data resource's website

NBN Atlas Partnership

National Biodiversity NetworkAtlas of Living AustraliaNatural EnglandNatural Resources WalesScottish Environment Protection AgencyWelsh GovernmentScottish Natural HeritageNorthern Ireland Environment Agency
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