NARRS Data 2007 - 2013
Citation
Amphibian and Reptile Conservation (2017). NARRS Data 2007 - 2013. Occurrence dataset https://doi.org/10.15468/xibghu accessed via GBIF.org on 2024-04-28.Description
Data collected under the National Amphibian and Reptile Recording Scheme (NARRS) between its inception in 2007 and 2011. Registered volunteers survey random squares to agreed, repeatable protocols in order to generate national estimates of site occupancy for all widespread amphibian and reptile species. Absences (negative results) are also recorded (e.g. a NARRS amphibian survey where no amphibians were found will show in the dataset as no amphibians recorded at that location in that year). A longer description of the protocols can be found at www.narrs.org.uk.Purpose
dataset.purposeSampling Description
Quality Control
Confidence in the data is high. These data were collected to agreed, robust protocols collected by registered volunteers (usually) trained and experienced in the techniques.Method steps
- See www.narrs.org.uk for details. Amphibian data is captured using (i) visual survey, (ii) netting (iii) night torching and (iv) bottle trapping where experienced and appropriate. Reptile data is captured using (i) visual survey and (ii) surveys of existing and artificial refugia. Four survey visits are recommended to each survey square within a given year in order to have high confidence of true absences.
Taxonomic Coverages
Geographic Coverages
United Kingdom. Sparsely populated areas show poorer coverage. Surveys are conducted within assigned 1km OSGB national grid squares which should be taken as the gross resolution of the survey data.
Bibliographic Citations
Contacts
originatorAmphibian and Reptile Conservation
655A Christchurch Road, Boscombe,
Bournemouth,
BH1 4AP
Dorset
Telephone: 01202 391319
email: enquiries@arc-trust.org
homepage: http://www.arc-trust.org/
metadata author
Amphibian and Reptile Conservation
655A Christchurch Road, Boscombe,
Bournemouth,
BH1 4AP
Dorset
Telephone: 01202 391319
email: enquiries@arc-trust.org
homepage: http://www.arc-trust.org/
distributor
NBN Atlas
Broadway Business Centre, 32a Stoney Street, Lace Market
Nottingham
NG1 1LL
Nottinghamshire
GB
email: admin@nbnatlas.org
John Wilkinson
administrative point of contact
email: johnw.wilkinson@arc-trust.org