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GCN HSI calculator (ARGUK)

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GCN HSI calculator (ARGUK)

spreadsheet GCN HSI calculator (ARGUK) Popular

Published on 29 March 2016 Modified on 27 June 2016 By Anonymous 37398 downloads

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ARGUK GCN HSI.xlsx

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Join our ARG UK youth panel

08 January 2026

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ARG UK Position Statement on reintroduction proposals

07 January 2026

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Where in the Wyre? - a new conservation programme for amphibians and reptiles in the Wyre Forest

10 October 2025

News

About us

Our Mission and Guiding Principles
ARG UK Safeguarding Policy Statement
Who we are
Our Team
Support us
Contact Us

Get involved

Local groups
Record your sightings
Projects & surveys
News
Useful links

ARG Resources

Resources for ARGs - volunteer, risk, safeguarding and lone working agreements
Great Crested Newt Habitat Suitability Index (HSI) (2)
Amphibian and Reptile Management Handbooks - published by Amphibian and Reptile Conservation
Data Protection for the ARG volunteer groups
The Benefits of Affiliation
Insurance scheme
ARG UK 100% Fund
ARG UK Logos
Local groups websites

Info & Advice

ARG UK Forms and Procedures
ARG UK Advice notes
ID guides
Survey & Monitoring
Educational Resources
Wildlife Gardening
Scientific & Technical Reports
GCN Licensing Reform
ARG UK Logo / Brand guidelines
Herpetofauna County Atlas
ARGWEB
Annual Review and Accounts

Amphibian and Reptile Groups of UK (ARG UK) is a registered charity (number 1165504) committed to the conservation of native amphibians and reptiles and their natural environment by supporting the development of a network of independent volunteer amphibian and reptile groups (ARGs).

With grateful thanks to our generous funders, partners and sponsors, who make it all possible:

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