We use cookies to collect information about how you use data.gov.uk. We use this information to make the website work as well as possible.
You can change your cookie settings at any time.
We’re making changes to data.gov.uk — Find out more
Site indices, as a relative measure of the actual population size, for UK butterfly species calculated from data from the UK Butterfly Monitoring Scheme (UKBMS). Site indices are a relative rather...