British earthworm identification guide and survey
Green worm, Allolobophora chlorotica
An easy-to-use identification guide to live earthworms has been developed by the Natural History Museum in collaboration with Natural England, the Royal Horticultural Society and the Field Studies Council.
There are at least 25 species of British earthworm. Despite considerable research into earthworm biology in recent decades, many basic questions about their ecology and distribution remain unanswered.
National soil and earthworm survey
The laminated colour field guide allows non-specialists to identify the common species of British earthworms. It is being used to support a national survey developed by the Open Air Laboratories Network (OPAL) and the results will help answer questions like which earthworm species are found in what parts of the country, and which species live in what habitats.
OPAL earthworm surveyResults so far
Over 4,300 people have submitted their results online since the soil and earthworm survey launched in 2009. It is one of six surveys that OPAL is running across England to learn more about the state of our environment. Find out what's been discovered so far.
Survey resultsToolbox
