Our new review of the status of Britain's spiders has just been published by Natural Resources Wales (the commissioning agency). It features a 'Red List' of species regarded as being at threat of extinction. The allocation of internationally agreed statuses shows that 16% of our species are threatened; 18 species are considered Critically Endangered, 30 Endangered and 54 Vulnerable. Three species are thought to have become extinct.
The new review includes for the first time an Amber List of species that are not yet considered at risk of extinction but for which the severity of their decline give cause for conservation concern. Species are also categorised by GB Rarity Status, defined largely by restricted distributions; Nationally Rare species occur in 15 or fewer hectads and Nationally Scarce species in 16 to 100 hectads.
This review highlights the pressing need for greater attention to be paid to spider conservation, and to the research and survey work needed to underpin it. It was based on the work of many dedicated volunteers who contributed their records to the Spider Recording Scheme. Please make your records count for the future by contributing to the Scheme.