Ed HawkinsDec 6, 2022

The abundance of moths in the UK has declined by 86% since 1970.

The world is changing from green to grey.

Part of a new series of 'biodiversity stripes' by Miles Richardson at http://www.BiodiversityStripes.info

BIODIVERSITY STRIPES

The biodiversity stripes show the variety and abundance of nature over time. From greater in green to less in grey.

BIODIVERSITY STRIPES
Show threadTim Blackburn
@ed_hawkins Hi Ed, do you have a source for this % you could point me to? Thanks!
Dec 7, 2022 at 6:56amWeb
Show threadEd HawkinsDec 7, 2022
@mothyblackburn Yes, it's the C4a index from JNCC: https://jncc.gov.uk/our-work/ukbi-c4a-species-abundance/
UKBI - C4a. Species - abundance | JNCC - Adviser to Government on Nature Conservation

Show threadTim BlackburnDec 7, 2022
@ed_hawkins Ah, OK. By the looks of it this is a highly biased list of species, almost all of conservation concern. Proper moth people would know better than me... The State of Britain's Moths report suggests an overall decline of 33% from the late 1960s for a much wider selection of species. Still bad, but nowhere near 86%.
Show threadEd HawkinsDec 7, 2022
@mothyblackburn Thanks - point taken. Should at least make the distinction between all moths and moths of conservation concern.