Key Facts about: Wildlife
Populations of moths
Great Britain
In northern Britain, just over a fifth of the 274 species are classified as endangered (23 species) or vulnerable (35 species) as defined by the IUCN (The World Conservation Union).
In southern Britain, just over a quarter of the 298 species are classified as endangered (12 species) or vulnerable (66 species). Categories are based on annual rates of change estimated from long-term trends from 1968–2002.
The criteria for the categories are:
- endangered = decline of more than 50 per cent;
- vulnerable = decline between 30 and 49 per cent;
- decreasing = decline between 0 and 30 per cent;
- increasing = increase of more than 0 per cent.
In Detail:
Further Information:
- Source:
- Butterfly Conservation, Centre for Ecology and Hydrology (Wallingford) (CEH)
- Key Facts:
- Populations of butterflies
Data Tables:
Download Chart Data: Microsoft Excel Population of butterflies
- Internet Links:
- Butterfly Conservation
- Centre for Ecology and Hydrology (CEH)
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Page last modified: 27 October 2006
Page published: 27 October 2006