Butterfly populations are an important gauge of the health of local habitats and wider climate change. As families this weekend join the Big Butterfly Count, Faye Dobson explains what population changes mean, and how you can get involved.
According to a report by the Dorset-based charity Butterfly Conservation, 72 per cent of butterfly and moth species have declined in the last ten years, and 54 per cent have decreased in the UK. Even the abundance of common garden butterflies, such as the Red Admiral, has dropped by 24 per cent.
Butterflies react extremely quickly to even minor changes in the environment, making them both a good indicator of biodiversity and providing an early warning system for other reductions in wildlife. As a result, they are now the best-monitored group of insects in the world.
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