How climate change affects hedgehogs
13 March 2012
Gardeners can help find out if hedgehogs are emerging from hibernation earlier because of climate change – and what impact that is having on populations.
The People's Trust for Endangered Species (PTES) wants to update research carried out 40 years ago which showed that hedgehogs in the south west of England came out of hibernation up to three weeks earlier than those living in Scotland – suggesting a link between climate and hibernation patterns.
'Mild weather can delay hedgehogs entering into hibernation or elicit premature awakening,' said hedgehog expert Dr Pat Morris, who carried out the research. 'That impacts on the creature's fat reserves and breeding times and consequently affects the long-term survival of the species.'
It's hoped that by comparing data collected by members of the public this year with the last set of statistics collected in the 1970s, any changes in hibernation patterns will become clear. A survey last year found hedgehog populations have fallen by at least a quarter over the last decade and it's thought the unusual weather of recent years may be playing a part.
To join in with the survey, record any sightings of hedgehogs as they emerge in spring after hibernation, including their location and any details about their health. Results can be recorded on the charity's website (www.hedgehogstreet.org) until the end of August.