Campaign asks wildlife enthusiasts to visit local woodland to record number of speckled woods and other butterflies
Wildlife lovers are being asked to spend 15 minutes in a wood this week to chart the spread of the speckled wood (Pararge aegeria), Britain’s most successful butterfly.
The speckled wood is one of a handful of species that appear to be benefitting from climate change, recently colonising East Anglia, the Midlands and much of northern England, increasing in abundance by 84% over the past 40 years. The southern population has expanded northwards at an average of four miles a year since the 1970s.
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Source: Guardian Environment