Telegraph (UK): Butterflies are declining because they have become trapped in small pockets of countryside, unable to escape the effects of climate change, writes Richard Gray. Dr Rob Wilson, an ecologist at Exeter University, will tell a conference on climate change there this month that the break-up of suitable butterfly habitats by urban spread and agriculture is driving the “staggering” declines. He will say that while rising temperatures should in theory benefit butterflies by allowing species …