This research shows that although brown argus butterfly species may have initially been able to respond to climate change by moving northwards, the result has been that the butterflies rely on a more specialised diet. This is worrying as more specialist species are less equipt to deal with further changes in climate.

Journal reference:

James Buckley, Jon R. Bridle. Loss of adaptive variation during evolutionary responses to climate change. Ecology Letters, 2014; DOI: 10.1111/ele.12340