Dartford Warblers winning uphill battle16 Mar 2011
Recent research by the RSPB, in partnership with the BTO, found that this cold-sensitive species has responded to a warming climate. A paper published in Ibis reports on the results and explains that the combined effects of a changing climate and topography may have influenced the pattern of in-filling in the existing range. Colonisation of new areas may have been facilitated by a combination of increased dispersal pressure and warming of climate, making occupancy at higher altitudes possible. Read the abstract of the paper.