New Phytologist 189 (2011), 902–908.
Since its publication, it has been brought to our attention that one of the citations in the References to Hallinger & Wilmking (2011) is incorrect, both in the year of publication and in the volume and page range. On page 902, Forbes et al., 2009 should read Forbes et al., 2010 and the full citation is:
Forbes BC, Macias Fauria M, Zetterberg P. 2010. Russian Arctic warming and ‘greening’ are closely tracked by tundra shrub willows. Global Change Biology 16: 1542–1554.
We apologize to our readers for this mistake.