Biodiversity conservation - Effects of changes in climate and land use

Arising from: C. D. Thomas et al. Nature427, 145–148 (2004)); see also communication from Thuiller et al. and communication from Harte et al.; Thomas et al. reply Thomas et al.1 argue, contrary to Sala et al.2, that climate change poses an equal or greater threat to global biodiversity than land-use change. We contest this claim, however, on the grounds that Thomas et al. incorrectly apply species–area relationships.