Author Affiliations +
Jaume Terradas,* Josep Peñuelas**
*Jaume Terradas Center for Ecological Research and Forestry Applications—Department of Animal Biology, Plant Biology and Ecology Edifici C Universitat Autònoma de Barcelona 08913 Bellaterra Spain jaume.terradas@uab.cat
**Josep Peñuelas Center for Ecological Research and Forestry Application—National Research Council of Spain Edifici C Universitat Autònoma de Barcelona 08913 Bellaterra Spain josep.penuelas@uab.cat