title: Comment on "Changes in climatic water balance drive downhill shifts in plant species' optimum elevations".
abstract: Crimmins et al. (Reports, 21 January 2011, p. 324) presented a study that purports to show that plants in California are shifting downslope to maintain a constant water deficit. We argue that the results are limited in scope to just a handful of woody species in one part of the state and are confounded by methodological errors.
authors: Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ 08544, USA. adamwolf@princeton.edu
authors: Adam
authors: A
authors: Wolf
authors: William R L
authors: WR
authors: Anderegg
mesh_terms: D000531:Altitude; D057231:Climate Change; D017753:Ecosystem; D010944:Plants; D014867:Water
chemical_list: D014867:Water