Crimmins et al. (Reports, 21 January 2011, p. 324) attributed an apparent downward elevational shift of California plant species to a precipitation-induced decline in climatic water deficit. We show that the authors miscalculated deficit, that the apparent decline in species’ elevations is likely a consequence of geographic biases, and that unlike temperature changes, precipitation changes should not be expected to cause coordinated directional shifts in species’ elevations.
|Publication Subtype||Journal Article|
|Title||Comment on "Changes in climatic water balance drive downhill shifts in plant species' optimum elevations"|
|Publisher||American Association for the Advancement of Science|
|Publisher location||Washington, D.C.|
|Contributing office(s)||Western Ecological Research Center|
|Google Analytic Metrics||Metrics page|