Erratum to: Are alien plants more competitive than their native conspecifics? A test using Hypericum perforatum L.

Oecologia (2003) 137:211–215

Fig. 1 was incorrect and is given correctly here

Fig. 1

Mean aboveground biomass (+SE) of Hypericum perforatum plants from native European populations, from introduced North American populations that have either a history of exposure to biocontrol (western North America) or have never been exposed to biocontrol (central North America). All plants were grown under the same greenhouse conditions with or without competition with Lolium multiflorum. The three bars to the left are the regional means that were computed by taking the mean of the population means for each region. Native mean value for European populations; Intro, Biocont Mean value for western North American populations; Intro, NoBiocont mean value for central North American populations