EPO Biol., Univ. Clonal trees, which currently reproduce by vegetative layering, are expected to produce seed and pollen if sufficient warming occurs. Consistent sexual reproduction in the future would support predictions of biome response to polar warming. N.M. Tchebakova, R. Leemans, Clim. The vegetation model is used to predict changes corresponding to CO 2 doubling projections of four GCMs.
Results show similar trends in all four cases, although there is disagreement in important details.
It is not clear from the projections whether the projected warming will result in drastic or benign vegetation change. L.A. Joyce et al., Clim. The models' responses to CO 2 are qualitatively different because TEM includes feedbacks between temperature and ecosystem processes. 4512 McMurry Ave. W.C. Johnson, ibid.