The biogeographic consequences of forecast changes in the global environment: Individual species’ potential range changes

摘要: Present predictions of the impact increasing greenhouse gases on climate suggest large changes in high latitudes, particular winters are likely to become warmer. If these forecast do occur as rapidly predicted then vegetation regions is be severe disequilibrium with changing climate. In past species have responded individualistically (Huntley 1991) change and there no reason suppose they would not continue so future. Many migrated continually response continuous climatic & Webb 1989). Different together present-day plant assemblages could respond therefore very different ways a species-specific limit either exceeded or longer reached. Some may die out quickly, others remain longer, opportunities arise for new migrate in, transient groups exist short long periods time continues change. Landscapes that seem some sort dynamic equilibrium at present result unstable. Too rapid coupled wide scale human-induced land use lead delays arriving into suitable areas implying decline both diversity biomass vulnerable landscapes.