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Potential effects of climate change on tree species and ecosystem distribution in British Columbia Open Access


Author or creator
Hamann, A.
Wang, T.L.
Additional contributors
Spatial predictions
Climate envelope
British Columbia
Predictive vegetation mapping
Climate change
Species distributions and ranges
Bioclimatic analysis
Type of item
Journal Article (Published)
A new ecosystem-based climate envelope modeling approach was applied to assess potential climate change impacts on forest communities and tree species. Four orthogonal canonical discriminant functions were used to describe the realized climate space for British Columbia's ecosystems and to model portions of the realized niche space for tree species under current and predicted future climates. This conceptually simple model is capable of predicting species ranges at high spatial resolutions far beyond the study area, including outlying populations and southern range limits for many species. We analyzed how the realized climate space of current ecosystems changes in extent, elevation, and spatial distribution under climate change scenarios and evaluated the implications for potential tree species habitat. Tree species with their northern range limit in British Columbia gain potential habitat at a pace of at least 100 km per decade, common hardwoods appear to be generally unaffected by climate change, and some of the most important conifer species in British Columbia are expected to lose a large portion of their suitable habitat. The extent of spatial redistribution of realized climate space for ecosystems is considerable, with currently important sub-boreal and montane climate regions rapidly disappearing. Local predictions of changes to tree species frequencies were generated as a basis for systematic surveys of biological response to climate change.
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© 2006 Ecological Society of America. This version of this article is open access and can be downloaded and shared. The original author(s) and source must be cited.
Citation for previous publication
Hamann, A., and T. L. Wang. (2006). Potential effects of climate change on tree species and ecosystem distribution in British Columbia. Ecology, 87(11), 2773-2786. DOI: 10.1890/0012-9658(2006)87[2773:PEOCCO]2.0.CO;2.
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