Abstract
Bioclimate envelope models can be used to predict the potential range of a species over an area. Relating bioclimate envelope models to established provenance trials can give us additional information on the relative effectiveness of these models. Using growth information compiled for Douglas fir (Pseudotsuga menziesii) and Lodgepole pine (Pinus contorta), we hope to compare the relative growth of each species across Europe to assess the effectiveness of their respective bioclimate envelope models. Using provenance trial measurements, a model for height growth relative to age of each species was developed for Europe. Actual height growth relative to predicted height was then analyzed against existing bioclimate model probabilities of presence. When comparing relative tree heights with bioclimate envelope model information, relative growth waspositively correlated with bioclimate model probabilities of presence for Douglas fir but negatively correlated for Lodgepole Pine.
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