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Scientists recently created a model to predict how shorter winters will affect future mammal population sizes in US national forests. Unfortunately, when the model is applied to large forests, its predictions for large-mammal populations are too high, and when applied to small forests, its predictions for small-mammal populations are too high. Tuskegee National Forest in Alabama is a small forest, covering less than 100,000 acres. If used to evaluate the effect of shorter winters on this forest in ten years, the model would likely therefore