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woodland-to-forest transition during prolonged drought in minnesota after ca. ad 1300.interactions among multiple causes of ecological perturbation, such as climate change and disturbance, can produce "ecological surprises." here, we examine whether climate-fire-vegetation interactions can produce ecological changes that differ in direction from those expected from the effects of climate change alone. to do so, we focus on the "big woods" of central minnesota, usa, which was shaped both by climate and fire. the deciduous big woods forest replaced regional woodlands and savannas a ...200919886488
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