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Dearborn, Katherine D.

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Questions: How does treeline community composition vary between elevations, aspects and slope angles in the alpine subarctic and what are the specific abiotic factors governing this variability? How do species richness and rates of community turnover vary from low to high elevation across the forest-tundra ecotone? What do the results indicate about future vegetation change? Location: Kluane Region, southwest Yukon, Canada. Methods: We surveyed plant communities and measured key abiotic variables across forest-tundra ecotones in six alpine valleys, each with a north and a south-facing slope, in two mountain ranges of southwest Yukon. We used non-metric multidimensional scaling to identify patterns in plant community...
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