High-elevation treelines are a global phenomenon, but the large-scale ecological and physiological mechanisms that define their existence still elude ecologists. The upper altitudinal limit of trees ...
In North America’s hottest, driest desert, climate change is causing the decline of plants once thought nearly immortal and replacing them with shorter shrubs that can take advantage of sporadic ...
The vegetation observation sheets documenting Helmut Buechner's work, July 15 - 17, 1951. Sheets list type of environment (e.g. open timber), location, date, exposure, slope, elevation, base line ...
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