Elevation gradient - PowerPoint PPT Presentation

GRADIENT: Himalayan elevation gradient NICHE: temperature niches Richness Endemics Life forms

GRADIENT: Himalayan elevation gradient NICHE: temperature niches Richness Endemics Life forms. But first: do communities exist?. A short answer after a long debate: No. Compositional variation in nature tends to be gradual. How can we analyse species composition?.

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872 views • 60 slides

Lodgepole Pine / Ponderosa Pine Ecotone

Lodgepole Pine / Ponderosa Pine Ecotone. VS. Lodgepole Pine / Limber Pine Ecotone. By Tyler Bieneman. Winter Ecology – Spring 2005 Mountain Research Station – University of Colorado, Boulder. Questions. What are the key factors that determine ecotones and dominance?

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707 views • 14 slides

Phenological Changes in the Southwest

Phenological Changes in the Southwest. USA-NPN NCO December 2016. Broad-tailed hummingbird, Photo: Tom Grey. 2012. McKinney, et al. Broad-tailed hummingbird, Photo: Tom Grey. 2012. McKinney, et al. Sonoran Desert. Winter rains shifting later. 1980s.

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122 views • 10 slides

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