Date of winter snowpack melt during the past 36 years at Rocky Mountain Biological Laboratory. A trend toward earlier snowmelt was noted during the study period, though the correlation was not statistically significant due to large year-to-year variability.

Publisher: EcoEd Digital Library

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A graph of the number of unfrosted flowers of the aspen sunflower (Helianthella quinquenervis) from an annual count in a 10x45m plot at the Rocky Mountain Biological Laboratory, Gothic, Colorado, by David Inouye. Note the significant fluctuation in the number of heads produced from year to year.

Publisher: EcoEd Digital Library

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A collection of slides about the effects of frost on Colorado wildflowers at the Rocky Mountain Biological Laboratory (RMBL). RMBL is a high-altitude field research station at 9,500 feet in the Colorado Rocky Mountains. RMBL has supported field work since it was founded in 1928, and is the location of the research described in this slide show.

Publisher: EcoEd Digital Library

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These Landsat images show Kenya’s Masai Mara Reserve on December 4, 1994, a year with normal rainfall, and November 27, 2009, a year when the rains failed and a severe drought overtook the land. The image to the right clearly shows that the only thriving vegetation is in small patches close to the larger rivers and streams; much of the remaining land is completely barren. The year 2009 sa...

Publisher: EcoEd Digital Library

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This pair of images illustrates the rise in sea surface temperature in the Florida Keys between June 11, 1985 and July 4, 2005. Most of the surface has warmed by one to two degrees Fahrenheit. Rising ocean temperatures due to climate change pose a tremendous threat to coral reefs and the marine life they shelter. Global water temperatures began a steady rise in the 1980s, accompanied by coral...

Publisher: EcoEd Digital Library

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