The stable water isotope data for the East River Watershed, Colorado, consists of delta2H (hydrogen) and delta18O (oxygen) values from samples collected at multiple, long-term monitoring sites including streams, groundwater wells, springs, and a precipitation collector used to establish a local mete

Premise of the Research. Seed production by flowering plants depends on abiotic and biotic factors whose interacting effects may be hidden. We previously reported that exposure to dust from unpaved roads reduced the average amount of pollen on flowers of Ipomopsis aggregata, but did not consistently

Premise of the Research. Seed production by flowering plants depends on abiotic and biotic factors whose interacting effects may be hidden. We previously reported that exposure to dust from unpaved roads reduced the average amount of pollen on flowers of Ipomopsis aggregata, but did not consistently

Climate change is likely to alter both flowering phenology and water availability for plants. Either of these changes alone can affect pollinator visitation and plant reproductive success. The relative impacts of phenology and water, and whether they interact in their impacts on plant reproductive s

Average temperatures are increasing globally and causing shifts in the timing of weather events such as spring snowmelt, which may have profound consequences on the phenology of many organisms. Working at the Rocky Mountain Biological Lab in central Colorado, we examined the relationship between spr

Rising global temperatures are predicted to alter community dynamics by shifting species ranges and altering biotic interactions. Herbivory is expected to increase with prolonged growing seasons and heightened metabolic rates; pathogen damage may increase as well. We predict that damage by herbivore

The theory clarifies the condition for the energetic equivalence rule (EER) to hold, and provides a statistical explanation for the importance of species functional variation in determining population dynamics and coexistence patterns.

Looking at the entire flower community as a resource for foraging pollinators, it is found that flowers are an unreliable resource, especially in unpredictable environments.

AbstractAimThe recently proposed maximum entropy theory of ecology predicts that all nested species–area relationships (SARs) will collapse to a single, universal curve that exhibits a decreasing log–log slope with increasing scale, suggesting that the power law form of the SAR is invalid at any sca

Our grasp of biodiversity is fine-tuned through the process of revisionary taxonomy. If species do exist in nature and can be discovered with available techniques, then we expect these revisions to converge on broadly shared interpretations of species. But for the primarily arctic bumblebees of the

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Authors: Mark P. Couch, Gregory L. Moore Organization: Denver Post Year: 2007

Ralph E. Clark III. October 12, 2007.

August 28, 2007. ?

Lisa Margonelli, Steve Raabe, Patrick Barta, Nate Jenkins, Gautam Naik, Jeffery Ball. Denver Post, Wall Street Journal. 2007.