The scientists from the Forest and Rangeland Ecosystem Science Center capitalize on their diverse
expertise to answer critically important scientific questions shaped by the equally diverse environments
of the western United States. FRESC scientists collaborate with each other and with partners to provide
rigorous, objective, and timely information and guidance for the management and
conservation of biological systems in the West and worldwide.
In the Spotlight
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Assessing Mercury in Fish from National Parks in the Eastern United States
A 2014 report by USGS and National Park Service scientists documented widespread and variable mercury contamination in fishes from 21 western U.S. national parks. In a...
Atmosphere and Organic Matter Interactions Control Molybdenum in Forest Soils
The micronutrient molybdenum is required by all living organisms and is especially important for enzymes that facilitate nitrogen cycling through plants and soils...
Using Statistical Techniques to Detect Change in Stream Macroinvertebrates
The National Park Service is directed to annually report trends on the condition of park resources to Congress, requiring managers to determine whether observed changes...
Understanding Species Persistence at Distributional Edges
Species living in marginal habitats at the edges of larger populations can be genetically different and are often more vulnerable to climate changes, habitat...
Temperature-related Effects of Dam Operations on Western Pond Turtles
Western pond turtles are ectotherms – their body temperature is controlled by their environment. To study how altered stream temperatures resulting from dams influence...
Using Ultrasonic Acoustic Deterrents to Reduce Bat Fatalities
Changing wind turbine operations during periods of high risk of bat collisions has been shown to reduce bat fatalities, yet operational minimization may be...
provides expertise in contaminant accumulation and transfer in food webs, contaminant cycling, mercury toxicity, and lake and wetland ecology. Collin broadly applies his research to all animal species, especially waterbirds and fish. He also directs FRESC's Contaminant Ecology Laboratory, which maintains facilities for measuring mercury and other trace metals in environmental media, as well as endocrine disruption and biomarker responses in various fish and avian species.
Measuring the Ecological Effects of Contaminants
focuses on determining what happens to natural systems when they are exposed to contaminants at environmentally relevant concentrations. Our research is specifically designed to measure the effects of contaminants on biological functioning across a gradient of ecological scales. Perhaps the most important component of this theme is the overarching goal of integrating the effects at all levels of organization to form a more cohesive understanding of the emergent responses to contaminant exposure.