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Columbia Environmental Research Center

Welcome to the Columbia Environmental Research Center. Our research focuses on environmental contaminants and the effects of habitat alterations on aquatic and terrestrial ecosystems. 

News

A Tale of Two Islands and the Future of an Ocean Sentinel Seabird

A Tale of Two Islands and the Future of an Ocean Sentinel Seabird

Tree rings provide an important multi-century context for the current wildfire crisis

Tree rings provide an important multi-century context for the current wildfire crisis

WEBINAR: USGS Invasive Species Science - Innovation for a Healthy Nation

WEBINAR: USGS Invasive Species Science - Innovation for a Healthy Nation

Publications

Bird migration and energetics simulations incorporating oil spill effects Bird migration and energetics simulations incorporating oil spill effects

Oil spills are well-known for causing acute mortality of birds, but sublethal and delayed impacts are less understood. Focusing on the mallard (Anas platyrhynchos), we used simulation modeling to explore how sublethal oiling may affect avian survival and breeding ground body condition. We used empirically informed migration and energetics simulations to model hypothetical spills...
Authors
Benjamin M West, Mark L. Wildhaber, Wayne E. Thogmartin, Michael J. Hooper

Melanoma and other melanistic lesions in brown bullhead Ameiurus nebulosus from waterbodies in the northeastern United States and Canada: Identification of risk factors Melanoma and other melanistic lesions in brown bullhead Ameiurus nebulosus from waterbodies in the northeastern United States and Canada: Identification of risk factors

Melanistic lesions, including non-raised black areas due to proliferations of melanocytes and melanomacrophages in the dermis and epidermis, as well as raised black areas consistent with melanoma, are described in brown bullhead (BBH) Ameiurus nebulosus from three water bodies in the northeastern United States and Quebec, Canada. First observed in the Vermont portion of Lake Memphremagog...
Authors
Vicki S. Blazer, P. Emerson, M. Bodnar, Thomas Jones, D. R. Russel, M. Pehrson, Cheyenne R. Smith, Danielle M. Cleveland, Mark J. Henderson, Patricia Mazik

Restoration in motion: Expanded migration and distribution of silver redhorse Moxostoma anisurum and shorthead redhorse M. macrolepidotum Restoration in motion: Expanded migration and distribution of silver redhorse Moxostoma anisurum and shorthead redhorse M. macrolepidotum

Habitat fragmentation poses a significant threat to migratory species. Dams are a common form of fragmentation, and recent restoration efforts around the Great Lakes have prioritized dam removal. We used acoustic telemetry to describe migratory movements of two redhorse species in the Sandusky and Cuyahoga rivers, Ohio, USA in relationship to habitat reconnection. Shorthead redhorse...
Authors
Sophia Marie Bonjour, James J. Roberts, Marc A. Mills, David Walters, Andrew T. Mueller, Nicholas David Fischer, Ryan J. Trimbath, Curtis P. Wagner, Peter I. Jenkins, Matthew Ross Acre

Science

From Stream to Spider: How PFAS Move Through Aquatic and Terrestrial Food Webs

Per- and polyfluoroalkyl substances (PFAS) are persistent synthetic chemicals that accumulate in the environment and living organisms. A USGS study examined how different PFAS compounds move through a stream ecosystem and are transferred from aquatic to terrestrial food webs. The findings documented that not all PFAS behave the same once they enter the environment, leading to differences in...
From Stream to Spider: How PFAS Move Through Aquatic and Terrestrial Food Webs

From Stream to Spider: How PFAS Move Through Aquatic and Terrestrial Food Webs

Per- and polyfluoroalkyl substances (PFAS) are persistent synthetic chemicals that accumulate in the environment and living organisms. A USGS study examined how different PFAS compounds move through a stream ecosystem and are transferred from aquatic to terrestrial food webs. The findings documented that not all PFAS behave the same once they enter the environment, leading to differences in...
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eDNA for Water-Quality Monitoring and Public Health Protection

eDNA for Water-Quality Monitoring and Public Health Protection

By analyzing genetic traces left behind in water, eDNA provides early warning signs of problems—helping managers respond faster, protect public health, and keep freshwater ecosystems resilient.
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