Luke C Loken
Luke Loken is a Hydrologist with the Upper Midwest Water Science Center.
I am a hydrologist with the U.S. Geological Survey with a broad ecological background. My research focuses on hydrology and biogeochemistry in aquatic ecosystems at a range of ecological-scales. Some topics include: 1) The causes and consequences of spatial heterogeneity of water chemistry in lakes, rivers, and estuaries. 2) Drivers and patterns of ecosystem processes (metabolism, nutrient cycling, population dynamics). 3) The persistence of human-derived material (fertilizers, pesticides, chemicals) in river networks across landscapes.
Education and Certifications
Ph.D., Freshwater and Marine Sciences, University of Wisconsin-Madison, 2018
M.S., Freshwater and Marine Sciences, University of Wisconsin-Madison, 2014
B.S., Biology, University of Michigan, 2006
Affiliations and Memberships*
Center for Limnology (CFL) Affiliate
The Long-Term Ecological Research Network (LTER)
American Geophysical Union (AGU)
Association for the Sciences of Limnology and Oceanography (ASLO)
Society of Freshwater Sciences (SFS)
Science and Products
Below are data associated with this staff profile.
Below are publications associated with this staff profile.
Limited nitrate retention capacity in the Upper Mississippi River
Spatial early warning signals in a lake manipulation
Spatial heterogeneity of within-stream methane concentrations
Spatial variability of CO2 concentrations and biogeochemistry in the Lower Columbia River
The ecology of methane in streams and rivers: Patterns, controls, and global significance
Regional-scale controls on dissolved nitrous oxide in the Upper Mississippi River
Non-USGS Publications**
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Below are software associated with this staff profile.
Science and Products
Below are data associated with this staff profile.
Below are publications associated with this staff profile.
Limited nitrate retention capacity in the Upper Mississippi River
Spatial early warning signals in a lake manipulation
Spatial heterogeneity of within-stream methane concentrations
Spatial variability of CO2 concentrations and biogeochemistry in the Lower Columbia River
The ecology of methane in streams and rivers: Patterns, controls, and global significance
Regional-scale controls on dissolved nitrous oxide in the Upper Mississippi River
Non-USGS Publications**
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Below are software associated with this staff profile.
*Disclaimer: Listing outside positions with professional scientific organizations on this Staff Profile are for informational purposes only and do not constitute an endorsement of those professional scientific organizations or their activities by the USGS, Department of the Interior, or U.S. Government