Science Explorer
Exploring: Ecosystem Health
A General Lake Model (GLM 3.0) for linking with high-frequency sensor data from the Global Lake Ecological Observatory Network (GLEON)
The General Lake Model (GLM) is a one-dimensional open-source code designed to simulate the hydrodynamics of lakes, reservoirs, and wetlands. GLM was developed to support the science needs of the Global Lake Ecological Observatory Network (GLEON), a network of researchers using sensors to understand lake functioning and address questions about how...
Dr. Todd Esque's research interests are in disturbance ecology with emphasis in areas of community ecology, herpetology, invasive species and fire, habitat restoration, and conservation biology. Dr. Esque's work focuses on understanding how organisms, habitats, and ecosystem processes respond to environmental change, how...
I study influences of climatic variability and land uses on American drylands—their ecosystems, surface materials, and geologic underpinnings—with emphasis on sediment eroded and deposited by wind, mostly as atmospheric dust. Dust represents local, regional, and global translocation of enormous amounts of matter and energy. I attempt...
My research program focuses on the interactions among immunology, toxicology, disease ecology, and ecosystem health. I analyze the physiologic and metabolic effects of stressors on organisms and how subsequent vulnerabilities translate into population and ecosystem health. Stressors can be either chemical (pesticides, petroleum hydrocarbons),...
Dr. Lisamarie Windham-Myers is a wetland ecologist and lead scientist for the USGS-NRP program “Plant:Soil:Water Interactions in Wetland Ecosystems”. Broadly-trained in ecosystem ecology, her research focuses on plant physiology and its influence on carbon, nutrient, and trace-metal biogeochemistry. Her approaches span landscape-to-...
My research interests are diverse and include 1) using chemical and statistical techniques to understand migration patterns, habitat selection, and physiological responses of fish, 2) relating changes in water levels, streamflow, and water quality on aquatic ecosystem function, 3) fate and transport of sediment in the environment, 4) determination...
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Jonathan Sleeman is currently the Center Director for the U.S. Geological Survey’s National Wildlife Health Center where he leads a team that provides national leadership to safeguard wildlife and ecosystem health through multidisciplinary research and technical assistance to federal, state, and tribal agencies as well as internationally as...
EDUCATION Ph.D., Microbiology, Memphis State University, 1991M.S., Microbiology and Biochemistry, Idaho State University, 1985B.S., Biology, Rochester Institute of Technology, 1981RESEARCHJill Jenkins’ efforts emphasize the study of potential impacts of environmental stressors at the cellular and molecular levels. Her major areas of...
Johanna Kraus is a research ecologist whose research focuses on the food web implications of organismal and contaminant transfer across ecosystem boundaries. She started with the USGS in 2011 as a Mendenhall Research Fellow studying the effects of stream metal pollution on aquatic insect emergence, contaminant flux to riparian spiders...
A team of biologists, Barry Baldigo, Luis Rodriguez, Mike DeMoulpied, and Abbey Holsopple (from left to right), prepare to conduct a survey for invasive round goby on the New York State Canal system near Rome, NY in 2018. Photo by Scott George (Public Domain)
The North Coast Resource Partnership (NCRP) is an innovative, stakeholder-driven collaboration among local government, Tribes, watershed groups, and interested partners in the North Coast region of California. The North Coast comprises seven counties (Figure 1), Tribal lands, major watersheds, and a planning area of 19,390 square miles...
EDUCATIONPh.D., Botany, Iowa State University, 1989Advisors: van der Valk/DavisM.S., University of Minnesota Duluth, 1983B.S., University of Wisconsin Madison, 1978 RESEARCHWetland function may be altered by climate change in the future because of shifts in water fluctuation, salinity intrusion...
To create a framework for adapting to climate change, decision makers need to understand specific threats to our water supply, land use suitability, hazard risks, ecosystems and quality of life. A vulnerability assessment that defines the projected degree to which an ecosystem, landscape, or watershed is vulnerable to change will help to create...
Drought in the Russian River region is keyed to the absence of large winter storms-the RR is winter rain-driven, with a few atmospheric river (AR) storms each year bringing 40-50% of the annual rainfall. Two multi-purpose reservoirs provide storage for warm-season uses, and there is little to no snow pack to extend the runoff season. The same ARs...
Pierre Glynn heads the Water Cycle Branch in the Water Mission Area at the U.S. Geological Survey (USGS). The scientists in his Branch conduct research to advance the qualitative and quantitative understanding of the water cycle, its dynamics, and its interactions with societal needs, including water-cycle dependencies and interactions with...
Trained as an Aquatic Ecologist, I am most interested in trophic interactions occurring between fish and their prey. I am particularly interested in how these interactions are influence by anthropogenic stressors, such as nonindigenous species and climate change. I am also interested in life history strategies and how these can evolve...
Dr. Ackerman is a Principal Investigator with USGS and an Associate in the Department of Wildlife, Fish, and Conservation Biology at the University of California-Davis. His research expertise is in avian ecology and ecotoxicology, and his research program focuses on waterbird ecology, wetlands, avian reproduction, mercury bioaccumulation, and...
Welcome to the Staff Profile for Chauncey Anderson, Hydrologist and Water Quality Specialist at USGS Oregon Water Science Center in Portland, Oregon.
Simulation of potential groundwater recharge for the glacial aquifer system east of the Rocky Mountains, 1980–2011, using the Soil-Water-Balance Model
An understanding of the spatial and temporal extent of groundwater recharge is critical for many types of hydrologic assessments involving water quality, contaminant transport, ecosystem health, and sustainable use of groundwater. Annual potential groundwater recharge was simulated at a 1-kilometer resolution with the Soil-Water-Balance (SWB)...
Attribution: Minnesota Water Science Center, Water Resources