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Biological and physical processes
All continuing activities, functions, and phenomena associated with organisms and non-living matter.
Subtopics:
Atmospheric and climatic processes (166 items)
Coastal processes (32 items)
Ecological processes (100 items)
Estuarine processes (2 items)
Evolution (1 items)
Fires (24 items)
Geochemical processes (18 items)
Geologic processes (315 items)
Hydrologic processes (250 items)
Impact cratering (1 items)
Ocean processes (43 items)
Physiological processes (8 items)


Results 81 - 90 of 743 listed alphabetically [list by similarity]
Central California /San Francisco Bay Earthquake Hazards Project [More info]
Information on earthquakes in central California and the San Francisco region with links to four types of field studies, deep seismic investigations, geotechnical investigations, shallow seismic imaging, and airborne geophysical surveys.
Central Region [More info]
Entry to USGS Central Region programs with links to Biological Resources, Geology, National Mapping, Water Resources, Office of Central Region Services, emergency information, and records of a Rockies field trip, and clickable map to state programs.
Changing Arctic Ecosystems-Measuring and forecasting the response of Alaska's terrestrial ecosystem to a warming climate [More info]
Combining genetic data with current and predicted climate scenarios, we are modeling the predicted future distributions of wildlife populations in the Arctic and identifying key environmental variables that determine important animal habitat.
PDF Characterization of Fish Creek, Teton County, Wyoming, 2004-08 [More info]
Preliminary results of hydrologic and biological sampling confirm anecdotal reports that this stream shows unusually high algal growth due to elevated nutrients, probably from groundwater.
Classification of natural ponds and lakes in the glaciated prairie region [More info]
Presents a wetland classification system that reflects seasonal, regional, and local variations in the environment.
Climate Change and Wildlife Health: Direct and Indirect Effects [More info]
Addresses geographic range and distribution of wildlife diseases, plant and animal phenology, wildlife host-pathogen interactions, and disease patterns in wildlife.
PDF Climate Variability and Change [More info]
This fact sheet focuses on climate variability and change and how USGS research can strengthen the Nation with information needed to meet the challenges of the 21st century.
Climate and land use change [More info]
Research that helps the Nation understand these global changes and their impacts on society, resource availability, and economic development.
Climate change in mountain ecosystems [More info]
Overview of interdisciplinary research studies in Glacier National Park to understand how this mountain wilderness responds to present climatic variability and other external stressors, such as air pollution, and links to detailed reports.
Climate of North Dakota: blizzards [More info]
Reviews the causes and frequency of blizzards in North Dakota.
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