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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 61 - 70 of 748 listed alphabetically [list by similarity]
Biological resource status and trends: Fire [More info]
Information concerning status and trends of biological resources, focusing on fire
Biological soil crusts [More info]
Explains biological soil crusts, organism-produced soil formations commonly found in semiarid and arid environments, with special reference to their biological composition, physical characteristics, and ecological significance.
PDF Biological soil crusts: webs of life in the desert [More info]
Fact sheet on the need to protect biological soil crusts in the desert. These crusts are most of the soil surface in deserts not covered by green plants and are inhabited by cyanobacterium (blue-green algae) and other organisms useful to the ecosystem.
Biomarker Benchmarks: Reproductive and Endocrine Biomarkers in Largemouth Bass and Common Carp from United States Waters [More info]
Describes a national reconnaissance study of reproductive health in two species of fish across the US. More than 2,200 common carp and 650 largemouth bass were collected at 119 rivers and streams.
Biosolids, Animal Manure, and Earthworms: Is There a Connection? [More info]
Research findings and examples of application to real problems--how household contaminants accumulate in and effect the environment
PDF Boiling water at Hot Creek - The dangerous and dynamic thermal springs in California's Long Valley Caldera [More info]
Explains how these hot surface waters form, why their temperature changes often, and provides safety guidance for visiting this area.
Borehole geophysics as applied to geohydrology [More info]
Project summary, photos of logging truck, and bibliographies on log interpretation techniques and instrumentation to record geophysical data in wells and test holes for studying ground water hydraulics and evaluate waste disposal sites.
PDF Born of fire: restoring sagebrush steppe [More info]
USGS Forest and Rangeland Ecosystem Science Center: fact sheet in Adobe PDF about the studies to restore sagebrush steppe
Boston Harbor Studies: the fate of sediments and contaminants in Massachusetts Bay [More info]
Boston Harbor/Massachusetts Bay Studies research project conducted as part of Boston Harbor cleanup to predict the fate of contaminants and sediments introduced to Massachusetts' coastal waters from sources that include Boston sewage outfall.
Boston Harbor ecosystems [More info]
This web site is an outgrowth of an agreement between the USGS and the New England Aquarium, designed to summarize and make available results of scientific research. It will also present educational material of interest to wide audiences.
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