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Ecological processes
Dynamic biogeochemical interactions that occur among and between biotic and abiotic components of the biosphere.
Subtopics:
Algal blooms (3 items)
Bioaccumulation (4 items)
Biogeochemical cycling (9 items)
Contaminant transport (24 items)
Ecological competition (2 items)
Ecosystem functions (10 items)
Eutrophication (6 items)
Extinction and extirpation (2 items)
Habitat alteration (11 items)
Migration (organisms) (3 items)
Pollination (2 items)
Succession (biological) (2 items)
Related topics:
Results 71 - 80 of 85 listed by similarity [list alphabetically]
The carbon cycle in lakes of the Upper Mississippi Basin [New Window]
Summary of part of the USGS interdivisional Mississippi Basin Carbon project that will study the changes in climate and the environment through carbon cycle changes recorded in lake sediments in the Upper Mississippi River Basin.
The fragile fringe: a guide for teaching about coastal wetlands [New Window]
Teacher's guide on coastal wetlands to aid in developing lesson plans for different levels of grade school and high school students. Includes general information, activities, references, and glossary.
Tides and inflows in the mangroves of the Everglades (TIME) [New Window]
Links for the Tides and Inflows in the Mangroves of the Everglades (TIME) project on the effects of freshwater and tidal flows on the Everglades mangroves. With links to software & manuals, time data, photos, animations, and bibliography.
PDF Toxicity and bioavailability of metals in the Missouri River adjacent to a lead refinery [New Window]
Report (PDF format) on an evaluation of the potential environmental impacts of contaminated ground water from a metals refinery adjacent to the Missouri River in Omaha, Nebraska testing water and sediments for contaminants and toxicity.
Trichloroethylene (TCE) in fractured bedrock, Naval Air Warfare Center, Trenton, N.J. [New Window]
Research on contamination by trichloroethylene (TCE) in fractured rock at the Naval Air Warfare Center in Trenton, N.J. with links to site description, bibliography, online reports, and findings.
USGS Global Change Science [New Window]
Broad overview of USGS research and monitoring designed to understand current changes in the context of prehistoric and recent earth processes, distinguishing between natural and human-influenced changes, and recognizing ecological and physical responses
USGS studies in the New York Bight [New Window]
Describes and provides links to USGS research in the location of the estuary and coast of Long Island, New York, to map the sea floor and to study sediment transport, contaminants, and sand resources and coastal vulnerability.
Upper Wallkill River study [New Window]
Program to measure streamflow stage and discharge at four sites in the Upper Wallkill River Valley's Black Dirt Region and determine Total Suspended Solids (TSS) concentration data and estimate loads of TSS and sources of contaminants.
Waste disposal and contaminant migration in the arid Southwest: Amargosa Desert Research Site, Nevada [New Window]
Links to studies at the Amargosa Desert Research Site by the USGS Toxic Substances Hydrology Program studying the subsurface migration and fate of contaminants in arid environments. Links to news, remediation, photos, bibliography and techniques.
Wastewater Indicators Shown to Degrade in Streams [New Window]
Research findings and examples of application to real problems--the stability of contaminants that indicate human wastewater needs to be considered.
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