USGS - science for a changing world

Science Topics

Maps, Imagery, and Publications Hazards Newsroom Education Jobs Partnerships Library About USGS Podcasts/RSS
You are here: Topics > Biological and physical processes
Help
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 1 - 10 of 85 listed by similarity [list alphabetically]
Patuxent's effects of ecological processes and human impacts on biological resources--invasive species [New Window]
List and brief abstracts on research projects on invasive species, the ecology of introduced species, and developing management strategies at Patuxent Wildlife Research Center.
Columbia Environmental Research Center [New Window]
Website for the Columbia Environmental Research Center with links to staff, publications, databases, field stations, and projects including those on the Rio Grande, burrowing owls, sea turtles, and geospatial technology.
Columbia Environmental Research Center (CERC) Ecology Branch [New Window]
Overview of research of the Ecology Branch on the ecological consequences of habitat degradation due to altered environment, nonindigenous species, and atmospheric alterations. Includes links to staff and research projects.
Studies in Long Island Sound: geology, contaminants, and environmental issues [New Window]
Description of Long Island Sound projects and links to research topics, data, publications, photos, and technology on sediment transport, sea floor mapping, contaminant sampling, sediment texture, and environmental issues.
Watershed processes and modeling [New Window]
Links to published materials produced by the Watershed Processes and Modeling Project on watershed model TOPMODEL, compilation of STATSGO soils data, climate change, landscape heterogeneity in ecoregions, and other links.
Western Ecological Research Center (WERC) [New Window]
Links to research at the field stations of the Western Ecological Research Center with direct links to web pages for wildlife videos, satellite telemetry, fire ecology, invasive species, herpetology field guide, and coastal ecosystems.
PDF A science strategy to support management decisions related to hypoxia in the northern Gulf Of Mexico and excess nutrients in the Mississippi River Basin [New Window]
The report describes a strategy for monitoring, modeling, and research activities to support management decisions to improve water-quality conditions in the Mississippi River Basin, reduce hypoxia in the northern Gulf of Mexico, and improve conditions for
Acute toxicity database [New Window]
The following database summarizes the results from aquatic acute toxicity tests conducted by the USGS CERC located in Columbia, Missouri.
PDF Algal toxins [New Window]
Chapter of Field Manual of Wildlife Diseases on algal toxins, red tide toxins, phycotoxins, dinoflagellates, cyanobacterium, and bird mortality due to algal toxicosis.
Atchafalaya & Mississippi River Deltas study: a tale of two deltas [New Window]
Project of the Gulf of Mexico Integrated Science program that evaluates the transport and sedimentation of contaminates through the Mississippi River and Atchafalaya River delta to the near-shore Gulf of Mexico. Includes aerial photographs.
Result pages: 1 2 3 4 5 6 ... NextAll


Alphabetical Index of Topics a b c d e f g h i j k l m n o p q r s t u v w x y z

Accessibility FOIA Privacy Policies and Notices

Take Pride in America logo USA.gov logo U.S. Department of the Interior | U.S. Geological Survey
URL: http://www.usgs.gov/science//science/science.php?term=310
Page Contact Information: Ask USGS