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: Categories > Topics > Population and community ecology
Help
Ecosystems
The interacting populations of plants, animals, and microorganisms occupying a certain area, and their relationship to the environment.
Subtopics:
Aquatic ecosystems (132 items)
Terrestrial ecosystems (100 items)
Wetland ecosystems (34 items)
Related topics:


Results 11 - 20 of 272 listed alphabetically [list by similarity]
Atchafalaya & Mississippi River Deltas study: a tale of two deltas [More info]
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.
PDF Avian conservation in the Prairie Pothole Region, Northern Great Plains-Understanding the links between climate, ecosystem processes, wetland management, and bird communities [More info]
Small wetlands in this large area have hosted migratory birds for a long time, but with changes in agricultural practice and regional climate those habitats may not remain hospitable to the wild populations.
PDF Beyond the Golden Gate--oceanography, geology, biology, and environmental issues in the Gulf of the Farallones [More info]
A geologic and oceanographic study of the waters and Continental Shelf of Gulf of the Farallones adjacent to the San Francisco Bay region. The results of the study provide a scientific basis to evaluate and monitor human impact on the marine environment.
BioData: a national aquatic bioassessment database [More info]
A web-enabled database that provides for the capture, curation, integration, and delivery of bioassessment data collected by USGS, principally macroinvertebrate, algae, fish, and supporting habitat data from rivers and streams.
Biological and ecotoxicological characteristics of terrestrial vertebrates residing in estuaries [More info]
Biomonitoring of Environmental Status and Trends (BEST) program is designed to assess and monitor the effects of environmental contaminants on biological resources with links to detailed information on specific species.
Biological resource status and trends: Aquatic ecosystems [More info]
Information concerning status and trends of biological resources, focusing on aquatic ecosystems
Biological resource status and trends: Bay, delta, and estuarine ecosystems [More info]
Information concerning status and trends of biological resources, focusing on bay, delta, and estuarine ecosystems
Biological resource status and trends: Boreal forest ecosystems [More info]
Information concerning status and trends of biological resources, focusing on boreal forest ecosystems
Biological resource status and trends: Caves and subterranean habitats [More info]
Information concerning status and trends of biological resources, focusing on caves and subterranean habitats
Biological resource status and trends: Desert ecosystems [More info]
Information concerning status and trends of biological resources, focusing on desert ecosystems
Result pages:Previous 1 2 3 4 5 6 7 ... 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=319&b=10&n=10&order=alpha
Page Contact Information: Ask USGS