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 > 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 (104 items)
Terrestrial ecosystems (88 items)
Wetland ecosystems (25 items)
Related topics:


Results 1 - 10 of 220 listed by similarity [list alphabetically]
Ecosystems of South Florida [New Window]
An overview with brief descriptions and photographs of some of South Florida's unique ecosystems.
Biological resource status and trends: Aquatic ecosystems [New Window]
Information concerning status and trends of biological resources, focusing on aquatic ecosystems
Biological resource status and trends: Bay, delta, and estuarine ecosystems [New Window]
Information concerning status and trends of biological resources, focusing on bay, delta, and estuarine ecosystems
Biological resource status and trends: Boreal forest ecosystems [New Window]
Information concerning status and trends of biological resources, focusing on boreal forest ecosystems
Biological resource status and trends: Desert ecosystems [New Window]
Information concerning status and trends of biological resources, focusing on desert ecosystems
Biological resource status and trends: Ecosystems [New Window]
Information concerning status and trends of biological resources, focusing on Ecosystems
Biological resource status and trends: Forest ecosystems [New Window]
Information concerning status and trends of biological resources, focusing on Forest ecosystems
Biological resource status and trends: Grassland ecosystems [New Window]
Information concerning status and trends of biological resources, focusing on Grassland ecosystems
Biological resource status and trends: Inland water ecosystems [New Window]
Information concerning status and trends of biological resources, focusing on inland water ecosystems
Biological resource status and trends: Lake ecosystems [New Window]
Information concerning status and trends of biological resources, focusing on lake ecosystems
Result pages: 1 2 3 4 5 6 ... Next


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&type=theme
Page Contact Information: Ask USGS