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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 262 - 264 of 264 listed alphabetically [list by similarity]
What's new at the Patuxent Wildlife Research Center (Maryland) [More info]
Links to news articles on scientific activities at Patuxent Wildlife Research Center, located in Maryland, north of Washington DC.
Whitebark pine communities [More info]
Report on status and trends of whitebark pine communities with references to related publications.
Wildlife and Terrestrial Resources Program [More info]
Homepage of the USGS Wildlife and Terrestrial Resources Program with links to projects, centers, and cooperative research units.
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