Organisms accidentally or intentionally introduced into areas where they did not previously originate or live.
Nonindigenous sponge distribution information [ More info] Descriptions of sponges and examples of the deleterious effects of nonindigenous species, with links to distribution maps, species lists and related information on sponges.
Nonindigenous tunicate distribution information [ More info] Descriptions of tunicates and examples of the deleterious effects of nonindigenous species, with links to distribution maps, species lists and related information on tunicates.
Nonindigenous vascular plant distribution information [ More info] Descriptions of vascular plants and examples of the deleterious effects of nonindigenous species, with links to distribution maps, species lists and related information on vascular plants.
Northern Appalachian Field Branch, Leetown Science Center [ More info] Description of scientific focus and research at the Northern Appalachian Field Lab on mining land use impacts and mediation, aquatic ecology, effects of dam removal, and invasive plant and animal species.
Patuxent's effects of ecological processes and human impacts on biological resources--invasive species [ More info] List and brief abstracts on research projects on invasive species, the ecology of introduced species, and developing management strategies at Patuxent Wildlife Research Center.
Recent changes in the food web of Lake Erie - the role of phosphorus and zebra mussels [ More info] Brief overview of the proliferation of zebra mussels and the role of phosphorus in Lake Erie with links to publications related to Lake Erie water quality.
River corridor habitat dynamics, Lower Missouri River [ More info] Detailed description of The Lower Missouri River Corridor Habitat Dynamics Project studying river habitat in a heavily engineered river.
Salvinia molesta, Salvinia weevil, Salvinia minima [ More info] Life history and identification of Salvinia species, a floating, rootless tree fern and a noxious aquatic weed. Site includes posters, instructions on submitting sightings, how to subscribe to a listserv on the weed, and a bibliography.
Satellite tracking and geospatial analysis of feral swine and their habitat use in Louisiana and Mississippi [ More info] Invasive pigs first introduced to the continental United States in the 1500s by European explorers. Using tracking collars, we have begun to discover where these troublesome animals go.
Science from genes to landscapes [ More info] Explains USGS scientific research and monitoring activities focused on ecosystems, with examples from emerging diseases, invasive species, rangeland fire, and the complex interactions among organisms and human activities.
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