We removed non-native fish from a section of the river and the endangered native species humpback chub increased in abundance. But it is not yet clear that decreased competition explains the rebound in population.
Using genetic analysis of organic material found in aquatic environments it is possible to detect the presence of organisms without necessarily observing or capturing individuals. Explains terms, methods, and prospective utility of this approach.
Buffelgrass (Pennisetum ciliare) poses a problem in the deserts of the United States, growing in dense stands and introducing a wildfire risk in an ecosystem not adapted to fire. This report explains what we are doing to help mitigate its effects.
Coverage of the Coastal Prairie Ecology Research (CPER) Team, National Wetlands Research Center, providing scientific information to aid the conservation, management, and restoration of ecosystems in the greater coastal prairie region.
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.
Research and monitoring to develop fundamental understanding of ecosystem function and distributions, physical and biological components and trophic dynamics for freshwater, terrestrial, and marine ecosystems and the human and fish and wildlife communitie
Imported from China in the 1970s, these fish thrive in the Mississippi and Missouri river systems and have become undesirable pests, competing with native fish species.
Study of wildland fire history and fire ecology such as plants in the Sierra Nevada forests, California shrublands, the Mojave, and Sonoran deserts to develop management techniques that will reduce hazards.
The greatest threat to the future of the Koloa maoli as a unique species is cross-breeding with the introduced Mallard duck. This type of threat is termed genetic extinction.
Snakeheads, aggressive airbreathing freshwater fishes that are not native to North America, are considered injurious to certain native North American fish and other aquatic wildlife.
These organisms have negative effects on local ecosystems, but we don't yet know how extensively they have spread. Here is a key to help people identify them.
This program provides management-oriented research and delivers information needed to prevent, detect, control, and eradicate invasive species, and to restore impaired ecosystems.
Links to research projects that will improve the ability to detect, monitor, and predict the effects of invasive species, including exotic animals, on native ecosystems of the Pacific Southwest (California, Nevada, Utah, and Arizona).
A national information resource for locating biogeographic accounts of non-indigenous aquatic species in the U.S. Provided are scientific reports, online/real-time queries, spatial data sets, regional contact lists, and general information.
Brief descriptions of programs of research on aquatic nonindigenous plants and animals at the Florida Integrated Science Center with links to descriptions, videos, posters, and reports on various exotic plant and animals species.
Descriptions of amphibians and examples of the deleterious effects of nonindigenous species, with links to distribution maps, species lists and related information on amphibians.
Descriptions of annelids and examples of the deleterious effects of nonindigenous species, with links to distribution maps, species lists and related information on annelids.
Descriptions of bryozoans and examples of the deleterious effects of nonindigenous species, with links to distribution maps, species lists and related information on bryozoans.
Descriptions of coelenterates and examples of the deleterious effects of nonindigenous species, with links to distribution maps, species lists and related information on coelenterates.
Descriptions of crustaceans and examples of the deleterious effects of nonindigenous species, with links to distribution maps, species lists and related information on crustaceans.
Descriptions of fishes and examples of the deleterious effects of nonindigenous species, with links to distribution maps, species lists and related information on fishes.
Descriptions of mammals and examples of the deleterious effects of nonindigenous species, with links to distribution maps, species lists and related information on mammals.
Descriptions of mollusks and examples of the deleterious effects of nonindigenous species, with links to distribution maps, species lists and related information on mollusks.
Descriptions of reptiles and examples of the deleterious effects of nonindigenous species, with links to distribution maps, species lists and related information on reptiles.
Descriptions of sponges and examples of the deleterious effects of nonindigenous species, with links to distribution maps, species lists and related information on sponges.
Descriptions of tunicates and examples of the deleterious effects of nonindigenous species, with links to distribution maps, species lists and related information on tunicates.
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.
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.
List and brief abstracts on research projects on invasive species, the ecology of introduced species, and developing management strategies at Patuxent Wildlife Research Center.
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.
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.
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 center in Florida focusing on amphibians and reptiles, coastal ecology, contaminants and ecotoxicology, imperiled fish, manatees, and invasive species
Children's website on southern Florida aquatic biology with short movie clips of amphibians, games & puzzles, wildlife pictures, teacher resources, and more.
Report prepared for the U.S. Fish and Wildlife Service with descriptions of exotic aquatic species introduced in the southeast United States with information on populations, geographic distribution, and origins.
Concerted effort to monitor, analyze, and record sightings of non-native (introduced) aquatic species throughout the United States. Explains characteristics of the database that is compiled by this program.