Status and Trends

Reports & Publications

Effect of Species Rarity on the Accuracy of Species Distribution Models Status and Trends of the Nation's Biological Resources, vols. 1-2

Subtopics

None

Related Subjects

Agricultural Practice (Impacts)

Threatened and Endangered Species

Amphibians+Insects
(Frogs, Toads, and Salamanders) - The continental United States is home to at least 230 amphibian species: 90 frog and toad species, and 140 species of salamanders. Amphibians appear in cities and in natural areas, as well as rainforests and in wetlands. Healthy amphibian populations that once thrived are now on the decline worldwide. In the U.S. alone, declines in amphibian populations are particularly serious in California, the Rocky Mountains, the Southwest, and Puerto Rico. This decline has been a result of amphibian malformations - extra limbs, malformed or missing limbs, and facial malformations. These malformations have been documented in 44 states, and involve nearly 60 species. In some local populations, up to 60% of the amphibians exhibit malformations.

Did You Know...?

USGS Frog Quiz
You can identify different amphibian species by their unique vocalizations or "frog calls." Not all amphibian species make vocalizations, but many frogs and toads do.

6 Total Items

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National Park Service Inventory and Monitoring Program

Publisher: Other Federal Agency (National Park Service (NPS)) | Format: URL

science.nature.nps.gov — This website represents National Park Service Inventory and Monitoring Program's goal to collect, organize, and make available natural resource data and to contribute to the Service's institutional knowledge. Its goals are to inventory the natural resources under National Park Service stewardship to determine their nature and status; monitor park More...

It's in the Air: The Ecological Effects of Nitrogen Deposition in Rocky Mountain National Park

Publisher: USGS | Science Center: Fort Collins Science Center (FORT, Ft. Collins) | Format: URL

www.fort.usgs.gov — Encroaching development, overuse, and air- and waterborne contaminants from outside park boundaries are causing noticeable changes to water quality and ecosystem health and functioning. The Front Range metropolitan area from Fort Collins south to Colorado Springs includes 75 percent of Colorado's population and its most productive agricultural More...

National Resources Monitoring Partnership (NRMP)

Publisher: NBII | Format: URL

www.nbii.gov — Natural resource managers face complex decisions that require a clear understanding of the status of wildlife populations and their habitats. Monitoring is key to making effective management decisions and evaluating the outcomes of those decisions. The goal of NRMP is to improve the accessibility of monitoring efforts to resource managers to aid More...

National Resources Monitoring Partnership (NRMP) Newsletter

Publisher: USGS | Science Center: Fort Collins Science Center (FORT, Ft. Collins) | Format: URL

www.fort.usgs.gov — Natural Resource Monitoring Partnership (NRMP) is a collaborative effort by the natural resource management community to improve monitoring efforts in order to support effective evaluation and decision-making by sharing information on monitoring projects and protocols. The Natural Resource Monitoring Partnership was built for easy access to More...

Fire and Research Management Exchange System (FRAMES)

Publisher: NBII | Format: URL

frames.nbii.gov — The Fire Research And Management Exchange System or FRAMES is a systematic method of exchanging information and transferring technology between wildland fire researchers, managers, and other stakeholders. In partnership with the US Geological Survey's National Biological Information Infrastructure (NBII) Program, FRAMES is implementing web-based More...

Effects of Thinning and Prescribed Fire on Aquatic and Terrestrial Herpetofauna: Little River Adaptive Management Area

Publisher: USGS | Science Center: Forest and Rangeland Ecosystem Science Center (FRESC, Corvallis) | Format: URL

fresc.usgs.gov — Prescribed fire and forest thinning is a management strategy that promotes the development of forest structure and composition similar to that present under a native fire regime. This research summary describes how FRESC researchers will address the effects of prescribed fire and forest thinning on the diversity, abundance, and habitat More...