Status and Trends

Reports & Publications

Status and Trends of the Nation's Biological Resources, vols. 1-2

Subtopics

Contaminants

Air Water Soil Animals Plants

Amphibians

Frogs & Toads Salamanders

Related Subjects

Agricultural Practice (Impacts)

Threatened and Endangered Species

Amphibians+Contaminants
(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...?

Amphibians & Reptiles

Antarctica is the only continent that has no native amphibian species. Amphibians and reptiles are very important vertebrates on the Pacific Islands. Surprisingly, given their importance, there are only six reptiles native to the Hawaiian Islands and all of them live in the sea. The rest of Hawaii's reptiles and amphibians are invaders. Learn more about amphibians from the NBII Pacific Basin Information Node website

8 Total Items

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Contaminant Exposure and Effects-Terrestrial Vertebrates database (CEE-TV)

Publisher: USGS | Science Center: Patuxent Wildlife Research Center (PWRC, Laurel) | Format: URL

www.pwrc.usgs.gov — Information about ecotoxicological exposure and its effects on terrestrial vertebrates residing in estuarine and coastal habitats like the Atlantic, Gulf and Pacific Coasts, Alaska and Hawaii, as well as the Great Lakes. These vertebrates include birds, mammals, amphibians and reptiles. The data is a compilation of results from computerized More...

Biological and Ecotoxicological Characteristics of Terrestrial Vertebrates Introduction

Publisher: USGS | Science Center: Patuxent Wildlife Research Center (PWRC, Laurel) | Format: URL

www.pwrc.usgs.gov — BEST Large River Fish Health Data Query Tool provides a simplified portal for accessing database that serves fish health endpoints measured through the Biomonitoring of Environmental Status and Trends (BEST) Project's Large River Monitoring Network (LRMN). The tool allows the user to search the database by species, chemical, river basin, sampling More...

Assessment of Selenium and Atrazine Exposure and Effects to Wildlife at the North Platte National Wildlife Refuge, Scottsbluff, Nebraska

Publisher: USGS | Science Center: Columbia Environmental Research Center (CERC, Columbia) | Format: URL

www.cerc.usgs.gov — The primary goal of the proposed research is to evaluate selenium and atrazine exposure and effects to fish, amphibians, and waterfowl that utilize the Refuge. The following subordinate objectives will be met to investigate selenium exposure and effects to wildlife on the Refuge: 1.Measure selenium concentrations and total organic content in 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...

Texas Gulf Coast Field Research Station

Publisher: USGS | Science Center: Columbia Environmental Research Center (CERC, Columbia) | Format: URL

www.cerc.usgs.gov — The BFRS works cooperatively with team members from CERC and with faculty and graduate students of Department of Wildlife and Fisheries Sciences at Texas A&M University in research areas represented by the branch structure of the CERC including toxicology, ecology, biochemistry and physiology, environmental chemistry, ecogeography, and information 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...

Biological and Ecotoxicological Characteristics of Terrestrial Vertebrates Introduction

Publisher: USGS | Science Center: Patuxent Wildlife Research Center (PWRC, Laurel) | Format: URL

www.pwrc.usgs.gov — Written summaries of biological characteristics and contaminant exposure and effects data for 38 coastal and estuarine terrestrial vertebrates are available. Species were selected based on their previous use in contaminant monitoring, their status as valued natural resources, or as representatives of taxonomic groups. Characterizations were More...