Amphibians

Amphibians

Focus on Amphibians

Amphibian populations are in decline in many areas of the world.
In cities and in natural areas, in rainforests and in wetlands, countless areas which previously hosted a range of healthy amphibian populations now have fewer - or even no - frogs, toads, and salamanders. Although healthy populations of some species may exist elsewhere, in some cases, a few species - including Costa Rica's Monteverde golden toad and Australia's Gastric brooding frog - are now believed extinct.

How can you help?
Several amphibian conservation organizations and initiatives are working to stop amphibian declines.

Amphibian Facts


  • Frogs and toads, salamanders, and caecilians are members of the Class Amphibia.
  • Of the world's seven continents, only Antarctica has no native amphibian species.
  • The continental United States is home to at least 230 amphibian species: 90 frog and toad species, and 140 species of salamanders.
  • In the U.S., declines in amphibian populations are particularly serious in California, the Rocky Mountains, the Southwest, and Puerto Rico. Worldwide, decline "hot spots" also include Australia and Central America.
  • Amphibian malformations - extra limbs, malformed or missing limbs, and facial malformations - have been documented in 44 states, and involve nearly 60 species. In some local populations, up to 60% of the amphibians exhibit malformations.
  • Conferences of Interest


     
      Association of Southeastern Biologists 2009 Annual Meeting
    4/1/2009 - 4/1/2009
    Birmingham, Alabama
    United States

      2009 Joint Meeting of Ichthyologists and Herpetologists
    7/22/2009 - 7/27/2009
    Portland, Oregon
    United States

      Ecological Society of America 94th Annual Meeting
    8/2/2009 - 8/7/2009
    Albuquerque, New Mexico
    United States

      2009 Midwest Partners in Amphibian and Reptile Conservation Meeting
    8/13/2009 - 8/15/2009
    Howell, Michigan
    United States

      2009 Annual SAMAB Conference
    11/17/2009 - 11/19/2009
    Asheville, North Carolina
    United States


    In the News

    The National Wildlife Federation's FrogWatch USA program plans to "Record the Ribbit" on Saturday, May 3, 2008., when citizen-scientists will create a "snapshot of a day in the life of frogs," according to the National Wildlife Federation. The day will be an opportunity to celebrate frogs and for citizen-scientists to contribute to amphibian conservation by collecting data about frog and toads. Participants will both listen for "ribbits" and watch for "ribbeters," record their findings, and share them with the world. For more information about Record the Ribbit, visit http://www.nwf.org/ribbit .

    January 2008 marks the start of Amphibian Ark's "Year of the Frog." Representing a group of conservation organizations, "AArk will lead zoos, botanical gardens and aquariums in a globally coordinated public awareness campaign," according to the Amphibian Ark website. AArk hopes to call attention to the "amphibian extinction crisis which represents the greatest species conservation challenge in the history of humanity." For more information, visit AmphibianArk.org or YearoftheFrog.org.

    Possible Cure for Leading Cause of Amphibian Declines
    BBC News reports scientists have discovered a treatment to combat the deadly fungus implicated as a cause of worldwide amphibian declines. "Chloramphenicol, currently used as an eye ointment for humans, may be a lifesaver for the amphibians, they say. The researchers found frogs bathed in the solution became resistant to the killer disease, chytridiomycosis." Read the full story from BBC News.

    Global Amphibian Assessment
    The Global Amphibian Assessment is the first-ever comprehensive assessment of the conservation status of the world's 5,743 known species of frogs, toads, salamanders, and caecilians. This website presents results of the assessments, including IUCN Red List threat category, range map, ecology information, and other data for every amphibian species. Users can search the GAA database for species by name, taxonomy, country, region, habitat type, threat type, or IUCN Red List status.


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    Online Resources with General Amphibian Information
    Search 273 Results Within Online Resources with General Amphibian Information
    Showing 100 of 273
    1.
    Acris crepitans crepitans Baird, Eastern Cricket Frog - Biodiversity of Great Smoky Mountains National Park
    A basic description of the Eastern Cricket Frog found within the Great Smoky Mountains National Park as part of an All Taxa Biodiversity Inventory. This species profile features taxonomic information, an image gallery, illustrations of larvae, a...
    2.
    Alabama's winter frogs
    Learn to identify Alabama's winter frogs by listening to their calls provided as streaming audio or MP3 audio downloads. Includes iamges, audio, and geographic distributions for ten species of frogs and toads that are heard in winter months in Alabama.
    3.
    Ambystoma jeffersonianum - Jefferson Salamander
    Provides information on the Jefferson Salamander, including Red List status, distribution, life history, threats, conservation measures, and utilization.
    4.
    Ambystoma mabeei - Mabee's Salamander
    Provides information on the Mabee's Salamander, including Red List status, distribution, life history, threats, conservation measures, and utilization.
    5.
    Ambystoma maculatum - Spotted Salamander
    Provides information on the Spotted Salamander, including Red List status, distribution, life history, threats, conservation measures, and utilization.
    6.
    Ambystoma maculatum Shaw, Spotted salamander - Biodiversity of Great Smoky Mountains National Park
    A basic description of the Spotted salamander (Ambystoma maculatum) found within the Great Smoky Mountains National Park as part of an All Taxa Biodiversity Inventory. This species profile features taxonomic information, an image gallery,...
    7.
    Ambystoma opacum Gravenhorst, Marbled salamander - Biodiversity of Great Smoky Mountains National Park
    A basic description of the Marbled salamander (Ambystoma opacum Gravenhorst)found within the Great Smoky Mountains National Park as part of an All Taxa Biodiversity Inventory. This species profile features taxonomic information, an image gallery, a...
    8.
    Amphibia: Caudata: Plethodontidae - Plethodon Petraeus
    Detailed species profile for the Pigeon Mountain Salamander (Pletodon petraeus). Includes geographic information, definition, diagnosis, a distribution and occurrence map, descriptions, a photgraph, references for illustrations, Fossil record,...
    9.
    AmphibiaWeb
    AmphibiaWeb is an online system that allows free access to information on amphibian biology and conservation. The provides taxonomic information for every recognized species of amphibian in the world. Species descriptions, life history information,...
    10.
    Amphibians & Reptiles of the Southeastern United States and the U.S. Virgin Islands
    Home page for the Southeast Amphibian Research and Monitoring Initiative guide to Frogs and Toads and Salamanders of the Southeastern United States including Puerto Rico and the Virgin Islands. Links to a glossary, fact sheet, photos, a guide to...

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    Amphibian Species Spotlight
     
    Wood Frog
    [Copyright: J.D. Willson, SREL, used with permission]
     
    Wood Frog
    Rana sylvatica
     
    DESCRIPTION: Medium-sized frog (2-3'') that is usually brown and sometimes green in color. Has a dark mask that covers the eyes and often has stripes on hindlimbs.
     
    HABITAT: Common in moist woodlands.
     
    DISTRIBUTION: Eastern North America up to the Arctic Circle.
     
    STATUS: Common.
     
    RESOURCE: AmphibiaWeb