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The disease of the murderous frog "part of the sixth mass extinction of the Earth"



Jonathan E. Colby, Honduras

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A sponge that kills amphibians is responsible for the largest documented loss of nature from one disease, researchers say.

Better restrictions on biowaste and wildlife trade are urgently needed to prevent more extinction, they say. Chytridiomycosis, has caused massive deaths of frogs, frogs and salamanders over the last 50 years, including the disappearance of 90 species, according to a review of evidence

It has spread to over 60 countries. Particularly heavily affected are Central America and South America. "Strongly virulent wildlife, including chitridiomycosis, contributes to Earth's sixth mass extinction," said Dr. Ben Shele of the Australian National University in Canberra.

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Titrimenian colored frog infected with a chit

Three decades ago, scientists began to notice that the amphibians are dying around the world. The suspect is identified as a sponge called Batrachochytrium dendrobatidis (Bd), which attacks the skin of the amphibians, effectively eats them alive.

  • A great review of the evidence published in the journal Science reveals:

    • The sponge has ejected at least 501
      amphibians to extinction (6.5% of the known species)
    • 90 are confirmed or supposedly extinct in nature, other species have fallen by more than 90%
    • many species, fungus is the main factor in the death of amphibians, but in others it acts together with habitat loss, climate change and the predation of invasive species to drive species to oblivion

    19659018] Have cats to be destroyed to stop the disappearance?

  • A new "mysterious" frog discovered in India
  • Scientists say that globalization and trade in wildlife are the main causes of this global pandemic
  • move plants and animals around the world at an ever faster rate, introducing pathogens into new areas, "said Dr. Shele. [196590023] Image copyright
    Image ID:

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    Man from Telmatobius sanborni of Pelechuco, La Paz, Bolivia, taken in March 2001

    According to two Canadian experts, the mushroom is "another nail in the coffin for the world's amphibious condition."

    Habitat loss, exploitation and climate change are still the main threat to thousands of species, say Dan Greeneberg. and Wendy Palon of the Simon Fraser University in Burnaby, Canada.

    "These stressors often act in concert, but there are clear management actions to address at least some of them: protecting habitats, limiting wildlife collection, and curbing trade," they write in an article commenting on the new study in science.

    Follow Elena on Twitter .


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