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  • Rio Pescado stubfoot toad

    Rio Pescado stubfoot toad

    Atelopus balios

    In the 1980s, frog species suddenly disappeared worldwide, including the Rio Pescado stubfoot toad, one of around 130 species of harlequin toads. The main reason was the chytridiomycosis fungus, which decimated the amphibian populations. Fungal spores seem to have reached previously untouched places where the amphibians were defenceless against the new pathogen. The toad was long thought to be extinct until it was rediscovered at three locations in the rainforest in Ecuador in 2010. The small number of only ten known tadpoles found underlines the threat. To ensure their survival, conservation breeding networks have been set up in Ecuador, the USA and Europe. These breeding programs have already led to an increase
    to almost 400 individuals of the highly endangered Rio Pescado stubfoot toad.

    Classification Frogs, family of true toads (Bufonidae, 657 species)
    Habitat In tropical rainforests of northwestern South America, near small streams
    Behaviour Diurnalground dweller
    Diet Insects
    Weight 5-7 g
    Body length Females 35-37 mm, males 28-32 mm
    Clutch (spawning) Spawning strings are attached to stones in streams
    Duration of spawning to hatching 1-2 weeks
    Stage as tadpole 80-120 days to metamorphosis
    Use Terraristics for reserve populations (ex-situ)
    Current population Living in the wild: Unknown, declining; reserve population in human care: 378 individuals
    At Zurich Zoo since 2024

    Distribution

    Verbreitungskarte Rio-Pescado-Stummelfusskröte
    Image

    Conservation status

    IUCN RedList