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Malleco Spiny-chest Frog (Alsodes vittatus)

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March 29, 2025

Prelims – General issues on Environmental ecology, Bio-diversity and Climate Change.

Mains – GS III | Conservation.

Why in News?

Researchers discovered a rare amphibian, once thought to be extinct has resurfaced in Chile, South America recently.

  • Alsodes vittatus is a rare small frog known is endemic to Chile, America.
  • First described by - The German-born naturalist Rudolph Amandus Philippi in 1902 (based on specimens collected in 1893).
  • Habitat – Limited, in isolated mountain streams of Chile.
  • Appearance - Adult males ranged from light brown with yellow and green hues to olive brown, while some juveniles showed darker brown colors.
  • Distinctive feature - A yellowish stripe running the length of its back.
  • In some individuals, this stripe was prominent, while in others, it was completely absent.
  • The Alsodes vittatus populations were found to be genetically close to Alsodes neuquensis, a species previously known only from Argentina.
  • Conservation Status - Despite significant threats to the species, researchers have suggested reevaluating the frog's conservation category from Critically Endangered to Endangered.
  • Threats - Deforestation, the expansion of livestock grazing, invasive species like introduced trout (which may prey on tadpoles), and the looming dangers of climate change.

11

Reference

Daily Galaxy | Alsodes Vittatus

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