Harlequin Frogs Lose Toxic Defense in Captivity, Study Shows
GS3Economy · S&T · Environment · Security· Biodiversity & conservation· Prelims·
Why in news
A study by UC Berkeley and PARC reveals that Harlequin frogs lose their toxic skin defense in captivity, complicating conservation efforts against the chytrid fungus.
Background
81% of Harlequin frog species (Atelopus) are in decline, with 56% possibly extinct. Research shows captive-born frogs lack tetrodotoxin, a key defense against predators. The Harlequin Toad Conservation Action Plan (HarleCAP) is a 20-year initiative to save these species.
Facts for Prelims
- EnvironmentHarlequin frogs (Atelopus) are known for their toxic skin defense.
- EnvironmentChytrid fungus is a major driver of amphibian population decline globally.
- Fact56% of Harlequin frog species are currently classified as possibly extinct.
- S&TTetrodotoxin is a potent neurotoxin used by certain species as a chemical defense.
For Mains
Q. Discuss the challenges faced in ex-situ conservation of endangered amphibians and the role of biological defenses in species survival.
Dimensions to cover in your answer
- impact of captive breeding on genetic/biological traits
- threat of chytrid fungus
- role of HarleCAP in long-term conservation
- biotechnology interventions for toxin restoration
Keywords: ex-situ conservation · biodiversity loss · chemical defense · chytrid fungus · species extinction
More Environment & Ecology notes
- Asiatic lions roam free, claiming diverse habitats from hills to coast in Saurashtra · 10 August 2026
- Bengaluru Activists Form Human Chain to Stop ₹17,770 Crore Tunnel Road Project Threatening Lalbagh · 9 August 2026
- GBA bans Plaster of Paris and non-biodegradable Ganesh idols in Bengaluru · 9 August 2026
- Floods Kill 98 in Assam; Chief Minister Seeks 'National Solution' · 9 August 2026
- Andhra Pradesh Brings in 30 Gaurs and 4 Tigers to Revive NSTR Wildlife · 8 August 2026
- Tamil Nadu Finance Minister Announces TN-SHORE Project to Restore 2,500 Hectares of Mangroves · 6 August 2026
Something wrong, or something missing?
Spotted a mistake in a note, or want a topic, format or PDF that would help your preparation? Write to us. We read every mail and fix errors fast.
Report a mistake →Ask for something →thesatyadheesh@gmail.com
This note is generated automatically from SatyaDheesh's news feed and mapped to the UPSC CSE syllabus. Check facts against the original report or PIB before using them in an answer.