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Reports suggest 19 species of amphibians critically endangered

| JANUARY 22, 2019, 03:53 AM IST

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The research scientist Dr K P Dinesh from the Zoological Survey of India Western Regional Centre Pune has compiled a comprehensive checklist of Indian amphibians which has been updated and launched on the Zoological Survey of India website on January 18. Along with Dr Dinesh the checklist has contributions from Dr C Radhakrishnan (Calicut), Dr B H Channakeshavamurthy (ZSI Calicut), P Deepak (Mount Carmel College, Bengaluru) and Nirmal U Kulkarni (Mhadei Research Centre Goa).  

While elaborating on the importance of frogs in the ecology cycle Dr Dinesh states, “Frogs are limbed amphibians leading a dual life, part of life as land forms and part of life as tadpoles in water or aquatic life. Where amphibians are considered as ‘ecological indicators’, very presence of amphibians in an landscape reflects the quality of the habitat.”  

He further deliberates, “Climate change and habitat destruction or habitat fragmentation are considered as threats for amphibian survival or decline,” and advocates the need to go for holistic population studies. “That’s the reason we are highlighting the IUCN status to call or focus on such studies,” maintains Dr Dinesh who will be travelling in the Western Ghats for the next week.  

Since 2009, Scientists of the Zoological Survey of India in collaboration with other institutes have been updating the Indian amphibian checklist periodically. In 2009 the total number of species was 284. In 2010 it was 311, in 2011 it was 314, in 2012 and 2013 it was 342, in 2015 it was 384 and in 2017 it was 405 species.   

The present comprehensive checklist is updated with all the species names, their IUCN conservation status and year of discovery, available till December 2018 and it enlists 432 species of amphibians from India. The nomenclature followed is after Amphibian Species of the World database.   

Among the amphibians listed, 19 species are treated as critically endangered and 33 species as endangered. It highlights 19 % of amphibians as data deficient species and about 39% as not assessed by IUCN. It is high time to assess the IUCN status for the Indian ‘Not Assessed’ amphibians (39 %, 169 species) based on species specific field exploration.   

This updated comprehensive checklist will help students of Herpetology, researchers and conservation scientists as well as policy makers to understand the diversity of Indian amphibians and their up to date nomenclature.   

To the Indian amphibian checklist around 148 species have been added since the year 2009. Most of these additions are due to concerted efforts of amphibian researchers across the biodiversity hotspots of India.   

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