1. Frogs in the City:What do they Indicate? Gururaja KV Centre for infrastructure, Sustainable Transportation and Urban Planning (CiSTUP) Indian Institute of Science, Bangalore gururajakv@gmail.com
2. Flow of talk What are frogs? What if, they are not in a city? The Crisis! What we do at CiSTUP?
5. Frogs are Amphibians What are amphibians? Those vertebrates that live both in water as well as on land That’s what is taught! Photo credit: http://divebarbados.net/Current%20Photos/Pictures/Green%20Turtle%201.jpg http://www.kidcyber.com.au/IMAGES/hippoaggro_s.jpg http://homepage.mac.com/wildlifeweb/reptile/gharial/gharial03tfk.jpg
6. Amphibians are dual lifers! Two stages in life – a tadpole stage and an adult stage From Greek, Amphi – dual, bian – life forms
7. What if, they are not in City? Biological controllers
8. What if… Bio-indicators Indicators of environmental health Earthquake early warning systems Before that briefly about their uniqueness Biphasic life Ectotherms Skin breathers Anamniotes
15. Bio-indicators Indicators of environmental health Decline in population Malformations, diseases Call at higher pitch in cities!
16. Earthquake early warning systems They detect changes in ionsphere (Grant and Halliday, 2010) Perturbations in Ionsphere five days prior to earthquake (detected by VLF and LF) Possible reason is change in radon content in atmosphere, detected through skin VLF # toads Days
19. More on AMP… Image courtesy : Panama Amphibian Rescue and Conservation Project
20. Cultural issues Frog Hymn (Rig Veda, Mandala 7) http://www.ejvs.laurasianacademy.com/ejvs0302/ejvs0302.txt Dvija – dual life!! Frog in the boiling water Frog marriage and monsoon Mowgli!!! Photos: http://i2.photobucket.com/albums/y47/reneesparkes/Newer%20stuff/Jungle_Book_Mowgli_Kaa_657.jpg http://therealrevo.com/blog/wp-content/uploads/2009/05/blog20220boiling_frog.jpg
21. How many are there? Recorded 6639 species of amphibians world wide 3 orders, Gymnophiona-183, Caudata-597, Anura-5859 In India, 309 species; Gymnophiona-33, Caudata-1, Anura-275 caudata Anura Gymnophiona
22. The Crisis Nearly 1/3 of species are endangered, 200 species disappeared in two decades Main reason for decline – Habitat fragmentation, alteration and attrition Pesticide usage induce malformations and weaken immune system UV-B radiations, climate change Fungal infection - Chytridiomycosis Homogenization of species diversity Data available are poor! Many more to vanish before recording?
23. Save the frogs before its too late! In Urban Environment
24. But what do we know from cities? In India Darjeeling 1962, 7 species Pune 1976,77, 79, 13 species; in 2009, 14 species, 9 out of the city, 4 beyond 20km Dharwad 1989, 13 species Bangalore 1999, 16 species (Karthikeyan and Daniels); Bangalore Valley School 2008, 12 species (Vishnupriya, 2008)
25. Apart from ‘list’, nothing! So no statistical comparison possible Cannot say to decision makers, what needs to be done? But changes in Bangalore are obvious… # Tanks in Bangalore has come down (379 in 1973 and 81 at present, Ramachandra and Malvikaa, 2007) Temperature on rise (~2-2.5°C), Green spaces are decreasing (46000ha in 1973 – 11000ha in 2009; (Ramachandra and Uttam, 2010) Land-conversion rampant Trees along the road side gone!
30. What we do at CiSTUP? Base line data on Amphibians of Bangalore Document species in each water tank/green space Drivers of change Citizen science initiative Hands on training
31. Acknowledgements SV Krishnamurthy for introducing me to Frogs TV Ramachandra for introducing me to Urban systems TG Sitharam for accommodating me in CiSTUP
32. Special thanks This work was not possible otherwise, if the people mentioned below had not accompanied me in field and made me feel secure, while they took the pain of travelling during night hours, amidst dense forest, heavy rains, tough terrain, creeping creatures and frightening animals. Special thanks to you all - Sameer Ali, Vishnu D Mukri, Karthick B, Sreekantha, SrikanthNaik, Lakshminarayana, Nayak CR, Dinesh KP, AmitYadav, Seshadri KS, Dhanpal G Naidu, Alkananda, Supriya, Uttam Kumar, Hemant Ogle, Palot MJ, Divakar K Mesta, Rao GR, Sudhira HS, VijayaCavale, Harish Bhat, Sumanth, Thulasiraman, Vishnupriya S, Mittal Gala, RamanathChandrashekar, DayaniChakravarthy, VipulRamanuj, SrinidhiKashyap, Subramanian KA, GowriShanker, PradeepGangadkar AS, Archna Singh, Boominathan M, SubashChandran MD, Nisarg R Prakash, Ganesh HS, Aravind NA, Vijay Mohan Raj, Manoj Kumar, Lingaraja, Manikantan, Avinash KG, Suresh GB, Manjunatha MJ, Manjunatha Reddy, SushantoSen, Vijay Kumar SP, VarunTorsekar, Doris, Preetiand forest guards, watchers and many on lookers.