Individual identification of Duttaphrynus melanostictus (Schneider, 1799) (Amphibia: Anura: Bufonidae) based on dorsal wart patterns

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Uddalak Tathagato Bindhani
https://orcid.org/0000-0002-8380-3874
Abhijit Das
https://orcid.org/0000-0002-5851-8457

Abstract

The dorsal surface of Duttaphrynus melanostictus is covered with keratinized warts of various sizes and shapes.  Using combinations and patterns of cranial and mid dorsal warts, we attempted to identify individual toads from a natural population as a non-invasive alternative to existing marking techniques based on toe clipping, pit tagging, and subcutaneous elastomer injections to facilitate population estimates.  An accuracy of 100% identification was achieved via this method, making it a potent tool for population studies in this species that is faster, cheaper and less disruptive than standard marking techniques.

Article Details

How to Cite
[1]
Bindhani, U.T. and Das, A. 2018. Individual identification of Duttaphrynus melanostictus (Schneider, 1799) (Amphibia: Anura: Bufonidae) based on dorsal wart patterns. Journal of Threatened Taxa. 10, 13 (Nov. 2018), 12755–12768. DOI:https://doi.org/10.11609/jott.2823.10.13.12755-12768.
Section
Communications
Author Biographies

Uddalak Tathagato Bindhani, Forest Research Institute (Deemed) University, Forest Research Institute, P. O. New Forest, Dehradun, Uttarakhand 248006, India

Mr. Uddalak Tathagato Bindhani is Project Fellow (Ecology) in the project entitled ‘Population Management of species involved in Human-Wildlife Conflict’, at the Wildlife Institute of India. He is interested in understanding the effects of anthropogenic activities on the behavioural ecology of wild fauna

Abhijit Das, Wildlife Institute of India, Post Box #18, Chandrabani, Dehradun, Uttarakhand 248001, India

Dr. Abhijit Das is Scientist/Faculty with the Department of Endangered Species Management, Wildlife Institute of India. His research interests lie in understanding the evolutionary origin and diversification of Himalayan herpetofauna.

References

Begon, M. (1979). Investigating Animal Abundance: Capture-recapture for Biologists. Edward Arnold (Publishers) Ltd., 97pp.

Bradfield, K.S. (2004). Photographic Identification of Individual Archey’s Frogs, Leiopelma archeyi, from Natural Markings. Department of Conservation, Wellington, New Zealand, 36pp.

Caorsi, V.Z., R.R. Santos & T. Grant (2012). Clip or snap? An evaluation of toe-clipping and photo-identification methods for identifying individual Southern Red-Bellied Toads, Melanophryniscus cambaraensis. South American Journal of Herpetology 7(2): 79–84.

Caughley, G. & A.R.E. Sinclair (1994). Wildlife Ecology and Management. Blackwell Science, Oxford, 334pp.

Daniel, J.C. (2002). The Book of Indian Reptiles and Amphibians. Bombay Natural History Society and Oxford University Press, Bombay, 252pp.

Daniels, R.J. (1994). Dorsal warts identify individual common Indian toads. Cobra 16: 22–24.

Daniels, R.R. (2005). Amphibians of peninsular India. Universities Press, India, 337pp.

Donnelly, M.A., C. Guyer, J.E. Juterbock & R.A. Alford (1994). Techniques for marking amphibians; pp 277– 284. In: Heyer, W.R., M.A. Donnelly, R.W. McDiarmid, L-A.C. Hayek & M.S. Foster (eds.). Measuring and Monitoring Biological Diversity: Standard Methods for Amphibians. Smithsonian University Press, Washington DC, 384pp.

Heyer, W.R., M.A. Donnelly, R.W. McDiarmid, L-A.C. Hayek & M.S. Foster (eds.) (1994). Measuring and Monitoring Biological Diversity: Standard Methods for Amphibians. Smithsonian University Press, Washington DC.

Lettink, M. (2012). Herpetofauna: population estimates (using capture - mark - recapture data) Version 1.0. Inventory and monitoring toolbox: herpetofauna. Department of Conservation, Govt. Of New Zealand, 27pp.

Sanchez, E., S. Gippner, M. Vences, K. Preißler, I.J. Hermanski, B.A. Caspers, E.T. Krause, S. Steinfartz & F.W. Kastrup (2018). Automatic quantification of color proportions in dorsal black and yellow colored amphibians, tested on the Fire Salamander (Salamandra salamandra). Herpetology Notes 11: 73–76.

Stuart, S.N., J.S. Chanson, N.A. Cox, B.E. Young, A.S. Rodrigues, D.L. Fischman & R.W. Waller (2004). Status and trends of amphibian declines and extinctions worldwide. Science 306(5702): 1783–1786; https://doi.org/10.1126/science.1103538

Sutherland, W.J. (ed.). (2006). Ecological Census Techniques: A Handbook. Cambridge University Press, United Kingdom, 448pp.

Whittaker, K., M.S. Koo, D.B. Wake & V.T. Vredenburg (2013). Global declines of amphibians, pp. 691–699. In: Levin, Simon A. (eds.) Encyclopedia of Biodiversity: Vol III. Academic Press, 5504pp; https://doi.org/10.1016/B978-0-12-384719-5.00266-5