Comprehensive Examination at CES on 10 July 2017 at 2:30 pm titled "Through the Eyes of Blindsnakes: Biogeography of India using Typhlopoids as a model system" by Chinta Sidharthan from CES, IISc
The Indian subcontinent’s association at different time periods with different landmasses, and the intense climatic changes it has undergone have been evident in the presence of taxa with various biogeographic affiliations on the subcontinent. Studying the diversity and distribution patterns of the Indian biota will also help understand the role of these climatic and ecological processes in speciation. Due to their fossorial nature, blindsnakes have been a largely unexplored group. They are an excellent system to study, to further understand the role of India’s geological history in the present faunal distributions, given the evidence that they have various modes of dispersal, including oceanic dispersal. Some species are also quite widespread, spanning various biomes. This study aims to decipher the various biogeographical affiliations of the four genera of blindsnakes- Indotyphlops, Grypotyphlops, Argyrophis and Gerrhopilus - found in India, using an integrative approach. We also attempt to study the role of the establishment of monsoons and the subsequent aridification in the northern and central regions of India in the speciation processes that have resulted in the current blindsnake diversity. This will also help in understanding the actual diversity of this highly understudied group and resolve their taxonomy in the process.