Alumnus, Oceans and Coasts
For the past few years, I have worked (alongside colleagues) on a range of basic and applied studies in marine systems. These include studies on understanding the role of local institutions in governing resource use, socio-ecological resilience, illegal marine trade, interactions between dugongs and sea-grass meadows, amongst others. For my doctoral research I evaluated impact of tsunami on the coral reef communities and marine resource utilisation in the Nicobar archipelago.
My broad research interests are in understanding animal behaviour, species interactions, socio-ecological resilience, and ecosystem level processes in marine environments. In the future, I plan to continue studying coral reefs, dugongs, dolphins, coconut crabs and socio-ecological systems in marine environment.
Vardhan continues to work actively in the Andaman and Nicobar Islands, and is currently pursuing a post-doctoral programme with WCS India.
- Journal Article2016For traditional island communities in the Nicobar archipelago, complete no-go areas are the most effective form of marine managementFor traditional island communities, no-go areas are the most effective form of managementOcean & Coastal Management 133, 53-63 http://dx.doi.org/10.1016/j.ocecoaman.2016.09.003Download
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For traditional island communities in the Nicobar archipelago, complete no-go areas are the most effective form of marine management
The ability of local communities to sustainably manage natural resource harvests in coral reefs ecosystem depends heavily on the strength of traditional institutions. Coastal communities have evolved a suite of restrictive practices to control marine offtake and there is considerable recent evidence of their effec- tiveness in protecting and enhancing resource stocks. However, traditionally imposed restrictions can vary considerably in their complexity and in their functional effectiveness. The indigenous communities of the Nicobar Islands are dependent on marine resources for sustenance, managing them with a range of traditionally imposed restrictions. These include limited entry to certain locations, closed seasons and areas, and restrictions on species, size-classes of fish and fishing methods. We tested the relative effectiveness of protection in areas managed under different traditional control regimes by comparing the abundance and biomass of targeted fish groups in managed and unmanaged areas. Our results indicate that reef sites with the strictest form of restriction e essentially no-go areas e had significantly higher abundance and biomass values of most functional groups of fishes compared with partially protected and control locations. In contrast, targeted food fish stocks did not differ from control locations in partially protected sites managed with even complex forms of traditional management. Ensuring that traditional harvest rules are complied is critical to the success of any management system, and our re- sults suggest that they can be most strictly enforced in traditional no-go areas. Our work highlights the importance of critically evaluating the factors influencing traditional management systems to strengthen their ability to protect these reefs from unsustainable overharvest.
- Popular Article2016On the Andaman and Nicobar Islands, humans and crocodiles are locked in a conflicthttp://www.firstpost.com/living/on-the-andaman-and-nicobar-islands-humans-and-crocodiles-are-locked-in-a-conflict-3078280.html
- Popular Article2016“ A Hundred More Years To Go”: A Tribute to Dr. Chhapgarhttp://www.sanctuaryasia.com/magazines/features/10196--a-hundred-more-years-to-go-a-tribute-to-dr-chhapgar.html
- Popular Article2016The Bay Island Lizard: My Work CompanionsSanctuary Asia, January. http://www.sanctuaryasia.com/magazines/features/10184-the-bay-island-lizard-my-work-companions.html
- Popular Article2016Attacks in the AndamansDown to Eath, 16th to 30th November issue
- Popular Article2016Is there a future for wetland birds of Sippighat?http://www.downtoearth.org.in/blog/is-there-a-future-for-wetland-birds-of-sippighat--54276
- Popular Article2016Living with change: local responses to global impactsCurrent Conservation, issue 10.2 http://www.currentconservation.org/?q=issue/10.2
- Popular Article2015Jewels of the seabedThe Hindu in School, October 14
- Journal Article2015Synchronous Spawning of the Sea CucumberHolothuria (Lessonothuria) pardalisSelenka, 1867 in the Andaman Archipelago, IndiaJournal of Bombay Natural History Society, 112 (2) 10.17087/jbnhs/2015/v112i2/104950
- Journal Article2015Erosion of Traditional Marine Management Systems in the Face of Disturbances in the Nicobar ArchipelagoHuman Ecology, DOI 10.1007/s10745-015-9781-x