It is based on ‘direct-transect count’ methodology
A two-day census operation to enumerate wildlife commenced at Point Calimere wildlife sanctuary to coincide with the all-India tiger census in tiger habitats across the country.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/wildlife-census-begins-point-calimere-sanctuary
[2] http://admin.indiaenvironmentportal.org.in/category/author/pv-srividya
[3] http://admin.indiaenvironmentportal.org.in/category/newspaper/hindu-chennai
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/tamil-nadu
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/point-calimere-sa
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/tiger
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/wild-boar
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/census-habitat-monitoring
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/wildlife