Details: for systematic biodiversity assessment, tirunelveli district has been divided into five distinct ecological zones, each further subdivided into 5-square-kilometer grids to facilitate structured data collection. reserved forests: kalakad mundanthurai tiger reserve (kmtr), agasthyamalai biosphere reserve, and other protected forests.key ecosystems: tropical evergreen forests,moist deciduous forests, and shola grasslands.sampling strategy: stratified random sampling based on elevation, habitat types, and forest composition tamiraparani river system: covering the main river channel, tributaries, riparian zones, and associated wetlandskey ecosystems: fresh water ecosystems, riparian forests, and aquatic habitats.sampling strategy: transect surveys along river banks and tributaries with an emplhasis on aquatic and semi-aquatic species. wetlands: including ponds, lakes, marshes and fields.key ecosystems: fresh water wetlands and irrigation tanks.sampling strategy: quadrat sampling for vetet
Sector: Forest and Environment