Geospatial mapping of ecoraces of tasar silkworm (Antheraea mylitta Drury) using remote sensing and geographic information system techniques

Tropical Tasar silkworm Antheraea mylitta Drury (Family: Saturniidae) produces silk which has very high demand globally and because of their wide range distribution in tropical regions, they have adapted to different niches forming ecoraces. In Odisha, alone seven types ecoraces A. been reported, namely Modal, Sukinda, Nalia, Jata-Daba, Adaba, Umerkote, Boudh. These show differences phenotypes, genetic constitution, fecundity, voltinism, etc. the past few decades, there is substantial deterioration habitats due many anthropogenic activities. This resulted a large decline wild cocoon production. Lepidopterans are accepted as ecological indicators ecosystem health it apprehended that through climatic factors this precious resource, took millions years evolve, may face threat extinction shortly if adequate conservation measures not taken. paper attempts geospatial mapping these state Odisha RS GIS tools, will provide greater scenario for