India is an exotic land of iconic wildlife, secret locations, epic terrains and colourful beauty. From the snow-capped Himalayas and mighty Ganges to the lost world of the north-east. This documentary features the Western Ghats, known locally as the Sahyadri Hills, which are made up of the Malabar Plains and a continuous chain of mountains. The Western Ghats are a mountain range that runs almost parallel to the western coast of Indian peninsula. It is a UNESCO World Heritage Site and is one of the eight "hottest hotspots" of biological diversity in the world. It is sometimes called the Great Escarpment of India. The range runs north to south along the western edge of the Deccan Plateau, and separates the plateau from a narrow coastal plain, called Konkan, along the Arabian Sea. A total of thirty nine properties including national parks, wildlife sanctuaries and reserve forests were designated as world heritage sites - twenty in Kerala, ten in Karnataka, five in Tamil Nadu and four in Maharashtra. The range starts near the border of Gujarat and Maharashtra, south of the Tapti river, and runs approximately 1,600 km (990 mi) through the states of Maharashtra, Goa, Karnataka, Tamil Nadu and Kerala ending at Kanyakumari, at the southern tip of India. These hills cover 160,000 km2 (62,000 sq mi) and form the catchment area for complex riverine drainage systems that drain almost 40% of India. The Western Ghats block southwest monsoon winds from reaching the Deccan Plateau. The average elevation is around 1,200 m (3,900 ft). The area is one of the world's ten "Hottest biodiversity hotspots" and has over 7,400 species of flowering plants, 139 mammal species, 508 bird species, 179 amphibian species and 288 freshwater fish species; it is likely that many undiscovered species live in the Western Ghats. At least 325 globally threatened species occur in the Western Ghats. The Western Ghats, also known as the Sahyadri Hills, are well known for their rich and unique assemblage of flora and fauna. Norman Myers included the Western Ghats amongst the 25 biodiversity hot-spots identified in the world. The Western Ghats extend from the Satpura Range in the north, go south past Goa, through Karnataka and into Kerala and Tamil Nadu end at Kanyakumari embracing Indian ocean. The major hill range starting from the north is the Sahyadhri (the benevolent mountains) range. This range is home to many hill stations like Matheran,Lonavala-Khandala, Mahabaleshwar, Panchgani,Amboli Ghat, Kudremukh and Kodagu. The range is called Sahyadri in northern Maharashtra and Sahya Parvatam in Kerala. The Biligiri ranges southeast of Mysore in Karnataka, meet the Shevaroys (Servarayan range) and Tirumala range farther east, linking the Western Ghats to the Eastern Ghats. In the south the range is known as the Nilagiri malai in Tamil Nadu. The northern portion of the narrow coastal plain between the Western Ghats and the Arabian Sea is known as the Konkan Coast or simply Konkan,the central portion is called Kanara and the southern portion is called Malabar region or the Malabar Coast. The foothill region east of the Ghats in Maharashtra is known as Desh, while the eastern foothills of central Karnataka state is known as Malanadu. The Biligirirangan Hills lies at the confluence of the Western and Eastern Ghats. WAPCO region under western Ghats covers twelve administrative districts of Kerala State.

• published: 23 Apr 2015
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