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Current Affairs

Building bridges in forest to help wildlife

Date: 09 December 2020 Tags: Miscellaneous

Issue

Ramnagar Forest Division in Nainital district, Uttarakhand has recently built its first eco-bridge for reptiles and smaller mammals near busy roads.

 

Background

Roads in wildlife corridors prove to be fatal as they are the reason for death for large number of species especially reptiles.

 

Details

  • Type of eco-bridges include canopy bridges (usually for monkeys, squirrels, and other arboreal species); concrete underpasses or overpass tunnels or viaducts (usually for larger animals); and amphibian tunnels or culverts.

  • Usually these bridges are overlaid with planting from the area to give it a contiguous look with the landscape.

  • A study has noted that more than 50,000 km of road construction projects have been identified to be constructed across different parts of the country and many pass through wildlife protected areas.

  • The National Highway passing through Kaziranga Karbi-Anglong landscape in Assam and the state highway cutting through Nagarhole National park in Karnataka are some of the examples.

  • Future wildlife bridges as built in various parts such as Maharashtra and Madhya Pradesh border, Chennai-Bangalore National highway near Krishnagiri district as well as near Tadoba-Andhari Tiger reserve.

 

Nagarhole

  • Nagarhole National Park is a national park located in Kodagu district and Mysore district in Karnataka. 

  • It is one of India's premier Tiger Reserves along with the adjoining Bandipur Tiger Reserve and Wayanad Wildlife Sanctuary.

  • This park was declared the thirty seventh Project Tiger, Tiger reserves of India in 1999. It is part of the Nilgiri Biosphere Reserve.

  •  The Western Ghats Nilgiri Sub-Cluster of, including all of Nagarhole National Park, is under consideration by the UNESCO World Heritage Committee for selection as a World Heritage Site.

  • The park has rich forest cover, small streams, hills, valleys, and waterfalls. The park has a healthy predator-prey ratio, with many tigers, Gaur, elephants, Indian leopards, and deer (Chital, Sambar, etc.).

  • Together with the adjoining Bandipur National Park, Mudumalai National Park, and Wayanad Wildlife Sanctuary, it forms the largest protected area in Southern India.

 

Tadoba-Andhari

  • The Tadoba Andhari Tiger Reserve is a wildlife sanctuary in Chandrapur district of Maharashtra state.

  • It is Maharashtra's oldest and largest national park. Created in 1955, the reserve includes the Tadoba National Park and the Andhari Wildlife Sanctuary. 

  • "Tadoba" is taken from the name of the god "Tadoba" or "Taru", worshipped by the tribes who live in the dense forests of the Tadoba and Andhari region, while "Andhari" refers to the Andhari river that meanders through the forest.

  • Aside from the keystone species, the Bengal tiger, Tadoba Tiger Reserve is home to other mammals, including: Indian leopards, sloth bears, gaur, nilgai, dhole, striped hyena, small Indian civet, jungle cats, sambar, barking deer, chital, chausingha and honey badger.