27th March 2023 (5 Topics)
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Gandhamardan hills become 3rd biodiversity heritage site in Odisha
Context
The Odisha government has declared the Gandhamardan hill as the third biodiversity heritage site of the state by giving it the status of a unique, ecologically fragile ecosystem having rich biodiversity.
About
- The hill spans 18,963.898 hectare over Bolangir and Bargarh districts.
- Flora: The floral diversity of Gandhamardan hills comprises of 1,055 plant species that include 849 angiosperms, 56 pteridophytes, 40 bryophytes, 45 lichens and 2 gymnosperms and 63 species of macrofungi.
- Fauna: The faunal diversity comprises 500 species of animals that include 43 species of mammals, 161 species of birds, 44 species of reptiles, 16 species of amphibians, 118 species of butterflies, 27 species of dragonflies, 7 species of damselflies and 83 species of spiders.
- One angiosperm: ficus conccina var. dasycarpa and one spider: peucetia harishankarensis are endemic to this hill.
- With this announcement, Gandhamardan has become the 37th biodiversity heritage site of India, along with the Majuli island of Assam, Nallur Tamarind grove of Bangalore, Khlaw Kur Syiem KmieIng sacred grove of Meghalaya and Naro Hills of Madhya Pradesh.
- The Mandasaru gorge in Kandhamal district was notified as the first such site in Odisha in 2019, followed by Mahendragiri hills in 2022.
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Historical Significance
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What are Biodiversity Heritage Sites?
- Biodiversity heritage sites are well-defined areas under the National Biodiversity Authority that are unique, ecologically fragile ecosystems – terrestrial, coastal and inland waters and, marine – having a rich ecosystem comprising any one or more of the following components: richness of wild as well as domesticated species or intra-specific categories, high endemism, presence of rare and threatened species, keystone species, species of evolutionary significance, wild ancestors of domestic/ cultivated species or their varieties, past pre-eminence of biological components represented by fossil beds and having significant cultural, ethical or aesthetic values and are important for the maintenance of cultural diversity, with or without a long history of human association with them.
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