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The Andaman Islands are an archipelago in the northeastern Indian Ocean about 130 km (81 mi) southwest off the coasts of Myanmar's Ayeyarwady Region. Together with the Nicobar Islands to their south, the Andamans serve as a maritime boundary between the Bay of Bengal to the west and the Andaman Sea to the east. Most of the islands are part of the Andaman and Nicobar Islands, a Union Territory of India, while the Coco Islands and Preparis Island are part of the Yangon Region of Myanmar.
The Andaman and Nicobar Islands is a union territory of India consisting of 572 islands, of which 38 are inhabited, at the junction of the Bay of Bengal and the Andaman Sea. The territory is about 150 km (93 mi) north of Aceh in Indonesia and separated from Thailand and Myanmar by the Andaman Sea. It comprises two island groups, the Andaman Islands (partly) and the Nicobar Islands, separated by the 150 km wide Ten Degree Channel, with the Andaman islands to the north of this latitude, and the Nicobar islands to the south. The Andaman Sea lies to the east and the Bay of Bengal to the west. The island chains are thought to be a submerged extension of the Arakan Mountains.
The Nicobar Islands rain forests is a tropical moist broadleaf forest ecoregion in the Nicobar Islands. The Nicobar Islands are in the Indian Ocean, lying north of Sumatra and south of the Andaman Islands. The islands are politically part of India, although physically closer to Southeast Asia. Millions of years of isolation from the mainland has given rise to a distinct flora and fauna, including many endemic species.
Homonoia is a plant genus of the family Euphorbiaceae first described in 1790. These are rheophytes and usually found in groups at riverbanks in India, southern China, Southeast Asia, and New Guinea.
- Homonoia intermediaHaines - India
- Homonoia retusa Müll.Arg. - India
- Homonoia riparia Lour. - Guangxi, Guizhou, Hainan, Sichuan, Taiwan, Yunnan, Cambodia, India, Assam, Bhutan, Sri Lanka, Borneo, Java, Lesser Sunda Islands, Sulawesi, Sumatra, Maluku, Laos, Malaysia, Myanmar, Philippines, Thailand, Vietnam, New Guinea, Andaman & Nicobar Islands
Narcondam, India's easternmost island, is a small volcanic island located in the northern Andaman Sea. The island's peak rises to 710 m above mean sea level, and it is formed of andesite. It is part of the Andaman Islands, the main body of which lie approximately 74 km (46 mi) to the west.The island is part of the Indian union territory of Andaman and Nicobar Islands. The island is small, covering an area of approximately 6.8 square kilometres. It was classified as a dormant volcano by the Geological Survey of India.
The Nicobar long-tailed macaque is a subspecies of the crab-eating macaque, endemic to the Nicobar Islands in the Bay of Bengal. This primate is found on three of the Nicobar Islands—Great Nicobar, Little Nicobar and Katchal—in biome regions consisting of tropical and subtropical moist broadleaf forests.
India is home to a large variety of wildlife. It is a biodiversity hotspot with its various ecosystems ranging from the Himalayas in the north to the evergreen rain forests in the south, the sands of the west to the marshy mangroves of the east. India lies within the Indomalayan realm and is the home to about 7.6% of mammal, 14.7% of amphibian, 6% of bird, 6.2% of reptilian, and 6.0% of flowering plant species. India's forest lands nurture about 500 species of mammals and more than 2000 bird species.
Dendrobium formosum is a species of orchid.
Barleria prionitis is a shrub in the family Acanthaceae, native to Island and Mainland Southeast Asia, China, the Indian Subcontinent, the Arabian Peninsula and northeastern Africa. It is widely spread as an ornamental and weed, occurring in naturalised populations around the world. It used not only as an ornamental but also as a hedge and extensively as a component of folk medicines. As a weed it is regarded as problematic in many areas.
Ancistrocladus tectorius is a species in the monogeneric family Ancistrocladaceae found in China (Hainan), Cambodia, India, Indonesia, Laos, Malaysia, Myanmar, Singapore, Thailand, and Vietnam. The Vietnamese name is trung quân lợp nhà; Chinese: 钩枝藤, gou zhi teng.
Finschia is a genus of three recognised species of large trees, constituting part of the plant family Proteaceae. They grow naturally in New Guinea and its surrounding region, in habitats from luxuriant lowland rainforests to steep highland forests.
Bridelia retusa is a species of Bridelia found in Bangladesh, Nepal, India, Sri Lanka, southern China, Indochina, Thailand and Sumatra.
Biogeographic classification of India is the division of India according to biogeographic characteristics. Biogeography is the study of the distribution of species (biology), organisms, and ecosystems in geographic space and through geological time. India has a rich heritage of natural diversity. India ranks fourth in Asia and tenth in the world amongst the top 17 mega-diverse countries in the world. India harbours nearly 11% of the world's floral diversity comprising over 17500 documented flowering plants, 6200 endemic species, 7500 medicinal plants and 246 globally threatened species in only 2.4% of world's land area. India is also home to four biodiversity hotspots—Andaman & Nicobar Islands, Eastern Himalaya, Indo-Burma region, and the Western Ghats. Hence the importance of biogeographical study of India's natural heritage.
Mimusops andamanensis is a species of plant in the family Sapotaceae. It is native to Sri Lanka and the Andaman Islands.
Ilex umbellulata is an evergreen tree species related to holly, generally four to fifteen metres in height. It is found in Southeast Asia. This tree is most often found growing in forests.
Elaeocarpus stipularis is a tree in the Elaeocarpaceae family. It is found from the Aru Islands, eastern Indonesia, to Philippines, and through Mainland Southeast Asia to Odisha, India. It has edible fruit, its wood is used and some medical uses are ascribed to it.
Aporosa octandra is a species of plant in the family Phyllanthaceae found from Queensland and New Guinea to Indonesia, Zhōngguó/China and India. It is a highly variable plant with 4 named varieties. Its wood is used in construction and to make implements, its fruit is edible. The Karbi people of Assam use the plant for dyeing, textile colours have quite some significance in their culture.
Aporosa villosa is a species of shrub or small tree in the family Phyllanthaceae. It is found in Southeast Asia, including the Nicobar, Andaman and Paracel Islands. There are some traditional medicinal uses for plant, particularly around care after childbirth. The shrub is often a pioneer species, tolerant of full sun, but intolerant of frequent fires.
The Narcondam shrew is a white-toothed shrew in the family Soricidae. It is endemic to Narcondam Island, a small, remote, volcanic island situated in Andaman Sea and considered part of the Andaman and Nicobar archipelago. It was discovered in April 2020 and was described about a year later in 2021.
The medical ethnobotany of India is the study of Indian medicinal plants and their traditional uses. Plants have been used in India for treatment of disease and health maintenance for thousands of years, and remain important staples of health and folk medicine for millions. Indians today utilize plants for both primary medical care and as supplementary treatment alongside modern medical science. It is estimated that 70% of rural Indians use traditional plant based remedies for primary healthcare needs. This reliance of plants for medicine is consistent with trends widely observed in the developing world, where between 65% and 80% of people use medicinal plant remedies.
References
- ↑ Ganeshaiah, K. N.; Sanjappa, M.; Rao, Raviprasad; Murugan, C.; Shivaprakash, K. N. (2019-08-05). "Spatial distribution pattern of taxonomic and phylogenetic diversity of woody flora in Andaman and Nicobar Islands, India". Forest Ecosystems. 6 (1). doi: 10.1186/s40663-019-0196-9 . ISSN 2197-5620.
- 1 2 Parkinson, C. E. (1984). A forest flora of the Andaman Islands : an account of the trees, shrubs and principal climbers of the islands. R.P. Singh Gahlot for International Book Distributors. ISBN 9788170890126. OCLC 28802601.
- ↑ Singh, Lal Ji (2016-12-05). "Musa paramjitianasp. nov. (Musaceae) from Andaman and Nicobar Islands, India". Nordic Journal of Botany. 35 (1): 77–84. doi:10.1111/njb.01343. ISSN 0107-055X.
- ↑ "Memecylon macneillianum (Melastomataceae), a new species from South Andaman, India". Telopea. 2016. doi: 10.7751/telopea10637 . ISSN 2200-4025.
- ↑ Hajra, Rao and Mudgal (1999). Flora of Andaman & Nicobar Islands. Botanical Survey of India.