Environment & Biodiversity Current Affairs MCQs

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A drone-based survey by the Odisha Forest and Environment Department shows that the saltwater crocodile population is increasing. The saltwater crocodile is the largest and heaviest living reptile and is also known as the estuarine or Indo-Pacific crocodile. It lives in saltwater, brackish wetlands, rivers, and mangroves. The species is found along India’s east coast, Southeast Asia, northern Australia, and Micronesia. In India, it occurs in Odisha, West Bengal, and the Andaman and Nicobar Islands, with Odisha having the highest population in natural habitat. It is classified as Least Concern by the International Union for Conservation of Nature (IUCN).

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The Rusty-spotted Cat, one of the rarest and smallest wild cats in the world, was recently spotted in the Shergarh forest of Baran district, Rajasthan. It is the world’s smallest and lightest known cat species. The species is found in dry deciduous and semi-deciduous forests of northern and central India, the Western Ghats, Kachchh, Rajasthan, and peninsular India. It is also distributed in Nepal and Sri Lanka. India supports about 80 percent of the global population of this species. Its conservation status on the International Union for Conservation of Nature (IUCN) Red List is Near Threatened.

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Amid controversy over reducing its boundary, the Forest Minister recently visited Shettihalli Wildlife Sanctuary to assess the situation. The sanctuary is located in Shimoga (Shivamogga) district of Karnataka and covers about 395.6 square kilometres. The Tunga Anicut Dam lies within the sanctuary and supports otters and several water bird species. Mandagadde Bird Sanctuary is part of Shettihalli and is a major bird nesting site on an island in the Tunga River. The area has tropical evergreen, semi-evergreen, dry deciduous, and moist deciduous forests.

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Scientists from the Botanical Survey of India (BSI) discovered a new flowering plant species named Dicliptera pakhalica. The discovery was made in Pakhal Wildlife Sanctuary located in Warangal district of Telangana. The sanctuary is dominated by mixed deciduous forest vegetation. The area has rich plant diversity including bamboo and teak trees.

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Chhattisgarh Forest Department started six hornbill restaurants in Udanti Sitanadi Tiger Reserve to support the Malabar Pied Hornbill and promote natural forest growth. Malabar Pied Hornbill, scientifically called Anthracoceros coronatus, belongs to the hornbill family. It is a medium-sized bird with black and white feathers and a large casque on its beak. It lives in evergreen and moist deciduous forests, often near human settlements. It is found in Western Ghats, north-eastern Himalayan foothills, Satpuda Hills, Nepal and Sri Lanka. It is listed as Near Threatened by International Union for Conservation of Nature due to habitat loss.

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The south division of Palamu Tiger Reserve launched ‘Vanjeevi Didi’ in 17 villages to train educated women as reserve ambassadors. The objective of initiative is to prevent forest destruction and illegal wildlife activities by fostering local, women-led conservation efforts. It is located on the Chhotanagpur Plateau in Jharkhand. It is part of Betla National Park. It was among the first nine tiger reserves under Project Tiger.

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The National Green Tribunal directed the Uttar Pradesh government to restore Suav’s status from “drain” to “river” in official records. Suav is a major tributary of the Rapti River. Rapti is the most important left bank tributary of the Ghaghara River. Historically, Rapti was known as Iravati. It originates near Rukumkot in Nepal in the Mahabharat Range of the Lesser Himalayas.

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Scientists from the ICAR-Directorate of Floricultural Research have discovered a new species of blossom midge named Contarinia icardiflores. Contarinia icardiflores is a newly identified species belonging to the genus Contarinia, whose members are small insects recognized as serious pests of ornamental and food crops worldwide. The larvae of this species feed inside flower buds or blossoms, often leading to severe yield losses in agricultural and horticultural crops. The species has been named in honour of ICAR-DFR to acknowledge the institute’s significant contributions to floriculture research.

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Botanists discovered a new flowering plant species named Impatiens nagorum from Northeast India. It was found in Fakim Wildlife Sanctuary in Nagaland. The name “nagorum” honours the Naga tribes of the state. Impatiens, commonly called balsams or “touch-me-nots,” are known for bright flowers and seed pods that burst when touched. The Eastern Himalayas and Northeast India are global hotspots for this plant group. It grows in moist temperate broadleaf forests and is known only from its original discovery site. It has purple flowers, serrated leaves, slightly hairy lateral sepals, and a deep lower sepal forming a hooked spur.

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Over the past 200 years, the Kosi River has shifted its course westward by over 100 km. Kosi is a transboundary river flowing through China, Nepal, and India, and is a major tributary of the Ganges. It is called the “Sorrow of Bihar” due to frequent and severe flooding in Bihar. Formed by the confluence of Sun Kosi, Arun Kosi, and Tamur Kosi, originating in the Himalayan region of Nepal and Tibet. About 48 km north of the India-Nepal border, it gathers tributaries and flows south through the Siwalik Hills at Chatra Gorge.