Environment & Biodiversity Current Affairs MCQs

Notes:
Recently, under the three-day “Parthenium Free Pobitora” campaign, 5.2 hectares of Pobitora Wildlife Sanctuary in Assam’s Morigaon district were cleared of the invasive weed Parthenium grass. Parthenium hysterophorus L., also called carrot weed, white top, or congress grass, is an annual plant of the Asteraceae family. This invasive weed is poisonous, aggressive, and harmful to humans and livestock, causing dermatitis, asthma, and respiratory issues. It reduces park aesthetics, blocks pathways, and invades agricultural, forest, and wasteland areas.

Notes:
A Kerala tourist miraculously survived an elephant attack in Karnataka’s Bandipur Tiger Reserve (BTR) after being pushed down and pinned under the tusker’s foot. Bandipur Tiger Reserve (BTR) is located in Mysore and Chamarajanagar districts of Karnataka at the tri-junction of Karnataka, Tamil Nadu, and Kerala. It is an “ecological confluence” of the Western and Eastern Ghats and was once a hunting ground of Mysore rulers. It forms part of the Nilgiri Biosphere Reserve, a UNESCO World Heritage Site.

Notes:
Recently, researchers discovered a new palm species named Phoenix roxburghii. It is named after William Roxburgh, known as the father of Indian Botany. The species grows between 12 to 16 metres tall. It is similar to Phoenix sylvestris, but has a taller solitary trunk, larger leaves and leaflets, musty-scented staminate flowers and bigger obovoid orange-yellow fruits. Its distribution is recorded along India’s eastern coast, in Bangladesh, Gujarat, Rajasthan and Pakistan. The discovery highlights the rich plant diversity of the region.

Notes:
For the first time, a consignment of 1.5 metric tonnes of Halman apricots has been sent to Saudi Arabia, Kuwait, and Qatar. Halman apricot (Prunus armeniaca L.) is a premium variety found in Ladakh. It was introduced over a century ago from China or Central Asia. It is abundantly grown in the Sham region of Ladakh including Dha-Hanu, Garkhon, Skurbuchan, Domkhar, Wanla, Khaltse, and Timosgang villages. It is renowned for rich flavor, versatility, and role in Ladakhi cuisine, medicine, and rituals. Nutritionally, it is rich in Vitamin C, Vitamin E, potassium, magnesium, iron, dietary fiber, and antioxidants.

Notes:
Heavy rain continues to batter Jammu, prompting India to forewarn Pakistan about potential flooding in the Tawi River as a humanitarian gesture. The warning comes despite the Indus Water Treaty (IWT) being in abeyance after the Pahalgam terror attack on 22 April 2025. Tawi River is a major left-bank tributary of Chenab River, originating from Kailash Kund glacier in Bhaderwah, Doda district, and flowing through Udhampur and Jammu districts into Sialkot, Pakistan. Tawi River divides Jammu city into old town on a hill and new town across the river, providing the main water source. The river is sacred, also called “Surya Putri” in ancient texts.

Notes:
Concerns were recently raised about unauthorised road construction and repair inside Srivilliputhur–Meghamalai Tiger Reserve (SMTR) in Theni district, Tamil Nadu. It was created in February 2021 by merging the Srivilliputhur Grizzled Squirrel Wildlife Sanctuary and Megamalai Wildlife Sanctuary. It spans Theni, Virudhunagar, and Madurai districts in Tamil Nadu. The reserve links Kerala’s Periyar Tiger Reserve with Tamil Nadu’s Kalakkad-Mundanthurai Tiger Reserve, ensuring wildlife corridor connectivity. It depends on Vaigai, Suruliyaru, and Shanmuganathi rivers for water resources.

Notes:
A new orchid, Gastrochilus pechei, was discovered in Vijoynagar, Arunachal Pradesh. Previously, this species was known to bloom only in Myanmar. Gastrochilus is a monopodial orchid genus with 77 species across Asia, having short axillary inflorescence, bright flowers, and two porate pollinia. Gastrochilus pechei flowers in September-October and grows in moist evergreen rainforest near riverbanks. Before this discovery, 22 Gastrochilus species were recorded in India, with 15 in Arunachal Pradesh. The discovery highlights floristic links between Myanmar and Arunachal Pradesh. Arunachal Pradesh is known as the Orchid State of India, hosting approximately 60% of India’s orchid varieties.

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An Assam-based foundation has developed India’s first portal for vulture conservation, called The Vulture Network. The portal was launched on September 2, 2025, by We Foundation India in collaboration with Gauhati University’s Department of Zoology. The portal aims to disseminate information in local languages, starting with Assamese, to educate grassroots communities about vultures’ ecological and economic importance. It is a cloud-based knowledge platform offering scientific information, awareness materials, and downloadable resources for campaigns

Notes:
The Giant African Snail (Lissachatina fulica), one of the world’s worst invasive species, has infested Chennai city and its outskirts. Experts warn the snail spreads rapidly during floods, posing risks to city residents. It is not only an agricultural pest but also a carrier of dangerous parasites. The snail transmits parasitic nematodes Angiostrongylus cantonensis and A. costaricensis. These cause eosinophilic meningoencephalitis (brain infection) and abdominal angiostrongyliasis in humans. Infections spread through ingestion of contaminated snails or their residues. Researchers highlighted that Chennai faces a major public health threat due to this invasive species.

Notes:
A recent wildlife survey in Arunachal Pradesh recorded first-ever photographic evidence of the elusive Pallas’s cat. It was first described in 1776 by Peter Simon Pallas, based on specimens near Lake Baikal, Russia. It is mainly found in Central Asia, with its range extending to western Iran, Mongolia, China, Russia, Kazakhstan, and Kyrgyzstan. It inhabits rocky montane grasslands and shrublands with snow cover below 15–20 cm. It preys mainly on lagomorphs (hares, pikas) and rodents. This finding is a major addition to Arunachal Pradesh’s wildlife records.