Environment & Biodiversity Current Affairs MCQs

Notes:
Researchers discovered three new meadow katydid species in Jammu and Kashmir named Conocephalus usmanii, Conocephalus nagariensis, and Conocephalus ganderbali. Katydids are mainly nocturnal insects found on all continents except Antarctica. More than 8,000 species exist, belonging to the family Tettigoniidae. They are orthopterans, meaning straight-winged insects, related closely to crickets. Katydids are also called long-horned grasshoppers or bush crickets. They have long thread-like antennae and leaf-like bodies for camouflage. Most are herbivores with a lifespan of about one year.

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Kerala and Tamil Nadu have started restoring habitats and strengthening monitoring of the grey slender loris. The grey slender loris, scientifically called Loris lydekkerianus, is a primate belonging to the family Loridae and is a prosimian, an ancient group of primates. It is found in southern India, mainly Karnataka, Kerala, and Tamil Nadu, and also in Sri Lanka. It lives in rainforests, dry forests, scrublands, bamboo areas, swamps, and montane cloud forests. It is listed as Near Threatened by the International Union for Conservation of Nature.

Notes:
Parts of Dal Lake in Srinagar recently froze as the city recorded its coldest winter night, with temperatures well below freezing across the Kashmir Valley. Dal Lake is a mid-altitude urban freshwater lake located in Srinagar, Jammu and Kashmir. It is surrounded by the Pir Panjal mountains. The lake is vital for tourism and recreation and is called the “Jewel in the crown of Kashmir” or “Srinagar’s Jewel.”

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Research at 27 test lakes in northeastern Germany showed an increase in the abundance of charophytes. Charophytes are a type of green algae found in freshwater ecosystems. Fossils of charophytes date back to the Silurian Period, about 443 million years ago. This period marked the shift of plants from water to land, and charophytes are the closest living relatives of land plants. They grow in silt, mud, peat, or sand and often colonize newly cleared areas first.

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A recent survey across the Ganga River basin recorded 3,037 gharials in 13 rivers despite serious survival threats. Gharial is a freshwater crocodile belonging to the Crocodylia order and Crocodylidae family. Its scientific name is Gavialis gangeticus and it mainly feeds on fish. Earlier, its range extended across Bangladesh, Bhutan, India, Myanmar, Nepal, and Pakistan. Today, major populations survive in the Chambal, Girwa, and Rapti–Naryani rivers. In India, gharial reserves are located in Uttar Pradesh, Madhya Pradesh, and Rajasthan. As per the International Union for Conservation of Nature (IUCN) Red List, it is critically endangered.

Notes:
Researchers from Kerala and Tamil Nadu discovered two new rare ant fly species from India. The species are Metadon ghorpadei and Metadon reemeri of subfamily Microdontinae (Syrphidae). Their larvae live inside ant nests and feed on ant brood, a behaviour called myrmecophily. Metadon ghorpadei was found in Delhi’s northern ridge, a disturbed urban forest of the Aravalli range. Metadon reemeri was discovered in the Siruvani hills of the Western Ghats, Tamil Nadu. The discovery highlights the biodiversity value of urban forests and protected hotspots.

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Bhitarkanika National Park in Kendrapara district of Odisha has reported a marginal rise in migratory birds as per the latest forest department census. The park covers about 672 square kilometres of mangrove swamps formed by the Brahmani, Baitarani, and Dhamra river delta. It contains creeks, backwaters, estuaries, deltas, and mudflats and is surrounded by Bhitarkanika Wildlife Sanctuary. Gahirmatha Beach and Marine Sanctuary lie to the east near the Bay of Bengal. It is India’s second largest mangrove ecosystem after the Sundarbans and is a Ramsar site.

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A new flowering plant species named Strobilanthes riteshii has been formally recorded from Arunachal Pradesh. It belongs to the Acanthaceae family. The plant grows on open hill slopes, often near small waterfalls and streams within evergreen forest patches. Based on current knowledge, it is provisionally assessed as Data Deficient under the IUCN Red List, indicating that more field data is needed to understand its population status and threats.

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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.

Notes:
New York and New Jersey filed a lawsuit against the Trump administration for freezing $16 billion in federal funding for a new rail tunnel under the Hudson River. The Hudson River is located mostly in New York State, United States, with its final 34 km forming the boundary between New York and New Jersey. It was named after British explorer Henry Hudson, who sailed up the river in 1609. The river originates from several small postglacial lakes in the Adirondack Mountains near Mount Marcy (1,629 metres), the highest point in New York.