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Subject: Biodiversity

1. Ecology & Ecosystems
2. Indian Biodiversity

  • Species in news: Euphlyctis Kerala

    A new species of skittering frog has been identified from the surroundings of the Thattekkad bird sanctuary.

    Euphlyctis Kerala

    • The new species is named Euphlyctis Kerala in honor of the remarkable biodiversity of the State, which is also known for many endemic species of frogs.
    • The new species is known to be found in the freshwater bodies of the foothills of the Western Ghats, south of the Palakkad Gap.
    • Although multiple skittering frogs have been described from India for almost two centuries (since 1799), the taxonomic mess within this group created a lot of confusion due to “morphological character crypticity”.
    • Members of the genus Euphlyctis (skittering frogs) have their distribution range from Arabian Peninsula, Pakistan, India, Nepal, Sri Lanka, Myanmar, and Thailand.
    • As of now, Kerala is known to have 180 species of frogs and there could be many more new species awaiting formal descriptions.

  • Species in news: Bharitalasuchus Tapani

    In the mid 20th century, researchers from the Indian Statistical Institute, Kolkata, carried out extensive studies on rocks of the Yerrapalli Formation in what is now Telangana, uncovering several fossils of Bharitalasuchus Tapani.

    Bharitalasuchus Tapani

    • This reptile belongs to a genus and species previously unknown to science. It is named Bharitalasuchus tapani considering Telugu etymology.
    • In the Telugu language, Bhari means huge, Tala means head, and Suchus is the name of the Egyptian crocodile-headed deity.
    • The species is named after paleontologist Tapan Roy Chowdhury in honour of his contribution to Indian vertebrate paleontology and especially his extensive work on the Yerrapalli Formation tetrapod fauna.

    Details of the reptile

    • The reptile belonged to a family of extinct reptiles named Erythrosuchidae.
    • A precise identification had not been possible earlier because the family was not known from other examples in India.
    • It was neglected because the fossil specimen was not as complete as those of other erythrosuchids from other countries.
    • The team notes that tapani were robust animals with big heads and large teeth, and these probably predated other smaller reptiles.
    • They were approximately the size of an adult male lion and might have been the largest predators in their ecosystems.

  • Species in news: Pyrostria Laljii

    A 15-meter-tall tree that belongs to the genus of the coffee family has recently been discovered from the Andaman Islands by a team of researchers from India and the Philippines.

    Observe this PYQ from CSP 2016:

    Q.Recently, our scientists have discovered a new and distinct species of banana plant which attains a height of about 11 metres and has orange-coloured fruit pulp. In which part of India has it been discovered?

    (a) Andaman Islands

    (b) Anamalai Forests

    (c) Maikala Hills

    (d) Tropical rain forests of northeast

    Pyrostria Laljii

    • The new species, Pyrostria laljii, is also the first record of the genus Pyrostria in India.
    • Plants belonging to the genus Pyrostria are usually found in Madagascar but the recently discovered species is new to science.
    • The tree is distinguished by a long stem with a whitish coating on the trunk, and oblong-obovate leaves with a cuneate base, and was first reported from South Andaman’s Wandoor forest.
    • Pyrostria laljii has been assessed as ‘Critically Endangered’ based on the International Union for Conservation of Nature’s (IUCN) Red List criteria.

  • Why people are Protesting in Lakshadweep

    The article highlights the issues with development model sought to be pursued in Lakshadweep.

    Background of Island Development Authority’

    • A specially constituted Island Development Authority (IDA) for the island territories of India, chaired by no less than the former Prime Minister, Rajiv Gandhi.
    • IDA had in 1988, approved a framework for the development of India’s island territories.
    • IDA sought an environmentally sound strategy for both island groups hinges on better exploitation of marine resources coupled with much greater care in the use of land resources.
    • Deliberations of the IDA wanted that Lakshadweep, with its land ownership constitutionally protected, be opened to international tourism.

    Issues with following Maldives model for development of Lakshadweep

    •  Recently, the Administrator, Lakshadweep, introduced a slew of draft legislation that will have a wide-ranging impact on the islands.
    • One such legislation is the Lakshadweep Development Authority Regulation 2021 with intentions to develop Lakshadweep like neighbouring Maldives, “a renowned international tourist destination”.
    • Rejecting the Maldives model, the plan for Lakshadweep required that the industry had to be people-centric and enrich the fragile coral ecology.
    • Today, long lines and refrigeration have aided the expansion of the fishing sector but income disparities have grown.
    • Indiscriminate trawling endangers the coral, as experienced in the Maldives and now banned there.
    • The Government recognises the need to develop policies for enhancing employment opportunities, environment-friendly management of fisheries, sanitation, waste disposal and widening access to drinking water, with the youth, having acquired a modern education, preferring salaried jobs over pursuing traditional occupations.

    Conclusion

    What Lakshadweep needs is a clear policy must include conservation and natural resource management arrived at after wide consultation, eminently possible within the existing infrastructure of the Union Territory, and also taking into account climatic compulsions.

  • Deep Sea Faunal Diversity in India

    India is home to 4,371 species of deep-sea fauna, including 1,032 species under the kingdom Protista and 3,339 species under the kingdom Animalia, a recent publication by the Zoological Survey of India (ZSI) has revealed.

    Highlights of the Survey

    • India is surrounded by the Arabian Sea, the Bay of Bengal, the Andaman Sea, and the Laccadive Sea (Lakshadweep Sea).
    • Of the 4,371 species, a maximum of 2,766 species has been reported from deep-sea areas of the Arabian Sea, followed by 1,964 species from the Bay of Bengal, 1,396 species from the Andaman Sea, and only 253 species from the Laccadive Sea.

    RIMS ship investigator

    • India is one of the countries that made a pioneering exploration in the deep Indian Ocean region in 1874 by commissioning a RIMS (Royal Indian Marine Survey) ship investigator.
    • This conducted enormous studies in seas around India and continued to work till 1926.

    Components of the exploration

    • The deep-sea ecosystem was the most unexplored ecosystem across the world. It included hydrothermal vents, submarine canyons, deep-sea trenches, seamounts, cold seeps, and mud volcanoes.
    • This publication, the first of its kind, provides baseline information on all groups of fauna and biological organisms in the Indian deep seas.
    • Not only will this support our knowledge on conserving and managing deep-sea faunal resources, but it will also pave way for their sustainable utilization.

    Key findings

    (1) Mammals

    • There are 31 species of sea mammals that are found in the deep-sea ecosystem of Indian waters, including the Critically Endangered Irrawaddy Dolphin.
    • Two other species, the Indo-Pacific Finless Porpoise and the Sperm Whale are recorded as ‘Vulnerable’ in the IUCN classification.
    • The list of mammals includes Cuvier’s Beaked Whale and Short-beaked Common Dolphin, which dive as deep as 8,000 meters below the Earth’s surface.

    (2) Marine turtles

    • Out of the seven species of marine turtles found across the world, five species have been recorded from Indian waters.
    • India is known as one of the best and largest breeding grounds for sea turtles, especially for Olive Ridley and Leatherback Turtles, across the world.

  • Environment Appraisal Committee allows Great Nicobar plan to advance

    About the Great Nicobar plan

    • The Environment Appraisal Committee (EAC) – Infrastructure I of the Ministry of Environment, Forest and Climate Change (MoEFCC) has flagged serious concerns about NITI Aayog’s ambitious project for Great Nicobar Island.
    • The EAC was responding to ‘pre-feasibility’ report, ‘Holistic Development of Great Nicobar Island at Andaman and Nicobar Islands’.
    • The report is prepared for the NITI Aayog by the Gurugram-based consulting agency.
    • The proposal includes an international container transshipment terminal, a greenfield international airport, a power plant and a township complex spread over 166 sq. km. and is estimated to cost â‚č75,000 crore.
    • The committee has, however, removed the first hurdle faced by the project.
    • It has recommended it “for grant of terms of reference (TOR)” for Environmental Impact Assessment (EIA) studies, which in the first instance will include baseline studies over three months.

    What the EAC said

    • The committee noted that the site selection for the port had been done mainly on technical and financial criteria, ignoring the environmental aspects.
    • It has now asked for an independent study/ evaluation for the suitability of the proposed port site with specific focus on Leatherback Turtle, Nicobar Magapode and Dugong.
    • It highlighted the need for an independent assessment of terrestrial and marine biodiversity, a study on the impact of dredging, reclamation and port operations, including oil spills.
    • It has also highlighted the need for studies of alternative sites for the port with a focus on environmental and ecological impact,  analysis of risk-handling capabilities, a seismic and tsunami hazard map, a disaster management plan, an assessment of the cumulative impact, and a hydro-geological study to assess impact on round and surface water regimes.
    • The committee has also asked for details of the corporate environment policy of the implementing agency — whether the company has an environment policy, a prescribed standard operating procedure to deal with environmental and forest violations, and a compliance management system.

  • Rare white-bellied heron spotted in Arunachal Pradesh

    About the bird

    • The white-bellied heron is categorised as ‘critically endangered’ in International Union for Conservation of Nature (IUCN) Red Data Book.
    • It is listed in Schedule IV in the Wildlife Protection Act, 1972.
    • It is one of the rarest birds in the world and is found only in Bhutan, Myanmar and the Namdapha Tiger Reserve in Arunachal Pradesh.
    • It had also been recorded in the adjacent Kamlang Tiger Reserve in Lohit district in camera trap images.

    Significance of recent sighting

    • The recent sighting at a height of 1,200 metres above sea level is a first at such a higher elevation in India.
    • The presence of nesting sites within this area is a positive sign for the future habitat as the breeding season of the white-bellied heron starts in February and lasts till June.
    • It is great news that the critically endangered bird is establishing new habitat beyond its traditional range.

  • No mass nesting of Olive Ridley turtles at Rushikulya in Odisha this year

    No mass nesting this year

    • The annual spectacle of the mass nesting of millions of Olive Ridley sea turtles near the Rushikulya river mouth in Odisha is likely to be missed this year, as the time for it is almost over.
    • It’s been around one month since the mass nesting of last year.
    • If they do skip the beach, this won’t be the first time.
    • In 2002, 2007, 2016 and 2019, the turtles had not shown up at Rushikulya.
    • The Rushikulya river mouth is considered the second-biggest rookery in India after Gahirmatha.
    • Mass nesting in the Gahirmatha marine sanctuary occurred from March 9-23, 2021 and over 349,000 eggs were laid during this period.

    What could explain the miss in mass nesting

    • It is a natural phenomenon. During some years, they did not turn up for mass nesting even though a huge number had congregated in the sea.
    • Beach erosion might be one of the causes for the turtles staying away this year.

  • MoEFCC clears rail track in Western Ghats despite red flags

    The Ministry of Environment, Forest and Climate Change has cleared a rail project in the Western Ghats spread across Goa and Karnataka, which can endanger its wildlife.

    About the project:

    • The project is the doubling the track of Hospet-Hubballi-Londa-Vasco Da Gama railway line by the Rail Vikas Nigam Ltd (RVNL).
    • It involves doubling of the 353-kilometre-long railway track in Karnataka and Goa passing through the Western Ghats.

    Western Ghats:

    • The Western Ghats mountain range runs along the western side of India.
    • The Ghats are older than the Himalayas.
      • The range is known as Sahyadri in Maharashtra and Karnataka.
    • It runs, about 1600 km, North to South, along the western edge of the Deccan Plateau.
    • It originates near the border of Gujarat and Maharashtra, and runs through the states of Maharashtra, Goa, Karnataka, Tamil Nadu and Kerala, finally ending at Kanyakumari.
    • These hills form the catchment area for complex riverine drainage systems that drain almost 40% of India.
    • Height:
      • The average elevation is about 1,200 m.
      • Anaimudi (2695 m), is the highest peak of the Western Ghats, situated in Eravikulam National Park, Kerala.
    • Rocks found:
      • Basalt is the predominant rock found in the hills reaching a thickness of 3 km.
      • Other rocks: Granite gneiss, metamorphic gneisses with detached occurrences of crystalline limestone, iron ore, dolerites and anorthosites.
    • Major gaps in the range:
      • Goa Gap between the Maharashtra and Karnataka sections.
      • Palghat Gap on the Tamil Nadu and Kerala border between Nilgiri Hills and Anaimalai Hills.
    • Recognitions:
      • It is one of the eight hottest hotspots of biological diversity in the world.
      • In 2012, thirty-nine places in the Western Ghats region have been declared as World Heritage Sites by the UNESCO.
    • Flora and Fauna:
      • There are at least 139 mammal species.
      • It includes the critically endangered Malabar large-spotted civet and the endangered lion-tailed macaque.

  • Proposal to amend animal cruelty Act: strict measures suggested

    India’s antiquated animal cruelty law may finally get some teeth after around sixty years after its enactment.

    What are the amendments?

    • The Centre’s Animal Husbandry department has suggested adding to the 1960 legislation a stringent new section that addresses the killing of animals and “gruesome cruelty” towards them.
    • This section calls for imprisonment of up to five years and steep penalties that may go up to Rs 75,000.
    • The department has also proposed amending the Prevention of Cruelty to Animals Act to hike the penalty for first-time offenders from the paltry “minimum of Rs 10 to maximum of Rs 50” to “not less than Rs 750 extended up to Rs 3,750 per animal”.
    • The Union Ministry of Fisheries, Animal Husbandry and Dairying set the ball rolling for the amendment of the legislation with Joint Commissioner (AH) Dr S K Dutta inviting suggestions from stakeholders at a webinar.

    Its proposed new section, meanwhile, has the following provisions—

    • 11 (A): Gruesome cruelty or life-threatening cruelty against animals, for which the penalty is Rs 50,000 per animal or the cost of the animal as determined by a jurisdictional veterinarian. This carries imprisonment of one year which may extend to three years or both.
    • 11 (B): Killing of an animal for which the penalty is Rs 75,000 per animal or three times the cost of the animal as determined by the jurisdictional veterinarian, whichever is more, with imprisonment of three years which may extend to five years or both.
    • 11 (C): Exceptions (exemption to section 11 (B) killing of an animal): i) accident ii) in defence of self or property (iii) by an act of god or war (iv) any other unforeseen circumstance outside the control of any person in general.

    Steps taken for welfare of animals in India:

    • The Prevention of Cruelty to Animals Act 1960 recognises that animals can suffer physically and mentally, and is applicable to ‘all living creatures’.
    • The Constitution also enshrines the principle of ahimsa and mandates to all citizens of India to ‘have compassion for living creatures’.
    • The Animal Welfare Board of India (AWBI) is the central body responsible for animal welfare in the country.
    • The National Institute for Animal Welfare created in 1999, has the broad mandate to improve animal welfare through research, education and public outreach.