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Type: India Mapping

  • Climate Change Impact on India and World – International Reports, Key Observations, etc.

    Places in news: Iriomote Island

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Iriomote Island , Coral Bleaching

    Mains level: NA

    Central Idea

    • A notable example of colony resilience during a bleaching event is found near Japan’s Iriomote Island, where a colony bleached in 2016 exhibited signs of recovery by 2020.

    About Iriomote Island

    • Iriomote Island is a picturesque island located in the Yaeyama Islands, part of Okinawa Prefecture in Japan.
    • It is the largest and southernmost inhabited island in the Yaeyama archipelago.
    • With its lush jungles, mangrove forests, and diverse wildlife, Iriomote Island is often referred to as the “Galapagos of the East.”
    • It is home to the Iriomote Yamaneko, or Iriomote cat, which is a critically endangered species of wildcat found only on this island.
    • The dense mangrove forests along the island’s rivers and estuaries serve as an important habitat for numerous species of birds, fish, and other wildlife.
    • To preserve the island’s unique ecosystem and cultural heritage, Iriomote Island is part of the Iriomote-Ishigaki National Park.

    Back2Basics: Coral Reefs and Coral Bleaching

    coral

    • Corals are marine invertebrates that form colonies of polyps, which multiply and create reef structures.
    • Hard corals extract calcium carbonate to build hard exoskeletons, while soft corals add their skeletons to create coral reefs.
    • Corals have a mutually beneficial relationship with single-celled algae called zooxanthellae.
    • The zooxanthellae provide food and nutrients through photosynthesis, while corals provide a home and essential nutrients.
    • The zooxanthellae give corals their vibrant colors.

    Understanding Coral Bleaching

    • Causes of Bleaching: Environmental stressors like temperature changes, pollution, and high ocean acidity lead to coral bleaching.
    • Bleaching Process: Stressed corals expel the zooxanthellae, revealing their pale exoskeletons and disrupting the symbiotic relationship.
    • Impacts of Bleaching: Severe and prolonged bleaching events can result in coral death and the loss of biodiversity.

    Climate Change’s Impact on Coral Reefs

    • Warming Seas: Rising carbon emissions and greenhouse gases have caused increased global warming, resulting in warmer ocean temperatures.
    • Mass Bleaching: The frequency and intensity of mass bleaching events have risen in recent decades due to climate change.
    • Projections: Even with greenhouse gas reduction efforts, temperatures are expected to rise by 1.5°C to 2°C by the end of the century.

    Significance of Coral Reefs

    • Biodiversity Hotspots: Coral reefs support over 25% of marine biodiversity despite covering only 1% of the seafloor.
    • Economic Value: Reefs contribute $2.7 trillion annually through trade, tourism, and employment opportunities.
    • Environmental Protection: Coral reefs provide habitat and serve as a natural defense against storm waves.
    • Regeneration Potential: Dead reefs can recover if sufficient fish species graze on the weeds that settle on dead corals, although the process takes several years.
  • Global Geological And Climatic Events

    Places in news: Ubinas Volcano

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Ubinas Volcano

    Mains level: NA

    Central Idea

    • Peru declared a state of emergency for sixty days in areas around the Ubinas volcano.
    • The volcano has been spewing ash and gas and is probably set to erupt.

    Ubinas Volcano

    • Ubinas is an active stratovolcano located in the Moquegua Region of southern Peru, approximately 60 kilometers east of the city of Arequipa.
    • It is part of the Central Volcanic Zone of the Andes and stands at an elevation of 5,672 meters above sea level.

    Geological Characteristics

    • Stratovolcano Formation: Ubinas is characterized by its stratovolcano structure, comprising layers of hardened lava, ash, and other volcanic materials.
    • Caldera and Crater: The volcano’s summit contains a 1.4-kilometer-wide and 150-meter-deep caldera, within which lies a smaller crater. This distinct feature adds to the volcano’s geological significance.
    • Ubinas I and Ubinas II: The volcano exhibits an upwards-steepening cone shape, with a notable notch on its southern side. The lower part is referred to as Ubinas I, while the steeper upper section is known as Ubinas II, representing different stages in the volcano’s geological history.

    Volcanic Activity

    • Active Volcanic History: Ubinas is recognized as the most active volcano in Peru, displaying a history of small to moderate explosive eruptions and persistent degassing.
    • Notable Eruptions: The volcano has experienced notable eruptions throughout history, including the 2006–2007 event that resulted in eruption columns, ash fall, health concerns, and evacuations in the region.
    • Recent Activity: From 2013 to 2017, Ubinas exhibited lava flow within the crater, accompanied by ash falls, leading to further evacuations in nearby towns.

    Eruption and Impact

    • Ash and Gas Emissions: The Ubinas volcano has been actively spewing ash and gas.
    • Smoke Cloud and Affected Areas: The smoke cloud generated by the eruption has reached towns located up to 10 kilometers away from the volcano. This has raised concerns for the well-being of approximately 2,000 people residing in the affected areas.
    • The “Ring of Fire”: The region where Ubinas is situated falls within the “Ring of Fire,” an area around the Pacific Ocean known for its high volcanic and seismic activity.

     

  • Wildlife Conservation Efforts

    Places in news: Debrigarh Wildlife Sanctuary

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Debrigarh Wildlife Sanctuary

    Mains level: Not Much

    debrigarh

    Central Idea

    • Debrigarh, a wildlife sanctuary in Odisha’s Bargarh district, has achieved a significant milestone by becoming completely free of any human settlement.

    Debrigarh Wildlife Sanctuary

    • Geographic Position: The Debrigarh Wildlife Sanctuary is located in the Bargarh district of Odisha, near the city of Sambalpur and adjacent to the Hirakud Dam.
    • Total Area: The sanctuary spans a total area of 346.91 km2, providing ample space for the preservation of wildlife and their natural habitats.
    • Flora and Fauna: The sanctuary boasts a diverse range of flora and fauna, including over 40 species of mammals, 200 species of birds, 40 species of reptiles, 12 species of amphibians, 42 species of fishes, 39 species of odonates, 85 species of butterflies, and 38 species of spiders.
    • Aquatic Biodiversity: The sanctuary’s unique feature is its support for both terrestrial and aquatic biodiversity. The presence of the Hirakud reservoir contributes to the sanctuary’s appeal, attracting numerous migratory waterfowl during winter.
    • Medicinal flora: The sanctuary is home to over 250 plant species, many of which hold significant ethnobotanical and medicinal value.

    Why in news?

    • Peaceful rehabilitation: Debrigarh stands out as one of the few wildlife sanctuaries in Odisha where human settlements have been completely removed.
    • Voluntary Relocation: The relocation of 400 families was carried out through a series of consultations, without the use of force.
    • Exceptional Cases: Debrigarh joins Nalabana Bird Sanctuary in Chilika Lake as an exceptional example of wildlife sanctuaries without permanent human settlements.

    Positive Impact on Wildlife Conservation

    • Reduction in Conflict: The relocation has immediately resulted in a tangible drop in man-wildlife conflicts within the 353.81 sq. km Debrigarh wildlife sanctuary.
    • Tiger Incursion Example: The sanctuary’s inviolability was recently demonstrated when a tiger from neighboring Chhattisgarh crossed over into Debrigarh.
    • Preservation of Habitat: Removing human settlements from critical wildlife sanctuaries ensures the preservation and protection of biodiversity.

    Benefits to Villagers and Sanctuary

    • Improved Living Conditions: The relocation was necessary as the villagers lacked access to basic facilities such as electricity, healthcare, and education.
    • Compensation: Each eligible family received ₹15 lahks as compensation for their voluntary relocation, ensuring their well-being in new settlements.
    • Win-Win Situation: The relocation serves the interests of both the villagers, who gain access to better facilities, and the sanctuary, which is now free from human settlements.
  • Historical and Archaeological Findings in News

    Places in news: Brahmani Natural Arch

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Brahmani Natural Arch

    Mains level: Not Much

    brahmani arch

    Central Idea

    • The Geological Survey of India (GSI) plans to declare the ‘Brahmani Natural Arch’ in Kanika range of Sundargarh forest division of Odisha as a Geo Heritage Site.
    • This natural arch is believed to date back to the Jurassic period and would be the largest natural arch in India with the Geo Heritage tag.

    Brahmani Natural Arch

    • The oval-shaped arch has a base length of 30 meters and a height of 12 meters.
    • The alcove of the arch has a maximum height of 7 meters and a width of 15 meters.
    • India currently has two other natural arches, located at Tirumala hills in Tirupati and Andaman and Nicobar, but both are smaller than the one in Sundargarh.

    Its formation

    • The natural arch is composed of ferruginous sandstone from the Upper Kamthi formation.
    • It dates back to the lower to middle Jurassic age, approximately 184 to 160 million years old.
    • Research on the geological significance of the site began in 2017 after its discovery during coal exploration in the district.

    Awareness and Preservation Efforts

    • The GSI state unit and Sundargarh forest division conducted an awareness drive in the district to promote the protection of the natural arch.
    • Steps are being taken to promote the proposed geo-heritage site as a cultural pride and potentially name it ‘Brahmani natural arch.’
    • The site could be promoted and preserved as an eco-tourism destination.

    Back2Basics:

    Geological Heritage Sites in India
    Andhra Pradesh Mangampeta Volcanogenic bedded Barytes (Cuddapah Dist.), Eparchaean Unconformity (Chittor Dist.), Natural Geological Arch in Tirumala Hills (Chittor Dist.), Erra Matti Dibbalu located between Vishakhapatnam and Bhimunipatnam.
    Maharashtra Lonar Lake (Buldana Dist.)
    Kerala Laterite near Angadipuram PWD rest house premises (Malapuram Dist.), Varkala Cliff Section (Thiruvanatapuram Dist.)
    Chattisgarh Lower Permian Marine bed at Manendragarh (Surguja Dist.)
    Tamil Nadu Fossil wood near Tiruvakkarai (South Arcot Dist.), National fossil wood park in Sattanur (Tiruchirapalli Dist.), Charnockite in St. Thomas Mount (Madras), Badlands of Karai Formation with Cretaceous fossils along Karai – Kulakkalnattam Section (Perambalur District)
    Karnataka Columnar Lava in St. Mary Island (Udupi Dist.), Pillow lavas near Mardihalli (Chitradurga Dist.), Peninsular Gneiss in Lalbagh (Bangalore), Pyroclastics & Pillow lavas in Kolar Gold fields (Kolar Dist.)
    Gujarat Sedimentary Structures – Eddy Markings in Kadan Dam (Panch Mahals Dist.)
    Himachal Pradesh Siwalik Fossil Park (Saketi, Sirmur dt.)
    Rajasthan Sendra Granite (Pali Dist.), Barr Conglomerate (Pali Dist.), Stromatolite Fossil Park near Jharmarkotra Rock Phosphate deposit (Udaipur Dist.), Gossan in Rajpura-Dariba Mineralised belt (Udaipur Dist.), Akal Fossil Wood Park (Jaisalmer Dist.)
    Odisha Pillow Lava in iron ore belt at Nomira (Keonjhar dist.)
    Jharkhand Plant Fossil bearing Inter-trappean beds of Rajmahal Formation around Mandro (Sahibganj dist.)
    Nagaland Nagahill Ophiolite Site near Pungro
    Sikkim Stromatolite bearing Dolomite/Limestone of Buxa Formation at Mamley, near Namchi (South district), Stromatolite bearing Dolomite / Limestone of Buxa Formation, Sikkim

     

     

    https://www.newindianexpress.com/cities/bhubaneswar/2023/jun/11/gsi-proposes-geo-heritage-tag-for-jurassic-age-natural-arch-in-odisha-2583901.html

  • Global Geological And Climatic Events

    Cyclone Biparjoy and its Naming

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Cyclone Biparjoy

    Mains level: Naming of cyclone

    Cyclone Biparjoy
    PC: windy.com

    Central Idea: A cyclonic storm, named Biparjoy, has developed in the Arabian Sea.

    Cyclone Biparjoy

    • It was stationed about 850 km west of Goa and 900 km southwest of Mumbai.
    • The cyclone is predicted to gain in strength over the next three days and develop into a very severe cyclonic storm by June 13.
    • It would result in squally weather with wind speeds reaching 35-45 kmph along the coastline of Karnataka, Goa, and Maharashtra
    • The IMD has not yet predicted any major impact on countries adjoining the Arabian Sea, including India, Oman, Iran, and Pakistan.

    How it was named?

    • Origin of Cyclone Biparjoy’s Name: ‘Biparjoy’ was suggested by Bangladesh and the word means ‘disaster’ or ‘calamity’ in Bengali. The next cyclone after Biparjoy will be named ‘Tej’ based on India’s suggestion.
    • Rotational Basis for Naming: The naming of cyclones is done by countries on a rotational basis, following certain existing guidelines.
    • Responsibilities of RSMCs and TCWCs: Worldwide, there are six regional specialized meteorological centers (RSMCs) and five regional Tropical Cyclone Warning Centers (TCWCs) mandated for issuing advisories and naming of tropical cyclones.
    • IMD’s Role: IMD is one of the six RSMCs providing tropical cyclone and storm surge advisories to 13 member countries under the WMO/Economic and Social Commission for Asia-Pacific (ESCAP) Panel.
    • Naming Authority of IMD: RSMC, New Delhi, is also mandated to name the tropical cyclones developing over the north Indian Ocean, including the Bay of Bengal and the Arabian Sea.
    • Guidelines for Naming: Some rules are to be followed while naming cyclones, such as being neutral to politics, religious beliefs, cultures, and gender, avoiding offensive or cruel names, and keeping the name short and easy to pronounce.
    • Next Cyclone Name: After Bangladesh, the next cyclone will be named ‘Tej’ based on India’s suggestion.

    Cyclones in the Arabian Sea: A quick recap

    • Frequency of Cyclones: It is not rare for cyclones to develop in the Arabian Sea. There are fewer cyclones compared to the Bay of Bengal, but it is not uncommon.
    • Favorable Months: June is one of the favorable months for the formation of cyclones in the Arabian Sea.
    • Factors Influencing Cyclone Formation: Cyclones form due to low-pressure systems over warm waters. The Bay of Bengal is slightly warmer, but the Arabian Sea is also getting warmer due to climate change, leading to an increase in cyclones.
    • Coriolis Effect and Weather Systems: In a depression or low-pressure situation, the air blows in an anticlockwise direction in the northern hemisphere, influenced by the Coriolis Effect.

    Role of Climate Change

    • Historical data indicates that the frequency of extremely severe cyclonic storms has increased over the Arabian Sea since 1990, while it has remained the same over the Bay of Bengal.
    • A 2021 study highlighted the increasing intensity, frequency, and duration of cyclonic storms in the Arabian Sea.
    • The warming is indicated by the nearly tripled accumulated cyclone energy, reflecting the extent of warming in recent years.

    Back2Basics:

    Tropical Cyclones
    Definition Intense circular storm over warm oceans with low pressure, high winds, and heavy rain.
    Formation Conditions Warm sea surface temperatures, anticlockwise rotation of low-level air, favorable atmospheric conditions.
    Conducive Periods April-May and October-December.
    Movement and Moisture Cyclones move northwest, gather moist air, and intensify.
    Requirements for Cyclogenesis Warm sea temperatures, atmospheric instability, high humidity, Coriolis force, low-level disturbance, low vertical wind shear.
    Sea temperatures Temperature of at least 28°C.
    Atmospheric instability Allows vertical air movement.
    Role of Coriolis Force Required for low-pressure center formation.
    Low vertical wind shear Maintains cyclone structure.

     

  • OBOR Initiative

    Chinese firm to build Solomon Islands Port Project

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Solomon Islands

    Mains level: Read the attached story

    solomon

    A Chinese state-backed company has won a contract to develop Honiara, a key port in the Solomon Islands. This is a major victory for China, which is seeking to gain a strategic foothold in the South Pacific.

    Why discuss this?

    • The Solomon Islands have become a focal point in the diplomatic tussle between China and the US, following the signing of a secret security pact between the Solomons and Beijing in 2022.
    • This has raised concerns that China may be establishing a permanent naval base in the country.

    About Solomon Islands

    • The Solomon Islands is a sovereign country consisting of six major islands and over 900 smaller islands in Oceania, to the east of Papua New Guinea and northwest of Vanuatu.
    • Its capital, Honiara, is located on the largest island, Guadalcanal.
    • It is part of the ethnically Melanesian group of islands in the Pacific and lies between Papua New Guinea and Vanuatu.
    • The country takes its name from the Solomon Islands archipelago, which is a collection of Melanesian islands that also includes the North Solomon Islands (a part of Papua New Guinea).
    • It excludes outlying islands, such as the Santa Cruz Islands and Rennell and Bellona.

    Quick recap of its past

    • The islands, which were initially controlled by the British Empire during the colonial era, went through the hands of Germany and Japan.
    • It then went back to the UK after the Americans took over the islands from the Japanese during World War II.
    • The islands became independent in 1978 to become a constitutional monarchy under the British Crown, with a parliamentary system of government.
    • Nevertheless, its inability to manage domestic ethnic conflicts led to close security relations with Australia, which is the traditional first responder to any crisis in the South Pacific.

    How did China enter the picture?

    • Earlier this year, the Solomon Islands established a security agreement with China, saying it needed Beijing’s assistance with its domestic security situation.
    • But the announcement had rattled the west, esp. the US, Australia and others in the Indo-Pacific region.
    • The concerns were that the agreement could potentially lead to a Chinese military base on the island nation and a gain in power-projection capabilities.
    • At that time, following intense scrutiny, the Solomon Islands had denied that the agreement would allow China to establish a naval base.

    What is the Solomon Islands’ stance?

    • The government has asked all partner countries with plans to conduct naval visits or patrols to put them on hold until a revised national mechanism is in place.
    • The revised national mechanism applied to all foreign vessels seeking access to the country’s ports.
    • The nation wanted to build up its own naval capacity.
    • It has some unfortunate experiences of foreign naval vessels entering its waters without any diplomatic clearance.

    What is behind China’s growing influence in the region?

    • There is no dispute that China has been rapidly increasing its presence and influence in the region for over three decades, particularly in the South Pacific.
    • Certainly Beijing views the Pacific Island region as an important component of its Belt and Road Initiative (BRI).
    • Specifically, it sees the region as a critical air freight hub in its so-called Air Silk Road, which connects Asia with Central and South America.

    Concerns of the West

    • The port project could open the door to a Chinese naval base, which would significantly extend China’s military reach in the South Pacific.”
    • It is likely that this security agreement between China and the Solomon Islands has been driven by, what the CFR calls, Beijing’s “sense of vulnerability” in the region.

    What is the rationale for the Solomon Islands’ increasing proximity to China?

    • The Solomon Islands had cultivated strong ties with Taiwan, which ended with the emergence of the current government in Honiara.
    • In 2019, the regime change switched Taiwan for China.
    • This was supposedly after Beijing offered half a billion US dollars in financial aid, roughly five times what Taiwan spent on the islands in the past two decades.
    • It has been alleged by the pro-Taiwan Opposition that the incumbent government has been bribed by China.

    Why is China interested in the Solomon Islands?

    • Isolating Taiwan: The Solomon Islands was one among the six Pacific island states which had official bilateral relations with Taiwan.
    • Supporter in UN: The small Pacific island states act as potential vote banks for mobilising support for the great powers in international fora like the United Nations.
    • Larger EEZ: These states have disproportionately large maritime Exclusive Economic Zones when compared to their small sizes.
    • Natural resources: Solomon Islands, in particular, have significant reserves of timber and mineral resources, along with fisheries.
    • Countering US: But more importantly, they are strategically located for China to insert itself between America’s military bases in the Pacific islands and Australia.

    What does this mean for the established geopolitical configuration in the region?

    • Diminishing western influence: The Pacific islands, in the post-World War II scenario, were exclusively under the spheres of influence of the Western powers, in particular, the US, UK, France and Australia and New Zealand.
    • Inserting into western hegemony: All of them have territorial possessions in the region, with the three nuclear powers among them having used the region as a nuclear weapons testing ground.
    • Shifting of dependencies: The smaller island nations of the region are heavily dependent on them, especially Australia as it is a resident power.

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  • Wildlife Conservation Efforts

    Silent Valley Bird Species goes up to 175

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Silent Valley National Park

    Mains level: NA

    silent valley

    A bird survey conducted at the Silent Valley National Park identified 141 species, of which 17 were new. So far, 175 species of birds have been spotted in Silent Valley.

    Silent Valley National Park

    • It is located in the border of Mannarkkad Taluk of Palakkad district, Nilambur Taluk of Malappuram district, Kerala, and Nilgiris district of Tamil Nadu.
    • This national park has some rare species of flora and fauna. This area was explored in 1847 by the botanist Robert Wight.
    • It is located in the rich biodiversity of Nilgiri Biosphere Reserve.
    • Mukurthi peak, the fifth-highest peak in South India, and Anginda peak are also located in its vicinity.
    • Bhavani River, a tributary of Kaveri River, and Kunthipuzha River, a tributary of Bharathappuzha river, originate in the vicinity of Silent Valley.
    • The Kadalundi River has also its origin in Silent Valley.

    New species spotted

    • Brown wood owl, Banded bay cuckoo, Malabar woodshrike, White-throated kingfisher, Indian nightjar, Jungle nightjar, and Large cuckooshrike were among the 17 species newly identified in the Silent Valley.

     

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  • Climate Change Impact on India and World – International Reports, Key Observations, etc.

    Mapping: Great Lakes

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Great Lakes

    Mains level: Not Much

    lake

    Scientists are building a sensor network to detect the trends in the water chemistry of Lake Huron, one of the five Great Lakes of North America.

    What is the Acidification of water bodies?

    • Acidification of oceans or freshwater bodies takes place when excess carbon dioxide in the atmosphere gets rapidly absorbed into them.
    • Scientists initially believed this might be a good thing, as it leaves less carbon dioxide in the atmosphere.
    • But in the past decade or so, it has been established that absorption of carbon dioxide leads to a lowering of the pH, which makes the water bodies more acidic.

    What are Great Lakes?

    • The Great Lakes are a series of large interconnected freshwater lakes in the mid-east region of North America that connect to the Atlantic Ocean via the Saint Lawrence River.
    • There are five lakes, which are Superior, Michigan, Huron, Erie, and Ontario and are in general on or near the Canada–US border.
    • Hydrologically, lakes Michigan and Huron are a single body joined at the Straits of Mackinac.
    • By itself, Lake Huron is the world’s third largest freshwater lake, after Lake Superior and Lake Victoria.
    • The Great Lakes Waterway enables modern travel and shipping by water among the lakes.

    Why are they significant?

    • The Great Lakes contain a fifth of the world’s total freshwater, and is a crucial source of irrigation and transportation.
    • They also serve as the habitat for more than 3,500 species of plants and animals.

    Acidification of Great Lakes

    • Scientists are developing a system that would be capable of measuring the carbon dioxide and pH levels of the Great Lakes over several years.
    • It is known that the increase in atmospheric carbon dioxide has caused the world’s oceans to turn more acidic.
    • Recently, it has been observed that by 2100, even the Great Lakes — Superior, Michigan, Huron, Erie, and Ontario — might approach acidity at around the same rate as the oceans.
    • Researchers hope the data from the Lake Huron project would add to scientific information on the subject.

    Consequences of acidification

    • The Great Lakes are believed to have been born some 20,000 years ago, when the Earth started to warm and water from melting glaciers filled the basins on its surface.
    • However, this rich ecosphere is under threat as the five lakes would witness a pH decline of 0.29-0.49 pH units — meaning they would become more acidic — by 2100.
    • This may lead to a decrease in native biodiversity, create physiological challenges for organisms, and permanently alter the structure of the ecosystem, scientists say.
    • It would also severely impact the hundreds of wooden shipwrecks that are believed to be resting at the bottom of these lakes.

     

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  • Wildlife Conservation Efforts

    Arittapatti: Tamil Nadu’s first biodiversity heritage site

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Arittapatti, Biodiversity Heritage Site (BHS)

    Mains level: Not Much

    Arittapatti

    The Tamil Nadu Government has issued a notification declaring Arittapatti in Melur block, Madurai district, a biodiversity heritage site.

    About Arittapatti

    • Arittapatti village, rich in ecological and historical significance, houses around 250 species of birds including three important raptors -birds of prey, namely the Laggar Falcon, the Shaheen Falcon and Bonelli’s Eagle.
    • It is also home to wildlife such as the Indian Pangolin, Slender Loris and pythons.
    • The biodiversity-rich area is surrounded by a chain of seven hillocks or inselbergs that serve as a watershed, charging 72 lakes, 200 natural springs and three check dams.
    • The Anaikondan tank, built during the reign of Pandiyan kings in the 16th century is one among them, the government notification said.
    • Several megalithic structures, rock-cut temples, Tamil Brahmi inscriptions and Jain beds add to the historical significance of the region.

    What is a Biodiversity Heritage Site (BHS)?

    • Biodiversity Heritage Sites are rich Biodiversity Areas and are important components of local ecosystems which are being conserved and managed by the society.
    • BHS are declared as per provision under Section 37(1) of Biological Diversity Act, 2002.
    • The State Government may, from time to time in consultation with the local bodies, notify the areas of biodiversity importance as biodiversity heritage sites under this Act.

     

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  • Terrorism and Challenges Related To It

    Places in news: Sahel Region

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Sahel Region

    Mains level: NA

    sahel

    French President Emmanuel Macron announced the end of the decade-long Operation Barkhane in Africa’s Sahel Region.

    Note the nations falling in Sahel Region.

    Sahel Region

    • The Sahel is the ecoclimatic and biogeographic realm of transition in Africa between the Sahara to the north and the Sudanian savanna to the south.
    • Having a semi-arid climate, it stretches across the south-central latitudes of Northern Africa between the Atlantic Ocean and the Red Sea.
    • The name is derived from the Arabic term for “coast, shore”; this is explained as being used in a figurative sense in reference to the southern edge of the vast Sahara.
    • The Sahel part includes from west to east parts of northern Senegal, southern Mauritania, central Mali, northern Burkina Faso, the extreme south of Algeria, Niger, the extreme north of Nigeria, the extreme north of Cameroon and the Central African Republic, central Chad, central and southern Sudan, the extreme north of South Sudan, Eritrea and the extreme north of Ethiopia.

    What is Operation Barkhane?

    • France began its military operations in Sahel in January 2013.
    • Titled Operation Serval, it was limited to targeting Islamic extremists linked to al-Qaeda who took control of northern Mali.
    • However, in 2014, the mission was scaled up, renamed Operation Barkhane and was aimed at counter-terrorism.
    • The objective was to assist local armed forces to prevent the resurgence of non-state armed groups across the Sahel region.
    • Around 4,500 French personnel were deployed with the local joint counter-terrorism force.

     

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