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Subject: Biodiversity

1. Ecology & Ecosystems
2. Indian Biodiversity

  • Gujarat bans Conocarpus Plant

    Conocarpus

    Central Idea

    • Gujarat has issued a circular to control the growth of the exotic species Conocarpus, citing adverse impacts on the environment and human health.

    About Conocarpus Plant

    • Classified as invasive, Conocarpus is a mangrove
    • During the winter season, these trees produce flowers, releasing pollen in nearby regions.
    • In India, various public authorities have used it for landscaping purposes, including road medians, roadsides, and public gardens.
    • This tree is renowned for maintaining its dark green foliage year-round, even in harsh environmental conditions like extreme temperatures.
    • Its adaptability allows it to thrive in highly saline areas.
    • Conocarpus exhibits an excessive water-absorption trait from the soil, posing a threat to groundwater.
    • Its deep root system can disrupt infrastructure communication cables, drainage lines, and potable water pipelines.

    Previous bans

    • Telangana had previously banned the same plant species due to concerns over its impact.
    • Conocarpus is not the sole exotic plant species to fall out of favor.
    • In recent years, Delhi and Kerala have grappled with the need to curb the growth of non-indigenous trees that were adversely affecting local environments, flora, and fauna due to their prolific presence.

  • Balsams blossom in Munnar

    Central Idea

    • The genus Impatiens, locally known as Kasithumba and Onappovu, is currently enchanting tourists with its vibrant pink blooms in Munnar.

    What are Balsams?

    • Distinctive Feature: Balsams are commonly referred to as ‘touch-me-not’ due to the unique behavior of their mature seeds bursting open upon touch and distributing seeds.
    • Sign of Active Micro-Climate: Botanists suggest that the extensive flowering of balsams in Munnar indicates the continued activity of the microclimate in this hill station.
    • Indian Balsam Species: India hosts a total of 220 balsam species, with a significant presence of 135 species in the southern Western Ghats.
    • Balsam Paradise: Idukki, particularly the high ranges around Anamudi, is renowned for its rich diversity of wild balsams. Scientists often term the district as a ‘balsam paradise.’

    Conservation Efforts

    • Balsams in Munnar: Munnar boasts 46 balsam species, extending from Munnar to Chinnar and Bison Valley.
    • Protection in National Park: The Eravikulam National Park alone is home to over 40 wild balsam species, with the Forest Department ensuring their protection.
    • Unparalleled Diversity: Prasad G, working plan officer, highlights that Munnar’s altitude has unveiled 46 balsam species, a level of diversity unmatched elsewhere in the world.
    • Indicator Species: Balsams play a crucial role as indicator species for climate change. Any alterations in the climate of a region are often reflected in the population of these plants.

  • Gurnards: New fish species discovered in Bengal’s Digha harbour

    Gurnards

    Central Idea

    • Scientists from the Zoological Survey of India (ZSI) have unveiled a captivating discovery— Gurnards, a new species of deep water marine fish, displaying a striking orange hue.
    • This remarkable find was made off the coast of Digha Mohana in West Bengal.

    Gurnards or Sea-robins

    • The newfound species falls within the Triglidae family, commonly referred to as gurnards or sea-robins.
    • Named Pterygotrigla intermedica, this species exhibits distinct characteristics that set it apart from its counterparts, such as Pterygotrigla hemisticta.
    • It marks the fourth species within the Pterygotrigla genus to be reported in India.
    • This family boasts a global diversity with a total of 178 species, emphasizing the significance of this discovery.

  • Mainstreaming Biodiversity: A Pivotal Step Towards a Sustainable Future

    Biodiversity

    Central Idea

    • The observance of International Biodiversity Day on May 22 serves as a powerful reminder of the critical role our natural world plays in addressing the climate change crisis and the threat to our future posed by declining biodiversity. Preserving and enhancing biodiversity emerges as a cost-effective approach to sequester carbon dioxide and mitigate climate change.

    What is Biodiversity?

    • Biodiversity refers to the variety of life forms found on Earth, including plants, animals, microorganisms, and their interactions within ecosystems. It encompasses the diversity of species, genetic diversity within species, and the diversity of ecosystems.
    • Biodiversity is not limited to specific areas but exists everywhere, from terrestrial habitats like forests, grasslands, and deserts to aquatic environments such as rivers, lakes, and oceans.
    • It also includes the diversity of habitats, ecological processes, and the complex web of relationships between organisms and their environment.
    • Biodiversity is crucial for the functioning of ecosystems and provides numerous benefits to humans. It supports essential ecosystem services, such as pollination, nutrient cycling, soil formation, and water purification.
    • Biodiversity also contributes to food security by providing a variety of crops, livestock, and wild foods. Additionally, it plays a vital role in medicine, as many pharmaceuticals are derived from natural sources.

    Biodiversity

    The Decline of Biodiversity: key contributing factors

    • Habitat Loss: The conversion of natural habitats into agricultural lands, urban areas, and industrial zones is a primary driver of biodiversity loss. Deforestation, land degradation, and habitat fragmentation disrupt ecosystems and displace numerous species.
    • Climate Change: Rising temperatures, altered precipitation patterns, and extreme weather events associated with climate change have a profound impact on biodiversity. Species may struggle to adapt or migrate quickly enough, leading to population declines and even extinction.
    • Pollution: Pollution, including air and water pollution, poses a severe threat to biodiversity. Chemical contaminants, such as pesticides, herbicides, and industrial pollutants, can accumulate in ecosystems and harm both flora and fauna.
    • Overexploitation: Unsustainable harvesting of wildlife, overfishing, and illegal wildlife trade put immense pressure on species populations. This overexploitation disrupts ecological balance and can lead to the collapse of ecosystems.
    • Invasive Species: Non-native species introduced into new environments can outcompete native species, disrupt ecological interactions, and cause harm to local ecosystems. Invasive species often lack natural predators or controls, allowing them to multiply rapidly.
    • Agricultural Practices: Intensive agricultural practices, including the use of chemical inputs, monoculture farming, and the destruction of natural habitats for agriculture, contribute to the loss of biodiversity. This impacts both terrestrial and aquatic ecosystems.
    • Disease and Pathogens: The spread of diseases and pathogens, both natural and human-mediated, can have devastating effects on wildlife populations. Diseases can cause mass die-offs and population declines, leading to decreased biodiversity.
    • Inadequate Conservation Efforts: Inadequate conservation measures, weak enforcement of protective laws, and insufficient funding for conservation initiatives contribute to the decline of biodiversity. Conservation efforts are often fragmented and not prioritized, further exacerbating the problem.
    • Lack of Public Awareness and Engagement: Limited awareness among the general public about the importance of biodiversity and the consequences of its decline hinders collective action. Engaging communities and fostering a sense of responsibility towards biodiversity is crucial for effective conservation.

    Reimagining Biodiversity Management: A holistic and inclusive approach

    • Multifunctional Landscapes: Moving beyond the traditional focus on forests, biodiversity management should encompass diverse ecosystems such as grasslands, savannas, alpine pastures, and deserts. Recognizing the value of multifunctional landscapes allows for the conservation and sustainable use of various ecological communities.
    • Community Engagement: Empowering local communities and indigenous groups in biodiversity management is crucial. Their traditional knowledge, practices, and direct involvement are valuable assets for effective conservation and sustainable use of biodiversity. Establishing platforms such as gram sabhas and biodiversity management committees facilitates community participation and decision-making.
    • Mainstreaming Biodiversity: Biodiversity considerations should be integrated into all sectors and aspects of society. Development programs, government departments, public and private institutions, and industries should incorporate biodiversity conservation and sustainable practices as core principles.
    • Policy and Legal Frameworks: Ensuring effective implementation of regulations, enforcing laws against biodiversity crimes, and revisiting policies that hinder biodiversity protection are key steps. It is also important to support the rights of indigenous communities and local stakeholders through legal mechanisms.
    • Education and Awareness: Promoting biodiversity education and raising awareness about its importance among the general public, policymakers, and stakeholders is crucial. This includes integrating biodiversity topics into educational curricula, conducting awareness campaigns, and disseminating information about the benefits of biodiversity conservation.
    • Research and Science-Based Approaches: Investing in scientific research, monitoring, and data collection is vital for evidence-based decision-making and effective biodiversity management. This includes studying biodiversity patterns, understanding ecosystem dynamics, and identifying key species and habitats for conservation priorities.
    • Collaborative Partnerships: Building partnerships and collaborations among various stakeholders is essential. This includes government agencies, non-governmental organizations, research institutions, local communities, and private sectors. Collaboration fosters knowledge sharing, resource mobilization, and the implementation of joint initiatives for biodiversity conservation.
    • Sustainable Financing: Ensuring sustainable financing mechanisms for biodiversity conservation is crucial. This includes exploring innovative funding models, leveraging public-private partnerships, and integrating biodiversity into sustainable development financing frameworks.
    • International Cooperation: Collaborating at the global level is necessary to address transboundary biodiversity issues. Sharing best practices, knowledge exchange, and aligning efforts with international conventions and agreements such as the Convention on Biological Diversity (CBD) can strengthen biodiversity management.

    Facts for prelims

    What is biosphere reserve?

    • Protected area: A biosphere reserve is an area of land or water that is protected by law in order to support the conservation of ecosystems, as well as the sustainability of mankind’s impact on the environment.

    Current status of Biosphere reserves

    • Worldwide: There are 738 biosphere reserves in 134 countries, including 22 transboundary sites.
    • In India:
    • Presently, there are 18 notified biosphere reserves in India. Ten out of the eighteen biosphere reserves are a part of the World Network of Biosphere Reserves, based on the UNESCO Man and the Biosphere (MAB) Programme list.
    • In India, the first biosphere reserve was designated by UNESCO in 2000, namely, the blue mountains of the Nilgiris stretching over Tamil Nadu, Karnataka and Kerala.

    Our Role as Caretakers: key actions we can take as responsible stewards

    • Sustainable Land Use: Promoting sustainable land use practices is essential to minimize habitat loss and degradation. This includes supporting initiatives such as reforestation, afforestation, and sustainable agriculture that maintain ecosystem integrity.
    • Responsible Consumption: Making informed choices as consumers can have a significant impact on biodiversity. Supporting sustainable and ethically sourced products, reducing waste, and opting for environmentally friendly practices can reduce the demand for products that harm biodiversity.
    • Preservation of Natural Habitats: Protecting and preserving natural habitats, including forests, wetlands, and marine ecosystems, is critical. This involves advocating for the establishment and expansion of protected areas, national parks, and wildlife reserves.
    • Sustainable Fisheries: Supporting sustainable fishing practices, such as responsible fishing quotas, implementing fishing regulations, and avoiding overfishing, helps maintain healthy marine ecosystems and protect marine biodiversity.
    • Support Conservation Organizations: Contributing to and supporting conservation organizations and initiatives can make a significant difference. Donations, volunteering, and participation in citizen science projects can aid in research, conservation efforts, and advocacy for biodiversity protection.

    Biodiversity

    What is The National Mission on Biodiversity and Human Wellbeing?

    • Objective: The mission aims to integrate biodiversity conservation and ecosystem services into various sectors to address critical challenges related to climate change, regenerative agriculture, and ecosystem and public health.
    • Enhancing Human Wellbeing: The mission focuses on fostering human well-being by enhancing and conserving biodiversity. It aims to support the United Nations Sustainable Development Goals related to poverty alleviation, nutrition and health, and environmental protection.
    • People-Centric Approach: The mission recognizes the importance of active engagement and participation of all citizens in biodiversity conservation and sustainable use. It places people at the center of the mission’s activities.
    • Mainstreaming Biodiversity: The mission seeks to embed biodiversity considerations into development-oriented programs of both the public and private sectors. This ensures that biodiversity conservation becomes an integral part of decision-making processes and actions.
    • Education and Awareness: The mission aims to create awareness about the importance of biodiversity and foster curiosity about nature. It seeks to instill a sense of responsibility for safeguarding biodiversity in every child and student.
    • Nature-Based Solutions: The mission emphasizes the utilization of nature-based solutions to address challenges related to climate change, agriculture, and public health. It recognizes the value of ecosystems and biodiversity in providing sustainable solutions.
    • Traditional Knowledge and Community Participation: The mission promotes the integration of traditional knowledge and the active participation of local communities and indigenous groups in biodiversity management. It acknowledges their role in conservation efforts.
    • Sustainable Development Goals Alignment: The mission aligns with the United Nations Sustainable Development Goals, aiming to contribute to poverty alleviation, nutrition and health, and environmental protection.
    • Pending Implementation: Although the mission has received preliminary approval from the Prime Minister’s Science, Technology, and Innovation Council, it is still in the proposal stage and yet to be fully implemented.

    Biodiversity

    Conclusion

    • The mainstreaming of biodiversity represents a significant step toward securing a sustainable future. Recognizing the interconnectedness of all life forms and ecosystems, we must redefine our approach to biodiversity management. The proposed National Mission on Biodiversity and Human Wellbeing provides a roadmap and empowers all citizens to take part in safeguarding our precious natural heritage.

     

  • Species in news: Alligator Gar

    alligator-gar

    Central Idea: The Jammu and Kashmir Lake Conservation and Management Authority (LCMA) discovered a rare type of fish known as “Alligator Gar” for the first time during the ongoing cleaning of famous Dal Lake in Srinagar.

    Alligator Gar

    Information
    Scientific Name Atractosteus spatula
    Size and Weight Up to 8 feet in length, over 300 pounds
    Appearance Long, narrow body; crocodile-like head; sharp teeth
    Distribution Central and North America, freshwater habitats
    Fossil Record Traces back to the Early Cretaceous, over 100 million years ago
    Feeding Habits Voracious predator, feeds on fish, turtles, waterfowl, etc.
    Coloration Brown or olive on upper body, lighter underside
    Longevity Can live for several decades
    Conservation Status Least Concerned (IUCN)

     

     

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  • MISHTI: Budgetary push for Mangroves

    mangrove

    The Union Budget for 2023-24 announced an initiative for mangrove plantation along the coastline and on saltpan lands, under MISHTI (Mangrove Initiative for Shoreline Habitats & Tangible Incomes).

    MISHTI

    • MISHTI is a new programme that will facilitate mangrove plantation along India’s coastline and on salt pan lands.
    • This new programme will aim at intensive afforestation of coastal mangrove forests.

    Implementation strategy

    • The Budget states that MISHTI will be implemented through convergence between-
    1. MGNREGS (Mahatma Gandhi National Rural Employment Guarantee Scheme),
    2. CAMPA (Compensatory Afforestation Fund Management and Planning Authority) Fund and other sources.

    What are Mangroves?

    • Mangroves are salt-tolerant plant communities found in tropical and subtropical intertidal regions.
    • They are important refuges of coastal biodiversity and also act as bio-shields against extreme climatic events.
    • With the threat of climate change and frequent tropical storms looming large, planting more mangroves is a welcome development for India which has a coastline of about 7,500 km.

    Mangroves in India

    • India has about 4,992 sq km (0.49 million hectares) of mangroves, according to the Indian State of Forest Report (IFSR) 2021.
    • Mangroves in India are distributed across nine States and three UTs with West Bengal having the highest mangrove cover of 2,114 sq km.
    • The IFSR report also points out that there has been an increase in the mangrove cover from 4,046 sq km in 1987 to 4,992 sq km in 2021.

    Why protect mangroves?

    • Infrastructure projects — industrial expansion, shifting coastlines, coastal erosion and storms, have resulted in a significant decrease in mangrove habitats.
    • Between 2010 and 2020, around 600 sq km of mangroves were lost of which more than 62% was due to direct human impacts, the Global Mangrove Alliance said in its 2022 report.

    Importance of mangroves

    • Biodiversity: Mangrove forests — consisting of trees and shrub that live in intertidal water in coastal areas — host diverse marine life.
    • Fishing grounds: They also support a rich food web, with molluscs and algae-filled substrate acting as a breeding ground for small fish, mud crabs and shrimps, thus providing a livelihood to local artisanal fishers.
    • Carbon sinks: Equally importantly, they act as effective carbon stores, holding up to four times the amount of carbon as other forested ecosystems.
    • Cyclone buffers: When Cyclone Amphan struck West Bengal in May, its effects were largely mitigated by the Sundarbans flanking its coasts along the Bay of Bengal.

    Threats to Mangroves

    • Anthropogenic activities: They are a major threat to the mangroves. Urbanization, industrialization and the accompanying discharge of industrial effluents, domestic sewage and pesticide residues from agricultural lands threaten these fragile ecosystems.
    • Saltpan and aquaculture: This causes huge damage to the mangroves. Shrimp farming alone destroyed 35,000 hectares of mangroves worldwide.
    • Destruction for farming: 40% of mangroves on the west coast has been converted into farmlands and other settlements in just 3 decades.
    • Sea-level rise: This is another challenge to these mangroves- especially on the Bay of Bengal coast.

    What lies ahead?

    • A contract-based one-time plantation under MGNREGS and CAMPA alone may not work unless the local communities take ownership of the forests.
    • Discharge of untreated domestic and industrial effluents into the rivers should be immediately stopped.
    • The natural inter-tidal flow along the coast should be conserved.

    Try this PYQ:

    Q. Which one of the following is the correct sequence of ecosystems in the order of decreasing productivity?

    (a) Oceans, lakes, grasslands, mangroves

    (b) Mangroves, oceans, grasslands, lakes

    (c) Mangroves, grasslands, lakes, oceans

    (d) Oceans, mangroves, lakes, grasslands

     

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  • Historic biodiversity deal gets the nod at COP15 summit in Canada

    biodiversity

    Negotiators reached a historic deal at a UN Convention on Biological Diversity (CBD) conference that would represent the most significant effort to protect the world’s lands and oceans and provide critical financing to save biodiversity in the developing world.

    Key outcomes

    [A] 30×30 Deal

    • Delegates committed to protecting 30% of land and 30% of coastal and marine areas by 2030, fulfilling the deal’s highest-profile goal, known as 30-by-30.
    • Currently, 17% of terrestrial and 10% of marine areas are protected.
    • Indigenous and traditional territories will also count toward this goal, as many countries and campaigners pushed for during the talks.
    • The deal also aspires to restore 30% of degraded lands and waters throughout the decade, up from an earlier aim of 20%.
    • And the world will strive to prevent destroying intact landscapes and areas with a lot of species, bringing those losses “close to zero by 2030”.

    [B] Money for nature

    • Signatories aim to ensure $200 billion per year is channeled to conservation initiatives, from public and private sources.
    • Wealthier countries should contribute at least $20 billion of this every year by 2025, and at least $30 billion a year by 2030.
    • This appeared to be the Democratic Republic of Congo’s main source of objection to the package.

    [C] Big companies report impacts on biodiversity

    • Companies should analyse and report how their operations affect and are affected by biodiversity issues.
    • The parties agreed to large companies and financial institutions being subject to “requirements” to make disclosures regarding their operations, supply chains and portfolios.
    • This reporting is intended to progressively promote biodiversity, reduce the risks posed to business by the natural world, and encourage sustainable production.

    [D] Harmful subsidies

    • Countries committed to identify subsidies that deplete biodiversity by 2025, and then eliminate, phase out or reform them.
    • They agreed to slash those incentives by at least $500 billion a year by 2030, and increase incentives that are positive for conservation.

    [E] Pollution and pesticides

    • One of the deal’s more controversial targets sought to reduce the use of pesticides by up to two-thirds.
    • But the final language to emerge focuses on the risks associated with pesticides and highly hazardous chemicals instead, pledging to reduce those threats by “at least half”, and instead focusing on other forms of pest management.
    • Overall, the Kunming-Montreal agreement will focus on reducing the negative impacts of pollution to levels that are not considered harmful to nature, but the text provides no quantifiable target here.

    [F] Monitoring and reporting progress

    • All the agreed aims will be supported by processes to monitor progress in the future, in a bid to prevent this agreement meeting the same fate as similar targets that were agreed in Aichi, Japan, in 2010, and never met.
    • National action plans will be set and reviewed, following a similar format used for greenhouse gas emissions under U.N.-led efforts to curb climate change.
    • Some observers objected to the lack of a deadline for countries to submit these plans.

    Back2Basics: Convention on Biological Diversity (CBD)

    • The CBD (wef 1993) known informally as the Biodiversity Convention, is a multilateral treaty.
    • The convention has three main goals:
    1. the conservation of biodiversity
    2. the sustainable use of its components
    3. the fair and equitable sharing of benefits arising from genetic resources
    • Its objective is to develop national strategies for the conservation and sustainable use of biological diversity, and it is often seen as the key document regarding sustainable development.
    • It has two supplementary agreements, the Cartagena Protocol and Nagoya Protocol.

    (1) Cartagena Protocol

    • It is an international treaty governing the movements of living modified organisms (LMOs) resulting from modern biotechnology from one country to another.

    (2) Nagoya Protocol

    • It deals with Access to Genetic Resources and the Fair and Equitable Sharing of Benefits Arising from their Utilization (ABS).

     

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  • Places in news: Great Barrier Reef

    A joint report by the International Union for Conservation of Nature (IUCN) and UNESCO’s World Heritage Centre (WHC) expressed concern about the status of the Great Barrier Reef (GBR) in Australia, recommending that it “be inscribed on the List of World Heritage in Danger.”

    About Great Barrier Reef

    • Australia’s Great Barrier Reef is the world’s largest reef system stretching across 2,300 km and having nearly 3,000 individual reefs.
    • It hosts 400 different types of coral, gives shelter to 1,500 species of fish and 4,000 types of mollusc.
    • Coral reefs support over 25% of marine biodiversity even as they take up only 1% of the seafloor.
    • The marine life supported by reefs further fuels global fishing industries.
    • Besides, coral reef systems generate $2.7 trillion in annual economic value through goods and service trade and tourism.
    • In Australia, the Barrier Reef, in pre-COVID times, generated $4.6 billion annually through tourism and employed over 60,000 people including divers and guides.

    What does the new report say?

    • The current report surveyed 87 reefs in the GBR between August 2021 and May 2022.
    • Coral cover is measured by determining the increase in the cover of hard corals.
    • The hard coral cover in northern GBR had reached 36% while that in the central region had reached 33%.
    • Meanwhile, coral cover levels declined in the southern region from 38% in 2021 to 34% in 2022.
    • The record levels of recovery, the report showed, were fuelled largely by increases in the fast-growing Acropora corals, which are a dominant type in the GBR.

    Threats found

    • Acropora corals are also the most susceptible to environmental pressures such as rising temperatures, cyclones, pollution, crown-of-thorn starfish (COTs) attacks which prey on hard corals and so on.

    Does this mean the reef is out of the woods?

    • Behind the recent recovery in parts of the reef, are the low levels of acute stressors in the past 12 months — no tropical cyclones, lesser heat stress in 2020 and 2022 as opposed to earlier.
    • Besides predatory attacks and tropical cyclones, scientists say that the biggest threat to the health of the reef is climate change-induced heat stress, resulting in coral bleaching.
    • The concern is that in the past decade, mass bleaching events have become more closely spaced in time.
    • The first mass bleaching event occurred in 1998 when the El Niño weather pattern caused sea surfaces to heat, causing 8% of the world’s coral to die.
    • The second event took place in 2002.
    • But the longest and most damaging bleaching event took place from 2014 to 2017. Mass bleaching then occurred again in 2020, followed by earlier this year.

    Back2Basics: Coral Reefs

    • Corals are marine invertebrates or animals which do not possess a spine.
    • They are the largest living structures on the planet.
    • Each coral is called a polyp and thousands of such polyps live together to form a colony, which grow when polyps multiply to make copies of themselves.
    • Corals are of two types — hard corals and soft corals.
    1. Hard corals extract calcium carbonate from seawater to build hard, white coral exoskeletons. Hard corals are in a way the engineers of reef ecosystems and measuring the extent of hard coral is a widely-accepted metric for measuring the condition of coral reefs.
    2. Soft corals attach themselves to such skeletons and older skeletons built by their ancestors. Soft corals also add their own skeletons to the hard structure over the years. These growing multiplying structures gradually form coral reefs.

    How do corals bleach?

    • Corals share a symbiotic relationship with single-celled algae called zooxanthellae.
    • The algae prepares food for corals through photosynthesis and also gives them their vibrant colouration.
    • When exposed to conditions like heat stress, pollution, or high levels of ocean acidity, the zooxanthellae start producing reactive oxygen species not beneficial to the corals.
    • So, the corals kick out the colour-giving algae from their polyps, exposing their pale white exoskeleton and leading to coral starvation as corals cannot produce their own food.
    • Bleached corals can survive depending on the levels of bleaching and the recovery of sea temperatures to normal levels.
    • Severe bleaching and prolonged stress in the external environment can lead to coral death.

    Try this PYQ:

    Consider the following statements:

    1. Most of the world’s coral reefs are in tropical waters.
    2. More than one third of the world’s coral reefs are located in the territories of Australia, Indonesia and Philippines.
    3. Coral reefs host far more number of animal phyla than those hosted by tropical rainforests.

    Which of the above statements is/are correct?

    (a) 1 and 2 only

    (b) 3 only

    (c) 1 and 3 only

    (d) 1 and 3 only

     

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  • Arittapatti: Tamil Nadu’s first biodiversity heritage site

    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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  • World Network of biosphere reserves: A backbone of biodiversity conservation

    biosphere reserves

    Context

    • November 3 will be the first ‘The International Day for Biosphere Reserves’, to be celebrated beginning 2022. The World Network of Biosphere Reserves (WNBR) was formed in 1971, as a backbone for biodiversity conservation, ecosystem restoration, and living in harmony with nature.

    biosphere reserves

    What is biosphere reserve?

    • Protected area: A biosphere reserve is an area of land or water that is protected by law in order to support the conservation of ecosystems, as well as the sustainability of mankind’s impact on the environment.
    • Serves as a Platform to study:  They are places that provide local solutions to global challenges. Biosphere reserves include terrestrial, marine and coastal ecosystems. Each site promotes solutions reconciling the conservation of biodiversity with its sustainable use.
    • Learning places for sustainable development: Biosphere reserves are ‘learning places for sustainable development’. They are sites for testing interdisciplinary approaches to understanding and managing changes and interactions between social and ecological systems, including conflict prevention and management of biodiversity.
    • Biodiversity conservation programs are carried out: To carry out the complementary activities of biodiversity conservation and sustainable use of natural resources, biosphere reserves are traditionally organized into 3 interrelated zones, known as: the core area, the buffer zone, and a transition zone or ‘area of cooperation.
    • The core purpose: The purpose of the formation of the biosphere reserve is to conserve in situ all forms of life, along with its support system, in its totality, so that it could serve as a referral system for monitoring and evaluating changes in natural ecosystems. Each reserve aims to help scientists and the environmental community figure out how to protect the world’s plant and animal species while dealing with a growing population and its resource needs.

    What is the process of recognition as Biosphere reserve?

    • All biosphere reserves are internationally recognized sites on land, at the coast, or in the oceans.
    • Governments alone decide which areas to nominate. Before approval by UNESCO, the sites are externally examined.
    • If approved, they will be managed based on a plan, reinforced by credibility checks while remaining under the sovereignty of their national government.

    biosphere reserves

    Current status of Biosphere reserves

    • Worldwide: There are 738 biosphere reserves in 134 countries, including 22 transboundary sites.
    • In India:
    • Presently, there are 18 notified biosphere reserves in India. Ten out of the eighteen biosphere reserves are a part of the World Network of Biosphere Reserves, based on the UNESCO Man and the Biosphere (MAB) Programme list.
    • In India, the first biosphere reserve was designated by UNESCO in 2000, namely, the blue mountains of the Nilgiris stretching over Tamil Nadu, Karnataka and Kerala.

    You must know- UNESCO Man and the Biosphere (MAB) Programme

    • The MAB programme is an intergovernmental scientific programme.
    • It aims to establish a scientific basis for enhancing the relationship between people and their environments.
    • It combines the natural and social sciences with a view to improving human livelihoods and safeguarding natural and managed ecosystems.
    • It promotes innovative approaches to economic development that are socially and culturally appropriate and environmentally sustainable.

    What is World Network of Biosphere Reserves (WNBR)?

    • Dynamic network of cooperation: The WNBR, an amazing network of sites of excellence, is a unique tool for cooperation through sharing knowledge, exchanging experiences, building capacity and promoting best practices.
    • Fosters harmonious integration of people and nature: Its members are always ready to support each other.  It fosters the harmonious integration of people and nature for sustainable development through participatory dialogue; knowledge sharing; poverty reduction and human well-being improvements; respect for cultural values and society’s ability to cope with change – thus contributing to the 2030 Agenda and the Sustainable Development Goals (SDGs)
    • A tool to develop sustainable approach: The Network is one of the main international tools to develop and implement sustainable development approaches in a wide array of contexts
    • The principle of Living with harmony: The best concept for ‘Living in Harmony with Nature’ that exists in the United Nations system, is the WNBR, making these places more important today than ever before, where humans are thriving and relearning how to live with nature.

     

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