Biodiversity Quiz
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Questions and Answers

What does biodiversity refer to?

  • The total number of organisms in a specific area
  • The interaction between biotic and abiotic factors
  • The variety of life on Earth including ecosystems and species (correct)
  • The genetic variation within a single species

What is NOT a method of estimating biodiversity?

  • Genetic index (correct)
  • Species richness
  • Shannon index
  • Simpson index

Which of the following ecosystems is classified as a terrestrial ecosystem?

  • Lake
  • Coral reef
  • Pond
  • Grassland (correct)

Which term describes species diversity between ecosystems?

<p>Beta diversity (B)</p> Signup and view all the answers

What is the estimated total number of species on Earth?

<p>10 million to 30 million (A)</p> Signup and view all the answers

What does species evenness refer to in biodiversity measurement?

<p>The relative abundance of each species in a community (A)</p> Signup and view all the answers

Which organization promotes biodiversity conservation and organic farming in India?

<p>Navdanya (C)</p> Signup and view all the answers

What is the main cause of the current sixth mass extinction?

<p>Man-made activities (D)</p> Signup and view all the answers

Which region is experiencing the steepest decline in biodiversity?

<p>Tropics (C)</p> Signup and view all the answers

What is considered the next most common primary threat to biodiversity after habitat loss?

<p>Climate change (D)</p> Signup and view all the answers

Which species is extinct in India according to the provided content?

<p>Pink Headed Duck (C)</p> Signup and view all the answers

What is one of the primary causes of habitat degradation?

<p>Over-exploitation (D)</p> Signup and view all the answers

Which statement accurately reflects wildlife corridors?

<p>They connect wildlife populations separated by human activities. (B)</p> Signup and view all the answers

What factor has caused the introduction of alien species like Lantana and Mikenia?

<p>Human activities (D)</p> Signup and view all the answers

What percentage of mammal species are currently threatened, according to the content provided?

<p>10% (D)</p> Signup and view all the answers

At what rate did plant and animal species migrate polewards in the last half of the 20th Century?

<p>4 miles per decade (B)</p> Signup and view all the answers

What role does biodiversity play in food security?

<p>It provides genetic diversity necessary for crop resilience. (B)</p> Signup and view all the answers

Which of the following is true about the use of plant species in medicine?

<p>Sarpagandha has been utilized traditionally for several ailments. (D)</p> Signup and view all the answers

What is an example of an ethical value related to biodiversity?

<p>Every species has a right to exist on Earth. (A)</p> Signup and view all the answers

What has contributed to the current rate of species extinction being ten thousand times higher than the natural rate?

<p>Increased agricultural demands and urban development. (C)</p> Signup and view all the answers

According to the Living Planet Index 2014, how much have representative populations of mammals, birds, reptiles, amphibians, and fish declined since 1970?

<p>52% (A)</p> Signup and view all the answers

What is a consequence of losing a species from an ecosystem?

<p>The ecological balance may be disrupted. (D)</p> Signup and view all the answers

Which of the following is NOT a major threat to freshwater species?

<p>Climate change (B)</p> Signup and view all the answers

What is a primary contribution of biodiversity to climate regulation?

<p>Forests and wetlands help sequester carbon. (B)</p> Signup and view all the answers

What percentage of penguin populations have shrunk in parts of Antarctica over the past 25 years?

<p>33 percent (B)</p> Signup and view all the answers

What factor has contributed to the decline of 90 percent of all large fishes in the world's oceans?

<p>Overfishing (D)</p> Signup and view all the answers

Which animal has seen its population decline primarily due to hunting and poaching for its bones and skin?

<p>Bengal Tiger (B)</p> Signup and view all the answers

What conservation effort focuses on the sustainable use of biological resources?

<p>The Biodiversity Convention (D)</p> Signup and view all the answers

How did Emperor Ashoka contribute to wildlife protection in the 3rd Century BC?

<p>Created animal hospitals (A)</p> Signup and view all the answers

What is one major misconception about nature conservation?

<p>Nature conservation is against development (C)</p> Signup and view all the answers

What is a significant cause of human-animal conflict mentioned in the content?

<p>Destruction of wildlife corridors (A)</p> Signup and view all the answers

What is one tradition of conservation mentioned in the content?

<p>Animal worship (A)</p> Signup and view all the answers

What is the percentage of the world's biodiversity found in just 2% of the earth's surface?

<p>8% (B)</p> Signup and view all the answers

How many major forest types are identified in the biodiversity content?

<p>16 (A)</p> Signup and view all the answers

Which region in India is not considered a biodiversity hotspot?

<p>Thar Desert (B)</p> Signup and view all the answers

Which plant has the highest number of cultivated varieties in India?

<p>Rice (A)</p> Signup and view all the answers

What percentage of India's amphibians are considered endemic?

<p>61% (C)</p> Signup and view all the answers

Which of the following is the state animal of Tamil Nadu?

<p>Nilgiri Tahr (A)</p> Signup and view all the answers

How many species of wild relatives of cultivated crops originated in India?

<p>320 (A)</p> Signup and view all the answers

Which of the following statements about India's medicinal plants is false?

<p>They are primarily exotic species. (A)</p> Signup and view all the answers

Which of the following groups has the highest number of species in India?

<p>Insects (D)</p> Signup and view all the answers

The Western Ghats biodiversity hotspot accounts for what percentage of the world's amphibian species?

<p>86% (C)</p> Signup and view all the answers

What was the primary purpose of the World Heritage Convention established in 1972?

<p>To ensure that biodiversity is recognized as global heritage (C)</p> Signup and view all the answers

Which national act was implemented to protect wildlife in India and was later amended in 1991?

<p>Wildlife Protection Act (A)</p> Signup and view all the answers

Which of the following conservation efforts is specifically associated with the protection of forests in India?

<p>Chipko Movement (A)</p> Signup and view all the answers

What is a primary characteristic of in-situ conservation?

<p>It preserves species in their natural habitats. (C)</p> Signup and view all the answers

How many Wildlife Sanctuaries are designated in India according to the provided data?

<p>515 (B)</p> Signup and view all the answers

Which of the following is NOT a solution proposed to enhance conservation efforts?

<p>Increase fossil fuel reliance (A)</p> Signup and view all the answers

What is the primary goal of ex-situ conservation strategies?

<p>To maintain genetic germplasm outside their natural habitat. (A)</p> Signup and view all the answers

Which of the following solutions promotes equitable resource governance?

<p>Value nature in economic terms (C)</p> Signup and view all the answers

Flashcards

What is Ecology?

The study of how living things interact with their environment.

Biotic factors

Living factors in an ecosystem, such as plants, animals, and fungi.

Abiotic factors

Non-living factors in an ecosystem, such as temperature, water, and sunlight.

What is Biodiversity?

The variety of life on Earth, encompassing all plants, animals, fungi, and microorganisms.

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Species Diversity

The number of different species in a particular area.

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Genetic Diversity

The variety of genes within a species.

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Ecosystem diversity

The range of different habitats and ecosystems in a region.

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Species Evenness

A measure of how evenly distributed different species are in a community.

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Why is every species important?

Each species is essential for the balance and functioning of ecosystems. Like a chain with many links, if one breaks, the whole system weakens.

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Why is biodiversity valuable to humans?

Biodiversity provides us with essential services like food, clean water, and stable climate.

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What are some economic values of biodiversity?

Many species have economic value, serving as sources for food, medicine, and industrial materials.

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What are some ethical values of biodiversity?

It's our ethical responsibility to protect all life forms on this planet. Every species has an intrinsic right to exist.

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What are some aesthetic values of biodiversity?

Biodiversity contributes to the overall beauty and richness of life on Earth, enriching our world with diverse colors, sounds, and landscapes.

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What is the current state of biodiversity?

The loss of biodiversity is accelerating at an alarming rate, with extinction rates far exceeding natural levels. Every species lost is a permanent loss.

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What are some key threats to biodiversity?

Habitat loss, pollution, and invasive species are major threats to biodiversity, contributing to the decline of populations and ecosystems.

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What makes India a biodiversity hotspot?

India is home to a vast range of ecosystems and climatic conditions, resulting in exceptional biodiversity.

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What areas in India have high endemism?

India possesses a remarkable number of endemic species, particularly evident in the Northeast, Northwest, and Eastern Himalayas, as well as the Western Ghats.

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How significant is India to global agriculture?

India is known for its extensive agricultural heritage, being the origin of numerous cultivated crops and their wild relatives.

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What is the significance of India's endemic plant species?

India boasts an impressive number of endemic plant species, highlighting the unique and irreplaceable biodiversity of its ecosystems.

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Why are the Western Ghats a biodiversity hotspot?

India's Western Ghats are recognized as a biodiversity hotspot, home to an extraordinary diversity of species.

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How does the Western Ghats contribute to conservation?

The Western Ghats are a crucial habitat for endangered species like the Nilgiri Thar, highlighting the need for conservation efforts.

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What is the significance of the Nilgiri Biosphere Reserve?

The Nilgiri Biosphere Reserve, India's first, showcases the remarkable biodiversity of the Western Ghats.

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What is the controversy surrounding Western Ghats conservation?

The Western Ghats conservation plan has been subject to controversy, with differing opinions on the extent and nature of protection.

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What role do medicinal plants play in India?

Medicinal plants play a crucial role in Indian culture and healthcare, contributing to livelihoods and traditional practices.

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What are the key characteristics of a biodiversity hotspot?

Biodiversity hotspots are regions with high endemism that face significant threats from human activities, making conservation efforts paramount.

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Water Connectivity and Loss of Biodiversity

Loss of biodiversity due to changes in water levels and how freshwater systems connect.

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Biodiversity Hotspots

The greatest declines in biodiversity are observed in the tropics and the Southern Ocean.

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Affected Marine Species

Marine turtles, sharks, and large migratory seabirds are among the species experiencing declining populations.

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Main Causes of Biodiversity Decline

Habitat loss and degradation, along with exploitation through hunting and fishing, are the primary drivers of biodiversity decline.

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Climate Change Impacts

Climate change is emerging as a significant threat to biodiversity, and its pressure on populations is expected to intensify.

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Habitat Fragmentation

Habitat loss caused by deforestation, mining, dams, and pollution fragment animal habitats, making it difficult for them to thrive.

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Wildlife Corridor

Wildlife corridors are areas connecting fragmented habitats, allowing animals to move freely, find food, and reproduce.

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Introduced Species

Introduced species, like Lantana and Mikenia, can disrupt ecosystems, outcompeting native species and causing problems.

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Global Warming

The increase in Earth's average temperature, primarily caused by human activities releasing greenhouse gases into the atmosphere.

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Coral Bleaching

The process of coral losing their vibrant colors and turning white due to stress caused by factors like rising ocean temperatures, pollution, and acidity.

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Penguin Population Decline

The decline in the number of penguins in parts of Antarctica, attributed to the shrinking of winter sea ice, their essential habitat.

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Decline of Large Fish

The disappearance of 90% of all large fish from the world's oceans over the past 50 years, primarily due to overfishing and habitat destruction.

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Human-Animal Conflicts

The conflict between humans and animals, often arising from habitat encroachment, resource competition, or retaliation for perceived threats.

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Hunting/Poaching

The practice of hunting or killing animals illegally for their body parts, often for commercial purposes, leading to population decline and extinction.

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Tradition of Conservation

A traditional approach to preserving natural resources, often rooted in religious beliefs and cultural practices.

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Sustainable Development

The idea that development and environmental protection are interconnected and that true progress requires both economic growth and responsible use of natural resources.

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Ramsar Convention

An international agreement aimed at protecting wetlands and their biodiversity, emphasizing the importance of these habitats for ecological balance and human well-being.

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Indian Forest Act 1927

The Indian Forest Act, enacted in 1927, serves as a critical framework to regulate the use and conservation of forests in India, promoting sustainable management and preventing deforestation.

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Environmental Protection Act 1986

The Environmental Protection Act, 1986, lays down a comprehensive legal framework for protecting and improving the environment in India, addressing pollution, conservation, and sustainable development.

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Forest Conservation Act 1980

The Forest Conservation Act, 1980, aims to protect forests from being diverted for non-forest purposes, ensuring their conservation and maintaining their vital ecological roles.

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Wildlife Protection Act 1972

The Wildlife Protection Act, 1972, provides legal protection to endangered and vulnerable species of flora and fauna in India, aiming to prevent their extinction and safeguard their habitats.

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Biodiversity Act 2002

The Biodiversity Act, 2002, seeks to regulate access to and use of biological resources, promoting their conservation, sustainable use, and equitable sharing of benefits arising from their use.

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Chipko Movement

Chipko movement, a non-violent protest movement, successfully campaigned for the protection of forests by embracing trees and preventing their felling. The movement highlights the power of community action in environmental conservation.

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Ex-situ Conservation

Ex-situ conservation techniques involve preserving genetic material and species outside their natural habitats, providing a safety net for endangered species and promoting their recovery while mitigating threats in the wild.

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Study Notes

  • Biodiversity is the variety of life on Earth.
  • It is the product of 4 billion years of evolution.
  • Biodiversity is measured by species diversity, genetic diversity, and variety of ecosystems.
  • Species diversity includes a wide range of organisms, such as various animals like tigers, elephants, and birds and diverse plants.
  • Genetic diversity refers to the genetic variations within species, such as the differences in human populations.
  • Ecosystem diversity refers to the different types of ecosystems, such as terrestrial and aquatic. Specific examples of terrestrial ecosystems are evergreen forests, grasslands, deciduous forests, and alpine forests. Examples of aquatic ecosystems include rivers, lakes, and ponds and marine/coastal ecosystems like mangroves and coral reefs.
  • India has a vast amount of domesticated biodiversity, with 50,000 varieties of rice and eight breeds of buffaloes.
  • India is among the 17 mega-diversity countries globally.
  • 8% of the world's biodiversity is found in just 2% of the Earth's surface in India.
  • India has 16 major forest types, covering 21% of the country.
  • India has 30,000 cultivated plants.
  • India has 11,058 endemic plant species and high endemicity for various groups such as amphibians (61% of species), reptiles (47%), and a range of fish.
  • India has 45,500 plant species (including 17,527 flowering plants), 91,200 animal species (with 57,000 insects being the highest), 4,000 molluscs, 2,546 fish, 460 reptiles, 248 amphibians, 1,232 birds, 397 mammals, and 20,000 invertebrates.
  • India has 8,000 medicinal plants used in 50,000 herbal formulations.
  • India has two major biodiversity hotspots: Western Ghats and North East India.
  • Criteria for biodiversity hotspots include supporting over 1,500 endemic species, having lost over 70% of original habitats, and with high numbers of vertebrates and flowering plants in a small percentage of the land area.
  • There is a loss of biodiversity in India and globally.
  • The natural rate of extinction of species is one species per year, however the current rate of extinction is 1 species per hour which is 10,000 times higher than the natural rate.
  • The main threats to biodiversity include habitat loss, over-exploitation of species, pollution, and invasive species. Loss of wildlife corridors are also detrimental to biodiversity.
  • Human-wildlife conflicts and trade in wildlife species, such as elephants and tigers, also pose serious threats.
  • There are 102 national parks, 515 wildlife sanctuaries, 4 conservation reserves, 47 community reserves, 41 tiger reserves, 25 elephant reserves, 25 Ramsar sites, 465 important bird areas, and 5 UNESCO heritage sites within protected areas.
  • Conservation efforts include the Chipko movement, silent valley saving efforts, and the project elephant conservation initiatives while recognizing that conservation needs to be sustainable to sustain human and wildlife habitats.
  • International conventions support biodiversity conservation through the Biodiversity Convention, the Ramsar Convention, the World Heritage Convention, and the Convention on International Trade in Endangered Species of Wild Flora and Fauna.
  • National conservation strategies include the Indian Forest Act, Environmental Protection Act, Forest Conservation Act, Fisheries Act, Wildlife Protection Act, Biodiversity Act, and Maritime Zones Act.
  • Solutions for conserving biodiversity involve preserving natural capital, producing better with environmentally sustainable practices, and consuming more wisely. Equitable resource governance is also key.

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Test your knowledge on biodiversity with this quiz covering various aspects such as species diversity, ecosystems, and conservation efforts. Answer questions about methods of estimating biodiversity and the current state of species extinction. Perfect for students and nature enthusiasts alike!

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