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Summary: Conservation of Plants & Animals Notes | Study Science Class 8 - Class 8

Document Description: Summary: Conservation of Plants & Animals for Class 8 2022 is part of Science Class 8 preparation. The notes and questions for Summary: Conservation of Plants & Animals have been prepared according to the Class 8 exam syllabus. Information about Summary: Conservation of Plants & Animals covers topics like Deforestation and Summary: Conservation of Plants & Animals Example, for Class 8 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises and tests below for Summary: Conservation of Plants & Animals.

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Table of contents
Deforestation
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Deforestation
  • Deforestation is the process of clearing of forests in order to use the land for industrial, agricultural, and other purposes.

Causes of Deforestation

  • Natural causes
  • Forest fire
  • Severe droughts
  • Man-made causes
  • Using land for agricultural purposes
  • Rapid urbanization
  • Procurement of wood for fuel and furniture

Consequences of Deforestation

  • Increase in the level of carbon dioxide in atmosphere, which leads to global warming
  • Lowering of ground water levels
  • Increase in pollution level and temperature
  • Decrease in fertility of soil and amount of rainfall
  • Increase in frequency of droughts and floods
  • Desertification- conversion of fertile lands into deserts.
Biodiversity
  • Biodiversity is the species richness of the biosphere. It is defined as the number and variety of life forms such as plants, animals and microorganisms in an area.
  • It supports all the essential living resources such as wild life, fisheries and forests.
  • Forests help in maintaining the delicate balance of nature.
  • Animals living in forests are called wild animals.
  • The plants found in a particular area are known as flora of that area.
  • The animals found in a particular area constitute fauna of that area.
  • Those species of plants and animals, which are found only in a particular area, are called endemic species.
  • Species is a group of organisms in population which are capable of interbreeding.
  • The animals, whose numbers are diminishing to a level that they might face extinction, are called endangered animals.
    For example: tiger, lion, and elephants
  • Project tiger was launched by the government of India to protect endangered tigers in their natural habitat.
  • The flora and fauna of a particular habitat can be protected through special protected areas.
Protected areas

A protected area is a clearly defined geographical space which is recognised and managed by government to achieve the long term conservation of nature, culture and preserve ecosystem.

Wildlife sanctuary

  • It is the place where wild animals are protected from hunting and are provided with suitable living conditions.
    For example: Madhumalai wildlife sanctuary in Tamil Nadu, Chilika bird sanctuary in Orissa, etc.

National parks

  • These are the areas reserved for wildlife. They are maintained and preserved by the government for the public to visit.
    For example: Ranthambore National Park in Rajasthan, Kanha National Park in Madhya Pradesh, etc.
  • Satpura National Park is the first reserve forest of India.
Biosphere Reserves
  • It is a large protected land for conservation of wild life, plant and animals resources, and the traditional life of the tribal groups living in the area.
    For example: Pachmarhi Biosphere Reserve and Nilgiri Biosphere Reserve in India.
Red Data Book
  • It is the source book maintained by IUCN (International Union for Conservation of Nature and Natural resources).
  •  It keeps a track record of various endangered species of plants and animals.
Migration
  • It is the movement of birds and animals from their original habitat to other places at a particular time.
  • Migratory birds fly to distant areas every year during a particular time because of climatic changes their original habitat becomes very cold and inhospitable lack of food availability
  • Numerous migratory birds including ducks, geese, flamingos, and cranes fly to India every year.
Recycling of paper
  • One ton of paper is made from about seventeen fully-grown trees.
  • Papers should be recycled and reused to conserve forest.
  • Each paper can be recycled three to seven times.
  • Recycling of paper saves trees, energy and water.
  • It prevents the release of harmful chemicals emitted during paper manufacturing in nature.
Reforestation
  • Restoring of destroyed forests by planting new trees is called reforestation.
  • It helps in checking environmental degradation.
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