Natural Vegetation and Wildlife

Natural Vegetation and Wildlife

• With over 47,000 plant species, India occupies tenth place in the world and fourth in Asia
in plant diversity.
• India has 89,000 species of animals as well as a rich variety of fish in its fresh and marine
waters.
• Plant community which grows naturally with no human help and is not disturbed by
humans for a long time is teemed as natural vegetation.
• Virgin vegetation which are purely Indian are known as endemic species and those which
have come from outside India are termed as exotic plants.
Relief
• The nature of land influences the type of vegetation.
• Different types of soils provide basis for different types of vegetation.
Climate
• The character and extent of vegetation are mainly determined by temperature along with
humidity in the air, precipitation and soil.
• Period of exposure to sunlight varies for different plants leading to their different rates of
growth.
• Areas of heavy rainfall have more dense vegetation as compared to other areas of less
rainfall.
• Forests are renewable resources and play a major role in enhancing the quality of the
environment.
• Vegetation in most parts of India has been modified at some places, or replaced or
degraded by human occupancy.
Ecosystem
• All the plants and animals in an area are interdependent and interrelated to each other in
their physical environment, thus forming an ecosystem.
• A very large ecosystem on land having distinct type of vegetation and animal life is called
a biome.
Types of Vegetation
• The major types of vegetation in India are Tropical Rainforests, Tropical Deciduous
Forests, Tropical Thorn Forests and Scrubs, Montane Forests and Mangrove Forests.
• With warm and wet climate all year round the Tropical Rainforests have luxurious trees,
shrubs and creepers.
• A large variety of animals are found in the rainforests.
• The most widespread forests of India — the Tropical Deciduous Forests — are also
known as the Monsoon Forests.
• On the basis of the availability of water, these forests are further divided into moist and
dry deciduous forests.
• The leaves of vegetation in Thorn Forests and Scrubs are mostly thick and small to
minimize evaporation and have succulent stems to conserve water.

• Montane forests have a succession of natural vegetation belts in the same order as we see
from the tropical to the Tundra region.
• Wet temperate forests are found between a height of 1000 and 2000 metres while
temperate grasslands are found at higher elevations.
• At 3600 metres above sea level temperate forests and grasslands give way to alpine
vegetation.
• The mangrove tidal forests are found in the areas of coasts influenced by tides.
• Dense mangroves are the common varieties with roots of the plants submerged
underwater.

Wildlife
• India has more than 1200 species of birds, 2500 species of fish and between 5 to 8 per
cent of the world’s amphibians, reptiles and mammals.
• India is the only country in the world that has both tigers and lions.
• The Himalayas have a large range of animals that survive the bitter cold.
• Every species of animal has a role to play in the ecosystem; hence conservation is
essential.
• Hunting and pollution is causing threat to animal species.
• To protect the flora and fauna of the country, the government has taken many steps.
• Fourteen biosphere reserves have been set up in the country to protect flora and fauna.
• 89 National Parks, 49 Wildlife Sanctuaries and Biosphere Reserves have been set up to
take care of natural heritage.

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