Class IX Chapter 5

1. Natural Vegetation and Wildlife
Social Studies: Chapter 5
Himangshu Sen
(PGT Geography)
22-09-2020

2. Introduction
• India is one of the 12 mega ‘bio-diversity’ countries of the world.
• 47,000 Plant Species (10th place in the world and 4th in Asia).
• 15,000 flowering species (6% of the world).
• 90,000 animal species.
• A rich variety of fish (both fresh and marine water).
Flora? Fauna?

3. Factors of Flora and Faunal
Diversity
• Relief:
a) Land
b) Soil
• Climate:
a) Temperature
b) Photoperiod (Sunlight)
c) Precipitation

4. Types of Vegetation
• Tropical Evergreen Forest
• Tropical Deciduous forest (Moist
deciduous and dry deciduous
forest)
• Tropical Thorn Forests and
Scrubs
• Montane Forest
• Mangrove Forests

5. Tropical Evergreen Forests
• Precipitation: More than 200 cm.
• Short dry season.
• Luxuriant vegetation includes: trees,
shrubs and creepers.
• Dominant species: ebony, mahogany,
rosewood, rubber and cinchona.
• Commonly found in: Western Ghats,
Andaman and Nicobar, Lakshadweep,
upper Assam and Tamilnadu coast.
• Common Wildlife Species:
Elephant, Monkey, Lemur, Deer,
One-Horned Rhinos and several
species of snails, birds and
snakes.

6. Tropical Deciduous Forests
(Widespread forests in India found in rainfall areas of : 200 cm and 70 cm.)
• Moist Deciduous (200 to 100 cm)
Dominant Species: Teak, Bamboos, Sal,
Shisham, Sandalwood, Khair, Arjun etc.
Found in: North-Eastern States, along
the foothills of Himalayas, West Odisha
and Chattisgarh.
• Dry Deciduous (100 to 70 cm)
Dominant Species: Teak, Sal, Peepal,
and Neem.
Found in: Parts of Peninsular plateau
and plains of Bihar and UP.
• Common Wildlife Species
Lion, Tiger, Pig, Deer, Elephant, Tortoise,
Lizards and Snakes etc.

7. The Thorn Forests and Scrubs
• Regions with less than 70 cm of
rainfall.
• Dominant species includes:
Acacias, Palm, Cactus etc.
• Found in: Semi-Arid areas of
Gujrat, Rajasthan, MP, UP, and
Chattisgarh.
• Leaves of the trees are thick and
small to minimise evaporation.
• Common Wildlife Species:
Rats, Mice, Rabbits, Fox, Wolf, Tiger,
Lion, wild Ass and Camels.

8. Montane Forests
(Vegetation types varies with increasing altitudes due to the temperature variation)
• 1000 mtr to 2000 mtr. (Wet Temperate)
Dominant Species: Evergreen broadleaf trees includes oaks chestnuts etc.
• 1500 mtr to 3000 mtr. (Temperate Forests)
Dominant Species: Coniferous tress like pine, deodar, silver fir, spruce etc.
• Above 3000 mtr. (Temperate Forests and Grasslands)
Dominant Species: Silver fir, Juniper, pines etc.
• Common Wildlife Species
Kashmiri stag, spotted dear, Tibetan
Antilope, snow leopard, bear, red panda,
squirrels, sheep and goat.

9. Mangrove Forests
• Found in the coasts influenced
by tides such as deltas of the
Ganga, the Mahanadi, The
Krishna, the Godavari and the
Kaveri.
• Dominant species: Sundori,
Keora, Coconut etc. • Common Wildlife Species
Royal Bengal Tiger, Turtles,
Crocodiles, Gharials and Snakes.

10. Wildlife
• 2,000 species of bird (13 % of World).
• 5 and 8 % of the World’s amphibians,
reptiles and mammals.

11. THANK YOU