Lesson 6.2: Biodiversity – Flora, Fauna, National Parks, Biosphere Reserves
Biodiversity refers to the variety of life forms on Earth, including plants, animals, and microorganisms. It is crucial for ecosystem stability, human survival, and environmental balance.
Flora (Plant Life):
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Tropical Rainforests: Dense forests, high species diversity, e.g., Western Ghats, Andaman & Nicobar Islands.
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Temperate & Coniferous Forests: Oaks, pines, and firs in Himalayan regions.
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Medicinal Plants: Neem, Tulsi, Aloe Vera – used in traditional medicine.
Fauna (Animal Life):
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Wildlife Diversity: Mammals, birds, reptiles, amphibians.
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Endangered Species: Bengal Tiger, Asiatic Lion, Snow Leopard.
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Conservation Programs: Project Tiger, Project Elephant, wildlife sanctuaries.
National Parks & Wildlife Sanctuaries:
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Purpose: Protect habitats and biodiversity.
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Famous Examples: Jim Corbett NP, Kaziranga NP, Sundarbans NP.
Biosphere Reserves:
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Definition: Protected areas promoting conservation and sustainable development.
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Examples: Nilgiri, Sunderbans, Gulf of Mannar.
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UNESCO Recognition: Many Indian biosphere reserves are recognized globally for ecological significance.
Key Points for Revision:
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Flora and fauna diversity in India
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Endangered species and conservation projects
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National parks, wildlife sanctuaries, and biosphere reserves
Example Question (Prelims Practice):
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“Which project aims at conserving the Bengal Tiger?” → Project Tiger
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“Which Indian biosphere reserve is recognized for mangrove ecosystem?” → Sundarbans
