In-situ Conservation:
- Involves protecting species in their natural habitats by preserving ecosystems.
- Examples: National parks, wildlife sanctuaries, biosphere reserves (e.g., Sundarbans for tigers).
- Advantages: Maintains natural ecological processes, supports genetic diversity.
- Challenges: Habitat destruction, human encroachment.
Ex-situ Conservation:
- Involves conserving species outside their natural habitats in controlled environments.
- Examples: Zoos, botanical gardens, seed banks, gene banks, cryopreservation (e.g., Kew Seed Bank for plant seeds).
- Advantages: Protects species from extinction, allows breeding programs.
- Challenges: Limited genetic diversity, high maintenance costs.