Question

Which of the following is Ex situ conservation method?

• A. Protected area
• B. Ranching
• C. Live gene bank
• D. Biosphere reserve

Hint:

If the conservation happens where the animal "lives" naturally (Parks, Reserves, Sanctuaries), it is In situ.
If it happens where "humans" keep them (Zoos, Gene banks, Seed banks, Aquaria), it is Ex situ.

Answer 1

The Correct Option is C

Step 1: Understanding the Question:
The question asks to identify an "Ex situ" conservation method. Conservation is broadly classified into two types:
1. In situ: Conservation within the natural habitat.
2. Ex situ: Conservation outside the natural habitat.
Detailed Explanation:

• Analysis of Options:
• Protected area (A): National parks, sanctuaries, etc., where the ecosystem is preserved in its natural state. This is In situ.

• Ranching (B): Involves collecting young from the wild, growing them in controlled environments, and releasing them or harvesting them. While it has a controlled phase, it relies on the natural environment and is usually part of In situ stock enhancement.

• Live Gene Bank (C): This involves maintaining breeding populations of threatened species in artificial environments like hatcheries or specialized tanks away from their natural homes. This is a classic Ex situ method.

• Biosphere reserve (D): Large areas of natural habitat protected by law. This is In situ.

• Significance of Ex situ: It serves as a safety net when the natural habitat is too degraded for the species to survive. Methods include cryopreservation (gamete banks), aquaria, and live gene banks.

Step 2: Final Answer:
Live gene bank is an Ex situ conservation method.