Step 1: Understanding the Question:
The question asks for the alternative name or categorization of the conservation strategy known as "Circa Situm."
Step 2: Detailed Explanation:
• Conservation Modes:
- In-situ: Conserving species in their natural, original habitat (e.g., National Parks).
- Ex-situ: Conserving species outside their natural habitat (e.g., Botanical Gardens, Seed Banks).
• Circa Situm (C): This is a "middle-way" approach. It refers to the conservation of species in "human-modified" landscapes close to their original home, such as in farmers' fields, home gardens, or traditionally managed community forests.
• Hybrid Nature: Because it happens "near" (Circa) the original site but in a "managed" rather than "wild" environment, it shares characteristics of both In-situ and Ex-situ methods. Thus, it is often called "In-Ex-situ" conservation.
• Importance: It is highly important for maintaining the genetic diversity of "landraces" and economically useful trees that local communities have protected for centuries.
Step 3: Final Answer:
Circa Situm conservation is also referred to as In-Ex-situ conservation.