Remigration is

Options

A. Migration outside the home range
B. One time migration with no return
C. Return migration
D. Return by next generation.

Answer

### Step-by-Step Solution:

1. **Understanding Migration**:
- Migration refers to the movement of a section of a population from one area to another. This can occur for various reasons, such as searching for food, breeding, or escaping unfavorable conditions.

2. **Defining Remigration**:
- Remigration specifically refers to the phenomenon where individuals or groups return to their original habitat after having migrated away. This is an important concept in ecology and population dynamics.

3. **Analyzing the Options**:
- **Option 1**: "Migration outside the home range" - This describes a movement away from the original habitat but does not imply a return, so it is incorrect.
- **Option 2**: "One-time migration with no return" - This suggests a permanent move without the intention of returning, which does not align with the definition of remigration, making it incorrect.
- **Option 3**: "Return migration" - This option accurately describes remigration, as it indicates that the population is returning to its original habitat. This is the correct answer.
- **Option 4**: "Return by the next generation" - This implies that the return is not by the original individuals but rather by their offspring, which does not fit the definition of remigration, thus it is incorrect.

4. **Conclusion**:
- Based on the definitions and analysis of the options, the correct answer to the question "Remigration is" is **Option 3: Return migration**.