Question

What do you understand by the term migration?

Answer 1

Migration:

1. The movement of an organism or a group of organisms from one area to another at a specific time each year is referred to as migration.
2. Organisms move from one location to another to avoid harsh environmental circumstances or to reproduce.

Importance of migration:

1. Migration is important as animals migrate generally in groups for protection and to find better places for food.
2. To find good habitat, organisms migrate.
3. Due to unfavorable environmental conditions, such as high temperatures or high cold, animals tend to migrate.
4. A group of species that migrate contribute to the top-down effect.
5. A top-down effect means, an influence from a higher trophic level causes low trophic level organisms also to follow them.