Benefits and costs of migration
- Created by: BethCuddington
- Created on: 11-12-16 20:18
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- Benefits and costs of migration
- FOOD
- Away from equator = longer days, more abundant food
- Chances for breeding
- EXAMPLE Butterflies migrate cyclically
- Survival
- EXAMPLE Butterflies - would freeze if they stayed put
- Extra reserves needed to make journey
- Interferences making this hard e.g. birds and shoe crabs and humans
- Risk of death (over water)
- Changes in physiology and metabolic
- FOOD
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