AP Environmental Science / Unit 2: The Living World: Biodiversity
2.3 Island Biogeography
Notes
Islands (or habitat islands like parks) have more species when they are larger and closer to the mainland.
- Island species often evolve to specialize; invasive species can be very harmful.
Practice
Which island will likely have the most species?
More habitat, more colonists.
Habitat fragmentation turns forests into:
Same principles apply.
Island species are especially hurt by invasive species because:
No defenses.
Ready for more? Take the Unit 2 test.