D4.2.5—Keystone species Topic Practice
D4.2.5—Keystone species Topic Practice
Practise explaining why keystone species have large effects on community structure, biodiversity and ecosystem stability when present or removed.
How this is tested
- explain how a keystone species regulates other populations in an ecosystem
- link removal of a keystone species to biodiversity loss and community change
- apply examples such as beavers, Pisaster or cassowaries to ecosystem effects