Biology › Section R · The biosphere, populations, and communities › Topic R.8
Community ecology
No population lives alone. Species compete, hunt, hide, cooperate and exploit one another, and those interactions decide which species share a place, how many of each there are, and how the whole community rebuilds after a disaster.
In this topic
- A web of interactions
- Niches, competition, and exclusion
- Predators, prey, and cycles
- Worked example: reading a predator-prey record
- Defences against predators and herbivores
- Mimicry
- Symbiosis: living closely together
- Foundation, keystone, and invasive species
- Worked example: richness versus diversity
- Succession: communities rebuilding
- Common mistakes to avoid
- Key takeaways
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