K and r selection

Please excuse the audio, my neighbour's yappy dog makes many painful cameos in this video. It's incredibly irritating.

QCAA Biology, Unit 3

- define the term carrying capacity
- explain why the carrying capacity of a population is determined by limiting factors (biotic and abiotic)
- discuss the effect of changes within population-limiting factors on the carrying capacity of the ecosystem

- Guidance: Limiting factors of population growth should include: biotic factors - competition for resources, predation and disease
- biotic factors - competition for resources, predation and disease
- abiotic factors - space, availability of nutrients, pollution, natural disasters, extreme climatic events (drought, cyclones, global temperature change)