Overview
Recognise population as an integral part of the community Explain that different population of organisms make up a community. List factors that may affect changes in population Explain the term dynamic equilibrium as related to different population in a climax community Recognise the approximately constant numbers of individuals in a population despite fluctuation List some family planning methods in human community.
What you'll learn
- Factors affecting a population: (i) Abiotic - light, space, heat, water, etc. (ii) Biotic - food, competition (interspecific and intraspecific), mortality, parasites, predators, etc.
- Dynamic equilibrium in nature and factors that maintain it. (i) Density independent factors like the availability of food. (ii) Density-dependent factors e.g. natural disasters.
- Family planning: Natural and artificial methods used by man to control his population.