Explain Why A Population Is Crucial In Order To Sustain A Suitable Environment

A population consists of a group of individuals belonging to the same species living within a certain area and can breed freely with each other. The population density is crucial in order to sustain a suitable environment for all individuals that each individual has enough space. It is controlled by specific factors called population parameters. These include natality (births), mortality (deaths) and dispersal (includes both immigration and emigration – entering and exiting out of a particular area). For a population to survive, individuals must tolerate the physical environment, obtain energy and nutrients, cope with competition for space, shelter, water and food, avoid predators and have access to mates.