What are the factor that affect population growth?

What are the factor that affect population growth?

Population Growth Rate The two main factors affecting population growth are the birth rate (b) and death rate (d). Population growth may also be affected by people coming into the population from somewhere else (immigration, i) or leaving the population for another area (emigration, e).

What factors decrease the number of individuals in a population?

The two factors that decrease the size of a population are mortality, which is the number of individual deaths in a population over a period of time, and emigration, which is the migration of an individual from a place.

What are the factors affecting population dynamics?

After all, population change is determined ultimately by only four factors: birth, death, immigration, and emigration. This apparent simplicity is deceptive. It is easy to underestimate the complexity of biotic and abiotic interactions in the natural world that can influence these four population parameters.

Which limiting factor would increase due to the number of individuals in a population?

Density-dependent factors include disease, competition, and predation. Density-dependant factors can have either a positive or a negative correlation to population size. With a positive relationship, these limiting factors increase with the size of the population and limit growth as population size increases.

What factors might influence the distribution of individuals in their environment?

Factors affecting distribution include climate, temperature, environmental factors such as soil, air, and water.

What are the factors that affect the population of a country?

Factors influencing population growth

• Economic development.
• Education.
• Quality of children.
• Welfare payments/State pensions.
• Social and cultural factors.
• Availability of family planning.
• Female labour market participation.
• Death rates – Level of medical provision.

What are some factors that affect population distribution?

The main factors determining population distribution are : climate, landforms, topography, soil, energy and mineral resources, accessibility like distance from sea coast, natural harbours, navigable rivers or canals, cultural factors, political boundaries, controls on migration and trade, government policies, types of …

What causes population fluctuation?

Most major hypotheses link regular fluctuations in population size to factors that are dependent on the density of the population, such as the availability of food or the activities of specialized predators, whose numbers track the abundance of their prey through population highs and lows.

What are three factors that can affect population size?

The four factors that can affect population size are fertility rate, mortality rate, immigration and emigration. Fertility rate and mortality rate are often grouped together as are immigration and emigration.

What are the four factors that affect population growth rate?

There are four major factors that affect population growth: Birth rate: The number of births per 1000 people in a year. This has a positive effect on population growth. This makes sense, as people being born adds to the population. Death rate: The number of deaths per 1000 people.

What is a density dependent factor that affects a population?

Density-dependent factor, also called regulating factor, in ecology, any force that affects the size of a population of living things in response to the density of the population (the number of individuals per unit area). Density-dependent factors often arise from biological phenomena, rather than from physical and chemical phenomena.

How do different limiting factors affect populations?

There are a number of limiting factors that always limit the growth of a population with the exception of humans whose population just keeps on growing. These factors are space, food, water, increased wastes, air, disease and population size. to add a comment.