Explain the four factors that produce

changes in population size. Which factors are affecting the population size?
What do you predict will happen to the nutria population after all the land is depleted of
the nutrias’ food resource?

Reproduction, mortality (average life span; epidemics; war and natural disasters; predators), immigration and emigration all affect population size

What do you think would happen to any animal population without a food supply?

what do you think will happen to nutira food resource and explain the factor of produce change in population size and there effective population size.

The four factors that can influence changes in population size are birth rate, death rate, immigration, and emigration.

1. Birth rate: The number of births that occur within a population over a certain period of time. This factor increases the population size as more individuals are added through reproduction.

2. Death rate: The number of deaths that occur within a population over a certain period of time. This factor decreases the population size as individuals die or pass away.

3. Immigration: The movement of individuals into a population from another population or area. Immigration can increase the population size as new members are added to the population.

4. Emigration: The movement of individuals out of a population to another population or area. Emigration can decrease the population size as individuals leave the population.

To determine which factors are affecting the population size, you need to collect data on the birth rate, death rate, immigration, and emigration of the nutria population. By analyzing this data, you can identify which factors have a significant impact on the population size.

In the case of the nutria population, if all the land is depleted of their food resource, it is likely that their population size will decrease. The limited availability of food will lead to a decrease in the birth rate as less reproductive success is expected. Additionally, the death rate may increase due to malnutrition and starvation. Nutrias may also try to emigrate to areas with more food resources, further reducing the population size. Therefore, the prediction would be a decline in the nutria population after the depletion of their food resource.