Question

Which of the following statements explains how migration can affect population size? (3 points)

Immigration of a new population only leads to detrimental effects on the native species.

Emigration of a population will cause the other native populations to emigrate, as well.

Immigration of a new population higher predators could lead to an increase in the population of the producers.

Emigration of a native population higher predators will lead to an increase in the population of the producers.

Answer 1

Emigration of predator populations typically results in an increased population of producers, while immigration can increase population size and genetic diversity.

Step-by-step explanation:

The correct statement that explains how migration can affect population size is 'Emigration of a native population higher predators will lead to an increase in the population of the producers.' This phenomenon is often observed in ecological systems where the removal or reduction of a predator population through emigration can result in a surge in the numbers of prey species, particularly the producers at the base of the food web. When predators emigrate, they leave behind an ecosystem with fewer agents of control for the populations of herbivores, which may lead to an increase in plant and other producers' numbers. Another aspect to consider is that immigration can contribute to genetic diversity through genetic drift or simply increase a population's size if the incoming organisms share similar characteristics with the existing population.