Question

A population of birds migrating to winter nesting grounds is blown off course by a late-season hurricane and ends up on an island that is uninhabited by any animal species. Which of the following represents a density-independent factor that will limit the population size?a) Freshwater springb) Abundant fruit treesc) Abundant berry bushesd) Heavily woodede) Nightly temperature dropping below freezing

Answer 1

e) Nightly temperature dropping below freezing

Step-by-step explanation:

• The factors that exert their influence on the population regardless of the density of the population are called as density independent factors.
• Example of these factors include weather and climate.
• In the given situation, it is the nightly temperature dropping below freezing is which is an example of density independent factor as the temperature is not dependent on the density of the population whereas other factors such as the availability of fruits, water in the spring, the number of berry bushes as well as wooded trees all depend on the density of the population as these will decrease with an increase in the population.
• The dnesity independent factors can lead to both an increase and decrease in the population of organisms.