Population Ecology

Front

What are the two factors that decrease population size?

Back

Emigration and Deaths.

Front

What is carrying capacity?

Back

The maximum number of individuals that the environment can support.

Front

What is a predator in population ecology?

Back

A species that helps to manage prey populations, controlling the ecosystem's producers.

Front

What are limiting factors in population growth?

Back

Environmental conditions that restrict the growth of a population.

Front

What is the difference between immigration and emigration?

Back

Immigration is the movement of individuals into a population, while emigration is the movement of individuals out of a population.

Front

What does a population graph indicate when it levels off?

Back

It indicates that the population has reached its carrying capacity.

Front

What role do keystone species play in an ecosystem?

Back

They have a disproportionately large effect on their environment relative to their abundance.

Front

What is the significance of the exponential growth phase in a population?

Back

It represents a period of rapid population increase when resources are abundant.

Front

How do density-dependent factors affect population size?

Back

They have a greater impact as the population density increases, such as competition and disease.

Front

What are density-independent factors?

Back

Environmental factors that affect population size regardless of the population's density, such as natural disasters.