Introduction to Ecology (Population Ecology)

Front

What is the logistic growth model?

Back

A growth model that describes how a population grows rapidly at first and then levels off as it approaches the carrying capacity of its environment.

Front

What is the exponential growth model?

Back

A growth model that describes how a population grows continuously without any limits, resulting in a J-shaped curve.

Front

What is carrying capacity?

Back

The maximum number of individuals of a species that an environment can sustainably support.

Front

What is emigration?

Back

The movement of individuals out of a population.

Front

What is immigration?

Back

The movement of individuals into a population.

Front

What is a population?

Back

A group of individuals of the same species living in a specific area at the same time.

Front

What factors can limit population growth?

Back

Resources availability, predation, disease, and environmental conditions.

Front

What is a density-dependent factor?

Back

A factor that affects population growth in relation to the population density, such as competition and disease.

Front

What is a density-independent factor?

Back

A factor that affects population growth regardless of the population density, such as natural disasters.

Front

What is a trophic cascade?

Back

An ecological phenomenon triggered by the addition or removal of top predators, which causes changes in the population sizes of species at lower trophic levels.