Population Ecology

The number of individuals that the resources of an environment can normally and persistently support.

• carrying capacity
• birth rate
• uniform dispersion
• survivorship curve

A type of dispersion where individuals are clumped together such as a herd or school.

• clumped dispersion
• carrying capacity
• birth rate
• uniform dispersion

The number of deaths within a population.

• death rate
• clumped dispersion
• carrying capacity
• birth rate

Factors that affect the population only when the number of organisms reach a certain level including competition, predation, parasitism, and disease.

• density-dependent limiting factors
• death rate
• clumped dispersion
• carrying capacity

Factors that do not depend on how many individuals are in the population including unusual weather events, natural disasters and human activities.

• density-independent limiting factors
• density-dependent limiting factors
• death rate
• clumped dispersion

The movement of individuals out of a population.

• emigration
• density-independent limiting factors
• density-dependent limiting factors
• death rate

A dramatic increase in population over a short period of time.

• exponential growth
• emigration
• density-independent limiting factors
• density-dependent limiting factors

The movement of individuals into a population.

• immigration
• exponential growth
• emigration
• density-independent limiting factors

The environmental factor that is of predominant importance in restricting the size of a population.

• limiting factor
• immigration
• exponential growth
• emigration

Growth that takes place when a population's growth rate decreases as population size approaches a maximum imposed by limited resources, the carrying capacity.

• logistic growth
• limiting factor
• immigration
• exponential growth