A group of individuals of a single species living in the same general area.

(Of a population) The number of individuals per unit area or volume

The pattern of spacing among individuals within the boundaries of a population

A sampling technique used to estimate the size of animal populations

The influx of new individuals into a population from other areas

The movement of individuals out of a population

A behavior in which an animal defends a bounded physical space against encroachment by other individuals, usually of its own species

The study of changes over time in the vital statistics of populations, especially birth rates and death rates

An age-specific summary of the survival pattern of a population

A group of individuals of the same age in a population

A plot of the number of members of a cohort that are still alive at each age; one way to represent age-specific mortality

An age-specific summary of the reproductive rates in a population