Also termed density. The number of individuals of a given species per unit area.
Stage of population growth indicated by the start of the upward-turning section of a curve denoting population growth.
Stabilised size reached by a given population in a given habitat.
Population not subject to migration.
A group of populations living and interacting with one another in a particular environment.
Stage of population growth indicated by the flattening out of an S-shaped curve as the carrying capacity is reached.
Also termed abundance. The number of indivuals of a given species per unit area.
Factors whose impact on members of a population is dependent on the size of the population.
Factors whose impact on members of a population is not affected by population size.
Pattern of spread of members of a population. May be uniform, clumped or random.
The limiting effect of environmental conditions on the growth of a population.
Population growth whereby the rate of population growth increases as the size of the population increases.
Plot of population size over time under conditions of exponential growth.
Species characterised by less frequent breeding and fewer offspring. Typically found in stable environments where carrying capacity has or is about to be reached.
Stage of population growthindicated by the initial flat section of a curve. In this period population size is small and growth rates are low.
Model of population growth whereby growth eventualy slows as the population reaches carrying capacity.
Rate of immigration into and emigration out of a given population.
Population subject to migration.
A group of individuals of the same species occupying a particular geographic area.
The scientific study of changes in population size over time.
Any of a group of small, usually rectangular plots of land arranged for close study of the distribution of plants or animals in an area.
Species which breed often and produce large numbers of offspring. Typically found where conditions are untable.
Plot of population size over time under conditions where resource availability limits population size to the carrying capacity of the habitat.
Technique used to estimate population size, based on examination of part of a given population.
The number of populations within a given community.
Also called a true census. A count of all members of a species in a given area.
A sampling technique whereby various species present at regular intervals along a line crossing the area of study are recorded.
A total count of all members of a species in a given population. Also called a total count.
Zero population growth
A stable population with no net growth. Birth and immigration rates are matched by deaths and emigration.