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Lesson 46

Patterns of Population Dynamics

QuestionAnswer
Birth Rate the ratio between births and individuals of a population at a specified time
Death Rate the ratio between deaths and individuals of a population at a specified time
Intrinsic Rate of Increase birth rate minus the death rate of a population
Life History age of sexual maturity, age of death, and age of other significant events that affect reproduction
Age Structure relative proportion of the population that fits into each age group
Carrying Capacity maximum population size that the environment can sustain on a consistent basis
Law of the Minimum population growth is limited by the resource in the shortest supply
Density-Independent Regulators factors that limit population but which are not affected by population density- usually physical factors
Density-Dependent Regulators factors that limit population growth based on the population density- usually biological factors
Local Extinction disappearance of a species within a specified area
Species Extinction total disappearance of an entire species
Minimum Viable Population smallest number of individuals needed to avoid extinction
Secondary Extinction the loss of animal or plant species resulting directly or indirectly from the abnormal presence or the absence of another species
Created by: ecotteacher
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