Chapter 17 Flashcards
Mortality
The number of individuals leaving the population by death per thousand individuals in the population.
Ecology
The branch of biology that studies the relationships between organisms and their environment.
Natality
The number of individuals entering the population by reproduction per thousand individuals in the population.
Population
A group of organisms of the same species located in the same place at the same time.
The maximum sustainable population for an area.
Carrying Capacity
Population limiting factors that become more effective as the size of the population increases.
Density Dependent Factors
A graph of the change in population size over time.
Population Growth Curve
The portion of some population growth curves in which the size of the population declines.
Death Phase
The period of time during population growth when the population increases at an accelerating rate.
Exponential Growth Phase
The period of time following colonizations when a population remains small or increases slowly.
Lag Phase
The period of time during population growth when the number of individuals entering a population and the number leaving the population are equal, resulting in a stable population size.
Stable Equilibrium Phase
Environmental influences that limit population growth.
Limiting Factors
The number of organisms of a species per unit area.
Population Density
The theoretical maximum rate of reproduction.
Reproductive Capacity
