Populations Mr. Haase
What is a population? All members of a species living in the same place at the same time
Properties of Populations Density- number of individuals per unit area Dispersion- arrangement of individuals in given space
How do you measure population growth? Change in Population size = Births - Deaths
Reproductive Potential Maximum number of offspring each member of a population can produce
Exponential Growth
What limits overpopulation? Carrying capacity- maximum population an ecosystem can support
Factors that limit population growth Resource Limits Competition
Population Regulation Density Dependant When deaths occur more quickly in crowded populations Examples: Black Plague Pine Beetle Density Independent Deaths occur regardless of population density Examples: Severe Weather Natural Disasters