Population Ecology - Mt. San Antonio College

Population Ecology - Mt. San Antonio College

Population Ecology Population A group of individuals of a single species in a given area

Density Dispersion Clumped

Uniform Random Demography

The study of statistics that affect population size Life Table

Survivorship Curve Reproductive Table

Life Histories Semelparity Iteroparity Population Growth

Exponential Growth dN/dt = rmaxN dN = change in number dt = change in time rmax = intrinsic growth

rate N = number of ind. Population Growth Logistic Growth dN/dt = rmaxN (K-N)

K dN = change in number dt = change in time rmax = intrinsic growth rate

N = number of ind. K = Carrying Capacity Logistic Growth

Life Histories r selected Large number of offspring No parental care

Small in size Short lifespan K selected Small number of

offspring Large amounts of parental care Large in size Longer lifespan

Population Limiting Factors Density Independent Natural disasters

Density Dependent Disease Human Population and ZPG Which type of growth

do humans follow? What is ZPG?

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