Population Growth and Resource Availability (3.5)

Size (N)

total # of individuals  in a given area at a given time

Density

number of individuals/area

Distribution

how individuals in a population are spaced out compared to each other

Sex Ratio

ratio of males to females

Density-Dependent-Factors

factors that influence population growth based on size

Density-Independent Factors

factors that influence population growth independence of their size.

________ is a density dependent factor. (also a limiting resource)

Food

Biotic Potential

Max potential growth rate with no limiting resources

Logistic growth

initial rapid growth, then limiting factors limit population

Biotic potential #2

exponential growth