Population Ecology

1. Size (N)
2. Density (N per unit area)
3. Dispersion
4. Demography
5. Genetic characteristics

Least common, position of each individual is independent of other individuals

Individuals gather in patches

Individuals are evenly spaced, influenced by social things like territory

Factors that affect small populations like inbreeding and genetic drift can drive a population to extinction

Genetic variation within populations between populations

High survivorship for juveniles, lower for older

Uniform survivorship for each age group

Low survivorship for juveniles, higher for older

Individuals have a restricted amount of time and energy, cannot maximize all physiological aspects

Birth rate - death rate + immigration rate - emigration rate

unrestricted growth of a population of organisms, occurring when resources in its habitat are unlimited

Competition for resources, disease and parasitism, predation, toxic waste accumulation, social behavior