r-strategist - small, short life-span, many offspring
k-strategist - large, long life span, few offspring
What are the characteristics of r- and k-strategists?
population density, spatial distribution, and growth rate
What are three characteristics that all populations have?
abiotic factors such as weather (drought, flooding, tornadoes, hurricanes, or extreme heat/cold)
Density-independent factors usually include...
logistic: S shaped; exponential: J shaped
What shape is a logistic or an exponential population growth?
randomly, uniformly, or in clumps
Populations tend to be distributed _______, _______, or in ______.
spatial distribution- the way organisms are dispersed in their environment.
population density- the number of organisms per unit area
population growth rate- explains how fast a given population grows
Compare and contrast spatial distribution, population density, and population growth rate.