3.1 specialists and generalists

population size formula

N = (B+I) - (D+E)

population density

# of individuals per unit area

types of population distribution

random - no pattern, rare

uniform - evenly spread out

clumped - most common

generalist

an organism that uses a wide variety of resources

specialist

an organism that needs specific resources

generalist’s range of tolerance size

large

specialist’s range of tolerance size

narrow

generalist’s niche size

large

specialist’s niche size

small

generalist’s reproduction rate

high

specialist’s reproduction rate

slow

generalist’s competitiveness

minimal

specialist’s competitiveness

high

generalist’s role in succession

pioneer species

specialist’s role in succession

climax community

generalists - invasive or endangered?

invasive

specialists - invasive or endangered?

endangered