Bushman Ecology Quiz

Population Growth Rate Formula (r)

r = (births - deaths)/N

Intrinsic Rate of Growth

Maximum reproductive rate at biotic potential.

Characteristics of r-selected Species

Short lifespans, many offspring, little parental care.

Characteristics of k-selected Species

Long lifespans, a lot of parental care.

competitive exclusion principle

No two species can coexist if they occupy the same niche.

parasitoid

An insect that lays eggs inside a host; larvae consume the host.

Grainivores

Feeds on nuts and grains

Frugivore

Feeds on fruit

Grazers

feed on grasses

Browsers

feed on leaves

climax community

Stable end stage, a mature ecological community that has reached a final stage of ecological succession.

Marginal habitats

Previously uninhabited and bare areas. No competition.