Biology Term Two Review

An event, such as storm, fire, flood, drought, overgrazing or human activity, that changes a community and alters resource availability.

• disturbance

• succession

• weathering

• pioneer species

The breaking down of rocks and other materials on the Earth's surface.

• disturbance

• succession

• weathering

• pioneer species

The natural changes and the gradual replacement of organisms in communities and ecosystems after a disturbance.

• disturbance

• succession

• weathering

• pioneer species

The succession that occurs in an area that has not previously supported life.

• primary succession

• succession

• secondary succession

• marine succession

Succession following a disturbance that destroys a community without destroying the soil.

• primary succession

• succession

• secondary succession

• marine succession

pioneer species

• The first species to populate an area during succession.

• The number of different species in a community.

• Larger areas usually contain more species than smaller areas.

• As a general rule, the closer an ecosystem is to this place, the more species there are in a community.

species richness

• The first species to populate an area during succession.

• The number of different species in a community.

• Larger areas usually contain more species than smaller areas.

• As a general rule, the closer an ecosystem is to this place, the more species there are in a community.

species diversity

• The first species to populate an area during succession.

• The variety of different kinds of organisms that make up a community.

• Larger areas usually contain more species than smaller areas.

• As a general rule, the closer an ecosystem is to this place, the more species there are in a community.

latitude

• The first species to populate an area during succession.

• Affects the species richness and variety in an ecosystem.

• Larger areas usually contain more species than smaller areas.

• As a general rule, the closer an ecosystem is to this place, the more species there are in a community.

species-area effect

• The first species to populate an area during succession.

• Affects the species richness and variety in an ecosystem.

• Larger areas usually contain more species than smaller areas.

• As a general rule, the closer an ecosystem is to this place, the more species there are in a community.