ECOLOGY /EVOLUTION

A series of progressive changes in the composition of an ecological community over time

• Climax Community

• Primary Succession

• Ecological Succession

• Species Richness

A measure of both species richness and relative number of species.

• Species diversity

• Species richness

• Biodiversity

• Keystone species

a change or disturbance of the environment most often caused by human influences and natural ecological processes.

• Environmental Change

• Evidence Of Evolution

• Trophic Level

• Natural Selection

an area that was previously occupied by living things is disturbed, then re-colonized following the disturbance.

• Pioneer species

• Ecological succession

• Climax community

• Secondary succession

newly exposed or newly formed rock is colonized by living things for the first time. Certain hardy plants and lichens with few soil requirements, called pioneer species, colonize the area first.

• Climax community

• Primary succession

• Ecological succession

• Secondary succession

A species that has a disproportionately large effect on community structure relative to their abundance.

• Pioneer Species

• Invasive Species

• Keystone Species

• Foundation Species

usually modify the environment so that it can support the other organisms that form the community.

• Pioneer Species

• Foundation Species

• Invasive Species

• Keystone Species

any change in the environment, that can modify the composition, structure, or function of an ecological community

• Ecosystem

• Secondary Succession

• Disturbance

• Biodiversity

Match the following

• the variety of organisms in an area, by species, genes, populations, and communities

• Biodiversity

• the total amount of living tissue in a trophic level.

• Dynamic Equilibrium

• the state or quality of being intricate or complicated

• Biomass

• a state of balance between continuing processes

• Complexity

• All the populations of all the different species that live together in a particular area

• Species richness

Non-native species whose introduction causes, or can cause harm in their new area

• Pioneer Species

• Invasive Species

• Keystone Species

• Foundation Species