Ecological Succession
Keystone Species
Population
Services
Misc.
100

Gradual, sequential, replacement of one community by another

Ecological Succession

100

A species that has a large effect on its environment relative to its abundance

Keystone species

100

central cause of environmental crisis

population

100

process by which the environment produces resources

Ecosystem Services

100

messages in the public interest disseminated by the media without charge with the object of raising awareness

Public Service announcement

200

Occurs where there is no soil

Primary Succession

200

Eats sea urchins

Otters

200

harvesting species from the wild faster than natural populations can recover

overexploitation

200

control of climate and disease

Regulating

200

the acronym for anthropogenic change

HIPPOC

300

Late successional community that has reached equilibrium

Climax Community

300

Ecological role

Niche

300

exposure to toxic chemicals in the air, water or food

pollution

300

minerals and raw materials are examples of this type of service

Provisional

300

accidentally catching marine species while catching desired species

Bycatch

400

colonization of new sites by communities of organisms

Primary Succession

400

Organism eaten by sea urchins, that provides shelter for many small animals.

Sea kelp

400

 small amounts of pollutants become concentrated in organisms

biomagnification

400

sailing is an example of this type of service

Cultural

400

pioneer species

R

500

occurs after the abandonment of farmland

Secondary Succession

500

One species becomes two

Speciation

500

the largest cause of extinction

habitat destruction

500

autotrophs producing food is an example of this type of service

Supporting

500

mercury building up in fish tissue is an example of this

Biomagnification

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