Ecological Succession Ch. 21 Selent. Succession The sequential growth of species in an area, or the...

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Ecological Ecological Succession Succession Ch. 21 Ch. 21 Selent Selent

Transcript of Ecological Succession Ch. 21 Selent. Succession The sequential growth of species in an area, or the...

Page 1: Ecological Succession Ch. 21 Selent. Succession The sequential growth of species in an area, or the progressive change in the species composition of an.

EcologicalEcologicalSuccessionSuccession

Ch. 21Ch. 21

SelentSelent

Page 2: Ecological Succession Ch. 21 Selent. Succession The sequential growth of species in an area, or the progressive change in the species composition of an.

SuccessionSuccession

• The sequential growth of species in an area, or the progressive change in the species composition of an ecosystem.

• Occurs in areas where new land is created or in areas where existing species have been destroyed.

Page 3: Ecological Succession Ch. 21 Selent. Succession The sequential growth of species in an area, or the progressive change in the species composition of an.
Page 4: Ecological Succession Ch. 21 Selent. Succession The sequential growth of species in an area, or the progressive change in the species composition of an.

Primary SuccessionPrimary Succession

• The development of a community in an area that has not previously supported life.

– Newly formed volcanic

islands– Land exposed by

receding glaciers– Exposed sand bars

Page 5: Ecological Succession Ch. 21 Selent. Succession The sequential growth of species in an area, or the progressive change in the species composition of an.

Glacial SuccessionGlacial Succession

Page 6: Ecological Succession Ch. 21 Selent. Succession The sequential growth of species in an area, or the progressive change in the species composition of an.

Secondary SuccessionSecondary Succession

• The sequential replacement of species in an area that once had a community that was lost after a disruption.

• Tilled farm land• Volcanic eruption• Forest Fire• Flood

Page 7: Ecological Succession Ch. 21 Selent. Succession The sequential growth of species in an area, or the progressive change in the species composition of an.

Farm Land SuccessionFarm Land Succession

Page 8: Ecological Succession Ch. 21 Selent. Succession The sequential growth of species in an area, or the progressive change in the species composition of an.
Page 9: Ecological Succession Ch. 21 Selent. Succession The sequential growth of species in an area, or the progressive change in the species composition of an.
Page 10: Ecological Succession Ch. 21 Selent. Succession The sequential growth of species in an area, or the progressive change in the species composition of an.
Page 11: Ecological Succession Ch. 21 Selent. Succession The sequential growth of species in an area, or the progressive change in the species composition of an.
Page 12: Ecological Succession Ch. 21 Selent. Succession The sequential growth of species in an area, or the progressive change in the species composition of an.
Page 13: Ecological Succession Ch. 21 Selent. Succession The sequential growth of species in an area, or the progressive change in the species composition of an.
Page 14: Ecological Succession Ch. 21 Selent. Succession The sequential growth of species in an area, or the progressive change in the species composition of an.

Pioneer SpeciesPioneer Species

• The first organisms to inhabit new areas.

• Generally small• Fast growing• Quick to reproduce

Page 15: Ecological Succession Ch. 21 Selent. Succession The sequential growth of species in an area, or the progressive change in the species composition of an.

More Pioneer SpeciesMore Pioneer Species

Page 16: Ecological Succession Ch. 21 Selent. Succession The sequential growth of species in an area, or the progressive change in the species composition of an.

Climax CommunityClimax Community

• The dominant stable species in an environment.