The diagram below shows the succession of communities from annual plants to hardwood trees in a specific area over a period of time.

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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2010 Question #4 (modified)
The diagram below shows the succession of communities from annual plants to
hardwood trees in a specific area over a period of time.
Annual
Plants
Shrubs
Perennial
Plants and
Grasses
Softwood
Trees - Pines
Hardwood
Trees
Time
1. Discuss the expected changes in biodiversity as the stages of succession
progress as shown in the diagram above.
2. Describe and explain three changes in abiotic conditions over time that lead
to the succession, as shown in the diagram.
3. For each of the disturbances found below this list, discuss the immediate and
long-term effects on ecosystem succession.
4. Identify two biotic and two abiotic factors and discuss how each could
influence the pattern of ecological succession.
5. Discuss the differences in plant diversity and explain how the changes affect
the animal species composition.
Disturbance #1: A volcano erupts, covering a 10 square kilometer portion of
a mature forest with lava.
Disturbance #2: A 10 square kilometer portion of a mature forest is clear-
cut.
Transcribed Image Text:2010 Question #4 (modified) The diagram below shows the succession of communities from annual plants to hardwood trees in a specific area over a period of time. Annual Plants Shrubs Perennial Plants and Grasses Softwood Trees - Pines Hardwood Trees Time 1. Discuss the expected changes in biodiversity as the stages of succession progress as shown in the diagram above. 2. Describe and explain three changes in abiotic conditions over time that lead to the succession, as shown in the diagram. 3. For each of the disturbances found below this list, discuss the immediate and long-term effects on ecosystem succession. 4. Identify two biotic and two abiotic factors and discuss how each could influence the pattern of ecological succession. 5. Discuss the differences in plant diversity and explain how the changes affect the animal species composition. Disturbance #1: A volcano erupts, covering a 10 square kilometer portion of a mature forest with lava. Disturbance #2: A 10 square kilometer portion of a mature forest is clear- cut.
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