Ecological Succession
Biology ⇒ Ecology and Environment
Ecological Succession starts at 9 and continues till grade 12.
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See sample questions for grade 11
Describe how disturbances such as fire can benefit an ecosystem through succession.
Describe how human intervention can alter the course of ecological succession.
Describe the main difference between primary and secondary succession.
Describe the role of animals in the process of ecological succession.
Explain the difference between autogenic and allogenic succession.
Explain why biodiversity tends to increase during the process of succession.
Explain why secondary succession is generally faster than primary succession.
Explain why soil formation is necessary for primary succession.
What is ecological succession?
A volcanic eruption creates a new island with no existing life. Over several decades, the following sequence of communities is observed: (1) Lichens and mosses, (2) Grasses and small herbs, (3) Shrubs, (4) Pine trees, (5) Oak and maple trees. Based on this scenario, explain the processes that drive the transition from one community to the next.
Compare and contrast the roles of disturbance frequency and disturbance intensity in shaping the trajectory of ecological succession.
Describe how the concept of 'relay floristics' differs from 'initial floristics' in the context of ecological succession.
Discuss how facilitation, inhibition, and tolerance models explain the mechanisms of species replacement during ecological succession.
Explain the concept of sere in ecological succession and describe how different seres contribute to the development of a climax community.
