Multiple Choice
What is the pioneer species typically involved in primary succession?
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48. Ecology
Introduction to Ecology
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On what basis is ecological succession classified into primary and secondary?
A
The type of species involved in the succession process
B
The presence or absence of soil at the start of succession
C
The rate at which succession occurs
D
The geographical location of the ecosystem
Verified step by step guidance1
Understand the concept of ecological succession, which is the process by which the structure of a biological community evolves over time.
Identify the two main types of ecological succession: primary succession and secondary succession.
Primary succession occurs in lifeless areas where there is no soil present initially, such as on bare rock after a volcanic eruption or a glacier retreat.
Secondary succession occurs in areas where a disturbance has destroyed a community but left the soil intact, such as after a forest fire, hurricane, or human activities like farming.
Classify ecological succession based on the presence or absence of soil at the start: primary succession starts without soil, while secondary succession starts with existing soil.
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