Multiple Choice
Which of the following best describes the difference between primary and secondary succession?
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48. Ecology
Introduction to Ecology
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What is the primary function of a pioneer species in an ecosystem?
A
To maintain the population of herbivores
B
To increase biodiversity by introducing new species
C
To initiate ecological succession by colonizing barren environments
D
To establish a stable climax community
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.
Recognize that pioneer species are the first organisms to colonize a barren or disturbed environment, such as a newly formed volcanic island or a region cleared by a wildfire.
Identify the characteristics of pioneer species, which often include being hardy, fast-growing, and capable of surviving in harsh conditions with minimal resources.
Acknowledge that the primary function of pioneer species is to initiate ecological succession by creating conditions that are more favorable for other species to inhabit the area.
Realize that as pioneer species modify the environment (e.g., by breaking down rock into soil), they pave the way for more complex communities to develop, eventually leading to a stable climax community.
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