QQuestionEnvironmental Science
QuestionEnvironmental Science
Which of the following is the best definition of a trophic cascade?
A. Adding or removing one species causes significant changes in the population dynamics of other species in the community.
B. Adding or removing species causes a collapse of the food web for that community.
C. Significantly changing the population size of a species at one trophic level causes significant changes in the population dynamics of populations that do not directly interact with this species.
D. Significantly changing the population size of one species causes significant changes in the population dynamics of other species.
E. None of these definitions are accurate.
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Answer
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Step 1I'll solve this ecology problem step by step:
Step 2: Understand the concept of a trophic cascade
A trophic cascade is a key ecological concept that describes how changes in the population of one species can have ripple effects through different trophic levels in an ecosystem, even when the species are not directly interacting.
Final Answer
The key insight is that trophic cascades demonstrate the complex, interconnected nature of ecological systems, where changes in one population can have far-reaching, non-intuitive consequences for other species in the ecosystem.
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