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ES1110_Week2_EcologyLabQuestions

ES1110_Week2_EcologyLabQuestions

Q Include your answers to the Ecology Laboratory questions on this sheet and submit this file. Producers – Part 1 1. (3 pts.) Did you find that one producer was dominant? Why might one producer be dominant over another? Producers – Part 2 2. (3 pts.) Does adding the herbivore result in a more equal field or is one producer still dominant over the other? 3. (2 pts.) How do producer population numbers change with the presence of a herbivore compared to the primary-colonizer-only model (no herbivores present)? 4. (2 pts.) What would happen to this imaginary ecosystem if the producers were to die out in terms of energy transfer between trophic levels? 5. (3 pts.) Did any of the species increase in number? What could account for this increase? Which species decreased in number and what might account for this decrease?

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Answer: Yes plant A was dominant. Answer: Yes, the addition of herbivore A resulted in more equal field. Answer: When no herbivore was present, plant A was dominant. With the addition of herbivores, the number of plant A decreased. So, there is an inversely proportional relation between the herbivore and the plant A.