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Q4.4. A wildlife biologist has adopted a number of techniques to protect the Willow Flycatcher, a bird that often nests and feeds in willows. Some techniques reflect top-down while some reflect bottom-up control. Which of the following approaches demonstrates her understanding of how top-down forces affect community dynamics? O The biologist attempts to increase food availability by reintroducing beaver. She hypothesizes that beaver will raise the water table, stimulating the growth of willow, which will result in an increase in insect abundance, giving flycatchers more food. O Willow Flycatchers can lose eggs to squirrels, weasels, and other predators. The biologist attempts to protect nests by putting metal collars around the base of the willows that keep ground predators from climbing up to reach the nests. O Both approaches rely on top-down forces. ONeither approach relies on top-down forces. Submit

Q4.4. A wildlife biologist has adopted a number of techniques to protect the Willow Flycatcher, a bird that often nests and feeds in willows. Some techniques reflect top-down while some reflect bottom-up control. Which of the following approaches demonstrates her understanding of how top-down forces affect community dynamics? O The biologist attempts to increase food availability by reintroducing beaver. She hypothesizes that beaver will raise the water table, stimulating the growth of willow, which will result in an increase in insect abundance, giving flycatchers more food. O Willow Flycatchers can lose eggs to squirrels, weasels, and other predators. The biologist attempts to protect nests by putting metal collars around the base of the willows that keep ground predators from climbing up to reach the nests. O Both approaches rely on top-down forces. ONeither approach relies on top-down forces. Submit

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Q4.4. A wildlife biologist has adopted a number of techniques to protect the Willow Flycatcher, a bird that often nests and feeds in willows. Some techniques reflect top-down while some reflect bottom-up control. Which of the following approaches demonstrates her understanding of how top-down forces affect community dynamics? O The biologist attempts to increase food availability by reintroducing beaver. She hypothesizes that beaver will raise the water table, stimulating the growth of willow, which will result in an increase in insect abundance, giving flycatchers more food. O Willow Flycatchers can lose eggs to squirrels, weasels, and other predators. The biologist attempts to protect nests by putting metal collars around the base of the willows that keep ground predators from climbing up to reach the nests. Both approaches rely on top-down forces. ONeither approach relies on top-down forces. Submit
Transcribed Image Text:Q4.4. A wildlife biologist has adopted a number of techniques to protect the Willow Flycatcher, a bird that often nests and feeds in willows. Some techniques reflect top-down while some reflect bottom-up control. Which of the following approaches demonstrates her understanding of how top-down forces affect community dynamics? O The biologist attempts to increase food availability by reintroducing beaver. She hypothesizes that beaver will raise the water table, stimulating the growth of willow, which will result in an increase in insect abundance, giving flycatchers more food. O Willow Flycatchers can lose eggs to squirrels, weasels, and other predators. The biologist attempts to protect nests by putting metal collars around the base of the willows that keep ground predators from climbing up to reach the nests. Both approaches rely on top-down forces. ONeither approach relies on top-down forces. Submit
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