O Type II, because it is the only type that plateaus at high prey densities O Type III, because it avoids snails at low densities, and switches to snails when they become more abundant O Type II, because it avoids snails at low densities, and switches to snails when they become more abundant O Type III, because it is the only type that plateaus at high prey densities Type I, because other functional responses are uncommon in nature

Biology Today and Tomorrow without Physiology (MindTap Course List)
5th Edition
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Author:Cecie Starr, Christine Evers, Lisa Starr
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Chapter16: Population Ecology
Section: Chapter Questions
Problem 6SQ
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of
20
40
60
80
100
snails per cubic meter
Type II, because it is the only type that plateaus at high prey densities
Type IlI, because it avoids snails at low densities, and switches to snails when
they become more abundant
Type II, because it avoids snails at low densities, and switches to snails when
they become more abundant
O Type III, because it is the only type that plateaus at high prey densities
Type I, because other functional responses are uncommon in nature
Transcribed Image Text:of 20 40 60 80 100 snails per cubic meter Type II, because it is the only type that plateaus at high prey densities Type IlI, because it avoids snails at low densities, and switches to snails when they become more abundant Type II, because it avoids snails at low densities, and switches to snails when they become more abundant O Type III, because it is the only type that plateaus at high prey densities Type I, because other functional responses are uncommon in nature
The yellow perch is a fish found in freshwater lakes. It is a generalist predator,
consuming a variety of prey species, including crayfish, small fish, insect larvae and
snails. You examine the predation rate of yellow perch on snails, and obtain the
following data. Identify the type of functional response, and a plausible reason for
why it has that type of response.
60-
40-
20-
Perch Predation Rate
Transcribed Image Text:The yellow perch is a fish found in freshwater lakes. It is a generalist predator, consuming a variety of prey species, including crayfish, small fish, insect larvae and snails. You examine the predation rate of yellow perch on snails, and obtain the following data. Identify the type of functional response, and a plausible reason for why it has that type of response. 60- 40- 20- Perch Predation Rate
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