Q4.6. Which of the following statements about functional responses is FALSE? A)T
ID: 167498 • Letter: Q
Question
Q4.6. Which of the following statements about functional responses is FALSE?
A)Type I functional responses are not very common in nature because most predators experience a handling time for each prey item.
B)For predators with a type II functional response, handling time exceeds search time at high prey densities.
C)Type III functional responses occur for generalist predators who switch food sources when one prey species' density is low.
D)Because functional responses of predators occur at the individual level, they do not affect overall population dynamics.
FUNCTIONAL RESPONSES Prey Density Functional responses to predation: average prey caught vs. prey density.Explanation / Answer
answer (D) is false functional response do affect the population dynamics. in apopulation where risk of being eaten is less when food density increases due to maximum consumption rate in type 1 response, in this situation there is an inverse density-dependence in which food items in lower-density populations are at greater risk, and the effect of the type I response is destabilizing to population dynamics. similary, when risk of being eaten is increased with increase in food density, population stabilizes in type 1 responses. thus, function response affects population dynamics.
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