Use the following simple predator-prey relationships to answer the questions about the system below (assume no other interactions exist in this system). Mice eat grain grown by a farmer before it can be harvested. The mice are consumed by several species of snakes, which themselves are consumed by hawks. A. If the population of snakes was suddenly wiped out by disease, explain the short-term effects on the grain, mice, and hawk populations, and why these effects would be observed. B. If the population of snakes were suddenly wiped out by disease, explain the ong-term effects on the grain, mice, and hawk populations, and why these effects would be observed. C. Local farmers would like to use a biological, as opposed to a chemical, means to protect their crop. What would be the most effective way for farmers in this area to protect their grain crop naturally? Why? Edit View Insert Format Tools Table 12pt Paragraph BI U A 2 T² :

Use the following simple predator-prey relationships to answer the questions about the system below (assume no other interactions exist in this system). Mice eat grain grown by a farmer before it can be harvested. The mice are consumed by several species of snakes, which themselves are consumed by hawks. A. If the population of snakes was suddenly wiped out by disease, explain the short-term effects on the grain, mice, and hawk populations, and why these effects would be observed. B. If the population of snakes were suddenly wiped out by disease, explain the ong-term effects on the grain, mice, and hawk populations, and why these effects would be observed. C. Local farmers would like to use a biological, as opposed to a chemical, means to protect their crop. What would be the most effective way for farmers in this area to protect their grain crop naturally? Why? Edit View Insert Format Tools Table 12pt Paragraph BI U A 2 T² :

Human Biology (MindTap Course List)

11th Edition

ISBN:9781305112100

Author:Cecie Starr, Beverly McMillan

Publisher:Cecie Starr, Beverly McMillan

Chapter24: Principles Of Ecology

Section: Chapter Questions

Problem 4SQ

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Similar questions

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
Which of the following rows correctly describes the difference between predation and parasitism? Select one: a. Predation Parasitism The host species is killed to benefit the other species. The host species is not killed, but its life is barely sustained to benefit the other species. b. Predation Parasitism The host species is unharmed, and its life is sustained to benefit the other species. The host species killed or barely left alive to benefit the other species. c. Predation Parasitism The host species is not killed, but its life is barely sustained to benefit the other species. The host species is not killed, but its life is barely sustained to benefit the other species. d. Predation Parasitism The host species killed or barely left alive to benefit the other species. The host species is unharmed, and its life is sustained to benefit the other species.
Draw and label graphs (including zero-growth isoclines) showing the predicted behavior of the Lotka-Volterra predator/prey equations if we assume prey growth follows and exponential growth model. Show how the graphs would change of the prey follow a logistic growth model.
Define predation. How does the predator-prey relationship differ from the parasite-host relationship? Why is the evolutionary race be-tween predator and prey one that the predator cannot afford to win?
What is predation? explain and provide example.
Answer the following thoroughly and add comments as to how this topic affects humanity (and you) and give examples. c) Optimal foraging strategies
The relationship between predator and prey populations has been studied by computer simulation using equations which form part of a mathematical model devised by Lotka and Volterra. The data in Table 6.10 show the results of such a simulation when the prey population begins with 20 individuals and the predator population begins with six individuals. 1.Explain why the peaks in the predator population occur after those in the prey population. 2. This simulation assumes one prey species and one predator species in an imaginary ecosystem and is based on mathematical equations. Why is it likely to be too simplistic to describe accurately what happens in nature?
Predators manage the population size of their prey through two methods: consumptive effects and non consumptive effects. What are the consequences of consumptive impacts on predator population? Use an example. What are consequences of non consumptive impacts on prey populations? Use an example.
If the rate of some process is governed by the abundance of prey individuals, we say that it is prey-dependent. Give some examples of prey-dependent processes.
Name two other environmental factors which can affect the success of a predator.
Researchers have suggested that predators could actually increase the population density of a prey species heavily infested by a pathogenic parasite. Explain how predation could lead to population increases in the prey population.
Interpret the following graphs: In the graphs, the number of days are 18.. 1 day is equal to 60 sec. For the first graph, days are taken on x-axis. The mean foraging times are taken on y-axis. For the 2nd graph, percentage of prey caught during first half of winter(1-6days) were taken on x-axis and percentage of prey caught during 2nd half of winter(7-12days) were taken on y-axis.