Why B is wrong? Which of the following is NOT an assumption of the basic Lotka-Volterra model of predatory-prey dynamics?Prey are the primary food source for the predatorsx OThere is no immigration or emigration of predators or preyAll prey in the population are accessible to predators, e.g. there are no prey refugesPrey population growth can be limited by food and other resourcesPredators are the main cause of mortality for the prey

Lotka-Volterra model was developed by Alfred Lotka and Vito Volterra independently in 1920's. The…

Answered: Why B is wrong?

Science

Biology

Why B is wrong?

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter19: Population And Community Ecology

Section: Chapter Questions

Problem 2ACQ: Figure 19.6 If the major food source of seals declines due to pollution or overfishing, which of the...

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Figure 19.6 If the major food source of seals declines due to pollution or overfishing, which of the following would likely occur? a. The carrying capacity of seals would decrease, as would the seal population. b. The carrying capacity of seals would decrease, but the seal population would remain the same. c. The number of seal deaths would increase, but the number of births would also increase, so the population size would remain the same. d. The carrying capacity of seals would remain the same, but the population of seals would decrease.
Figure 45.10b If the major food source of the seals declines due to pollution or overfishing, which of the following would likely occur? The carrying capacity of seals would decrease, as would the seal population. The carrying capacity of seals would decrease, but the seal population would remain the same. The number of seal deaths would increase but the number of births would also increase, so the population size would remain the same. The carrying capacity of seals would remain the same, but the population of seals would decrease.
Whichof the following factors can stabilize predator-prey relationships by providinga prey refuge?a.An area of prey habitat where predators cannot enterb.An area of prey habitat that is isolated and difficult for predators tofindc.The occurrence of prey in numbers too large for predators to attackeffectivelyd.The ability of prey to grow to a size invulnerable to predatione.All of the choices apply.
All of the following factors can prevent predators from driving prey to extinction except: A. habitat complexity B. evolutionary changes in prey populations C. spatial refuges D. prey switching in predators E. simple environments allowing for easy predator dispersal
In the Lotka-Volterra predator-prey equations, the term a b N prey N predator describes: The rate at which predators eat prey The rate at which new predators are added to the predator population The rate at which the predator population increases over time The intrinsic growth rate of the prey population
Which of the following conditions tend to destabilize populations (e.g. make extinctions more likely) for a predator and prey demonstrating Lotka-Volterra predator-prey dynamics? More than one food source (prey species) for the predator No immigration or emigration of the predator and prey The existence of prey refuges why option B is correct?
In a certain ecosystem, field mice are preyed on by snakes and hawks. The entry of wild dogs into the system adds another predator of the mice. Of the following, the most likely short-term result of this addition is Group of answer choices: extinction of the hawks. a tendency for hawks to prey on the dogs. a reduction in numbers of mice. migration of the hawks to another ecosystem. an increase in snake population.
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?
The long-term study by Krebs on the population dynamics of snowshoe hares and lynx has become a textbook example of predator-prey relationships. The population cycles he observed are the result of both biotic and abiotic factors affecting prey populations. List 3 factors that can contribute to population cycles and briefly explain their effects
A negative feeback loop would be: Preditors and prey keeping each other’s populations in check so there is no overpopulation. Preditors out competeing prey. Prey outcompeting preditors. Both preditors and prey being outcompeted by another organism.
The population cycles of many prey species are often generated by predators anda. mimicry.b. food plants.c. weather patterns.d. water availability.
Great white sharks prefer marine mammals like seals but can eat a number of other prey items, including birds and fish. According to the table below, what is the critical search time for seals, above which great white sharks should choose to eat an albatross if they encounter one? Prey item: seal (energy = 60 Mcals, handling time = 5 minutes) Prey item: albatross (energy = 10 Mcals, handling time = 2 minutes)