Campbell Biology in Focus, Books a la Carte Edition; Modified Mastering Biology with Pearson eText - ValuePack Access Card - for Campbell Biology in Focus (2nd Edition)
2nd Edition
ISBN: 9780134433769
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Question
Chapter 27.2, Problem 2CC
Summary Introduction
To determine:
In what way the ongoing evolutionary changes in prey and predator population will be affected, if a well-defended prey species arise that is difficult for the predators to catch or eat.
Concept introduction:
The struggle between prey and predators always keep on going. The prey evolves some features that allow them to escape predators and increase in number. The predators in turn also develop some features to counter the escape mechanism of prey. The prey and predator interaction in this way lead to their co-evolution.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Think about a predator-prey system that perfectly follows Lotka-Volterra dynamics.
The search efficiency parameter (a) represents how quickly the predator finds and
kills its prey. What would happen if most the predator population had a parasite that
made them less effective predators? Infected animals find and kill prey less
frequently (that is, the parasite caused the value of the search efficiency parameter
to decline).
the populations would still cycle; the amplitude of prey and predator would
increase
Othe populations would no longer cycle; the prey would increase and the predator
would go extinct
the populations would no longer cycle; the prey would go extinct and the
predator would increase
the populations would still cycle; the amplitude of prey and predator would
decline
the predator and prey populations would no longer cycle; the parasite and the
predator populations would cycle instead
With respect to the Lotka-Volterra predator-prey model, which of the following
statements is most likely true?
Under this model, it is possible for a predator to drive its prey to extinction.
All of the statements are true.
Non of the statements is true.
This model predicts neutrally-stable predator-prey cycles, as opposed to a
stable equilibrium.
O In this model, an increase in searching efficiency (a) will increase the maximum
prey population.
Why B is wrong?
Chapter 27 Solutions
Campbell Biology in Focus, Books a la Carte Edition; Modified Mastering Biology with Pearson eText - ValuePack Access Card - for Campbell Biology in Focus (2nd Edition)
Ch. 27.1 - Prob. 1CCCh. 27.1 - Prob. 2CCCh. 27.2 - What is the Cambrian explosion? Why is it...Ch. 27.2 - Prob. 2CCCh. 27.3 - Prob. 1CCCh. 27.3 - WHAT IF? Would it be accurate to describe the...Ch. 27.4 - Prob. 1CCCh. 27.4 - Describe two key adaptations of aquatic...Ch. 27.4 - MAKE CONNECTIONS The radiation of bilaterians in...Ch. 27.5 - Describe two adaptations that have enabled insects...
Ch. 27.5 - MAKE CONNECTIONS Compare and contrast how the...Ch. 27.6 - Describe three key amniote adaptations for life on...Ch. 27.6 - Prob. 2CCCh. 27.6 - WHAT IF? Which came first, the chicken or the egg?...Ch. 27.7 - Describe how ocean communities changed in the...Ch. 27.7 - Prob. 2CCCh. 27.7 - Prob. 3CCCh. 27 - Prob. 1TYUCh. 27 - Fossil steroid and molecular clock evidence...Ch. 27 - Which of the following was probably the least...Ch. 27 - Prob. 4TYUCh. 27 - Prob. 5TYUCh. 27 - Prob. 6TYUCh. 27 - Prob. 7TYUCh. 27 - FOCUS ON EVOLUTION In Figure 27.29, circle the...Ch. 27 - FOCUS ON ORGANIZATION Early tetrapods had a...Ch. 27 - SYNTHESIZE YOUR KNOWLEDGE Collectively, do these...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- . Scientific study of the population cycles of the snowshoe hareand its predator, the lynx has revealed that(A) predation is the dominant factor affecting prey populationcycling.(B) hares and lynx are so mutually dependent that each speciescannot survive without the other.(C) both hare and lynx population sizes are affected mainly byabiotic factors.(D) the hare population is r-selected and the lynx populationis K-selected.arrow_forwardThe 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?arrow_forwardIs this correct??? or is it the other way aroundarrow_forward
- Thinking about the Lotka-Volterra predator-prey model, what effect should an increase in searching efficiency (a) have on the maximum prey population? Increase Decreasė No change < Previnus V Finisharrow_forwardWhat are some examples in animal behaviors to adapt to climate change? Example 1: Example 2: Example 3: THE EXAMPLES ARE RIGHT IN THE TEXT NOT FROM GOOGLEarrow_forward8.arrow_forward
- What would you conclude after comparing the survivorship of the ground squirrel and the finch? Multiple Choice Both have very large numbers of offspring. Both die primarily of old age. Both suffer high predation throughout the lifespan. They represent different survivorship types.arrow_forward三| m 13 TABLE 14.2 Generation: 2. 11 12 14 15 3. 9 Initial Prey loo lo044 이 814 22 Total Prey Captured 2. 1|9れ|8t|8E Initial Predators 654 (1 20 4 2. Surviving Predators 3 2 to 33 Predator Offspring 12 Data Analysis: Graph your results. and initial 1 Independently (not with your group), use the data in Table 14.2 to enter the initial predators into two columns in a spreadsheet (e.g., Excel or Google Sheets). prey 2 Select these two columns, and Insert a line graph. 3 In Chart Layouts, select Layout 1 and enter a chart title and the y-axis title (Abundance). 4 In Layout, select Axis Titles, Primary Horizontal Axis Title, Title Below Axis, and enter the x-axis title (Generation). 5 Select the y-axis numbers, Format, Format Selection; click Logarithmic scale, “Cross" for major tick mark type, and “Cross" for minor tick mark type. 6 Save to the desktop and e-mail the file to yourself. Print your graph and turn it in with this lab. DO YOUR OWN WORK! NO PHOTOCOPIES! Or your instructor may…arrow_forwardWhy B is correct?arrow_forward
- Topic: NATURAL SELECTION ACTIVITY Simulate a case of natural selection in a predator-prey situation. STEP 1 Gather your materials. You should have: . 1 fork, 1 knife, 1 spoon, and a length of tape (each will be used toestablish the distinct predator "feeding apparatuses")· 4 cups (each will serve as a distinct predator's "mouth")· 3 types of prey (such as popcorn, macaroni, and kidney beans)· 1 clearly delineated habitat (such as a table, a box, or a roped-off areaof ground). 1 timer that allows for counting by seconds (such as a watch or cellphone) STEP 2 Set up the predators. There is variation in predatory feeding apparatuses in this population. You will choose one of the available predator feeding apparatuses: fork, spoon, knife, or four fingers (with your thumb taped to your hand so that you cannot use it). You will also take a cup, which will represent the predator's mouth. Your goal will be to use your feeding apparatus to collect food and put it inyour mouth. STEP 3 Set up the…arrow_forwardFitness and Selection: Rodent tails A researcher is studying a rodent species with a lot of variability in tail length. Individuals may have short tails, medium tails, or long tails. The researcher has noticed that a new invasive predator, which catches prey by their tails as they try to escape, seems to catch individuals with long tails more often than those with short tails. Based on a small field trial, the relative fitness of long-tailed individuals seems to be 0.6 compared to short-tailed ones (1.0), with medium tails in-between (0.8). Use the Examples tab to predict the outcome after selection for the rodent in regions with the invasive predator. What describes the population after 100 generations of selection? Choose all that apply. A-Short Tailed individuals are the most common phenotype. B-Short Tailed individuals are the only phenotype. C-This is an example of disruptive selection. D- The long tailed phenotype is no longer present E-This is an example of directional…arrow_forwardDiscuss the pros and cons,in energetic terms,of (i) being a generalist as opposed to a specialist predator, and (ii) being a sit–and –wait predator as opposed to an active forager?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning
Biology Today and Tomorrow without Physiology (Mi...BiologyISBN:9781305117396Author:Cecie Starr, Christine Evers, Lisa StarrPublisher:Cengage Learning
Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Cengage Learning
Biology Today and Tomorrow without Physiology (Mi...
Biology
ISBN:9781305117396
Author:Cecie Starr, Christine Evers, Lisa Starr
Publisher:Cengage Learning
How stress affects your body - Sharon Horesh Bergquist; Author: TED-Ed;https://www.youtube.com/watch?v=v-t1Z5-oPtU;License: Standard Youtube License