Biology
12th Edition
ISBN: 9781260494570
Author: Raven, Peter
Publisher: MCGRAW-HILL HIGHER EDUCATION
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 54, Problem 9IQ
Suppose experimenters artificially kept the hare population at a high and constant level; what would happen to the lynx population? Conversely, if experimenters artificially kept the lynx population at a high and constant level, what would happen to the hare population?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
In a population of lynx, a census was taken in the spring and again a year later. In the spring, there were 400 baby lynx born, of which 300 had a normal speckled coat phenotype and 100 had a black phenotype. A year later, there were 200 speckled coat lynx and 50 black lynx that had survived to adulthood. Calculate the survivorship for each phenotype, and determine the relative fitnesses based on survivorship. What is the relative fitness of the black fur phenotype (wb)?
a) 0.00 < w < 0.25
b) 0.25 < w < 0.50
c) 0.50 < w < 0.75
d) 0.75 < w < 1.00
In this version of the simulation (500 population size; 500 carrying capacity), all fish are equally likely (though not 100% likely) to survive and reproduce. There are no mutations, nor are there any entering or leaving the population. When they reproduce, they choose a mate from the pool at random and produce ten offspring by chance with the probability of the offspring’s genotypes determined by the punnett square. What caused the allele frequencies to change and vary in the trials? (ex attached).
This type of experiment, where members of an outbred populations are introduced to an inbred population as mating partners, is sometimes called a “genetic rescue”. How might measuring the average heterozygosity at a number of loci in the Swedish snake population allow you to test whether the introduced snakes had actually bred successfully with the inbred Swedish snakes?
Chapter 54 Solutions
Biology
Ch. 54.1 - Prob. 1LOCh. 54.1 - Prob. 2LOCh. 54.1 - Explain how species adapt to environmental...Ch. 54.2 - Prob. 1LOCh. 54.2 - Prob. 2LOCh. 54.3 - Prob. 1LOCh. 54.3 - Prob. 2LOCh. 54.3 - Prob. 3LOCh. 54.4 - Prob. 1LOCh. 54.4 - Prob. 2LO
Ch. 54.5 - Prob. 1LOCh. 54.5 - Discuss why populations cannot grow exponentially...Ch. 54.5 - Define carrying capacity and explain what might...Ch. 54.6 - Prob. 1LOCh. 54.6 - Prob. 2LOCh. 54.6 - Prob. 3LOCh. 54.7 - Prob. 1LOCh. 54.7 - Prob. 2LOCh. 54.7 - Prob. 3LOCh. 54 - Prob. 1DACh. 54 - Prob. 2DACh. 54 - Prob. 3DACh. 54 - Prob. 4DACh. 54 - Prob. 5DACh. 54 - Prob. 6DACh. 54 - Prob. 1IQCh. 54 - Prob. 2IQCh. 54 - Prob. 3IQCh. 54 - Prob. 4IQCh. 54 - Prob. 5IQCh. 54 - Prob. 6IQCh. 54 - Prob. 7IQCh. 54 - Prob. 8IQCh. 54 - Suppose experimenters artificially kept the hare...Ch. 54 - Prob. 10IQCh. 54 - Prob. 11IQCh. 54 - Prob. 12IQCh. 54 - Source-sink metapopulations are distinct from...Ch. 54 - The potential for social interactions among...Ch. 54 - When ecologists talk about the cost of...Ch. 54 - Prob. 4UCh. 54 - The difference between exponential and logistic...Ch. 54 - Prob. 6UCh. 54 - Which of the following is an example of a...Ch. 54 - If the size of a population is reduced due to a...Ch. 54 - In populations subjected to high levels of...Ch. 54 - In a population in which individuals are uniformly...Ch. 54 - Prob. 4ACh. 54 - Refer to figure 55.8. What are the implications...Ch. 54 - Prob. 2SCh. 54 - Refer to figure 55.14. Because the number of...Ch. 54 - Refer to figure 55.26. Would increasing the mean...
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
- Suppose you are a researcher studying a population of beach mice living in the coastal dunes of Florida. You notice that, although there is some variation in coat color, most of the mice have fairly light fur, which appears to help them blend into the sandy dunes. 1) After several experiments, you are able to determine that mice with extremely light or very dark coat colors are more easily detected by predators and you conclude that mice with those coat colors normally have lower fitness. 2) You are given permission to try to establish a new colony of beach mice at a nearby, protected beach. You are able to capture 15 mice and transfer them to the protected beach. However, by chance, the mice you captured have a higher proportion of dark colored coats than the original population did. 3) The dunes on the new beach are a darker color than the original beach, which allows the dark mice to survive better than the light-colored mice. After a few years, you are able to determine that your…arrow_forwardThere are two traits in moths: light color and dark color. If a population has 60%of the moths with the light color, using Hardy-Weinberg, what can be predicted about the offspring of the population if no environmental factors are present? 40%of the offspring will be dark in color 40%of the offspring will be light in color 60%of the offspring will be dark in color 50%of the offspring will be each colorarrow_forwardTwo human populations have the same net reproductive rates (R0), but different generationtimes. In what ways are these two populations similar and different?arrow_forward
- In a hypothetical bug population, color is determined by a single gene and black is dominant over white. The frequency of the black allele is 0.1. If the population is in Hardy-Weinberg Equilibrium, what percentage of the bugs would you expect to be white? Please show your work.arrow_forwardHow would you expect a population to evolve differently in a complex, "patchy" (small, isolated and variable/different) environment compared to a simple, homogeneous one? What traits do you think might be beneficial in one type of environment but not the other?arrow_forwardExplain the background of this experiment and briefly describe the procedure. When explaining the background of the experiment, you have to give a overview of limiting factors and how they affect the carrying capacity.arrow_forward
- You are studying gene Q/q in two populations of great white sharks. In one population most individuals have genotype QQ, and in the other population most individuals have the genotype qq. If there is some migration from each population into the other, how will this affect genotype frequencies?arrow_forwardSuppose that in maroon-fronted parrots, the number of chicks born each year in a population is compared to the number of predators in the same area. Correlation coefficient = -0.1 Number of predators From the correlation analysis, is there strong evidence that the number of predators affects the number of parrot chicks? Yes, because the number of chicks decreases as the number of predators increases. No, because the correlation coefficient is close to zero. Yes, because correlation analysis is used to determine the effect of one variable on another. No, because correlation analysis does not determine if there is a causal link between the two variables. Number of parrot chicksarrow_forwardHow do hatcheries (i.e. farmed salmon) impact wild salmon population genetics? A: Increase species variability between different populations B: Decrease the resilience of wild populations C: Decrease mixing between different populations D: Overcrowd streams when they return to where they were spawnedarrow_forward
- Q1: What would the white-fur-pigment allele frequency be if three of the homozygous black allele mice (having two black alleles) were heterozygous (having one white and one black allele) instead? Q2: What would the white-fur-pigment allele frequency be if all of the white mice died and were therefore removed from the population? Would the black-fur-pigment allele frequency be affected? If so, how? Q3: What would the white-fur-pigment allele frequency be if all of the gray mice died and were therefore removed from the population?arrow_forwardQuestion 51 of 51 Click Submit to complete this assessment. Question 51 You have been doing extensive research for 30 years on the frequency of coat colors (black, gray, white) in a guinea pig population located in the Andes Mountains. You suspect that your guinea pig population is undergoing stabilizing selection. If this is the case, what would you expect to find when you graph your data? Select all that apply.A) Two peaks, one at each end of the graph.B) A graph with a single peak towards the far right.C) A graph with a single tall and narrow peak located in the center.D) A graph indicating gray guinea pigs have an advantage over black guinea pigs and white guinea pigs.E) A graph indicating that gray guinea pigs are being selected against.arrow_forwardSuppose a population of mice is subject to a few years of very cold, dry winters that drastically decreases their numbers. After the decrease in population size, there was a population of 200 mice, with 182 showing the dominant long tail phenotype and 18 showing the recessive short tail phenotype. a. What is the frequency of the recessive allele? b. What is the frequency of the dominant allele?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Human Heredity: Principles and Issues (MindTap Co...BiologyISBN:9781305251052Author:Michael CummingsPublisher:Cengage Learning
Human Heredity: Principles and Issues (MindTap Co...
Biology
ISBN:9781305251052
Author:Michael Cummings
Publisher:Cengage Learning
Mendelian Genetics and Punnett Squares; Author: Professor Dave Explains;https://www.youtube.com/watch?v=3f_eisNPpnc;License: Standard YouTube License, CC-BY
The Evolution of Populations: Natural Selection, Genetic Drift, and Gene Flow; Author: Professor Dave Explains;https://www.youtube.com/watch?v=SRWXEMlI0_U;License: Standard YouTube License, CC-BY