Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
Publisher: Pearson,
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 31, Problem 3MC
Summary Introduction
Introduction: Extinction means the complete loss of the species or organism in the present day. It is a natural phenomenon; the background rate was about 1 to 5 spices per year. The current data show that the modern rate of extinction is more than the background. It is around 1000–10,000 times more than the background.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
In your region, what species are threatened with extinction? Why are they vulnerable? Suggest steps that could be taken to increase their populations.
Which activity would be most likely categorized as restoration ecology?
a.
Counting the number of fish species in a lake
b.
Determining the effects of traffic noise on singing robins
c.
Removing pollutants from the Hudson River
d.
Modeling the effects of climate change on the distribution of a plant
e.
Surveying genetic variation in a population of an endangered salamander
The Burmese Python, an invasive species, has been introduced to the Florida Everglades, largely through release by owners who acquired the snakes from exotic pet traders. Though the Everglades are protected, pythons as predators can not be easily controlled. What can be concluded about the effect of the python population on the biodiversity of the Everglades?
A. Since the Everglades are protected, python control is limited under laws that protect species in the Everglades.
B. Since the python population is growing, it will eventually become a native species and will increase biodiversity.
C. Since pythons prey on many species in the Everglades, resources will be more available for surviving species and fewer will be considered endangered.
D. Since pythons have no predators, they are responsible for decreasing mammal population and are a greater threat to biodiversity.
Chapter 31 Solutions
Biology
Ch. 31.1 - describe the goals of conversation biology?Ch. 31.1 - Prob. 2CYLCh. 31.2 - Prob. 1HYEWCh. 31.2 - Prob. 1CSCCh. 31.2 - Prob. 1CYLCh. 31.2 - Prob. 2CYLCh. 31.3 - Prob. 1TCCh. 31.3 - Prob. 2TCCh. 31.3 - Prob. 1CSCCh. 31.3 - Prob. 3TC
Ch. 31.3 - Prob. 4TCCh. 31.3 - define mass extinction?Ch. 31.3 - explain why biologists fear that a mass extinction...Ch. 31.3 - Prob. 3CYLCh. 31.4 - Prob. 1TCCh. 31.4 - Prob. 1CSCCh. 31.4 - Prob. 1CYLCh. 31.4 - Prob. 2CYLCh. 31.4 - Prob. 3CYLCh. 31.5 - Prob. 1TCCh. 31.5 - describe the principles of sustainable...Ch. 31.5 - Prob. 2CYLCh. 31.5 - Prob. 3CYLCh. 31 - Which of the following is not a major threat to...Ch. 31 - Prob. 2MCCh. 31 - Prob. 3MCCh. 31 - Prob. 4MCCh. 31 - Prob. 5MCCh. 31 - Prob. 1FIBCh. 31 - Prob. 2FIBCh. 31 - Prob. 3FIBCh. 31 - The smallest population of a species that is...Ch. 31 - A popular saying tells us that We do not inherit...Ch. 31 - Prob. 1RQCh. 31 - Prob. 2RQCh. 31 - Prob. 3RQCh. 31 - Why are efforts to protect monarch butterflies a...Ch. 31 - Prob. 1ACCh. 31 - Search for and describe some examples of habitat...
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
- Environments with low frequency and intensity of disturbance tend to have ________ species diversity because ______. Group of answer choices A) low; the best competitors exclude any other species B) high; disturbances kill off a large number of individuals C) low; there are fewer late-successional species than early-successional species D) high; more species can colonize over a longer period of time Question: Answer choice selection is either: Burkina Faso or Italy for all three answer choicesarrow_forwardA recent United Nations analysis report gathered data on declines in biodiversity across the world. Using the graphs provided, which statement shows an area of concern and is an alternative to the general hypothesis "Humans are responsible for a significant increase in the extinction rate among species in the world today as a result of damage caused to the environment"? A. Fertilizer use in developing countries should be encouraged to decrease the extinction rate B. Decreasing air pollution in the least developed countries would decrease species survival rate C. Protection of key biodiversity areas should be a priority for developed countries to lower the extinction rate D. Assisting developing countries with more sustainable methods of extraction of living biomass would increase species survival ratesarrow_forwardThe table shown below represents the number of species growing in an area that was logged using clear-cutting 45 years ago in Temagami, Ontario. Data was collected periodically over 45 years. a.) describe the changes occurring in vegetation type and species diversity over the 45 years b.) what does the pattern of change tell you about what is happening in this area? c.) Explain how the data supports your conculsion.arrow_forward
- Using what was talked about in class, which of the following would most indicate an ecosystem that is the most resilient to change? (a) Many species with a lot of connections (b) Few species with few connections (c) None of these (d) Many species with few connectionsarrow_forwardThe graph above is from a paper by Dave Tilman published in 1994. Which of the following statements is consistent with the graph? A) The results contradicts the intermediate disturbance hypothesis B) Increasing diversity increases community stability C) The results support the intermediate disturbance hypothesis.arrow_forwardImagine that conservation biology did not exist. What would be the effect on biodiversity?arrow_forward
- Communities are defined by? A). Species whose ranges overlap B). Species that have the same ranges C). physical features of a defined geographic region D). The area occupied by the species with the largest rangearrow_forwardWhich of the following is not true of a population of largepredators in a small reserve?a. The species may disappear from the reserve.b. The species will probably undergo a populationexplosion.c. The species will probably lose genetic diversity.d. The species may overeat its prey, causing a reduction inprey population.arrow_forwardThe island equilibrium model predicts that a small island will be able to support _____ species than a large island because the rate of _____ will be higher due to _____. A. More; extinction; easier dispersal B. More; immigration; easier dispersal C. Fewer; immigration; reduced dispersal D. Fewer; extinction; increased competition E. Fewer; immigration; harder dispersalarrow_forward
- Some people declare that we shouldn’t worry about endangered species because extinction has always occurred. How would you respond to this view?arrow_forwardHypothetical scenario: In a vast area of a land-locked town, two distinct forest formations can be found – forest over limestone formation a lowland tropical forest. Researchers did an area-random sampling composed of 25 plots measuring 20mx20m for each of the two forest formations. Do you think the two forest formations have the same diversity index values and species richness? Why or why not?arrow_forwardThe Ministry of the Environment (MMA) asks you to evaluate the effect of anthropogenic activity on the biodiversity of mammals in the foothills of the Central Zone in the last 20 years, which is known to be associated with significant habitat fragmentation. .Based on this information:a) Indicate 2 indicators of diversity indicating the change that you would expect to observe in them between the years 2000 and 2020. Give reasons for your answer.b) Draw the rarefaction curves that you would expect to obtain for the community in the study area in the year 2000 and in the year 2020.c) Indicate and explain 2 effects that you would expect to find on mammalian biodiversity by the year 2022 due to the COVID-19 pandemic.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Human Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage Learning
Human Biology (MindTap Course List)
Biology
ISBN:9781305112100
Author:Cecie Starr, Beverly McMillan
Publisher:Cengage Learning
Evidence for Evolution - Biogeography; Author: Viced Rhino;https://www.youtube.com/watch?v=304wIG6H11E;License: Standard YouTube License, CC-BY