Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 47, Problem 5RQ
With an extinction rate of 100 E/MSY and an estimated 10 million species, how many extinctions are expected to occur in a century?
- 100
- 10,000
- 100,000
- 1,000,000
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
What would the extinction rate be for a 30 square mile island that is 1000 miles from
the mainland and has 150 species on it. Assume the extinction probability for each
individual species is 0.8 and the power scaling function is 0.25. Round your answer
to two decimals, include a 0 before the decimal if necessary, and do not include
units (i.e. O.XX)
If 99% of the species that ever existed are now extinct, why is there such concern over the extinction rates over the last several centuries?
Since 2000, three mammal species have been declared extinct by the IUCN: the Bramble Cay melomys (Melomys rubicola), Christmas Island pipistrelle (Pipistrellus murrayi) and the Saudi gazelle (Gazella saudiya). What is the extinction rate of mammals, in MSY, since 2000 (+/-0.01)? Assume for our purposes that 5,436 mammals have been monitored over the past 20 years.
Chapter 47 Solutions
Biology 2e
Ch. 47 - Figure 47.6 Scientists measured the relative...Ch. 47 - Figure 47.9 The Svalbard Global Seed Vault is...Ch. 47 - Converting a prairie to a farm field is an example...Ch. 47 - Figure 47.16 Which of the following statements is...Ch. 47 - With an extinction rate of 100 E/MSY and an...Ch. 47 - An adaptive radiation is.__________ a burst of...Ch. 47 - The number of currently described species on the...Ch. 47 - A mass extinction is defined as. a loss of 95...Ch. 47 - A secondary plant compound might be used for which...Ch. 47 - Pollination is an example of_____________ a...
Ch. 47 - What is an ecosystem service that performs the...Ch. 47 - Which two extinction risks may be a direct result...Ch. 47 - Exotic species are especially threatening to what...Ch. 47 - Certain parrot species cannot be brought to the...Ch. 47 - What was the name of the first international...Ch. 47 - About what percentage of land on the planet is set...Ch. 47 - Describe the evidence for the cause of the...Ch. 47 - Describe the two methods used to calculate...Ch. 47 - Explain how biodiversity loss can impact crop...Ch. 47 - Describe two types of compounds from living things...Ch. 47 - Describe the mechanisms by which human population...Ch. 47 - Explain what extinction threats a frog living on a...Ch. 47 - Describe two considerations in conservation...Ch. 47 - Describe what happens to an ecosystem when...
Additional Science Textbook Solutions
Find more solutions based on key concepts
Shivering is an involuntary response to lowered body temperature. What is the efficiency of the body when shive...
College Physics
18. SCIENTIFIC THINKING By measuring the fossil remains of Homo floresiensis, scientists have estimated its wei...
Campbell Biology: Concepts & Connections (9th Edition)
When you rub your cold hands together, the friction between them results in heat that warms your hands. Why doe...
Anatomy & Physiology
With respect to angiosperms, which of the following is incorrectly paired with its chromosome count? (A) eggn (...
Campbell Biology (11th Edition)
When two spiny mouse species coexist, Acomys cahirinus is nocturnal, whereas A. russatus is active during the d...
Study Guide for Campbell Biology
21-Year-Old Female with Skeletal Injuries
While riding her bike to campus, 21-year-old Liliana Rose was struck...
Human Anatomy & Physiology (11th Edition)
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
- The number of extinctions of birds and mammals has gone up as human populations have increased. True or False ?arrow_forwardThe following graph shows a different equilibrium point for two different-sized islands. What would happen if there were 50 species on both islands? Rate of colonization- Small $ S 30 60 Number of species on island Large Rate of extinction- O Both the small and large island would have an increase in species extinction O The small island would have an increase in extinction and the large island would have an increase in colonization O Both the small and large island would have an increase in species colonization O Nothing would happen, species number does not affect extinction nor colonization The small island would have an increase in colonization and the large island would have an increase in extinctionarrow_forwardEstimates indicate the average annual background extinction rate is approximately one species lost for each million species on the earth per year. True Falsearrow_forward
- When will we consider the recent crash in species richness to be part of a 6th mass extinction event? Group of answer choices: A. When at least 75% of the existing species go extinct within a 2-million year period B. When the current rate of extinction is at least 1000 times higher than the natural background extinction rates C. When at least 90% of the existing species go extinct within a 1-million year period D. When the current rate of extinction is at least one million times higher than the natural background extinction ratesarrow_forwardThe figure below shows the relative abundance (y axis) of shrubs in an ecosystem in the years following a fire (x axis). The shrubs in this ecosystem fall into two functional groups: fıre recruiters and fıre persisters. FIRE-RECRUITER SYNDROME FIRE-PERSISTER SYNDROME 10 100 Fire LOG YEARS If fire frequency decreased significantly in this ecosystem, which group would be benefited? O Both functional groups would benefit equally O Fire recruiter species O Fire persister species RELATIVE SHRUB SEEDLING ESTABLISHMENTarrow_forwardYou are an ecologist studying the biodiversity of islands in a tropical archipelago. Using the species-area relationship, you aim to estimate the number of species on a newly discovered island with an area of 220 km². Your research has established that the y-intercept of the species-area relationship (log S = log c + z log A) is 1.09 and the slope (z) is 0.38. Based on these parameters, how many species would you expect to find on this island? Group of answer choices: 34 149 82 8 92 0.65arrow_forward
- The green line is the isocline for species 1. The black line is the isocline for species 2. Population size Ni is on the x- axis. Population size N2 is on the y-axis. Why do both species coexist in this scenario? K/a12 (A) species 2 reaches its carrying capacity before it reaches the number of individuals it would take to drive species 1 extinct. At every stable size for species 2, species 1 is below its carrying capacity and therefore still increasing. K2 (B) the carrying capacity for both species is reached before they reach the number of individuals required to drive the other species extinct. At low population sizes, each species' growth rate is positive. KI (C) both species' carrying capacities are higher than the population size required to drive the other species extinct. Population size of Species 1 Green is the isocline for species 1 Black is the isocline for species 2 Population size of Species 2arrow_forwardChange in Rabbit Population 1850-2000 100 90 80 70 60 50 40 30 20 10 white gray white gray 1850 2000 In 1850 there was a large snowshoe rabbit population in Manitoba, Canada. Over the years, the winter coloration (the color of the rabbit's fur) of the surviving rabbit population changed. The graph shows the change in winter coloration of rabbits between 185 to 2000. Based on the data, we could hypothesize that A) the winters are longer in length. B) the snowshoe rabbit has migrated to another area. the amount of snow cover varied over the years. D) more snowshoe rabbit predators have moved into Manitoba. % Populationarrow_forwardIn 2011, approximately 23% (1138) of mammal species and 12% (1253) of bird species were globally threatened. These two groups have been thoroughly studied. The case with other groups of organisms is not well known. A large number of the threatened species are concentrated in tropical rain forest habitats, where biodiversity is high. Which of the following data options could be used to determine the cause of biodiversity decline in tropical habitats?arrow_forward
- Could you please help find a reasonable answer that fit the hypothesis?arrow_forwardPlease help plot out the survivorship curves of each of the 3 species in Excel. Also, which species best represents and why? Asian elephants, fruit fly, and cactus.arrow_forwardA population of 100 kit foxes colonizes a new grassland with no other foxes in it. The grassland has a carrying capacity for foxes of 200, and the fox population has a maximum growth rate of 60% per year. What will the population of kit foxes be ** 2 years from now (rounded to the nearest whole fox). *note that the current time frame is year 0. You will have to calculate years 1, and 2. 128 157 145 168arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Biology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStax
Biology: The Dynamic Science (MindTap Course List)BiologyISBN:9781305389892Author:Peter J. Russell, Paul E. Hertz, Beverly McMillanPublisher:Cengage Learning
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Biology: The Dynamic Science (MindTap Course List)
Biology
ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, 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