Biology: Life on Earth with Physiology (11th Edition)
11th Edition
ISBN: 9780133923001
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 31.2, Problem 1CSC
Summary Introduction
To describe:
The principal causes of loss of biodiversity, keystone predators.
Introduction:
Keystone species is often a dominant predator whose removal allows a prey population to explode and often decreases overall diversity. Urbanization, deforestation, habitat fragmentation, pollution, population growth, and invasive species are the main cause of loss of biodiversity and keystone predators
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
What is happening to the forest of Madagascar and what is the outcome?
Why is saving the biodiversity of Madagascar so important?
Why does Australia have such an unusual variety of spiders?
What are five reasons species are becoming extinct?
What does it mean for a species to be extinct? Give an example
How do invasive species travel or spread to a different ecosystem? Give an example.
List and describe five examples of declining biodiversity
five actions that individuals can do to help create and support biodiversity?
Natural processes of species formation and extinction emerge on a timescale measured in millions of years, whereas human-mediated extinctions are measured on a scale of years to decades. How does this discrepancy complicate our attempts to conserve biodiversity?
Environmental scientists David Pimentel, Rodolfo Zuniga, and Doug Morrison of Cornell University reviewed scientific estimates for the economic and ecological costs imposed by introduced and invasive species in the United States. They found that, as of 2005, approximately 50,000 species had been introduced in the United States and that these accountedfor over $120 billion in economic costs each year. These costs include direct losses and damage, as well as costs required to control the species. (The researchers did not quantify monetary estimates for losses of biodiversity, ecosystem services, and aesthetics, which they said would drive total costs several times higher.) Calculate values missing from the table to determine the number of introduced species of each type of organism and the annual cost that each imposes on our economy.
Of the 50,000 species introduced into the UnitedStates, half are plants. Describe two ways in whichnon-native plants might be brought to a new location.How…
Chapter 31 Solutions
Biology: Life on Earth with Physiology (11th Edition)
Ch. 31.1 - describe the goals of conversation biology?Ch. 31.1 - Prob. 2CYLCh. 31.2 - Prob. 1CSCCh. 31.2 - describe the major categories of ecosystem...Ch. 31.2 - Prob. 1TCCh. 31.2 - Prob. 2CYLCh. 31.3 - define mass extinction?Ch. 31.3 - Prob. 1HYEWCh. 31.3 - explain why biologists fear that a mass extinction...Ch. 31.4 - Prob. 1CSC
Ch. 31.4 - Prob. 1CYLCh. 31.4 - Prob. 1TCCh. 31.4 - Prob. 2CYLCh. 31.5 - Prob. 1CSCCh. 31.5 - Prob. 1CYLCh. 31.5 - Prob. 1TCCh. 31.5 - Prob. 2CYLCh. 31.6 - Before 1700, wolves roamed over almost all of...Ch. 31.6 - describe the principles of sustainable...Ch. 31.6 - In 1970, Atlantic leatherback sea turtle...Ch. 31.6 - explain how population, technology, and lifestyle...Ch. 31 - List some reasons that the ecological footprints...Ch. 31 - Prob. 1FIBCh. 31 - A factor that increases humanity ecological...Ch. 31 - Prob. 1RQCh. 31 - Search for and describe some examples of habitat...Ch. 31 - Prob. 2FIBCh. 31 - Prob. 2MCCh. 31 - What is ecological economics? Why is it important?Ch. 31 - Prob. 3FIBCh. 31 - Prob. 3MCCh. 31 - Prob. 3RQCh. 31 - Prob. 4FIBCh. 31 - Prob. 4MCCh. 31 - Prob. 4RQCh. 31 - The smallest population of a species that is...Ch. 31 - Which of the following is not true of a population...Ch. 31 - Why are efforts to protect monarch butterflies a...Ch. 31 - A Native American saying tells us that We do not...
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
- Explain the tree trap solution for the removal of lanternflies. How will the tree trap solution affect the native species, economy, and/or social impacts? How long do you think it will take to return to the original biodiversity of the first ecosystem based on the tree trap solution and why?arrow_forwardCompetition between species on the same trophic tier leads to four potential outcomes, 3 are deterministic (zero sum games where one species goes extinct and the other maximizes their growth to balance at the carrying capacity) and one where both competitors survive, but neither does well. A) This dynamic suggests that extirpation (local extinction) of populations is a far more likely outcome than co-existence. How does this affect management policies aimed at increasing biodiversity and proliferation of inter and intra population and interspecies variation. B) Endangered species are defined by low growth rates (r) and low K (reflecting high demand for resources). What are the implications of both these factors on the outcome of competition scenarios, especially the most common scenario of alternate stable states?arrow_forwarda population of mice moves into a field in which secondary succession is occurring. What is the most likely reason the mouse population moved into this area?arrow_forward
- Identify one problem created by the introduction of the invasive species. Provide a solution for the removal of the invasive species. Explain your solution for the removal of the native species, economy and/or social impacts? How long do you think it will take to return to the original biodiversity of the ecosystem based on your solution and why?arrow_forwardAs the fertility of soil on the forest floor increases, which of the following most likely will occur? Mark only one oval. 00 A) size of plants decreases. B) growth rate of plants increases. C) density of plants decreases. D) number of species of plants increases. E) probably nothing not benefited. Mark only one oval. levolls aviat estela Related to the greater Yellowstone area and according to abundance levels, have benefited from wolf reintroduction, while have ainerion A) grizzly bears, brown bears B) beavers, aspen trees C) woody plant species, beavers D) all of the above first listed species, elk A) zonation. OB) stratification. C) succession. D) characterization. OE) vector-born bond woll 19v altide A (0) lagens ewolis témns) A (0) anomoe ni sunt aniq bio nA (SSSS oorhoorigion Mos Jealsong visuau al vinum Changes in community composition and structure over time are called which of the following? Jovo sto no he Mark only one oval. 2000 abnedm 1003 en avoubisen (0 esw 162 (3 CD…arrow_forwardExplain the solution for the removal of water flies. How will this solution affect the native species, economy, and/or social impacts? How long do you think it will take to return to the original biodiversity of the ecosystem based on this solution and why?arrow_forward
- What is the relationship between a pioneer species and primary succession? A pioneer species is an invasive species that causes areas to experience primary succession. There is not a relationship between a pioneer species and primary succession. The pioneer species only occurs in areas of secondary succession. A pioneer species is important in an area of primary succession because it can grow and thrive in areas where most other species cannot. A pioneer species only inhabits areas of primary succession.arrow_forwardA conservation organization has hired you to lead efforts to reduce the loss of biodiversity in a tropical country. Which of the following problems would you focus on first and why: habitat destruction and fragmentation, hunting and fishing activity, harvesting of wild species for commercial sale, or introduction of exotic organisms?arrow_forwardSustainable conservation practices aim to balance human needs with the protection of biodiversity. Which of the following is NOT typically considered a sustainable conservation strategy? (a) Establishing protected areas for endangered species. (b) Implementing quotas and regulations on resource extraction. (c) Promoting habitat restoration and ecological corridors. (d) Encouraging the introduction of non-native species for pest control.arrow_forward
- A population of 1,492 finches is introduced to a rainforest. Over the next year, the finches show a death rate of 0.395 while the population drops to 1,134. What's the birth rate for this population? Is this proving to be a suitable habitat? (Two answers) a) Yes, this is a suitable habitat. The birth rate is higher than the death rate. b) No, this is not a suitable habitat. The birth rate is much lower than the death rate. c) 589 d) -358 e) 0.155 f) 0.845arrow_forwardExplain the immediate and secondary effects or removing others from a kelp forest ecosystem. In your response, use the word: keystone species, biodiverse/biodiversity USE THIS SETENCE STARTER: the immediate effect of removing otters from the ecosystem is... The secondary effect of removing otters from the ecosystem is...arrow_forwardA forest fire destroys a large section of a mature forest. Several years later, the area is covered with a mix of grasses, shrubs, and small trees. The process of ecological recovery in this forest is characterized by the re-establishment of complex plant communities. 1) Is this an example of primary or secondary succession? 2) Which stage of ecological succession is most likely represented by this scenario? Intermediate stage Alternative stable stage Pioneer stage Climax Community Stagearrow_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