EP CONNECT ONLINE ACCESS FOR BIOLOGY
20th Edition
ISBN: 9781260494655
Author: Raven
Publisher: MCG COURSE
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Chapter 58, Problem 3DA
Would the extinction rate increase if an area were decreased in size by 90%? If so, by how much?
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what is background extinction rate
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?
If the human species were to suffer a population crash, what are three species that might move in to occupy part of our ecological niche?
Chapter 58 Solutions
EP CONNECT ONLINE ACCESS FOR BIOLOGY
Ch. 58.1 - Describe the history of extinction through time.Ch. 58.1 - Prob. 2LOCh. 58.2 - Prob. 1LOCh. 58.2 - Prob. 2LOCh. 58.3 - Prob. 1LOCh. 58.3 - Explain how these causes can interact to bring...Ch. 58.4 - Prob. 1LOCh. 58.4 - Describe the potential roles of natural selection...Ch. 58.4 - Prob. 3LOCh. 58.5 - Prob. 1LO
Ch. 58.5 - Prob. 2LOCh. 58.5 - Prob. 3LOCh. 58 - If we assume that population density is a good...Ch. 58 - Prob. 2DACh. 58 - Would the extinction rate increase if an area were...Ch. 58 - Prob. 4DACh. 58 - Why do population density and growth rates differ...Ch. 58 - Why might whale populations fail to recover once...Ch. 58 - Why do small populations lose genetic variation?Ch. 58 - Prob. 1UCh. 58 - The economic value of indirect ecosystem services...Ch. 58 - The amphibian decline is best described as a....Ch. 58 - Prob. 4UCh. 58 - When populations are drastically reduced in size,...Ch. 58 - A captive-breeding program followed by release to...Ch. 58 - Historically, island species have tended to become...Ch. 58 - Ninety-nine percent of all the species that ever...Ch. 58 - To effectively address the biodiversity crisis,...Ch. 58 - The introduction of a nonnative predator to an...Ch. 58 - If 99% of the species that ever existed are now...Ch. 58 - Prob. 2SCh. 58 - Prob. 3SCh. 58 - Prob. 4SCh. 58 - Prob. 5S
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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
- If the human species suffered a population crash, name three species that might move in to occupy part of our ecological niche.arrow_forwardHow might the removal of a regionally adapted population make a species more susceptible to extinction?arrow_forwardIf the human species were to suffer a population crash, list three species that might move in to occupy part of our ecological niche. List and explain three species that would likely decline as a result.arrow_forward
- In your region, what species are threatened with extinction? Why are they vulnerable? Suggest steps that could be taken to increase their populations.arrow_forwardQuestion 3 The equilibrium number of species on an island ____________. A) occurs when the extinction rate reaches zero. B) is independent of island size. C) occurs when no more species are able to migrate. D) occurs when immigration equals extinction. Question 4 The loss of energy between trophic levels _______________. A) is caused by the inefficiency of photosynthesis. B) determines the structure of ecosystems. C) depends on the rate of primary production. D) is an apparent violation of the second law of thermodynamics.arrow_forwardIf the fish on only one side of the island are dying, what will happen to the population dispersion of the fish?arrow_forward
- Do resources have to be present in limited supplies for competition to shape species niches? Yes or No.arrow_forwardDo protected areas that are set aside to protect biodiversity harbor more species than protected areas of the same size that are not specifically dedicated to biodiversity? Explain how you would show that.arrow_forwardCompare and contrast countries with high and low ecological footprints. What reasons can you attribute to the difference?arrow_forward
- Back at the original beaver population, only 40 beavers remained. This population also has a growth rate of 0.6 and generation time of 2 years. But the place on which this population resides is much smaller and has a carrying capacity of 200. How many beavers do you expect to find in the original population after 6 years?arrow_forwardHow would you respond to someone who says that because extinction is a natural process, we should not worry about the loss of biodiversity when species become extinct largely because of our activities?arrow_forwardA keystone species is one whose removal from a community causes extinction of other species. How does this extinction happen?arrow_forward
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