Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Chapter 47, Problem 18CTQ
Describe the two methods used to calculate contemporary extinction rates.
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what is background extinction rate
Draw a species accumulation curve for the beetles in Area C3, based on the data shown in Table 2. Ensure that you calculate a standard deviation around each average number of species per sample; plot this on this figure. Make sure you label the axes and that you provide a legend.
You will need to reassemble the samples in all possible combinations in order to derive the species area curve(Table provided)
briefly explain why there is species variation?
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...
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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
- The table below shows the size of species A and B populations that live on a small island near Philippine.a) State how the information in the table can be used to determine thatthe species B is the predator.b) Briefly explain TWO (2) possible ecological reasons, other than humanactivity, for the change in species A population between 1985 and 1990.c) Name TWO (2)limiting factors that keep the species B population sizefrom growing any larger.arrow_forwardDiscuss the types of survivorship curves, explaining the life history features found in organisms possessing different types of curves. Give at least 1 example of each.arrow_forwardGive correct typing answer with explanation and conclusion True/False: At equilibrium, the smaller of two islands equidistant from the mainland will have a higher rate of extinction and, thus, (i) fewer species, and (ii) a higher rate of species turnover.arrow_forward
- Draw a species accumulation curve for the beetles in Area C3, based on the data shown in Table 2. Ensure that you calculate a standard deviation around each average number of species per sample; plot this on this figure. Make sure you label the axes and that you provide a legend. You will need to reassemble the samples in all possible combinations in order to derive the species area curve.(porvided the table)arrow_forwardTwo species have the same initial population size of 48.00, as well as rates of b = 0.83 and d = 0.66. However, species A reproduces seasonally and species B reproduces relatively continuously. How much bigger would the population of species B be after five years as compared to species A?arrow_forwardChoose one anthropogenic causes of extinction and provide possible solution/s on how to prevent it.arrow_forward
- Plot survivorship curves for all three species illustrated in Table 1 on a single graph. Label the axes and provide a clear legend convert it and make use of legend, so for the first species it would be 6months=1unit, then for the second species 1yr=1unit, and the third species would be 50yrs=1unitarrow_forwardWhat is the significance of the slope of regression in a species – arearelationship?arrow_forwardChoose one of the following factors and explain how and why species richness varies with it: temporal variation, latitude, succession. Give a specific example.arrow_forward
- Estimates indicate the average annual background extinction rate is approximately one species lost for each million species on the earth per year. True Falsearrow_forwardTo the Bartleby Expert: How would you describe the slope of a rank abundance curve that vary with increasing species evenness?arrow_forwardDescribe one method for collecting natural history information from populations/species in the field and the type(s) of data it can best provide.arrow_forward
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