Campbell Biology
12th Edition
ISBN: 9780135188743
Author: Urry
Publisher: PEARSON
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Chapter 52.5, Problem 2CC
MAKE CONNECTIONS → Commercial fisheries target older, larger cod fish, causing cod that reproduce at a younger age and smaller size to be favored by natural selection. Younger, smaller cod have fewer offspring than do older, larger cod. Predict how evolution in response to fishing would affect the ability of a cod population to recover from overfishing. What other reciprocal eco-evolutionary effects might occur? (See Concept 23.3.)
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Chapter 52 Solutions
Campbell Biology
Ch. 52.1 - Explain how the sun's unequal heating of Earth's...Ch. 52.1 - What are some of the differences in microclimate...Ch. 52.1 - WHAT IF? Changes in Earth's climate at the end of...Ch. 52.1 - MAKE CONNECTIONS Focusing just on the effects of...Ch. 52.2 - Based on the climograph in Figure 52.10, what...Ch. 52.2 - Using Figure 52.12, identify the natural biome in...Ch. 52.2 - WHAT IF? If global warming increases average...Ch. 52.3 - Why are phytoplankton, and not benthic algae or...Ch. 52.3 - Prob. 2CCCh. 52.3 - MAKE CONNECTIONS As noted in Figure 52.15, the...
Ch. 52.4 - Give examples of human actions that could expand a...Ch. 52.4 - WHAT IF? You suspect that deer are restricting...Ch. 52.4 - MAKE CONNECTIONS Hawaiian silverswords under-went...Ch. 52.5 - Describe a scenario showing how ecological change...Ch. 52.5 - MAKE CONNECTIONS Commercial fisheries target...Ch. 52 - Suppose global air circulation suddenly reversed,...Ch. 52 - Prob. 52.2CRCh. 52 - Prob. 52.3CRCh. 52 - Interactions between organisms and the environment...Ch. 52 - Suppose humans introduced a species to a new...Ch. 52 - Level 1: Knowledge/Comprehension 1. Which of the...Ch. 52 - Which lake zone would be absent in a very shallow...Ch. 52 - Which of the following is characteristic of most...Ch. 52 - Prob. 4TYUCh. 52 - Prob. 5TYUCh. 52 - When climbing a mountain, we can observe...Ch. 52 - Prob. 7TYUCh. 52 - Prob. 8TYUCh. 52 - Prob. 9TYUCh. 52 - EVOLUTION CONNECTION Discuss how the distribution...Ch. 52 - SCIENTIFIC INQUIRY Jens Clausen and colleagues, at...Ch. 52 - WRITE ABOUT A THEME: INTERACTIONS Global warming...Ch. 52 - SYNTHESIZE YOUR KNOWLEDGE If you were to hike up...
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- Which of the following best explains the connection between increased competition and the evolution of a species by natural selection? Individuals migrate to another area in order to avoid competition for limited resources in the current ecosystem. Individuals that have traits that allow them to outcompete others survive better and produce more offspring. Individuals must become stronger to compete for resources, and this increased strength is passed on to the next generation. Individuals that must compete for limited resources are more likely to have diseases that cause mutations.arrow_forwardEVOLUTION ASSESSMENT - FINCHES Galápagos Ground Finches Between 1973 and 1978, the population of ground finches (a type of small bird) on the Galápagos Islands decreased. Scientists made observations of the population throughout that time period. They recorded and graphed differences in the distribution of traits over time. The two sets of graphs below come from the data they collected. Beak Length for Ground Finches Observed in the Wet Seasons of 1973 and 1978 Wet 1973: all finches # of finches 30 # of finches 25 20 15 10 5 0 30 25 20 15 10 5 12-01 0 $4.9 80-84 30.0- 11.5-11.9 Beak Length (mm) Source: inquiryHub 35.0-39.9 40.0-44.9 12.5-12.9 13.0-13.4 13.5-13.9 14.0- Wing Length for Ground Finches Observed in the Wet Seasons of 1973 and 1978 Wet 1973: all finches 65.0 Wing Length (mm) Source: inquiryHub 70.0-74.9 # of finches 75.0- 30 25 # of finches 20 10 5 0 30 25 20 15 O 10 5 0 Wet 1978: all finches 7.0-74 7.5-7.9 80-8.4 85-80 9.0-94 9.5-9.9 10.0-1 30.0-34.9 10.5-10.9 11.0-11.4…arrow_forwardThe 2020s have been rough to say the least, and the world is desperately in need of some good news. Nay, not just good news, we need a hero. Enter DiegoLinks to an external site., who fathered 800 offspring to save his species (the Española Galapagos tortoise). The population now sits at 2,000 tortoises and Diego is going home. As we saw last week, population size is important. Ideally, this means you started with a lot of genetically diverse founders, but of course that isn’t always the case. In the case of the Española Galapagos tortoises it was 12 females and 2 males. So, often you have to grow your population to stabilize it and ensure there isn’t an unacceptable loss of genetic diversity over time, even if that genetic diversity is low. If you think back to the math from last week and do a little not so fancy algebra, you can see that genetic deterioration occurs at a rate that is the inverse of genetic retention, which you probably remember is 1- (1/2Ne) The above…arrow_forward
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