EBK CAMPBELL BIOLOGY
11th Edition
ISBN: 9780134505589
Author: Urry
Publisher: PEARSON CO
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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
EBK 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 - The oceans affect the biosphere in all of the...Ch. 52 - Which statement about dispersal is false? (A)...Ch. 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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- MAKE CONNECTIONS Explain how natural selection could increase the resemblance of a harmlessspecies to a distantly related harmful species. In addition to selection, what else could account for a harmlessspecies resembling a closely related harmful species? (See Concept 22.2.)arrow_forward1. From the animals in the figure, which species could have a positive indirect effect on the Possum? 2. If you suspect that competition between Wallabies and Bandicoots is leading to coexistence, describe an example of a piece of evidence that would support your idea. 3. If Tasmanian devils become extinct in the wild due to DFTD, name a species other than cats that you expect would change in abundance as a result. Explain how you think that species' abundance would change and why.arrow_forwardMAke ConneCtIonS Suppose that a sudden changein environmental conditions caused a substantial dropin a population’s carrying capacity. Predict how naturalselection and genetic drift might affect this population.(See Concept 23.3.)arrow_forward
- Protecting biodiversity 1. Why are each of these types of species often targeted in conservation efforts? (Don’t just define theterms, actually explain “why” biologists might focus on these species!)a. Flagship -b. Keystone -c. Indicator -d. Umbrella - 2. Identify the major concerns associated with captive breeding programs. Are there ways some of theseconcerns can be minimized? 3. Consider 2 isolated chaparral preserves in San Diego. If a functional wildlife corridor was added toconnect these together, what benefits would we expect to see (with respect to plant AND animal life)?arrow_forwardCASE STUDY CONNECTION Describe five ecological changes to freshwater communities in the Great Lakes or the Hudson River that have occurred since the invasion of the zebra mussel. Describe one economic impact of the invasion. What is one way to prevent the mussel from spreading to new areas?arrow_forwardQuestion: The island equilibrium model predicts that an island near to other land masses will be able to support ______ species than an island that is far from other land masses because the rate of _________ will be higher due to ___________. A- Fewer; extinction; increased competition B- More; extinction; easier dispersal C- More; immigration; easier dispersal D- Fewer; immigration; reduced competition E- Fewer; immigration; harder dispersalarrow_forward
- Subject (Biology - Ecology) Discuss the relationship of predation in the extinction of some animals. Cite 3 examples where a whole species of an animalwas wiped out because of their predators.arrow_forwardConsider ecological efficiency and energetic hypothesis, why are there few lions than wildebeest in africa ?arrow_forwardWHAT IF? Suppose a scientist finds that a populationof plants growing in a breezy location is more prone toherbivory by insects than a population of the samespecies growing in a sheltered area. Suggest a hypothesisto account for this observation.arrow_forward
- EVOLUTION CONNECTION Explain why adaptations ofparticular organisms to interspecific competition may notnecessarily represent instances of character displacement. Whatwould a researcher have to demonstrate about two competingspecies to make a convincing case for character displacement?arrow_forwardLAB: THE LESSON OF THE KAIBAB INTRODUCTION: The environment may be changed by the things within the biotic community, as well as relationship between organisms and the nonliving environment. The carrying capacity of an ecosystem is the maximum number of organisms that an area can support over time. The density of a population may cause huge changes in the environment so that the environment becomes unstable for the survival of that species. Humans can mess up natural selection and have either a positive or negative effect. OBJECTIVES Graph data on the Kaibab deer population of Arizona from 1905-1939. Analyze the factors that caused the changes in the deer population. PROCEDURE: Before 1905, there was an estimated 4000 deer on almost 30,000 hectacres of land on the Kaibab Plateau in Arizona. The average carrying capacity of the land at that time was estimated to be about 30,000 deer. Being concerned about the low number of deer, President Theodore Roosevelt created the Grand Canyon…arrow_forward
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