Campbell Biology in Focus
3rd Edition
ISBN: 9780134710679
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Rebecca Orr
Publisher: PEARSON
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Chapter 41.3, Problem 3CC
WHAT IF? Most prairies experience regular fires, typically every few years. If these disturbances were relatively modest, how would the species diversity of a prairie likely be affected if no burning occurred for 100 years? Explain your answer.
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Chapter 41 Solutions
Campbell Biology in Focus
Ch. 41.1 - Explain how interspecific competition, predation,...Ch. 41.1 - According to the principle of competitive...Ch. 41.1 - MAKE CONNECTIONS Figure 22.13 illustrates how a...Ch. 41.2 - What two components contribute to species...Ch. 41.2 - How is a food chain different from a food web?Ch. 41.2 - WHAT IF? Consider a grassland with five trophic...Ch. 41.2 - MAKE CONNECTIONS Rising atmospheric CO2 levels...Ch. 41.3 - Why do high and low levels of disturbance usually...Ch. 41.3 - During succession, how might the early species...Ch. 41.3 - WHAT IF? Most prairies experience regular fires,...
Ch. 41.4 - Describe two hypotheses that explain why species...Ch. 41.4 - Describe how an islands size and distance from the...Ch. 41.4 - WHAT IF? Based on MacArthur and Wilsons island...Ch. 41.5 - What are pathogens?Ch. 41.5 - Prob. 2CCCh. 41 - The feeding relationships among the species in a...Ch. 41 - Prob. 2TYUCh. 41 - Prob. 3TYUCh. 41 - Community 1 contains 100 individuals distributed...Ch. 41 - Prob. 5TYUCh. 41 - SCIENTIFIC INQUIRY An ecologist studying plants in...Ch. 41 - FOCUS ON EVOLUTION Explain why adaptations of...Ch. 41 - FOCUS ON INFORMATION In Bateslan mimicry, a...Ch. 41 - Prob. 9TYU
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- INTERTRET DATA Scientists have compiled databases of large forest wildfires in the western United States and compared them to climate and land-surface data. Examine the graph showing wildfire frequency compared to average springsummer temperature. Do you see a correlation? If so, describe it. Based on these data, do you think that climate warming is causing more wildfires? Explain your answer.arrow_forwardQuestion: The figure below shows the relative abundance (y axis) of shrubs in an ecosystem in the years following a fire (x axis). The shrubs in this ecosystem fall into two functional groups: fire recruiters and fire persisters. If fire frequency increased significantly in this ecosystem, which group would be benefited? Choose one of the option below A- Both functional groups would benefit equally B- Fire persister species C- Fire recruiter speciesarrow_forwardDescribe the San Francisco Estuary Project. How has population growth in the San Francisco Bay Area affected the estuary? How has the habitat fracture in the San Francisco Estuary been increased by human behavior? How is the project focusing on maintaining the biodiversity of plants and animals in the San Francisco Estuary?arrow_forward
- Conservation 1. Contrast wilderness areas with wildlife refuges. Do you think each of these areas continue to fulfilltheir original purpose for which they were created? 2. How do the principles of island biogeography (the “island” drawings & examples in the lecture video)highlight these two important issues for conservation, especially for areas in the middle of developedlandscapes?a. Size of area preserved -b. Distance from “mainland” - 3. What is the “edge” and “core” area of a reserve? Why is it so important to maximize “core” habitats?arrow_forwardWHAT IF? Suppose a new fishery is discovered, andyou are put in charge of developing it sustainably. Whatecological data might you want on the fish population? What criteria would you apply for the fishery’sdevelopment?arrow_forwardProtecting 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_forward
- WHAT IF? In what way is the Kissimmee River project a more complete ecological restoration than theMaungatautari project (see Figure 55.17)?arrow_forwardNeed help Please answer Both The Tolerance model of succession could be summarized as: Live and let live Arrive and Survive Feed a fed horse Stop to smell the roses In which situation would the facilitation model of succession be most likely? The deciduous forest After a volcanic eruption In a climax seral stage During the wintertime in the Mojave desertarrow_forwardWHAT IF? Suppose you were studying a species thathas a population cycle of about ten years. How longwould you need to study the species to determine if itspopulation size were declining? Explain.arrow_forward
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