Campbell Biology (11th Edition)
11th Edition
ISBN: 9780134093413
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece
Publisher: PEARSON
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Textbook Question
Chapter 54, Problem 3TYU
Based on the intermediate disturbance hypothesis, a community's species diversity is increased by
- (A) frequent massive disturbance.
- (B) stable conditions with no disturbance.
- (C) moderate levels of disturbance.
- (D) human intervention to eliminate disturbance.
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Students have asked these similar questions
The graph above is from a paper by Dave Tilman published in 1994. Which of the following statements is consistent with the graph?
A) The results contradicts the intermediate disturbance hypothesis
B) Increasing diversity increases community stability
C) The results support the intermediate disturbance hypothesis.
Question 3
Which of the following does not directly affect the intensity of competition?
Question 3 options:
A)
Niche overlap.
B)
Niche breadth.
C)
The density of competitors.
D)
The presence of similar species.
Question 4
When disturbance is frequent, competition is often less intense.
Question 4 options:
A) True
B) False
Support for the individualistic model of community structure includes (a) the decline of honeybees because of two species of parasitic mites (b) the identification of fig trees as a keystone species in tropical forests (c) the competitive exclusion of one Paramecium species by another (d) the distribution of trees along a moisture gradient in Wisconsin forests (e) theeffects of the removal of a dominant rodent species from an Arizona desert
Chapter 54 Solutions
Campbell Biology (11th Edition)
Ch. 54.1 - Explain how competition, predation, and mutualism...Ch. 54.1 - According to the principle of competitive...Ch. 54.1 - MAKE CONNECTIONS Figure 24.14 illustrates how a...Ch. 54.2 - What two components contribute to species...Ch. 54.2 - How is a food chain different from a food web?Ch. 54.2 - Prob. 3CCCh. 54.2 - MAKE CONNECTIONS Rising atmospheric CO2, levels...Ch. 54.3 - Why do high and low levels of disturbance usually...Ch. 54.3 - Prob. 2CCCh. 54.3 - WHAT IF? Most prairies experience regular fires,...
Ch. 54.4 - Describe two hypotheses that explain why species...Ch. 54.4 - Prob. 2CCCh. 54.4 - WHAT IF? Based on MacArthur and Wilson's island...Ch. 54.5 - What are pathogens?Ch. 54.5 - WHAT IF? Rabies, a viral disease in mammals, is...Ch. 54 - Interspecific interactions affect the survival and...Ch. 54 - Based on indexes such as Shannon diversity, is a...Ch. 54 - Is the disturbance pictured in figure 54.25 more...Ch. 54 - How have periods of glaciation influenced...Ch. 54 - Prob. 54.5CRCh. 54 - Prob. 1TYUCh. 54 - The principle of competitive exclusion states that...Ch. 54 - Based on the intermediate disturbance hypothesis,...Ch. 54 - According to the island equilibrium model, species...Ch. 54 - Prob. 5TYUCh. 54 - Prob. 6TYUCh. 54 - Prob. 7TYUCh. 54 - The most plausible hypothesis to explain why...Ch. 54 - Community 1 contains 100 individuals distributed...Ch. 54 - Prob. 10TYUCh. 54 - EVOLUTION CONNECTION Explain why adaptations of...Ch. 54 - Prob. 12TYUCh. 54 - WRITE ABOUT A THEME: INTERACTIONS In Batesian...Ch. 54 - Prob. 14TYU
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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
- Determine if each statement is correct or incorrect: 1. Ecosystems with fewer numbers of species tend to be less stable. 2. Increasing numbers of species lead to more redundancy which is bad for the ecosystem. 3. More species mean more niche separation. 4. Species with a low resistance will also have low resilience. 5. Disturbances to ecosystems can be both naturally occurring and human caused. 6. Stresses to ecosystems are useful for removing weaker species and ensuring the strongest survive. 7. Bringing non-native species into an area to increase biodiversity makes the ecosystem more stable.arrow_forwardAn ecosystem that is highly capable of recovering and regenerating through secondary succession after a disturbance is exhibiting high resilience. True Falsearrow_forwardAccording to the resource-ratio hypothesis (a.k.a. R-star), what factor(s) will determine the maximum number of competing species that could possibly coexist in a community? (Note: either one or more-than-one answer could be correct) .what does the number of limiting resources in a community tell us? The number of limiting resources in the community The net primary productivity of the community (NPP). The number of trophic levels that are present in the community. | The intrinsic rate of increase (r) of each species in the community. The colonization rate of each species that can access the habitat.arrow_forward
- 1. An ecologist studying several forest dwelling, insect eating bird species does not find any evidence of interspecific competition. The most likely explanation is (A) lack of a keystone species, (B) resource partitioning, (C) low species richness, (D) pronounced intraspecific competition, (E) coevolution of predator-prey strategies.arrow_forwardWhat is the importance of disturbances and how would they change a community?arrow_forwardWhat is the single greatest threat to biodiversity?(A) overharvesting of commercially important species(B) habitat alteration, fragmentation, and destruction(C) introduced species that compete with native species(D) novel pathogensarrow_forward
- When r is a positive number, the population size is (a) stable (b) increasing (c) decreasing (d) either increasing or decreasing, depending on interference competition (e) either increasing or stable, depending on whether the species is semelparousarrow_forwardWhich of the following statements about the effects of clear-cutting on the Amazonian forest are true? Select all that apply. a) Soil moisture is likely to decline. b) Nutrient export is likely to decline. c) Species diversity is likely to decline. d) Atmospheric CO2 is likely to decline.arrow_forwardFor each of the following statements about a keystone species, select true or false. 1. Keystone species generally have a low abundance compared to other species in the community. [ Select ] 2. Removal of a keystone species leads to large changes int he community. [ [ Select ] 3. Keystone species directly interact with every other species in the community. [ [ Select ] 4. Relative to its population size, keystone species have a high impact on the community. [ [ Select ]arrow_forward
- In the TED Talk presented in this module, Why Bees are Disappearing, Marla Spivak outlines the plight of bees. The acronym HIPPO, coined by E. O. Wilson, identifies the primary causes of biodiversity loss in order of descending importance: • Habitat Loss • Invasive Species • Pollution • Population of Humans Overharvesting Resourcesarrow_forwardGive some ecosystem processes and services in a community that contributes to our daily life. Justify.arrow_forwardWhich of the following best predicts the consequences of introducing small Indian mongoose to an island where they did not previously exist?( Invasive species) (Choice A) A The mongoose population will grow rapidly, disrupting the island's community structure by preying on native animals. (Choice B) B The mongoose population size will likely remain smal, and as a result the mongoose population will not be able to outcompete other predator populations for resources. (Choice C) Without any natural diseases, the mongoose population will become established and help increase the species diversity of the island. (Choice D) D Without its typical food sources, the mongoose population will not be able to become established, and the island ecosystem will remain stable. answer explainarrow_forward
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