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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Textbook Question
Chapter 41.4, Problem 1CC
Describe two hypotheses that explain why species diversity is greater in tropical regions than in temperate and polar regions.
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Give three hypotheses for explaining why tropics show greatest levelsof species richness.
What is the definition of species diversity and the concept of biodiversity? Explain each in five (5) sentences.
Describe a hypothetical three community with high species richness but low species evenness
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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- Using the theory of island biogeography, why do we expect the number of species on an island to reach equilibrium?arrow_forwardWhy do ecologists consider both species richness and species evenness when they quantify species diversity?arrow_forwardBesides the relationship used by Paul Ehrlich, can you arrive at a scientific explanation to explain the direct association between stability and diversity of an ecosystem?arrow_forward
- briefly explain why there is species variation?arrow_forwardWhat do you mean lay species diversity? Name two measures of species diversity?arrow_forwardThere are several hypotheses to explain why biodiversity is higher near the equator. State one of these hypotheses, and make an argument AGAINST it being the correct explanation.arrow_forward
- How does the ratio of the proportion of edge to interior habitat change with increasing patch size? How does species diversity change with increasing patch size?arrow_forwardWhat is the complex link between ecological stability and species diversity? In eight sentences, discuss the topic.arrow_forwardWhat is the other component of species diversity besides richness? Briefly describe how two communities of trees might differ in that component.arrow_forward
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