Study Guide for Campbell Biology
11th Edition
ISBN: 9780134443775
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece, Martha R. Taylor, Michael A. Pollock
Publisher: PEARSON
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Textbook Question
Chapter 54, Problem 7IQ
Why would the fact that tropical communities are “older” than temperate or polar communities contribute to greater species diversity?
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Chapter 54 Solutions
Study Guide for Campbell Biology
Ch. 54 - When two spiny mouse species coexist, Acomys...Ch. 54 - Name the type of mimicry described in each of the...Ch. 54 - Name and give examples of the interspecific...Ch. 54 - Tide pool 1 has three species of sea urchins with...Ch. 54 - Prob. 5IQCh. 54 - Describe the effects of the alder stage on soil...Ch. 54 - Why would the fact that tropical communities are...Ch. 54 - a. How do the rates of immigration and extinction...Ch. 54 - Why are ecologists trapping and testing migrating...Ch. 54 - Complete the following concept map to organize...
Ch. 54 - Community ecologists develop models or hypotheses...Ch. 54 - Two allopatric species of Galapagos finches have...Ch. 54 - The greater blue-ringed octopus (Hapalochlaena...Ch. 54 - Two other species of octopus (H. maculosa and H....Ch. 54 - Two species, A and B, occupy adjoining...Ch. 54 - Two shops in the same block are selling coffee and...Ch. 54 - A palatable (good-tasting) prey species may defend...Ch. 54 - Most humans are host to mites of the genus Demodex...Ch. 54 - The species richness of a community refers to the...Ch. 54 - You have a friend who is a strict vegan; that is,...Ch. 54 - Ecologists survey the tree species in two forest...Ch. 54 - When one species was removed from a tide pool, the...Ch. 54 - Invasive species often reach a large biomass...Ch. 54 - Why do most food chains consist of only three to...Ch. 54 - According to the top-down (trophic cascade) model...Ch. 54 - During succession, inhibition by early species a....Ch. 54 - According to the nonequilibrium model, a. chance...Ch. 54 - Which of the following shows a mismatch between...Ch. 54 - Prob. 18TYKCh. 54 - A major explanation for the decline in species...Ch. 54 - Prob. 20TYK
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- Some ecologists have dismissed the terms "R" and "K" and have replaced them with the terms "maintenance" and "dispersal." Match the new terms to the old terms and explain how they are accurately used.arrow_forwardWhy do high and low levels of disturbance usually reducespecies diversity? Why does an intermediate level ofdisturbance promote species diversity?arrow_forwardHow is the structural complexity of habitats relevant to species richness?arrow_forward
- Why do ecologists consider both species richness and species evenness when they quantify species diversity?arrow_forwardWhy does habitat fragmentation lead to an increased abundance of species that prefer ecotones?arrow_forwardThe most plausible hypothesis to explain why species richness is higher in tropical than in temperate regions is thata) tropical regions generally have more available water and higher levels of solar radiation.b) diversity increases as evapotranspiration decreases.c) higher temperatures cause more rapid speciation.d) tropical communities are younger.arrow_forward
- Natural processes of species formation and extinction emerge on a timescale measured in millions of years, whereas human-mediated extinctions are measured on a scale of years to decades. How does this discrepancy complicate our attempts to conserve biodiversity?arrow_forwardHow 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_forwarda) Provide the terms necessary to fill in the blanks (i - v) in the diagram below that represents two key components of ecosystem ecology. Be sure to use terminology consistent with the rest of the diagram. b) What fundamental ecosystem processes are illustrated in the diagram below by the solid arrows and by dashed arrows?arrow_forward
- Between Tenerife and La Gomera, which island would be expected to have a greater number of species? In your discussion of why, focus on the primary difference between the islands (size or distance from the mainland) A) Tenerife B) La Gomera and whyarrow_forwardWe tend to regard generalists or “weedy” species as less interesting and less valuable than rare and highly specialized endemic species. What values or assumptions underlie this attitude?arrow_forwardWhy is it difficult to directly observe succession in most ecological communities?arrow_forward
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