Biology: The Dynamic Science (MindTap Course List)
Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
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Chapter 53, Problem 9TYK
Summary Introduction

Introduction:

The islands are small lands, which are situated in isolation from the mainland. The species inhabiting the island keeps on fluctuating to maintain equilibrium. The species inhabiting the island is influenced by the species present on the nearby mainland or islands. The equilibrium theory of island biogeography explains the pattern of the presence of species on an island.

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Which of the following statements best represents the productivityhypothesis regarding species richness?a. The larger the area, the greater the number of species that will befound there.b. Temperate regions have a lower species richness due to the lack oftime available for migration after the last Ice Age.c. The number of species in a particular community is directly relatedto the amount of available energy.d. As invertebrate productivity increases, species richness will increase.e. Species richness is not related to primary productivity.
Inmost ecological communities, we find:a.more rare species than moderately common or very common ones.b.more very common species than moderately common or rare ones.c. norare species—apparently “rare” species are artifacts of incompletesampling.d.roughly equal proportions of rare, moderately common, and very commonspecies.e. more moderately common species than rare orvery common ones.
Using island biogeography theory, on which island would you expect to find a greater number of species   A small island of a large island (both, the same distance from the mainland)? A 5km squared island from the mainland, or a 5 km squared island closer to the mainland
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