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 14TYK
Summary Introduction

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Based on the predictions of the theory of island biogeography, develop and apply hypotheses about what might happen as patches of natural habitats get smaller and smaller.

Introduction:

Island biogeography is the study of factors that influence species composition and species richness on islands. MacArthur and Wilson developed the equilibrium theory of island biogeography to explain variations in species richness on islands of different size and different levels of isolation from other landmasses. They propose the hypothesis that the number of species on any island was governed by a give and take between two processes: the immigration of new species to the island and the extinction of native species of the island.

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Use the data in the Table below to answer the following 4 questions. 1. Create a graph (label this as Figure 1) of species richness and species diversity over the study years. Upload your graph in the next question. 2. a) When was species richness lowest, and when was it highest? b)When was species diversity lowest, and when was it highest? 3. What is the effect of invasive species H on community structure in year 3 compared to year 8? 4. What is the overall impact of invasive species H on the species richness and species diversity of this community? TABLE Species Richness Species Diversity YEAR 3 3 0.995 YEAR 8 5 1.516 YEAR 12 5 1.351 YEAR 15 6 1.197
Two islands exist in the eastern Pacific. The animal and plant life on both islands were wiped out by a freak storm at the same time. Island "A" is 100 miles off the coast of Peru; whereas island "B" is only 10 miles off Peru's coast. Island "A" is much smaller than island "B" (20 square miles as opposed to 75 square miles). Which island has a higher species richness equilibrium  ? Explain why using the Theory of Island Biogeography.
Environments with low frequency and intensity of disturbance tend to have ________ species diversity because ______. Group of answer choices A) low; the best competitors exclude any other species B) high; disturbances kill off a large number of individuals C) low; there are fewer late-successional species than early-successional species D) high; more species can colonize over a longer period of time   Question: Answer choice selection is either: Burkina Faso or Italy for all three answer choices
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