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Chapter 23: The Origin of Species23.1 Species are the basic units of evolution. (Page 472) http://www.mhhe.com/biosci/genbio/espv2/data/evolution/003/index.html Examine the following sections: Evolution/Speciation/Introduction 3.67 What is a Species? http://www.mhhe.com/biosci/genbio/espv2/data/diversity/009/index.html Examine the following sections: Diversity/Biodiversity/Species 5.12 Introduction 5.14 Biological Species Concept The Nature of Species. (Page 472) 23.2 Species maintain their genetic distinctiveness through barriers to reproduction. (Page 474) http://www.mhhe.com/biosci/genbio/espv2/data/evolution/003/index.html Examine the following sections: Evolution/Speciation/Allopatric Speciation 3.68 Introduction 3.69 Phase 1 3.70 Phase 2 3.71 Allopatric Speciation 3.72 Honeycreepers 3.73 Adaptive Radiation 3.74 Allopatric Speciation Evolution/Speciation/Sympatric Speciation 3.75 Introduction 3.76 Polyploidy 3.77 Domesticated Cotton http://www.mhhe.com/biosci/genbio/espv2/data/diversity/009/index.html Examine the following sections: Diversity/Biodiversity/Species 5.18 Allopatric Speciation Prezygotic Isolating Mechanisms. (Page 474 Postzygotic Isolating Mechanisms. (Page 476) Problems with the Biological Species Concept. (Page 477) 23.3 We have learned a great deal about how species form. (Page 478) http://www.mhhe.com/biosci/genbio/espv2/data/evolution/002/index.html Examine the following sections: Evolution/Processes/Natural Selection 3.26 Natural Selection http://www.mhhe.com/biosci/genbio/espv2/data/evolution/003/index.html Examine the following sections: Evolution/Speciation/Allopatric Speciation 3.71 Allopatric Speciation 3.74 Allopatric Speciation Evolution/Speciation/Sympatric Speciation 3.75 Introduction Reproductive Isolation May Evolve as a By-Product of Evolutionary Change. (Page 478) The Geography of Speciation. (Page 480) 23.4 Clusters of species reflect rapid evolution. (Page 482) http://www.mhhe.com/biosci/genbio/espv2/data/evolution/001/index.html Examine the following sections: Evolution/History/Voyage of the Beagle 3.7 Finches http://www.mhhe.com/biosci/genbio/espv2/data/diversity/009/index.html Diversity/Biodiversity/Species 5.24 Extinction http://www.mhhe.com/biosci/genbio/espv2/data/evolution/004/index.html Examine the following sections: Evolution/History of Life/Extinctions 3.103 Introduction Hawaiian Drosophila. (Page 482) Darwin’s Finches. (Page 483) Lake Victoria Cichlid Fishes. (Page 484) New Zealand Alpine Buttercups. (Page 485) The Pace of Evolution. (Page 486) Speciation and Extinction Through Time. (Page 487) The Future of Evolution. (Page 488) |