The Ecology of Adaptive Radiation (Google eBook)

Front Cover
Oxford University Press, Aug 31, 2000 - 296 pages
2 Reviews
Adaptive radiation is the evolution of diversity within a rapidly multiplying lineage. It can cause a single ancestral species to differentiate into an impressively vast array of species inhabiting a variety of environments. Much of life's diversity has arisen during adaptive radiations. Some of the most famous recent examples include the East African cichlid fishes, the Hawaiian silverswords, and of course, Darwin's Gal--aacute--;pagos finches,. This book evaluates the causes of adaptive radiation. It focuses on the 'ecological' theory of adaptive radiation, a body of ideas that began with Darwin and was developed through the early part of the 20th Century. This theory proposes that phenotypic divergence and speciation in adaptive radiation are caused ultimately by divergent natural selection arising from differences in environment and competition between species. In The Ecology of Adaptive Radiation the author re-evaluates the ecological theory, along with its most significant extensions and challenges, in the light of all the recent evidence. This important book is the first full exploration of the causes of adaptive radiation to be published for decades, written by one of the world's best young evolutionary biologists.
  

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Contents

62 Divergence between competitors
124
63 Observational evidence
129
64 Evidence from prediction
147
65 Evidence from field experiments
150
66 Other interactions promoting divergence
152
67 Discussion
161
Ecological opportunity
163
72 Ecological opportunity and morphological divergence
164

The progress of adaptive radiation
36
32 Generalist ancestors specialized descendants?
37
33 Repeatable rules of niche spread
49
34 Replicate radiations
55
35 Phenotypic evolution near the end of adaptive radiation
59
36 Discussion
64
The ecological theory of adaptive radiation
65
43 Extensions and alternatives
71
44 Discussion
83
Divergent natural selection between environments
84
52 Natural selection and the adaptive landscape
85
53 Comparison with the neutral expectation
90
54 Reciprocal transplant experiments
95
55 Direct measurements of natural selection
104
56 Estimating adaptive landscapes from environments
111
57 How do adaptive peak shifts occur?
115
58 Discussion
121
Divergence and species interactions
123
73 Ecological opportunity and speciation rate
175
74 Key evolutionary innovations
181
75 Discussion
186
The ecological basis of speciation
188
82 Models of ecological speciation
189
83 Tests of ecological speciation
197
84 Divergent sexual selection
207
85 Discussion
212
Divergence along genetic lines of least resistance
215
92 Quantitative genetic framework
216
93 Divergence along genetic lines of least resistance
224
94 Divergent natural selection in retrospect
231
95 Discussion
235
The ecology of adaptive radiation
236
103 Fate of the ecological theory
238
REFERENCES
244
INDEX
285
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