Incluye bibliografía: páginas 244-284 índice: páginas 285-288

Preface.. 1 The origins of ecological diversity.. l. 1 Introduction.. 1.2 The issues.. 1.3 Fifty years later.. 1.4 General implications.. 1.5 The book.. 2 Detecting adaptive radiation.. 2.1 Introduction.. 2.2 Definitions.. 2.3 Examples.. 2.4 Adaptation vs adaptive radiation.. 2.5 Discussion.. 3 The progress of adaptive radiation.. 3.1 Introduction.. 3.2 Generalist ancestors, specialized descendants?.. 3.3 Repeatable rules of niche spread.. 3.4 Replicate radiations . 3.5 Phenotypic evolution near the end of adaptive radiation.. 3.6 Discussion.. 4 The ecological theory of adaptive radiation.. 4.1 Introduction.. 4.2 The ecological theory.. 4.3 Extensions and alternatives.. 4.4 Discussion.. 5 Divergent natural selection between environments.. 5.1 Introduction.. 5.2 Natural selection and the adaptive landscape.. 5.3 Comparison with the neutral expectation.. 5.4 Reciprocal transplant experiments.. 5.5 Direct measurements of natural selection.. 5.6 Estimating adaptive landscapes from environments.. 5.7 How do adaptive peak shifts occur?.. 5.8 Discussion.. 6 Divergence and species interactions.. 6.1 Introduction.. 6.2 Divergence between competitors.. 6.3 Observational evidence.. 6.4 Evidence from prediction.. 6.5 Evidence from field experiments.. 6.6 Other interactions promoting divergence.. 6.7 Discussion.. 7 Ecological opportunity.. 7.1 Introduction.. 7.2 Ecological opportunity and morphological divergence.. 7.3 Ecological opportunity and speciation rate.. 7.4 Key evolutionary innovations.. 7.5 Discussion.. 8 The ecological basis of speciation.. 8.1 Introduction.. 8.2 Models of ecological speciation.. 8.3 Tests of ecological speciation.. 8.4 Divergent sexual selection.. 8.5 Discussion

9 Divergence along genetic lines of least resistance.. 9.1 Introduction.. 9.2 Quantitative genetic framework.. 9.3 Divergence along genetic lines of least resistance.. 9.4 Divergent natural selection in retrospect.. 9.5 Discussion.. 10 The ecology of adaptive radiation.. 10.1 Finale.. 10.2 General features of adaptive radiation.. 10.3 Fate of the ecological theory.. References.. Index

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 cichilid fishes, the Hawaiian silverswords, and Darwin's Galapagos 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 were 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. The text re-evaluates the ecological theory, along with its most significant extensions and challenges, in the light of all the recent evidence. It is the first full exploration of the causes of adaptive radiation in decades. Inglés