Book contents
- Frontmatter
- Contents
- List of contributors
- Preface
- Acknowledgements
- 1 Speciation and patterns of biodiversity
- 2 On the arbitrary identification of real species
- 3 The evolutionary nature of diversification in sexuals and asexuals
- 4 The poverty of the protists
- 5 Theory, community assembly, diversity and evolution in the microbial world
- 6 Limits to adaptation and patterns of biodiversity
- 7 Dynamic patterns of adaptive radiation: evolution of mating preferences
- 8 Niche dimensionality and ecological speciation
- 9 Progressive levels of trait divergence along a ‘speciation transect’ in the Lake Victoria cichlid fish Pundamilia
- 10 Rapid speciation, hybridization and adaptive radiation in the Heliconius melpomene group
- 11 Investigating ecological speciation
- 12 Biotic interactions and speciation in the tropics
- 13 Ecological influences on the temporal pattern of speciation
- 14 Speciation, extinction and diversity
- 15 Temporal patterns in diversification rates
- 16 Speciation and extinction in the fossil record of North American mammals
- Index
- Plate section
- References
9 - Progressive levels of trait divergence along a ‘speciation transect’ in the Lake Victoria cichlid fish Pundamilia
Published online by Cambridge University Press: 05 June 2012
- Frontmatter
- Contents
- List of contributors
- Preface
- Acknowledgements
- 1 Speciation and patterns of biodiversity
- 2 On the arbitrary identification of real species
- 3 The evolutionary nature of diversification in sexuals and asexuals
- 4 The poverty of the protists
- 5 Theory, community assembly, diversity and evolution in the microbial world
- 6 Limits to adaptation and patterns of biodiversity
- 7 Dynamic patterns of adaptive radiation: evolution of mating preferences
- 8 Niche dimensionality and ecological speciation
- 9 Progressive levels of trait divergence along a ‘speciation transect’ in the Lake Victoria cichlid fish Pundamilia
- 10 Rapid speciation, hybridization and adaptive radiation in the Heliconius melpomene group
- 11 Investigating ecological speciation
- 12 Biotic interactions and speciation in the tropics
- 13 Ecological influences on the temporal pattern of speciation
- 14 Speciation, extinction and diversity
- 15 Temporal patterns in diversification rates
- 16 Speciation and extinction in the fossil record of North American mammals
- Index
- Plate section
- References
Summary
Introduction and outline
Identifying mechanisms of speciation has proven one of the most challenging problems in evolutionary biology, perhaps mainly for two reasons, speciation is not readily accessible to experimental approaches, and rarely to time series analyses. Any one case of speciation can usually be investigated only at a single stage of completion. Cases of parallel ecological speciation driven repeatedly within the same taxon by divergent selection along replicate environmental gradients, have therefore received considerable attention (Schluter & Nagel 1995; Rundle et al. 2000). Several such systems have become major model systems in evolutionary ecology research, including sticklebacks in postglacial lakes (Rundle et al. 2000), Heliconius butterflies (Mallet et al. 1998), leaf beetles (Funk 1998) and Timema walking sticks (Nosil et al. 2002). They provide powerful means of identifying causes of divergence and may lend themselves to examining associations between variation in the environments and variation in the progress towards speciation (Nosil & Harmon, this volume). However, variation in the progress towards speciation among disconnected populations undergoing parallel speciation may be due to different contingency as much as different environments (Taylor & McPhail 2000). Ideally, to trace the correlates of the transition from panmixis to incipient speciation, one would want to study variation in the progress towards speciation in exactly the same pair of species, and along a continuous progress series, to minimize the potential confounding effect of variable historical contingency.
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- Chapter
- Information
- Speciation and Patterns of Diversity , pp. 155 - 176Publisher: Cambridge University PressPrint publication year: 2009
References
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