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Measuring Nonlinear Selection
A recent comprehensive review of empirical studies that measured the strength of selection concluded that there was little evidence for strong nonlinear selection in natural populations (KingsolverExpand
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Abundant Genetic Variation + Strong Selection = Multivariate Genetic Constraints: A Geometric View of Adaptation
Evolutionary biology has struggled to explain the coexistence of two basic observations: Genetic variation is found in almost all traits in the presence of strong natural and sexual selection inExpand
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A tale of two matrices: multivariate approaches in evolutionary biology
  • M. W. Blows
  • Biology, Medicine
  • Journal of evolutionary biology
  • 1 January 2007
Two symmetric matrices underlie our understanding of microevolutionary change. The first is the matrix of nonlinear selection gradients (γ) which describes the individual fitness surface. The secondExpand
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A reassessment of genetic limits to evolutionary change
An absence of genetic variance in traits under selection is perhaps the oldest explanation for a limit to evolutionary change, but has also been the most easily dismissed. We review a range ofExpand
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Estimating Nonlinear Selection Gradients Using Quadratic Regression Coefficients: Double Or Nothing?
Abstract The use of regression analysis has been instrumental in allowing evolutionary biologists to estimate the strength and mode of natural selection. Although directional and correlationalExpand
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Species borders: ecological and evolutionary perspectives.
Recent ecological studies on species borders have used a number of approaches to establish causation for specific environmental factors and to identify the traits involved. These includeExpand
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Comparing G: multivariate analysis of genetic variation in multiple populations
The additive genetic variance–covariance matrix (G) summarizes the multivariate genetic relationships among a set of traits. The geometry of G describes the distribution of multivariate geneticExpand
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Natural selection and the reinforcement of mate recognition.
Natural selection on mate recognition may often contribute to speciation, resulting in reproductive character displacement. Field populations of Drosophila serrata display reproductive characterExpand
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ADAPTATION OF RAINBOW FISH TO LAKE AND STREAM HABITATS
Abstract Fish occupy a range of hydrological habitats that exert different demands on locomotor performance. We examined replicate natural populations of the rainbow fishes Melanotaenia eachamensisExpand
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Contrasting Mutual Sexual Selection on Homologous Signal Traits in Drosophila serrata
The nature of male mating preferences, and how they differ from female mating preferences in species with conventional sex roles, has received little attention in sexual selection studies. WeExpand
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