Research Topics
| S GavriletsSummaryAffiliation: University of Tennessee Country: USA Publications
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Publications
Rapid transition towards the Division of Labor via evolution of developmental plasticitySergey Gavrilets
Department of Ecology and Evolutionary Biology, National Institute for Mathematical and Biological Synthesis, University of Tennessee, Knoxville, Tennessee, United States of America
PLoS Comput Biol 6:e1000805. 2010..My approach is expandable in a number of directions including the emergence of multiple cell types, complex organs, or casts of eusocial insects...
Adaptive radiation: contrasting theory with dataSergey Gavrilets
Department of Ecology, National Institute for Mathematical and Biological Synthesis, University of Tennessee, Knoxville, TN 37996, USA
Science 323:732-7. 2009..In almost all cases, more data are needed. Future progress in our understanding of adaptive radiation will be most successful if theoretical and empirical approaches are integrated, as has happened in other areas of evolutionary biology...
Dynamics of alliance formation and the egalitarian revolutionSergey Gavrilets
Department of Ecology and Evolutionary Biology, University of Tennessee, Knoxville, Tennessee, USA
PLoS ONE 3:e3293. 2008..These observations suggest that the evolutionary dynamics of human coalitions can only be understood in the context of social networks and cognitive evolution...
Effects of environmental heterogeneity on victim-exploiter coevolutionSergey Gavrilets
Department of Ecology, University of Tennessee, Knoxville, Tennessee 37996, USA
Evolution 62:3100-16. 2008..This behavior is most likely at intermediate migration rates. In this case, the system can exhibit high spatial subdivision as measured by F(ST) values but relatively low local adaptation...
Case studies and mathematical models of ecological speciation. 2. Palms on an oceanic islandSergey Gavrilets
Department of Ecology and Evolutionary Biology, University of Tennessee, Knoxville, TN 37996, USA
Mol Ecol 16:2910-21. 2007....
Case studies and mathematical models of ecological speciation. 1. Cichlids in a crater lakeSergey Gavrilets
Department of Ecology and Evolutionary Biology, University of Tennessee, Knoxville, TN 37996, USA
Mol Ecol 16:2893-909. 2007....
The dynamics of Machiavellian intelligenceSergey Gavrilets
Department of Ecology and Evolutionary Biology, University of Tennessee, Knoxville, TN 37996, USA
Proc Natl Acad Sci U S A 103:16823-8. 2006....
The Maynard Smith model of sympatric speciationSergey Gavrilets
Department of Ecology and Evolutionary Biology, University of Tennessee, Knoxville, 37996, USA
J Theor Biol 239:172-82. 2006....
Perspective: models of speciation: what have we learned in 40 years?Sergey Gavrilets
Department of Ecology and Evolutionary Biology, Department of Mathematics, University of Tennessee, Knoxville, Tennessee 37996, USA
Evolution 57:2197-215. 2003..Sympatric speciation is promoted if costs of being choosy are small (or absent) and if linkage between the loci experiencing disruptive selection and those controlling assortative mating is strong...
Sympatric speciation by sexual conflictSergey Gavrilets
Department of Ecology, University of Tennessee, Knoxville, TN 37996 1610, USA
Proc Natl Acad Sci U S A 99:10533-8. 2002..Second, under certain conditions, males respond to female diversification by diversifying themselves. This response results in the formation of reproductively isolated clusters of genotypes that emerge sympatrically...
The evolution of female mate choice by sexual conflictS Gavrilets
Department of Ecology, University of Tennessee, Knoxville 37996 1610, USA
Proc Biol Sci 268:531-9. 2001..In contrast to tradition explanations of costly female mate choice, which rely on indirect genetic benefits, our model shows that mate choice can be generated as a side-effect of females evolving to reduce the direct costs of mating...
Rapid evolution of reproductive barriers driven by sexual conflictS Gavrilets
Department of Ecology and Evolutionary Biology, University of Tennessee, Knoxville 37996 1610, USA
Nature 403:886-9. 2000..Rapid evolution of reproductive barriers driven by sexual conflict may explain increased speciation rates after colonization of new habitats ('adaptive radiation') and high species richness in resource-rich environments...
Patterns of parapatric speciationS Gavrilets
Department of Ecology and Evolutionary Biology, University of Tennessee, Knoxville 37996 1610, USA
Evolution 54:1126-34. 2000..With high mutation rates, high local densities, or with moderate genetic changes sufficient for reproductive isolation, speciation events are expected to involve mainly peripheral populations...
Waiting time to parapatric speciationS Gavrilets
Department of Ecology and Evolutionary Biology, University of Tennessee, Knoxville 37996, USA
Proc Biol Sci 267:2483-92. 2000..For a wide range of parameter values, the actual duration of parapatric speciation is of the order of one over the mutation rate. In general, parapatric speciation is expected to be triggered by changes in the environment...
Dynamics of speciation and diversification in a metapopulationS Gavrilets
Department of Ecology, University of Tennessee, Knoxville 37996, USA
Evolution 54:1493-501. 2000....
Pattern, process and geographic modes of speciationB M Fitzpatrick
Department of Ecology and Evolutionary Biology, University of Tennessee, Knoxville, TN 37996, USA
J Evol Biol 22:2342-7. 2009..Advances in the study of speciation have come from studies of the processes that constrain or promote divergence, and how they are affected by geography...
Rapid parapatric speciation on holey adaptive landscapesS Gavrilets
Department of Ecology and Evolutionary Biology, University of Tennessee, Knoxville 37996, USA
Proc Biol Sci 265:1483-9. 1998..Numerical examples relevant to the theory of centrifugal speciation and to the conjectures about the fate of 'ring species' and 'sexual continuums' are presented...
Percolation on the fitness hypercube and the evolution of reproductive isolationS Gavrilets
Division of Environmental Studies, University of California, Davis 95616, USA
J Theor Biol 184:51-64. 1997..We argue that macroevolution and speciation on "rugged" fitness landscapes proceed according to the properties of the corresponding holey landscapes...
Genetic models of homosexuality: generating testable predictionsSergey Gavrilets
Department of Ecology and Evolutionary Biology, University of Tennessee, Knoxville, TN 37996, USA
Proc Biol Sci 273:3031-8. 2006....
Dynamic patterns of adaptive radiationSergey Gavrilets
Department of Ecology, University of Tennessee, Knoxville, TN 37996, USA
Proc Natl Acad Sci U S A 102:18040-5. 2005..We show that a great majority of speciation events are concentrated early in the phylogeny. Our results emphasize the importance of ecological opportunity and genetic constraints in controlling the dynamics of adaptive radiation...
The dynamics of two- and three-way sexual conflicts over matingSergey Gavrilets
Department of Ecology and Evolutionary Biology, University of Tennessee, Knoxville, TN 37996, USA
Philos Trans R Soc Lond B Biol Sci 361:345-54. 2006..Models also show that sexual conflict can result in the evolution of monandry in an initially polyandrous species and in the evolution of random mating in a population initially exhibiting non-random mating...
What, if anything, is sympatric speciation?B M Fitzpatrick
Department of Ecology and Evolutionary Biology, University of Tennessee, Knoxville, TN 37996, USA
J Evol Biol 21:1452-9. 2008..Rather, we believe this context can be better understood by modelling and measuring quantities, such as gene flow and selection, rather than assigning cases to discrete categories like sympatric and allopatric speciation...
One-locus two-allele models with maternal (parental) selectionS Gavrilets
Department of Ecology and Evolutionary Biology and Department of Mathematics, University of Tennessee, Knoxville, Tennessee 37996 1610, USA
Genetics 149:1147-52. 1998..I demonstrate that interactions of maternal and paternal selection can result in stable oscillations of genotype frequencies. A necessary condition for cycling is strong selection...
Case studies and mathematical models of ecological speciation. 3: Ecotype formation in a Swedish snailS Sadedin
Department of Ecology and Evolutionary Biology, University of Tennessee, Knoxville, TN 37996, USA
Mol Ecol 18:4006-23. 2009..The complex interactions observed between local adaptation and nonrandom mating imply that generalization from data is unreliable without quantitative theory for speciation...
Sexually antagonistic "zygotic drive" of the sex chromosomesWilliam R Rice
Department of Ecology, Evolution, and Marine Biology, University of California Santa Barbara, Santa Barbara, CA, USA
PLoS Genet 4:e1000313. 2008..It also fosters a new genetic hypothesis for the evolution of enigmatic fitness-reducing traits like the high frequency of spontaneous abortion, sterility, and homosexuality observed in humans...
Multilocus genetics and the coevolution of quantitative traitsMichael Kopp
Department of Ecology and Evolutionary Biology, University of Tennessee, 1416 Circle Drive, Knoxville, Tennessee 37996, USA
Evolution 60:1321-36. 2006..Second, the genetic variances change dynamically, which in turn significantly affects the dynamics of the mean trait values. In particular, the dynamics tend to be destabilized by an increase in the number of loci...
The evolution of sex-specific grandparental harmWilliam R Rice
Department of Ecology, Evolution and Marine Biology, University of California, Santa Barbara, CA 93106, USA
Proc Biol Sci 277:2727-35. 2010..We conclude that SA-zygotic drive is plausibly operating in humans via sexually antagonistic grandparental care...
Case studies and mathematical models of ecological speciation. 4. Hybrid speciation in butterflies in a jungleEdgar A Duéñez-Guzmán
Department of Ecology and Evolutionary Biology, University of Tennessee, Knoxville, TN 37996, USA
Evolution 63:2611-26. 2009..melpomene-type ecomorph in the hybrid species. However, much more work (both empirical and theoretical) is necessary to be able to make more definite conclusions on the importance of homoploid hybrid speciation in animals...
Percolation on fitness landscapes: effects of correlation, phenotype, and incompatibilitiesJanko Gravner
Department of Mathematics, University of California, Davis, CA 95616, USA
J Theor Biol 248:627-45. 2007..Finally, we demonstrate that the discrete NK model shares some signature properties of models with high correlations...
Sexual conflict via maternal-effect genes in ZW speciesPaige M Miller
Department of Ecology, Evolution, and Marine Biology, University of California, Santa Barbara, CA 93106, USA
Science 312:73. 2006..Selection on maternal-effect genes may substantially alter the evolution of ZW compared with XY systems...
Sexually antagonistic chromosomal cuckoosWilliam R Rice
Department of Ecology, Evolution and Marine Biology, University of California, Santa Barbara, CA 93106, USA
Biol Lett 5:686-8. 2009..Here we quantify and contrast this selection on the X and Y, or Z and W, sex chromosomes. We also develop a hypothesis for how this selection can contribute to the decay of the non-recombining sex chromosome...
The evolution of female mating preferences: differentiation from species with promiscuous males can promote speciationMark A McPeek
Department of Biological Sciences, Dartmouth College, Hanover, New Hampshire 03755, USA
Evolution 60:1967-80. 2006..We suggest that this mode of speciation may have been particularly prevalent in response to the cycles of climatic change throughout the Quaternary that forced the assembly and disassembly of entire communities on a continentwide basis...
Genetic differentiation by sexual conflictTakehiko I Hayashi
Research Center for Chemical Risk Management, National Institute of Advanced Industrial Science and Technology, 16 1 Onogawa, Tsukuba, Ibaraki 305 8589, Japan
Evolution 61:516-29. 2007..Sympatric speciation was possible but only under restrictive conditions. Our simulations also highlight the importance of stochastic effects in the dynamics of sexual conflict...
