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The Empirical Inadequacy of Species Cohesion by Gene Flow

Published online by Cambridge University Press:  01 January 2022

Abstract

This paper brings needed clarity to the influential view that species are cohesive entities held together by gene flow, and then develops an empirical argument against that view: Neglected data suggest gene flow is neither necessary nor sufficient for species cohesion. Implications are discussed.

Type
Philosophy of Biology
Copyright
Copyright © The Philosophy of Science Association

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Footnotes

I'm grateful to Rob Wilson, Alex Rueger and Lindley Darden for important comments on earlier drafts, and to Joseph Nagel, Heather Proctor, Ken Bond, members of the DC History and Philosophy of Biology reading group, and audience members at the November 2006 meeting of the PSA, for helpful comments or discussion. Social Sciences and Humanities Research Council of Canada fellowship 752-2005-1208 supported research.

References

Baker, Jason M. (2005), “Adaptive Speciation: The Role of Natural Selection in Mechanisms of Geographic and Non-geographic Speciation”, Adaptive Speciation: The Role of Natural Selection in Mechanisms of Geographic and Non-geographic Speciation 36:303326.Google ScholarPubMed
Barker, Matthew J. (2005), Species of Biology: The Cohesion and Individuality of Biological Species. M.A. Thesis. Edmonton: University of Alberta.Google Scholar
Bilodeau, Lelania A., Felder, Darryl L., and Neigel, Joseph E. (2005), “Population Structure at Two Geographic Scales in the Burrowing Crustacean Callichirus islagrande (Decapoda, Thalassinidea): Historical and Contemporary Barriers to Planktonic Dispersal”, Population Structure at Two Geographic Scales in the Burrowing Crustacean Callichirus islagrande (Decapoda, Thalassinidea): Historical and Contemporary Barriers to Planktonic Dispersal 59:151164.Google ScholarPubMed
Brogaard, Berit (2004), “Species as Individuals”, Species as Individuals 19:223242.Google Scholar
Bush, Guy L. (1994), “Sympatric Speciation in Animals, New Wine in Old Bottles”, Sympatric Speciation in Animals, New Wine in Old Bottles 9:285288.Google ScholarPubMed
Chesser, R. K. (1983), “Genetic Variability within and among Populations of the Black-tailed Prairie Dog”, Genetic Variability within and among Populations of the Black-tailed Prairie Dog 37:320331.Google ScholarPubMed
Eckenwalder, J. E. (1984), “Natural Intersectional Hybridization between North American Species of Populus (Salicaceae) in Sections Aigeiros and Tacamahaca. 2. Taxonomy”, Natural Intersectional Hybridization between North American Species of Populus (Salicaceae) in Sections Aigeiros and Tacamahaca. 2. Taxonomy 62:325335.Google Scholar
Ehrlich, Paul R. (1965), “The Population Biology of the Butterfly, Euphydryas editha. II. The Structure of the Jasper Ridge Colony”, The Population Biology of the Butterfly, Euphydryas editha. II. The Structure of the Jasper Ridge Colony 9:327336.Google Scholar
Ehrlich, Paul R., and Raven, Peter H. (1969), “Differentiation of Populations”, Differentiation of Populations 165:12281232.Google ScholarPubMed
Eldredge, Niles and Gould, Stephen J. (1972), “Punctuated Equilibria: An Alternative to Phyletic Gradualism”, in M Schopf, T. J. (ed.), Models in Paleobiology. San Francisco: Freeman Cooper, 82115.Google Scholar
Endler, John A. (1973), “Gene Flow and Population Differentiation”, Gene Flow and Population Differentiation 179:243250.Google ScholarPubMed
Ereshefsky, Marc (1988), “Discussion: Axiomatics and Individuality: A Reply to Williams’ ‘Species are Individuals’”, Discussion: Axiomatics and Individuality: A Reply to Williams’ ‘Species are Individuals’ 55:427434.Google Scholar
Ereshefsky, Marc (1991), “Species, Higher Taxa, and the Units of Evolution”, Species, Higher Taxa, and the Units of Evolution 58:84101.Google Scholar
Futuyma, Douglas (1998), Evolutionary Biology. 3rd ed. Sunderland, MA: Sinauer Associates.Google Scholar
Ghiselin, Michael (1997), Metaphysics and the Origin of Species. Albany: State University of New York Press.Google Scholar
Grant, V. (1980), “Gene Flow and the Homogeneity of Populations”, Gene Flow and the Homogeneity of Populations 99:157169.Google Scholar
Hellberg, Michael E., Burton, Ronald S., Neigel, Joseph E., and Palumbi, Stephen R. (2002), “Genetic Assessment of Connectivity among Marine Populations”, Genetic Assessment of Connectivity among Marine Populations 70 (Supplement): 273290.Google Scholar
Hull, David (1981), “Kitts and Kitts and Caplan on Species”, Kitts and Kitts and Caplan on Species 48:141152.Google Scholar
Labine, P. A. (1966), “The Population Biology of the Butterfly, Euphydryas editha. IV. Sperm Precedence—a Preliminary Report”, The Population Biology of the Butterfly, Euphydryas editha. IV. Sperm Precedence—a Preliminary Report 20:335336.Google ScholarPubMed
Lande, R. (1980), “Genetic Variation and Phenotypic Evolution during Allopatric Speciation”, Genetic Variation and Phenotypic Evolution during Allopatric Speciation 116:463479.Google Scholar
Mayr, Ernst (1970), Populations, Species and Evolution. Cambridge, MA: Harvard University Press.Google Scholar
Morjan, Carrie L., and Rieseberg, Loren H. (2004), “How Species Evolve Collectively: Implications of Gene Flow and Selection for the Spread of Advantageous Alleles”, How Species Evolve Collectively: Implications of Gene Flow and Selection for the Spread of Advantageous Alleles 13:13411356.Google ScholarPubMed
Neigel, Joseph E. (1997), “A Comparison of Alternative Strategies for Estimating Gene Flow from Genetic Markers”, A Comparison of Alternative Strategies for Estimating Gene Flow from Genetic Markers 28:105128.Google Scholar
Palumbi, S. (2003), “Population Genetics, Demographic Connectivity and the Design of Marine Reserves”, Population Genetics, Demographic Connectivity and the Design of Marine Reserves 13:S146S158.Google Scholar
Savolainen, Vincent, Anstett, Marie-Charlotte, Lexer, Christian, Hutton, Ian, Clarkson, James J., Norup, Maria V., Powell, Martyn P., Springate, David, Salamin, Nicolas, and Baker, William J. (2006), “Sympatric Speciation in Palms on an Oceanic Island”, Sympatric Speciation in Palms on an Oceanic Island 441:210213.Google Scholar
Sorenson, Michael D., Sefc, Kristina M., and Payne, Robert B. (2003), “Speciation by Host Switch in Brood Parasitic Indigobirds”, Speciation by Host Switch in Brood Parasitic Indigobirds 424:928931.Google ScholarPubMed
Templeton, Alan R. (1989), “The Meaning of Species and Speciation: A Genetic Perspective”, in Otte, Daniel and Endler, John A. (eds.), Speciation and Its Consequences. Sunderland, MA: Sinauer Associates, 327.Google Scholar
van Alphen, J. J. M., Seehausen, O., and Galis, Frietson (2004), “Speciation and Radiation in African Haplochromine Cichlids”, in Dieckmann, U., Doebeli, M., Metz, J. A. J., and Tautz, D. (eds.), Adaptive Speciation. Cambridge: Cambridge University Press, 173192.CrossRefGoogle Scholar
Wiley, Edward O. (1981), Phylogenetics: The Theory and Practice of Phylogenetic Systematics. New York: Wiley.Google Scholar
Wilson, Robert A. (2005), Genes and the Agents of Life: The Individual in the Fragile Sciences: Biology. Cambridge: Cambridge University Press.Google Scholar