Abstract
Weismann’s ideas on species transmutation were first expressed in his famous debate with Moritz Wagner on the mechanism of speciation. Wagner suggested that the isolation of a colony from its original source is a preliminary and necessary factor for speciation. Weismann accepted a secondary, facilitating role for isolation, but argued that natural and sexual selection are the primary driving forces of species transmutation, and are always necessary and often sufficient causes for its occurrence. The debate with Wagner, which occurred between 1868 and 1872 within the framework of Darwin’s discussions of geographical distribution, was Weismann’s first public battle over the mechanism of evolution. This paper, which offers the first comprehensive analysis of this debate, extends previous analyses and throws light on the underlying beliefs and motivations of these early evolutionists, focusing mainly on Weismann’s views and showing his commitment to what he later called “the all sufficiency of Natural Selection.” It led to the crystallization of his ideas on the central and essential role of selection, both natural and sexual, in all processes of evolution, and, already at this early stage in his theoretical thinking, was coupled with sophisticated and nuanced approach to biological organization. The paper also discusses Ernst Mayr’s analysis of the debate and highlights aspects of Weismann’s views that were overlooked by Mayr and were peripheral to the discussions of other historians of biology.
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References
Churchill, F.B. 1999. “August Weismann: A Developmental Evolutionist.” Frederick B. Churchill and Helmut Risler (eds.), August Weismann: Ausgewählte Briefe und Dokumente/Selected Letters and Documents (2 vols.), Vol. II, pp. 749–798. Freiburg im Breisgau: Universitätsbibliothek Freiburg im Breisgau/Bärbel Shubel.
Churchill, F.B. and Risler, H. (eds.). 1999. August Weismann: Ausgewählte Briefe und Dokumente/Selected Letters and Documents, 2 Vols. Freiburg im Breisgau: Universitätsbibliothek Freiburg im Breisgau/Bärbel Shubel.
Darwin, C. 1859. On the Origin of Species by Means of Natural Selection or the Preservation of Favoured Races in the Struggle for Life. London:John Murray.
Darwin, C. 1868. The Variation of Animals and Plants under Domestication, 2nd ed, vol. I. London:John Murray.
Darwin, C. 1871. The Descent of Man and Selection in Relation to Sex. London:John Murray.
Darwin, C. 1872. On the Origin of Species by Means of Natural Selection, or the Preservation of Favoured Races in the Struggle for Life, 6th ed. London:John Murray.
Darwin, F. and Seward, A.C. (eds.). 1903. More Letters of Charles Darwin. A Record of His Work in a Series of Hitherto Unpublished Letters, 2 Vols. New York: Appleton & Co.
Gaupp, E. 1917. August Weismann sein Leben und sein Werk. Jena:Fischer.
Higashi, M, Takimoto, G, Yamannura, N. 1999. ‘Sympatric Speciation by Sexual Selection.’ Nature 402: 523–526.
Kohn, D. 2009. ‘Darwin’s Keystone: The Principle of Divergence.’ Michael Ruse, Robert J Richards (eds.), The Cambridge Companion to the Origin of Species. Cambridge:Cambridge University Press, pp. 87–108.
Mayr, E. 1942. Systematics and the Origin of Species. New York:Columbia University Press.
Mayr, E. 1957. “Species Concepts and Definitions.” Ernst Mayr (ed.), The Species Problem, pp. 1–22. Publication No. 50. Washington, DC: American Association for the Advancement of Science.
Mayr, E. 1959. ‘Isolation as an Evolutionary Factor.’ Proceedings of the American Philosophical Society 103: 221–230.
Mayr, E. 1963. Animal Species and Evolution. Cambridge, MA:Harvard University Press.
Mayr, E. 1978. ‘Origin and History of Some Terms in Systematic and Evolutionary Biology.’ Systematic Zoology 2: 83–88.
Mayr, E. 1985. ‘Weismann and Evolution.’ Journal of History of Biology 18: 295–329.
Mayr, E. 1991. One Long Argument. Charles Darwin and the Genesis of Modern Evolutionary Thought. Cambridge, MA:Harvard University Press.
Novák, J. 2008. Alfred Russel Wallace’s and August Weismann’s Evolution: A Story Written on Butterfly Wings. Ph.D. Dissertation: Princeton University.
Nyhart, LK. 1995. Biology Takes Form: Animal Morphology and the German Universities, 1800–1900. Chicago:University of Chicago Press.
Odling-Smee, F, Laland, J, Kevin, N, Feldman, MW. 2003. Niche Construction: The Neglected Process in Evolution. Princeton, NJ:Princeton University Press.
Poulton, E.B. 1908. “What is a species?” Edward B. Poulton (ed.), Essays on Evolution, 1889–1907, pp. 46–94. Clarendon Press, Oxford. (Originally published in Proceedings of the Royal Entomological Society of London 1903: 76–116)
Smocovitis, VB. 1996. Unifying Biology. The Evolutionary Synthesis and Evolutionary Biology. Princeton:Princeton University Press.
Sulloway, FJ. 1979. ‘Geographic Isolation in Darwin’s Thinking: The Vicissitudes of a Crucial Idea.’ Studies in History of Biology 3: 23–65.
Uschmann, G. and Hassenstein, B. 1965. “Der Briefwechsel zwischen Ernst Haeckel und August Weismann.” M. Gersch (ed.), Kleine Festgabe aus Anlass der hundertjährigen Wiederkehr der Gründung des Zoologischen Institutes der Friedrich-Schiller-Universität Jena im Jahre 1865 durch Ernst Haeckel. Jena: Friedrich-Schiller-Universität.
Wagner, M. 1868. The Darwinian Theory and the Migration Law of the Organisms. Transl. from German in 1873 by I. L. Laird. London: Standford.
Wagner, M. 1870. Über den Einfluss der Geographischen Isolierung und Colonienbildung auf die morphologischen Veränderungen der Organismen. Ein Beitrag zur Streitfragen des Darwinismus. Vortrag in der Sitzung der königlichen Bayer Akademie der Wissenschaft zu MÜnich vom Juli 1870.
Wagner, M. 1875. Der Naturprozess der Artbildung. Das Ausland 48: 425–428, 449–452, 473–475, 490–493, 513–516, 570–575, 589–593. Reprinted in Wagner 1889, Die Enstehung der Arten durch räumliche Sonderung: Gesammelte Aufsätze. ed. M. Wagner. Basel: Benno Schwabe.
Wagner, M. 1889. “Vorwort.” M. Wagner (ed.), Die Entstehung der Arten durch räumliche Sonderung: Gesammelte Aufsätze, p. 3. Basel: Benno Schwalbe.
Weismann, A. 1868. Über die Berechtigung der Darwin’schen Theorie. (Ein akademischer Vortrag gehalten am 8. Juli 1868 in der Aula der Universität zu Freiburg im Breisgau). Leipzig:Wilhelm Engelmann.
Weismann, A. 1872. Über den Einflus der Isolierung auf die Artbildung. Leipzig:Wilhelm Engelmann.
Weismann, A. 1904. The Evolution Theory. Transl. J. Arthur Thomson and Margaret Thomson, 2 Vols. London: Edward Arnold.
Weissman, C. in preparation. “August Weismann’s Inaugural Speech: The Legitimation of the Darwinian Theory.”
West-Eberhard, MJ. 2003. Developmental Plasticity and Evolution. New York:Oxford University Press.
Acknowledgements
I am very grateful to Eva Jablonka, Marion Lamb and Snait Gissis for their constructive comments on previous versions of this paper.
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Weissman, C. The Origins of Species: The Debate between August Weismann and Moritz Wagner. J Hist Biol 43, 727–766 (2010). https://doi.org/10.1007/s10739-009-9207-y
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DOI: https://doi.org/10.1007/s10739-009-9207-y