I introduce the term "Darwin-Bateman Paradigm" to include several proposals stemming from the writings of Charles Darwin and A. J. Bateman, including the notions that (a) male reproductive success is more variable than that of females, (b) males gain more in reproductive success from repeated matings than do females, and (c) males are generally eager to mate and relatively indiscriminate whereas females are more discriminating and less eager. I trace this paradigm from Darwin's The Descent of Man through Bateman's research and beyond. I try to clarify the terminology used in applying Bateman's results and discuss both the impact and the criticisms the paradigm has engendered. I then broaden the context of the Darwin-Bateman Paradigm to show related conceptions in disparate fields that evolved in parallel with it. I conclude that gender stereotypes appear to have influenced these conceptions. The paradigm has been of great heuristic value but is in need of further empirical investigation in view of numerous exceptions to these general rules.
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http://dx.doi.org/10.1093/icb/45.5.831 | DOI Listing |
Evol Lett
December 2024
CEFE, University of Montpellier, CNRS, EPHE, IRD, Montpellier, France.
The Darwin-Bateman paradigm advanced as the central concept to explain the evolutionary origin of sex differences. However, debates regarding its theoretical underpinnings persist, particularly with respect to the role of anisogamy in sexual selection. The theoretical work presented by Lehtonen and Parker suggests that the initial split in gamete production rate drives sex differences in sexual selection but that any further variation in the degree of anisogamy is not expected to alter the strength of sexual selection in males and females.
View Article and Find Full Text PDFBiol Rev Camb Philos Soc
August 2024
Programa de Pós-graduação em Ecologia, Instituto de Biociências, Universidade de São Paulo, Rua do Matão, trav. 14, no. 321, São Paulo, SP 05508-090, Brazil.
The Darwin-Bateman paradigm predicts that females enhance their fitness by being choosy and mating with high-quality males, while males should compete to mate with as many females as possible. In many species, males enhance their fitness by defending females and/or resources used by females. That is, males directly defend access to mating opportunities.
View Article and Find Full Text PDFSci Rep
September 2021
Department of Biology and Biochemistry, Milner Centre for Evolution, University of Bath, Bath, UK.
Males and females often display different behaviours and, in the context of reproduction, these behaviours are labelled sex roles. The Darwin-Bateman paradigm argues that the root of these differences is anisogamy (i.e.
View Article and Find Full Text PDFJ Evol Biol
July 2020
División Entomología, Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata, CONICET, Buenos Aires, Argentina.
Genital coevolution is a pervasive phenomenon as changes in one sex tend to impose fitness consequences on the other, generating sexual conflict. Sexual conflict is often thought to cause stronger selection on males due to the Darwin-Bateman's anisogamy paradigm. However, recent studies have demonstrated that female genitalia may be equally elaborated and perform diverse extra-copulatory functions.
View Article and Find Full Text PDFElife
June 2017
Section of Animal Ecology, Department of Ecological Science, Faculty of Earth and Life Sciences, Vrije Universiteit, Amsterdam, The Netherlands.
Sexual selection is generally predicted to act more strongly on males than on females. The Darwin-Bateman paradigm predicts that this should also hold for hermaphrodites. However, measuring this strength of selection is less straightforward when both sexual functions are performed throughout the organism's lifetime.
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