Data from: Bateman gradients in hermaphrodites: an extended approach to quantify sexual selection

  • Nils Anthes (Contributor)
  • Patrice David (Contributor)
  • Josh R Auld (Contributor)
  • Jeroen N Hoffer (Contributor)
  • Philippe Jarne (Contributor)
  • JM Koene (Contributor)
  • Hanna Kokko (Contributor)
  • M Cristina Lorenzi (Contributor)
  • Benjamin Pélissié (Contributor)
  • Dennis Sprenger (Contributor)
  • Alexandra Staikou (Contributor)
  • Lukas Schärer (Contributor)



Sexual selection is often quantified using Bateman gradients, which represent sex-specific regression slopes of reproductive success on mating success and thus describe the expected fitness returns from mating more often. Although the analytical framework for Bateman gradients aimed at covering all sexual systems, empirical studies are biased towards separate-sex organisms, probably because important characteristics of other systems remain incompletely treated. Our synthesis complements the existing Bateman gradient approach with three essential reproductive features of simultaneous hermaphrodites. First, mating in one sex may affect fitness via the opposite sex, e.g. through energetic trade-offs. We integrate cross-sex selection effects and show how they help characterizing sexually mutualistic versus antagonistic selection. Second, male and female mating successes may be correlated, complicating the interpretation of Bateman gradients. We show how to quantify the impact of this correlation on sexual selection, and propose a Principal Component Analysis on male and female mating success to facilitate interpretation. Third, self-fertilization is accounted for by adding selfed progeny as a separate category of reproductive success to analyzes of Bateman gradients. Finally, using a worked example from the snail Biomphalaria glabrata, we illustrate how the extended analytical framework can further our understanding of sexual selection.,Biomphalaria glabrata sample data for Bateman gradient analysisDetails of sampling procedures and calculations performed with this sample dataset are available in Online Appendix B of the corresponding publicationSampleDataset.XLS,
Date made available1 Jan 2010
PublisherUnknown Publisher

Cite this