I am PhD student, supervised by Tim Janicke and Klaus Reinhardt.
My project examines how sexual selection is aligned with natural selection. We aim to investigate the influence of sexual selection on the capacities for adaption of species to novel environments and its influence on population fitness. Theory predicts that by reducing the frequency of deleterious mutations / mutation load, sexual selection might increase overall population fitness, while for example sexual conflict might reduce it. In this project we will (amongst other techniques) apply meta-analyses and experimental evolution (using the model system Tribolium castaneum) to test these hypotheses.
Some current interests are: Sexual selection, sperm competition, selfish genetic elements, genic capture, plasticity
Carlitz, E. H. D. et al. Steroid hormones in hair reveal sexual maturity and competition in wild house mice (Mus musculus domesticus). Sci. Rep. 9, 1–10 (2019).
Winkler, L., Kirch, L. M., Reinhold, K. & Ramm, S. A. Impact of low sperm competition on male reproductive trait allometries in a bush-cricket. BMC Evol. Biol. 19, 185 (2019).
Winkler, L. & Ramm, S. A. Experimental evidence for reduced male allocation under selfing in a simultaneously hermaphroditic animal. Biol. Lett. 14, (2018).