Faculty of Biology - Evolutionary Biology
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Bielefeld University > Faculty of Biology > Evolutionary Biology > mitarbeiter

Dr. Yumi Nakadera

Office: VHF-212
Phone: +49 (0)521-106 2820
email: yumi.nakadera"at"uni-bielefeld.de

Research Interests

I am fascinated by the consequence of sexual selection, i.e., how organisms reproduce. Currently, I focus on reproductive strategies of simultaneous hermaphrodites because of their uniqueness, compared with that of separate-sexed species. For example, simultaneous hermaphrodites choose to act as male or female upon copulation, or they potentially can manipulate the male function of female-acting partners. I am carrying out trait-based experiments, using genetic / behavioural / physiological approaches in the great pond snail, Lymnaea stagnalis.


Sexual selection, Reproduction, Evolution, Behaviour, Genetics, Physiology, Morphology


2003-2006 BSc, Shinshu University, Japan (Grade-skipped)
2006-2008 MSc, Shinshu University, Japan
2008-2010 Research student, Shinshu University, Japan
2010-2014 PhD, VU University Amsterdam, the Netherlands (Thesis “Reproductive strategies in a simultaneous hermaphrodite")
2014 Research assistant, Yokohama National University, Japan
2015 Post-doc, Bielefeld University, Germany
2016-2018 Humboldt Fellowship, Bielefeld University, Germany


Nakadera Y, Mariën J, van Straalen NM, Koene JM. 2017. Multiple mating in natural populations of a simultaneous hermaphrodite, Lymnaea stagnalis. J Molluscan Stud. 83:56-62.

Nakadera Y, Swart EM, Maas JPA, Montagne-Wajer K, Ter Maat A, Koene JM. 2015. Effects of age, size, and mating history on sex role decision of a simultaneous hermaphrodite. Behav. Ecol. 26:232-241.

Nakadera Y, Swart EM, Hoffer JNA, den Boon O, Ellers J, Koene JM. 2014. Receipt of seminal fluid proteins causes reduction of male investment in a simultaneous hermaphrodite. Curr. Biol. 24:859–862.

Nakadera Y, Blom C, Koene JM. 2014. Duration of sperm storage in the simultaneous hermaphrodite Lymnaea stagnalis. J. Mollusc. Stud. 80:1–7.

Van Iersel S, Swart EM, Nakadera Y, van Straalen NM, Koene JM. 2014. Effect of male accessory gland products on egg laying in gastropod molluscs. J. Vis. Exp. 88:e51698

Nakadera Y, Koene JM. 2013. Reproductive strategies in hermaphroditic gastropods: conceptual and empirical approaches. Can. J. Zool. 91:367–381.

Nakadera Y, Sutcharit C, Ubukata T, Seki K, Utsuno H, Panha S, Asami T. 2010. Enantiomorphs differ in shape in opposite directions between populations. J. Evol. Biol. 23:2377–84.