Institut für Evolution und Ökologie der Tiere	Tel. (0251) 83-21027 Fax: (0251) 83-24668 e-mail: evolecol@uni-muenster.de www: www.uni-muenster.de/Biologie.EvoEco/
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Forschungsschwerpunkte 2003 - 2004    zurück    weiter

Evolutionsbiologie Causes and resolution of sexual conflict in hermaphrodites   Comparison of mating behaviour and reciprocal insemination in planarians (Schmidtea polychroa), polyclad flatworms, opisthobranch sea slugs and earthworms (Lumbricus terrestris). Additional keywords: sperm competition, behaviour, histology, genitalia, theory. Drittmittelgeber: Deutsche Forschungsgemeinschaft und Alexander von Humboldt-stiftung Beteiligte Wissenschaftler: Prof. Nico K. Michiels (Leiter), Dr. Joris M. Koene, Dr. Gudrun Sundermann, Dr. Joris Koene, Nils Anthes, Annika Putz Veröffentlichungen: Koene JM, Pförtner T, Michiels NK (provisionally accepted) Piercing the partner's skin influences sperm storage in earthworms. Behav. Ecol. Sociobiol. Michiels NK, Koene JM (submitted) Sexual selection favours harmful mating in hermaphrodites more than in gonochorists. Integrative and Comparative Biology. Anthes N, Putz A, Michiels NK (in prep.) Identical mating interests cause unusual sexual conflicts: sex role preferences and sperm trading in internally fertilizing hermaphrodites. for Animal Behaviour Anthes N, Putz A, Michiels NK (in prep.) Gender trading in a hermaphrodite. for Nature Schärer L, Sandner P and Michiels NK (2004) Is there a trade-off between male and female allocation in the simultaneously hermaphroditic flatworm Macrostomum sp.? Journal of Evolutionary Biology 18(2):396-404. Anthes, N. & Michiels NK (2004) Do “sperm trading“ simultaneous hermaphrodites always trade sperm? Behavioral Ecology 16(1):188-195. Pongratz N and Michiels NK (2003) Does sperm trading imply paternity trading? Fertilisation patterns in mating groups of a hermaphroditic planarian flatworm. Molecular Ecology 12: 1425-1433. Michiels NK and Kuehl A (2003) Altruistic sperm donation in a sperm-dependent parthenogenetic hermaphrodite is stabilised by sperm trading. Journal of Zoology, London: 259, 77-82. Michiels NK, Raven-Yoo-Heufes A and Kleine Brockmann K (2003). Sperm trading and sex roles in the hermaphroditic sea slug Navanax inermis: eager females or cautious males? Biological Journal of the Linnean Society 78, 105-116. Koene JM, Sundermann G and Michiels NK (2002). The function of body piercing during copulation in earthworms. Invertebrate Reproduction and Development 41(1-3): 35-40. Pongratz N, Gerace L and Michiels NK (2002) Genetic differentiation within and between populations of a hermaphroditic freshwater planarian. Heredity 89: 64-69.