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Marie-Orleach, Lucas and Vogt-Burri, Nadja and Mouginot, Pierick and Schlatter, Aline and Vizoso, Dita B. and Bailey, Nathan W. and Schärer, Lukas. (2017) Indirect genetic effects and sexual conflicts: partner genotype influences multiple morphological and behavioural reproductive traits in a flatworm. Evolution, 71 (5). pp. 1232-1245.

Giannakara, Athina and Schärer, Lukas and Ramm, Steven A.. (2016) Sperm competition-induced plasticity in the speed of spermatogenesis. BMC Evolutionary Biology , 16. p. 60.

Janicke, Tim and Sandner, Peter and Ramm, Steven A. and Vizoso, Dita B. and Schärer, Lukas. (2016) Experimentally evolved and phenotypically plastic responses to enforced monogamy in a hermaphroditic flatworm. Journal of Evolutionary Biology, 29 (9). pp. 1713-1727.

Lehtonen, Jussi and Parker, Geoff A. and Schärer, Lukas. (2016) Why anisogamy drives ancestral sex roles. Evolution, 70 (5). pp. 1129-1135.

Marie-Orleach, Lucas and Janicke, Tim and Vizoso, Dita B. and David, Patrice and Schärer, Lukas. (2016) Quantifying episodes of sexual selection: insights from a transparent worm with fluorescent sperm. Evolution, 70 (2). pp. 314-328.

Schärer, Lukas. (2016) The varied ways of being male and female. Molecular Reproduction and Development, 84 (2). pp. 94-104.

Zadesenets, Kira S. and Vizoso, Dita B. and Schlatter, Aline and Konopatskaia, Irina D. and Berezikov, Eugene and Schärer, Lukas and Rubtsov, Nikolay B.. (2016) Evidence for karyotype polymorphism in the free-living flatworm Macrostomum lignano, a model organism for evolutionary and developmental biology. PLoS One, 11 (10). e0164915.

Janssen, Toon and Vizoso, Dita B. and Schulte, Gregor and Littlewood, D. Timothy J. and Waeschenbach, Andrea and Schärer, Lukas. (2015) The first multi-gene phylogeny of the Macrostomorpha sheds light on the evolution of sexual and asexual reproduction in basal Platyhelminthes. Molecular phylogenetics and evolution, 92. pp. 82-107.

Wasik, Kaja A. and Gurtowski, James and Zhou, Xin and Mendivil Ramos, Olivia and Delás, M. Joaquina and Battistoni, Giorgia and El Demerdash, Osama and Falciatori, Ilaria and Vizoso, Dita B. and Smith, Andrew D. and Ladurner, Peter and Schärer, Lukas and McCombie, W. Richard and Hannon, Gregory J. and Schatz, Michael C.. (2015) Genome and transcriptome of the regeneration-competent flatworm,; Macrostomum lignano. Proceedings of the National Academy of Sciences of the United States of America, 112 (40). pp. 12462-12467.

Ramm, Steven A. and Schlatter, Aline and Poirier, Maude and Schärer, Lukas. (2015) Hypodermic self-insemination as a reproductive assurance strategy. Proceedings of the Royal Society. Series B, Biological sciences, 282 (1811). p. 20150660.

Arbore, Roberto and Sekii, Kiyono and Beisel, Christian and Ladurner, Peter and Berezikov, Eugene and Schärer, Lukas. (2015) Positional RNA-Seq identifies candidate genes for phenotypic engineering of sexual traits in; Macrostomum lignano. Frontiers in zoology, 12. p. 14.

Schärer, Lukas and Janicke, Tim and Ramm, Steven A.. (2015) Sexual conflict in hermaphrodites. Cold Spring Harbor Perspectives in Biology, 7 (1). a017673.

Ramm, Steven A. and Schärer, Lukas. (2014) The evolutionary ecology of testicular function: size isn’t everything. Biological Reviews, 89 (4). pp. 874-888.

Ellis, Ronald E. and Schärer, Lukas. (2014) Rogue sperm indicate sexually antagonistic coevolution in nematodes. PLoS Biology, 12 (7). e1001916.

Marie-Orleach, Lucas and Janicke, Tim and Vizoso, Dita B. and Eichmann, Micha and Schärer, Lukas. (2014) Fluorescent sperm in a transparent worm: validation of a GFP marker to study sexual selection. BMC evolutionary biology, 14. p. 148.

Schärer, Lukas. (2014) Evolution: don’t be so butch, dear! Current biology, 24 (8). R311-R313.

Lengerer, Birgit and Pjeta, Robert and Wunderer, Julia and Rodrigues, Marcelo and Arbore, Roberto and Schärer, Lukas and Berezikov, Eugene and Hess, Michael and Pfaller, Kristian and Egger, Bernhard and Obwegeser, Sabrina and Salvenmoser, Willi and Ladurner, Peter. (2014) Biological adhesion of the flatworm Macrostomum lignano relies on a duo-gland system and is mediated by a cell type-specific intermediate filament protein. Frontiers in zoology, 11. p. 12.

Ramm, Steven A. and Schärer, Lukas and Ehmcke, Jens and Wistuba, Joachim. (2014) Sperm competition and the evolution of spermatogenesis. Molecular Human Reproduction, 20 (12). pp. 1169-1179.

Marie-Orleach, Lucas and Janicke, Tim and Schärer, Lukas. (2013) Copulatory and post-copulatory mating behaviours depend on the mating status of both partners in a simultaneous hermaphrodite. Animal behaviour, Vol. 85, H. 2. pp. 453-461.

Schärer, Lukas and Pen, Ido. (2013) Sex allocation and investment into pre- and postcopulatory traits in simultaneous hermaphrodites: the role of polyandry and local sperm competition. Philosophical transactions. Biological sciences, Vol. 368, no. 1613 , 20120052.

Sekii, K. and Vizoso, D. B. and Kuales, G. and De Mulder, K. and Ladurner, P. and Schärer, Lukas. (2013) Phenotypic engineering of sperm-production rate confirms evolutionary predictions of sperm competition theory. Proceedings of the Royal Society. Series B, Biological sciences, Vol. 280, H. 1757 , 20122711.

Janicke, T. Marie-Orleach and L. De Mulder, K. Berezikov and E. Ladurner, P. Vizoso and Schärer, L.. (2013) Sex allocation adjustment to mating group size in a simultaneous hermaphrodite. Evolution, Vol. 67 , no. 11, S. 3233–3242.

Marie-Orleach, Lucas and Janicke, Tim and Schärer, Lukas. (2013) Effects of mating status on copulatory and postcopulatory behaviour in a simultaneous hermaphrodite. Animal Behaviour, 85 (2). pp. 453-461.

Schärer, Lukas and Rowe, L. and Arnqvist, G.. (2012) Anisogamy, chance and the evolution of sex roles. Trends in Ecology & Evolution, 27 (5). pp. 260-264.

Janicke, T. and Kesselring, H. and Schärer, L.. (2012) Strategic mating effort in a simultaneous hermaphrodite : the role of the partner's feeding status. Behavioral ecology and sociobiology, 66 (4). pp. 593-601.

Ramm, S. A. and Vizoso, D. B. and Schärer, L.. (2012) Occurrence, costs and heritability of delayed selfing in a free-living flatworm. Journal of Evolutionary Biology, 25 (12). pp. 2559-2568.

Janicke, T. and Sandner, P. and Schärer, L.. (2011) Determinants of female fecundity in a simultaneous hermaphrodite: the role of polyandry and food availability. Evolutionary ecology, 25 (1). pp. 203-218.

Schärer, L. and Littlewood, D. T. J. and Waeschenbach, A. and Yoshida, W. and Vizoso, D. B.. (2011) Mating behavior and the evolution of sperm design. Proceedings of the National Academy of Sciences of the United States of America, 108 (4). pp. 1490-1495.

Vizoso, D. B. and Rieger, G. and Schärer, L.. (2010) Goings-on inside a worm : functional hypotheses derived from sexual conflict thinking. Biological journal of the Linnean Society, 99 (2). pp. 370-383.

Nils Anthes, and Patrice David, and Josh R. Auld, and Jeroen N. A. Hoffer, and Philippe Jarne, and Joris M. Koene, and Hanna Kokko, and Cristina Lorenzi, M. and Benjamin Pelissié, and Dennis Sprenger, and Alexandra Staikou, and Lukas Schärer, . (2010) Bateman gradients in hermaphrodites : an extendes approach to quantify sexual selection. The American naturalist, Vol. 176, H. 3. pp. 249-263.

Janicke, T. and Schärer, L.. (2010) Sperm competition affects sex allocation but not sperm morphology in a flatworm. Behavioral ecology and sociobiology, 64 (9). pp. 1367-1375.

Sandner, Peter and Schärer, L.. (2010) No plastic responses to experimental manipulation of sperm competition in a free-living flatworm. Ethology, 116 (4). pp. 292-299.

Schärer, L. and Janicke, T.. (2009) Sex allocation and sexual conflict in simultaneously hermaphroditic animals. Biology letters, 5 (5). pp. 705-708.

Mouton, Stijn and Willems, Maxime and Braeckman, Bart P. and Egger, Bernhard and Ladurner, Peter and Schärer, Lukas and Borgonie, Gaetan. (2009) The free-living flatworm Macrostomum lignano : a new model organism for ageing research. Experimental gerontology, 44 (4). pp. 243-249.

Schärer, L.. (2009) Tests of sex allocation theory in simultaneously hermaphroditic animals. Evolution, 63 (6). pp. 1377-1405.

Janicke, T. and Schärer, L.. (2009) Determinants of mating and sperm-transfer success in a simultaneous hermaphrodite. Journal of Evolutionary Biology, 22 (2). pp. 405-415.

Sekii, K. and Salvenmoser, W. and De Mulder, K. and Schärer, L. and Ladurner, P.. (2009) Melav2, an elav-like gene, is essential for spermatid differentiation in the flatworm Macrostomum lignano. BMC developmental biology, Vol. 9 , 62.

Van Velzen, Ellen and Schärer, Lukas and Pen, Ido. (2009) The effect of cryptic female choice on sex allocation in simultaneous hermaphrodites. Proceedings of the Royal Society. Series B, Biological sciences, 276 (1670). pp. 3123-3131.

Janicke, T. and Schärer, L.. (2009) Sex allocation predicts mating rate in a simultaneous hermaphrodite. Proceedings of the Royal Society. Series B, Biological sciences, 276 (1676). pp. 4247-4253.

Schärer, L. and Da Lage, Jean-Luc and Joly, D.. (2008) Evolution of testicular architecture in the Drosophilidae : a role for sperm length. BMC evolutionary biology, Vol. 8 , 143.

Brauer, Verena S. and Schärer, Lukas and Michiels, N. K.. (2007) Phenotypically flexible sex allocation in a simultaneous hermaphrodite. Evolution, 61 (1). pp. 216-222.

Schärer, Lukas and Vizoso, Dita Brígida. (2007) Phenotypic plasticity in sperm production rate : there's more to it than testis size. Evolutionary ecology, 21 (3). pp. 295-306.

Schärer, Lukas and Knoflach, Dagmar and Vizoso, Dita B. and Rieger, Gunde and Peintner, Ursula. (2007) Thraustochytrids as novel parasitic protists of a marine free-living flatworm : Thraustochytrium caudivorum sp. nov. parasitizes Macrostomum lignano. Marine biology, 152 (5). pp. 1095-1104.

Vizoso, Dita Brígida and Schärer, Lukas. (2007) Resource-dependent sex allocation in a simultaneous hermaphrodite. Journal of Evolutionary Biology, 20 (3). pp. 1046-1055.

Schärer, Lukas and Zaubzer, Johanna and Salvenmoser, Willi and Seifarth, Christof and Ladurner, Peter. (2007) Tracking sperm of a donor in a recipient : an immunocytochemical approach. Animal Biology, 57 (2). pp. 121-136.

Ladurner, Peter and Pfister, Daniela and Seifarth, Christof and Schärer, Lukas and Mahlknecht, Monika and Salvenmoser, Willi and Gerth, Regine and Rieger, Reinhard. (2005) Production of cell- and tissue-specific monoclonal antibodies for the flatworm Macrostomum sp. Histochemistry and cell biology, 123 (1). pp. 89-104.

Schärer, Lukas and Sandner, Peter and Michiels, Nico K.. (2005) Trade-off between male and female allocation in the simultaneously hermaphroditic flatworm Macrostomum sp. Journal of Evolutionary Biology, 18 (2). pp. 396-404.

Ladurner, P. and Schärer, Lukas and Salvenmoser, W. and Rieger, Reinhard M.. (2005) A new model organism among the lower Bilateria and the use of digital microscopy in taxonomy of meiobenthic Platyhelminthes Macrostomum lignano, n. sp. (Rhabditophora, Macrostomorpha). Journal of zoological systematics and evolutionary research, 43 (2). pp. 114-126.

Schärer, Lukas and Joss, Greg and Sandner, Peter. (2004) Mating behaviour of the marine turbellarian Macrostomum sp. : these worms; suck. Marine biology, 145 (2). pp. 373-380.

Schärer, Lukas and Ladurner, Peter and Rieger, Reinhard M.. (2004) Bigger testes do work more : experimental evidence that testis size reflects testicular cell proliferation activity in the marine invertebrate, the free-living flatworm; Macrostomum; sp. Behavioral ecology and sociobiology, 56 (5). pp. 420-425.

Schärer, Lukas and Vizoso, Dita Brígida. (2003) Earlier sex change in infected individuals of the protogynous reef fish Thalassoma bifasciatum. Behavioral ecology and sociobiology, 55 (2). pp. 137-143.

Schärer, Lukas and Ladurner, Peter. (2003) Phenotypically plastic adjustment of sex allocation in a simultaneous hermaphrodite. Proceedings of the Royal Society. Series B, Biological sciences, 270 (1518). pp. 935-941.

Schärer, Lukas and Wedekind, Claus. (2001) Social situation, sperm competition, and sex allocation in a simultaneous hermaphrodite parasite, the cestode Schistocephalus solidus. Journal of Evolutionary Biology, 14 (6). pp. 942-953.

Schärer, Lukas and Karlsson, Lars M. and Christen, Mira and Wedekind, Claus. (2001) Size-dependent sex allocation in a simultaneous hermaphrodite parasite. Journal of Evolutionary Biology, 14 (1). pp. 55-67.

Wedekind, Claus and Christen, Mira and Schärer, Lukas and Treichel, Nathalie. (2000) Relative helmith size in crustacean hosts : in vivo determination, and effects of host gender and within-host competition in a copepod infected by a cestode. Aquatic ecology, 34 (3). pp. 279-285.

Binz, T. and Reusch, T. B. H. and Wedekind, C. and Schärer, L. and Sternberg, J. M. and Milinski, M.. (2000) Isolation and characterization of microsatellite loci from the tapeworm Schistocephalus solidus. Molecular ecology, 9 (11). pp. 1926-1927.

Schärer, Lukas and Wedekind, Claus. (1999) Lifetime reproductive output in a hermaphrodite cestode when reproducing alone or in pairs : a time cost of pairing. Evolutionary ecology, 13 (4). pp. 381-394.

Schärer, Lukas and Robertson, Ross D.. (1999) Sperm and milt characteristics and male versus female investment in the Caribbean reef fish, Thalassoma bifasciatum. Journal of fish biology, 55 (2). pp. 329-343.

Claus Wedekind, and Dora Strahm, and Lukas Schärer, . (1998) Evidence for strategic egg production in a hermaphroditic cestode. Parasitology, Vol. 117. pp. 373-382.

Book Section

Schärer, Lukas and Ramm, Steven A.. (2016) Hermaphrodites. In: Encyclopedia of Evolutionary Biology, 2. Oxford, pp. 212-224.

Ladurner, P. and Egger, B. and De Mulder, K. and Pfister, D. and Kuales, G. and Salvenmoser, W. and Schärer, L.. (2008) The stem cell system of the basal flatworm Macrostomum lignano. In: Stem cells : from hydra to man. [Dordrecht], pp. 75-94.