Mück, I. & Heubel, K. U. (2018)
Ecological variation along the salinity gradient in the Baltic Sea Area and its consequences for reproduction in the common goby. Current Zoology


Fritsch, R., Collin, S. P., & Michiels, N. K. (2017)
Anatomical Analysis of the Retinal Specializations to a Crypto-Benthic, Micro-Predatory Lifestyle in the Mediterranean Triplefin Blenny Tripterygion delaisi. Frontiers  in Neuroanatomy


Anthes, N., Boschert M. & Daniels-Trautner J. (2017)
Breeding range and population trend of the Corn Bunting Emberiza calandra in Baden-Württemberg [in German]. Ornithol. Jh. Bad.-Württ. 33:27-44.


de Jong, K., Amorim,M.C.P, Fonseca, P.J., Fox, C.J. & Heubel,  K.U. (2017)
Noise can affect acoustic communication and subsequent spawning success in fish. Environmental Pollution. doi: 10.1016/j.envpol.2017.11.003


Harant, U., Michiels N.K. (2017)
Fish with red fluorescent eyes forage more efficiently under dim, blue-green light conditions BMC Ecology DOI: 10.1186/s12898-017-0127-y


Bitton, P.-P., Harant, U.K., Fritsch, R., Champ, C.M., Temple, S.E., Michiels, N.K. (2017)
Red fluorescence of the triplefin Tripterygion delaisi is increasingly visible against background light with increasing depth Royal Society Open Acces DOI: 10.1098/rsos.161009

Fritsch, R., Ullmann, J.F.P., Bitton, P.P., Collin, S.P., Michiels, N.K. (2017)
Optic-nerve-transmitted eyeshine, a new type of light emission from fish eyes. Frontiers in Zoology 2017 DOI 10.1186/s12983-017-0198-9


Seidt, M., S. Geißler-Strobel, M. Kramer, R. Kratzer, F. Straub & N. Anthes (2017)
Population size and management of the Grey Partridge Perdix perdix in the administrative district of Tübingen [in German]. Ornithol. Jh. Bad.-Württ. 33:3-12.


Vallon, M. & K.U. Heubel (2017)
Egg density and salinity influence filial cannibalism in common gobies. Behav. Ecol. Sociobiol. 71: 159.



Anthes, N., Häderer, I.K., Michiels, N.K. & Janicke, T. (2016):

Measuring and interpreting sexual selection metrics – evaluation and guidelines. Methods in Ecology and Evolution, in press.


Anthes, N., Theobald, J., Gerlach, T., Meadows, M.G. & Michiels, N.K. (2016):

Diversity and Ecological Correlates of Red Fluorescence in Marine Fishes. Frontiers in Ecology and Evolution, 4: 126.


Blom, E.-L., Mück, I., Heubel, K. & Svensson, O. (2016):

Acoustic and visual courtship traits in two sympatric marine Gobiidae species – Pomatoschistus microps and Pomatoschistus minutus. Environmental Biology of Fishes, in press.


De Jong, K., Schulte G., Heubel K.U. (2016):

The noise egg: a cheap and simple device to produce low-frequency underwater noise for laboratory and field experiments. Methods in Ecology and Evolution 2016 doi: 10.1111/2041-210X.12653


Gerlach, T., Theobald, J., Hart, N. S., Collin, S. P. & Michiels, N. K. (2016):

Fluorescence characterisation and visual ecology of pseudocheilinid wrasses. Frontiers in Zoology 13, 1-8.


Harant U.K., Michiels N.K., Anthes N., Meadows M.G. (2016):

The consistent difference in red fluorescence in fishes across a 15 m depth gradient is triggered by ambient brightness, not by ambient spectrum. BMC Research Notes 9:1-10.


Häderer I.K., Michiels N.K. (2016):

Successful Operant Conditioning of Marine Fish in Their Natural Environment. Copeia 104:380-386.


Janicke T., Häderer I.K., Lajeunesse M.J., Anthes N. (2016):

Darwinian sex roles confirmed across the animal kingdom. Science Advances 2: e1500983.


Kalb, N., Lindström, K., Sprenger, D., Anthes, N. & Heubel, K. U. (2016):

Male personality and female spawning consistency in a goby with exclusive male care. Behav. Ecol. Sociobiol. 70: 683-693.


Vallon, M., Anthes, N., and Heubel, K.U. (2016):

Water mold infection but not paternity induces selective filial cannibalism in a goby. Ecology and Evolution 6: 7221–7229 .


Vallon M, Grom C, Kalb N, Sprenger D, Anthes N, Lindström K, Heubel KU (2016):

You eat what you are: personality-dependent filial cannibalism in a fish with paternal care. Ecology and Evolution 6: 1340–1352.


Vallon M, Heubel KU (2016):

Old but gold: males preferentially cannibalize young eggs. Behav Ecol Sociobiol. 70: 569-573.



Böhler, E., M. Seidt, N. Anthes, F. Straub & G. Hermann (2015):

Habitatpräferenzen der Gelbbauchunke (Bombina variegata) im Waldgebiet Rammert und Konsequenzen für den Schutz der Art. Z. Feldherpetol. 22: 1-20.


Gühmann M, Jia H, Randel N, Verasztó C, Bezares-Calderón Luis A, Michiels Nico K, Yokoyama S, Jékely G (2015):

Spectral Tuning of Phototaxis by a Go-Opsin in the Rhabdomeric Eyes of Platynereis. Curr Biol 25:2265-2271.


Kalb, N., Schneider, R., Sprenger, D. & Michiels, N. (2015):

The red-fluorescing marine fish Tripterygion delaisi can perceive its own red fluorescent color. Ethology 121: 566-576.


Prinzinger, R., H.-G. Bauer, W. Schmid, N. Anthes & U. Mahler (2015):

Nachruf & Bibliografie Dr. Jochen Hölzinger. Ornithologische Jahreshefte für Baden-Württemberg 31: 1-30.



Anthes, N., J. Werminghausen & R. Lange (2014):

Large donors transfer more sperm, but depletion is faster in a promiscuous hermaphrodite. Behav. Ecol. Sociobiol 68:477-483.


Braun, C., N.K. Michiels, U.E. Siebeck & D. Sprenger (2014):

Signalling function of long wavelength colours during agonistic male-male interactions in the wrasse Coris julis. Marine Ecology Progress Series 504: 277-286.


Fritzsche, K., Timmermeyer, N., Wolter, M. & Michiels, N. K. (2014):

Female, but not male, nematodes evolve under experimental sexual coevolution. Proc. R. Soc. Lond. B 281: 20140942


Gerlach, T., D. Sprenger & N.K. Michiels (2014):

Fairy wrasses perceive and respond to their deep red fluorescent coloration. Proc. R. Soc. Lond. B 281: 20140787.


Lange, R., J. Werminghausen & N. Anthes (2014):

Cephalo-traumatic secretion transfer in a hermaphrodite sea slug. Proceedings of the Royal Society of Lond. B. 281: . doi10.1098/rspb.2013.2424.


Meadows, M. G., Anthes, N., Dangelmayer, S., Alwany, M. A., Gerlach, T., Schulte, G., Sprenger, D., Theobald, J. & Michiels, N. K. (2014):

Red fluorescence increases with depth in reef fishes, supporting a visual function, not UV protection. Proc. R. Soc. Lond. B 281: 20141211.


Reinhardt, K., N. Anthes & R. Lange (2014):

Copulatory Wounding and Traumatic Insemination. In: W.R.Rice & S.Gavrilets (eds.) The Genetics and Biology of Sexual Conflict. A subject collection from Cold Spring Harbor Perspectives in Biology. CSH Press, New York


Wucherer, M.F. & N.K. Michiels (2014):

Regulation of red fluorescent light emission in a cryptic marine fish. Frontiers in Zoology 11: 1.




Lange, R. , J. Werminghausen, N. Anthes (2013):

Does traumatic secretion transfer manipulate mating roles or reproductive output in a hermaphroditic sea slug? Behav. Ecol. Sociobiol. 67: 1239-1247.


Lange, R., K. Reinhardt, N.K. Michiels & N. Anthes (2013).

Functions, diversity, and evolution of traumatic mating. Biological Reviews 88: 585-601.


Lehtonen J, Schmidt DJ, Heubel K, Kokko, H. (2013).

Evolutionary and ecological implications of sexual parasitism. Trends in Ecology and Evolution 28:297-306.


Otti, O., McTighe, A. & Reinhardt, K. (2013).

In vitro antimicrobial sperm protection by an ejaculate-like substance. Funct. Ecol 27: 219-226


Reinhardt, K. (2013).

Clinical evidence of symptoms of bed bug bites. Br. Med. J. rr/631795


Reinhardt, K., Ribou, A.-C. (2013).

Females become infertile as the stored sperm's oxygen radicals increase. Scientific Reports 3: 2888


Reinhardt, K., Dowling, D.K., Morrow, E.H. (2013).

Mitochondrial Replacement, Evolution, and the Clinic. Science 341: 1345-1346


Sánchez Navarro, B., Jokela, J., Michiels, N. K., D'Souza, T.G. (2013).

Population genetic structure of parthenogenetic flatworm populations with occasional sex Freshwater Biology. DOI: 10.1111/fwb.12070


Seidel C., Reinhardt, K. (2013).

Bugging forecast: Unknown, disliked, occasionally intimate. Bed bugs in Germany meet unprepared people. PLoS ONE 8:e51083


Vowinkel, K. & N. Anthes (2012).

Revierdichten und Bestand des Gartenrotschwanzes in Baden-Württemberg 2011. Ornithol. Jh. Bad.-Württ. 28: 73-92.


Werminghausen J., R. Lange & N. Anthes (2013).

Seeking a Sex-Specific Coolidge Effect in a Simultaneous Hermaphrodite. Ethology 119: 541-551.




Gassner, P., D. Sprenger & N. Anthes (2012):Red Sea butterflyfish responds to changing coral cover. Biodiv. Science 6 (Apr 2012).


Kokko, H. and Heubel, K.U. (in press 2012):
On depending on fish for a living, and other difficulties of living sustainably, in: K. Sterelny, R. Joyce, B. Calcott, and B. Fraser (Eds.), Cooperation and its Evolution, MIT press.


Lange, R., J. Beninde, V. Reichel, J. Werminghausen, T. Gerlach & N. Anthes (2012):
Copulation duration does not predict sperm transfer in a marine hermaphrodite. Animal Behaviour.  


Lange R et al. (2012):

Female Fitness Optimum at Intermediate Mating Rates under Traumatic Mating. PLoS One 7(8): e43234.


Reinhardt, K, Otti, O. (2012):

Comparing sperm swimming speed. Evol Ecol Res., in press


Ribou, A.-C., Reinhardt, K. (2012):

Reduced metabolic rate and oxygen radicals production in stored insect sperm. Proc R Soc Lond B 279: 2196-2203.


Schulte, R.D., B. Hasert, C. Makus, N.K. Michiels, H. Schulenburg (2012):
Increased responsiveness in feeding behaviour of Caenorhabditis elegans after experimental coevolution with its microparasite Bacillus thuringiensis. Biol. Lett. 8:234-236


Sprenger, D., Dingemanse, N.J., Dochtermann, N.A., Theobald, J. Walker, S.P.W. (2012): Aggressive females become aggressive males in a sex-changing reef fish. Ecology Letters 15(9):986-992.


Wucherer MF, Michiels NK (2012) A fluorescent chromatophore changes the level of fluorescence in a reef fish. PLoS ONE 7(6): e37913



Boehnisch, C, Wong, D, Habig, M, Isermann, K, Michiels, NK, Roeder, T, May, RC, Schulenburg, H (2011): 
Protist-Type Lysozymes of the Nematode Caenorhabditis elegans Contribute to Resistance against Pathogenic Bacillus thuringiensis. PLOS ONE 6(9): e24619.


Dobler, R. & Kölliker, M., (2011):
Influence of weight asymmetry and kinship on siblicidal and cannibalistic behaviour in earwigs, Animal Behaviour


Hammerschmidt K, Pemberton AJ, Michiels NK, Bishop, JDD (2011):
Differential maternal allocation following mixed insemination contributes to variation in oocyte size in a sea squirt. Marine Ecology Progress Series 422:123-128


Kokko H., Heubel K.U. (2011):
Prudent males, group adaptation, and the tragedy of the commons. Oikos 120:641-656


Reinhardt, K., Naylor, R. & Siva-Jothy, M. T. (2011) Male mating rate is constrained by seminal fluid availability in bed bugs, Cimex lectularius. PLoS ONE 6:7e22082.


Schulte RD, Carsten Makus, Barbara Hasert, Nico K. Michiels, and Hinrich Schulenburg (2011): Host-parasite local adaptation after experimental coevolution of Caenorhabditis elegans and its microparasite Bacillus thuringiensis. Proc R Soc B 278: 2832-2839.


Sprenger, D., R. Lange & N. Anthes (2011). Population density and group size effects on reproductive behavior in a simultaneous hermaphrodite. BMC Evol. Biol. 11: 107


Wong Janine WY, Nico K Michiels (2011):
Control of social monogamy through aggression in a hermaphroditic shrimp. Frontiers in Zoology 2011, 8:30.



Anthes, N., P. David, D. Sprenger et al. (2010):
Bateman Gradients in Hermaphrodites: An Extended Approach to Quantify Sexual Selection. The American Naturalist 176:249-263 [full text]


Anthes, N. (2010):
Mate choice and reproductive conflict in simultaneous hermaphrodites. In: P.M. Kappeler (ed) Animal Behaviour: Evolution and Mechanisms. Springer Verlag (in press).


D'Souza, T. G., and N. K. Michiels. (2010):
The Costs and Benefits of Occasional Sex: Theoretical Predictions and a Case Study. J Hered 101:S34-41.


Schleicherova D, Lorenzi MC, Sella G, Michiels NK (2010):
Gender expression and group size: a test in a hermaphroditic and a gonochoric congeneric species of Ophryotrocha (Polychaeta) J Exp Biol 213, 1586-1590 [full text], DOI:10.1242/jeb.041814 


Schulte RD, Makus C, Hasert B, Michiels NK, Schulenburg H (2010):
Multiple reciprocal adaptations and rapid genetic change upon experimental coevolution of an animal host and its microbial parasite. PNAS (online before print) [full text], DOI:10.1073/pnas.1003113107


Siebeck, U. E., A. N. Parker, D. Sprenger, L. M. Mäthger, and G. Wallis. 2010. A Species of Reef Fish that Uses Ultraviolet Patterns for Covert Face Recognition. Current Biology 20:407-410. [full text], DOI:10.1016/j.cub.2009.12.047


Sprenger, D., R. Lange, N.K. Michiels & N. Anthes (2010):
Sources of phenotypic variance in egg and larval traits in a marine invertebrate. Evolutionary Ecology 24: 185-194 [full text], DOI:10.1007/s10682-009-9300-x 


Timmermeyer N., Gerlach  T, Guempel C. et al. (2010):
The function of copulatory plugs in Caenorhabditis remanei: hints for female benefits. Frontiers in Zoology 7: 28


Velavan TP, Schulenburg H, Michiels NK (2010):
Detection of multiple infections by Monocystis strains in a single earthworm host using ribosomal internal transcribed spacer sequence variation. Parasitology 137: 45-51.



Baele G., N. Bredeche, E. Haasdijk, S. Maere, N.K. Michiels, Y. Van de Peer, T. Schmickl, C. Schwarzer, R. Thenius (2009): 
Open-ended On-board Evolutionary Robotics for Robot Swarms. Proc. 11th Congress Evolutionary Computation, Trondheim, Norway: 1123-1130. ISBN:978-1-4244-2958-5.


Bedhomme, S., G. Bernasconi, J.M. Koene, A. Lankinen, H.S. Arathi, N.K. Michiels, N. Anthes (2009):
How does breeding system variation modulate sexual antagonism? Biol. Lett. 5: 717-720 [full text]


D'Souza TG & N.K. Michiels (2009):
Sex in parthenogenetic planarians: Phylogenetic relic or evolutionary resurrection? In: I. Schön, K. Martens & P. van Dijk (eds.) Lost Sex. Springer Verlag (in press)


Häderer, I.K., J. Werminghausen, N.K. Michiels, N. Timmermeyer, N. Anthes (2009):
No effect of mate novelty on sexual motivation in the freshwater snail Biomphalaria glabrata. Frontiers in Zoology 6: 23. [free full text]


Michiels, N.K., P.H. Crowley & N.Anthes (2009):
Accessory male investment can undermine the evolutionary stability of simultaneous hermaphroditism. Biol. Lett. 5: 709-712. [free full text]


Sánchez Navarro, Michiels, Köhler and D’Souza (2009): Differential expression of heat shock protein 70 in relation to stress type in the flatworm Schmidtea polychroa. Hydrobiologia 636: 393-400. [full text]


Sprenger, D., R. Lange, N.K. Michiels & N. Anthes (2009):
The role of body size in early mating behavior in a simultaneous hermaphrodite, Chelidonura sandrana. Behav. Ecol. Sociobiol 63: 953-958. [full text], DOI: 10.1007/s00265-009-0738-1


Velavan TP, Sahm S, Schulenburg H, Michiels NK (2009):
High genetic diversity and heterogeneous parasite load in the earthworm Lumbricus terrestris on a German meadow. Soil Biol Biochem 41: 1591-1595 [full text], DOI: 10.1016/j.soilbio.2009.03.026 



Anthes, N., H. Schulenburg & N.K. Michiels (2008):
Evolutionary links between reproductive morphology and mating behaviour in opisthobranch gastropods. Evolution 62: 900-916. [full text], DOI: 10.1111/j.1558-5646.2008.00326.x


Anthes, N., T. Fartmann & G. Hermann (2008):
The Duke of Burgundy butterfly and its dukedom: larval niche variation in Hamearis lucina across Central Europe. J. Insect Cons. 12: 3-14. [full text], DOI: 10.1007/s10841-007-9084-7


D'Souza TG, Bellenhaus V, Wesselmann R, Michiels NK (2008):
Sperm length and sperm fertility in sperm-dependent parthenogens. Biol. J. Linnean Soc., Volume: 91, Number: 1, Pages: 81-87 [full text], DOI: 10.1111/j.1095-8312.2007.00913.x


D'Souza & Michiels (2008):
Correlation between genotypic diversity and fitness across parthenogenetic flatworm populations. J. Evol. Biol., 21: 276-286. [full text], DOI: 10.1111/j.1420-9101.2007.01446.x


Gagern, A., T. Schürg, N. Michiels, G. Schulte, D. Sprenger, N. Anthes (2008):
Behavioural response to interference competition in a sessile suspension feeder. Marine Ecology Progress Series 353: 131-135. [full text], DOI: 10.3354/meps07204


Michiels N.K., Nils Anthes, Nathan S. Hart, Juergen Herler, Alfred J. Meixner, Frank Schleifenbaum, Gregor Schulte, Ulrike E. Siebeck, Dennis Sprenger and Matthias F. Wucherer (2008):
Red fluorescence in reef fish: a novel signalling mechanism? BMC Ecology Volume 8:16 [free full text], DOI: 10.1186/1472-6785-8-16


Novo M. , Velavan T.P., Almodóvar A., Schulenburg H., Díaz-Cosín D.J., & Michiels N.K. (2008):
Microsatellite markers for the drought-resistant earthworm Hormogaster elisae Molecular Ecology Resources [full text], DOI: 10.1111/j.1755-0998.2008.02105.x


Pujol N, Zugasti O, Wong D, Couillault C, Kurz CL, Schulenburg H, Ewbank JJ (2008):
Anti-fungal innate immunity in C. elegans is enhanced by evolutionary diversification of antimicrobial peptides. PLoS Pathogens, 4(7) [full text] ,DOI: 10.1371/journal.ppat.1000105


Putz, A., N.K. Michiels & N. Anthes (2008):
Mating behaviour of the sperm trading sea slug Chelidonura hirundinina: repeated sex role alternation balances reciprocity. Ethology, 114: 85-94 [full text], DOI: 10.1111/j.1439-0310.2007.01440.x


Schulenburg H, Boehnisch C (2008):
Diversification and adaptive sequence evolution of Caenorhabditis lysozymes (Nematoda: Rhabditidae). BMC-Evol. Biol. 8:114 [full text], DOI: 10.1186/1471-2148-8-114


Schulenburg H, Hoeppner MP, Weiner III J, Bornberg-Bauer E (2008):
Specificity of the innate immune system and diversity of C-type lectin domain (CTLD) proteins in the nematode Caenorhabditis elegans. Immunobiol. 213:237-250. [full text], DOI: 10.1016/j.imbio.2007.12.004


Sprenger, D., N. Anthes & N.K. Michiels (2008):
Multiple mating affects offspring size in the opisthobranch Chelidonura sandrana. Marine Biology 153: 891-897 [full text],  DOI: 10.1007/s00227-007-0861-3


Sprenger, D., J. Faber, N.K. Michiels & N. Anthes (2008):
Natural female mating rate maximizes hatchling size in a marine invertebrate. J. Animal Ecol. Volume 77 Issue 4, Pages 696 - 701 [full text], DOI: 10.1111/j.1365-2656.2008.01376.x



Anthes, N. & N.K.Michiels (2007):
Precopulatory stabbing, hypodermic injections and unilateral copulations in a hermaphroditic sea slug. Biology Letters 3: 121-124. [full text ], DOI: 10.1098/rsbl.2006.0596


Anthes, N. & N.K. Michiels (2007):
Reproductive morphology, mating behaviour, and spawning ecology in cephalaspid sea slugs (Aglajidae and Gastropteridae). Invertebrate Biology 126 (4): 335-365, [full text],  DOI: 10.1111/j.1744-7410.2007.00096.x


Brauer VS, Schärer L and Michiels NK (2007):
Phenotypically flexible sex allocation in a simultaneous hermaphrodite. Evolution 61: 216-222. [full text], DOI: 10.1111/j.1558-5646.2007.00018.x


Bruvo R, Schulenburg H, Storhas M, Michiels NK (2007):
Synergism between mutational meltdown and Red Queen in parthenogenetic biotypes of the freshwater planarian Schmidtea polychroa. Oikos 116: 313-323 [full text], DOI: 10.1111/j.0030-1299.2007.15388.x


Field SG, Lange M, Schulenburg H, Velavan TP, Michiels NK (2007):
Genetic diversity and parasite defense in a fragmented urban metapopulation of Lumbricus terrestris. Anim. Conserv. 10: 162-175, [full text], DOI: 10.1111/j.1469-1795.2006.00084.x


Field SG, Michiels NK (2007):
Acephaline gregarine parasites (Monocystis) are not transmitted sexually among their lumbricid earthworm hosts. J. Parasitol. 92: 292–297. [full text], DOI: 10.1645/GE-643R.1


Haag E, Chamberlin H, Coghlan A, Fitch DHA, Peters AD, Schulenburg H. (2007):
Evolutionary biology of Caenorhabditis nematodes: If they all look alike, you aren't looking hard enough! Trends Genet. 23:101-104, [full text], DOI: 10.1016/j.tig.2007.01.002 


Hasshoff M, Tonn D, Boehnisch C, Hasert B, Schulenburg H. (2007):
The role of Caenorhabditis elegans insulin-like signalling in the behavioural avoidance of pathogenic Bacillus thuringiensis. FASEB J. 21:1801-1812, [full text], DOI: 10.1096/fj.06-6551com.


Schmitt V, Anthes, N, Michiels NK (2007): 
Mating behaviour in the sea slug Elysia timida (Opisthobranchia, Sacoglossa): hypodermic injection, sperm transfer and balanced reciprocity. Frontiers in Zoology 4:17, [free full text], DOI: 10.1186/1742-9994-4-17


Schulenburg H, Boehnisch C, Michiels NK (2007):
How do invertebrates generate a highly specific innate immune response? Mol. Immunol. 44:3338-3344, [full text], DOI: 10.1016/j.molimm.2007.02.019 


Schulenburg H, Ewbank JJ (2007):
The genetics of pathogen avoidance in C. elegans. Mol. Microbiol. 66:563-570. [full text], DOI: 10.1111/j.1365-2958.2007.05946.x


Sicard M, Hering S, Schulte R, Schulenburg H (2007) The effect of pathogenic Photorhabdus luminescens on survival, development, population growth, and behavioural defences of Caenorhabditis elegans. Environm. Microbiol. 9:12-25 [full text], DOI: 10.1111/j.1462-2920.2006.01099.x


Velavan TP, Schulenburg H, Michiels NK (2007):
Development and characterization of novelmicrostatellite markers for the common earthworm (Lumbricus terrestris L.) Mol. Ecol. Notes, [full text], DOI: 10.1111/j.1471-8286.2007.01776.x



Anthes, N, Putz, A, Michiels NK (2006):
Hermaphrodite sex role preferences: the role of partner body size, mating history and female fitness in the sea slug Chelidonura sandrana. Behav Ecol Sociobiol 60: 359-367. [full text], DOI: 10.1007/s00265-006-0173-5


Anthes N, Putz A, Michiels NK (2006):
Sex role preferences, gender conflict and sperm trading in simultaneous hermaphrodites: a new framework . Animal Behaviour Volume: 72, Issue: 1, Pages: 1-12, [full text], DOI: 10.1016/j.anbehav.2005.09.017


D'Souza TG, Michiels NK. (2006):
Genetic signatures of occasional sex in parthenogenetic subpopulations of the freshwater planarian Schmidtea polychroa. Freshw. Biol., 51: 1890-1900. [full text], DOI: 10.1111/j.1365-2427.2006.01622.x


D'Souza TG, Schulte RD, Schulenburg H, Michiels NK. (2006):
Paternal inheritance in parthenogenetic forms of the planarian Schmidtea polychroa. Heredity Volume: 97, Pages: 97-101,  [full text], DOI: 10.1038/sj.hdy.6800841


Field SG, Michiels NK (2006):
Does the Gregarine Monocystis sp. manipulate host surface behaviour in the earthworm Lumbricus terrestris? Soil Biol. Biochem. 38(6) 1334-1339 [full text], DOI: 10.1016/j.soilbio.2005.08.022


König S, Mehlich A-M, Büllesbach J, Michiels N (2006):
Allohormones inLumbricus terrestris? Mass spectrometry of the setal gland product indicates possible role of ubiquitin. Invertebrate reproduction and development 49 (1-2): 103-111


Lüttmann K, Anthes N, Riss S, D’Souza TG, Michiels NK (2006):
Population size estimate of a reef flat aggregation of Chromodoris annulata (Opisthobranchia, Chromodoridae). J. Moll. Stud. 72: 214-216 [full text], DOI: 10.1093/mollus/eyi065


Michiels NK, Koene JM (2006):
Sexual selection favours harmful mating in hermaphrodites more than in gonochorists. Integrative and Comparative Biology 46: 473-480  [full text], DOI: 10.1093/icb/icj043


Wägele, H., I. Burghardt, N. Anthes, J. Evertsen, A. Klussmann-Kolb & G. Brodie (2006):
Species diversity of Opisthobranch Molluscs from Lizard Island, Great Barrier Reef, Australia. Records of the Western Australian Museum, Suppl. 69: 33-60.



Anthes N, Putz A, Michiels NK (2005):
Gender trading in a hermaphrodite. Current Biology 15: R792-R793, [full text], DOI: 10.1016/j.cub.2005.09.035


Anthes N, Michiels NK (2005):
Do "sperm trading" simultaneous hermaphrodites always trade sperm? Behav. Ecol. 15: 188-195. [full text], DOI: 10.1093/beheco/arh150


D'Souza TG, Storhas M, Michiels NK (2005):
The effect of polyploidy on fitness in a parthenogenetic flatworm. Biol. J. Linnean Soc. 85: 191-198. [full text], DOI: 10.1111/j.1095-8312.2005.00482.x



Field SG, Michiels NK (2005):
Parasitism and growth in the earthworm Lumbricus terrestris: fitness costs of the gregarine parasite Monocystis sp. Parasitology 130, Pages: 397-403, [full text],  DOI: 10.1017/S0031182004006663

Haber M, Schüngel M, Putz A, Müller S, Hasert B, Schulenburg H (2005):
Evolutionary history of Caenorhabditis elegans inferred from microsatellites: evidence for spatial and temporal genetic differentiation and the occurrence of outbreeding. Mol. Biol. Evol. 22:160-173, [full text], DOI: 10.1093/molbev/msh264


Koene JM, Schulenburg H (2005):
Shooting darts: co-evolution and counter-adaptation in hermaphroditic snails. BMC-Evol. Biol. 5:25. [full text], DOI:10.1186/1471-2148-5-25


Koene JM, Pförtner T, Michiels NK (2005):
Piercing the partner's skin influences sperm storage in earthworms. Behav. Ecol. Sociobiol. 59:243-249.[full text], DOI: 10.1007/s00265-005-0030-y


Schärer L, Sandner P, Michiels NK (2005):
Trade-off between male and female allocation in the simultaneously hermaphroditic flatworm Macrostomum sp. J. Evol. Biol. 18:396-404, [full text], DOI: 10.1111/j.1420-9101.2004.00827.x


Schulenburg H, Roeder T (2005):
Innate immunity: building bridges in the lake district of Plön in Northern Germany. Dev. Comp. Immunol. 29:91-93. [full text], DOI: 10.1016/j.dci.2004.06.003 



Bruvo R, Michiels NK, D'Souza TG, Schulenburg H (2004):
A simple method for the calculation of microsatellite genotype distances irrespective of ploidy level. Mol. Ecol. 13:2101-2106, [full text], DOI: 10.1111/j.1365-294X.2004.02209.x


D'Souza TG, Storhas M, Schulenburg H, Beukeboom LW, Michiels NK (2004):
Occasional sex in an "asexual" polyploid hermaphrodite. Proc. R. Soc. Lond. B. 271:1001-1007, [full text], DOI: 10.1098/rspb.2004.2675


Field SG, Kurtz J, Cooper EL, Michiels NK (2004):
Evaluation of an Innate Immune Reaction to Parasites in Earthworms. J. Inv. Pathol. 86:45-49, [full text], DOI: 10.1016/j.jip.2004.04.001 


Schulenburg H, Ewbank JJ (2004):
Diversity and specificity in the interactions between the nematode Caenorhabditis elegans and the pathogenic bacterium Serratia marcescens. BMC-Evol. Biol. 4:49 [full text], DOI: 10.1186/1471-2148-4-49


Schulenburg H, Kurz CL, Ewbank JJ (2004):
Evolution of the innate immune system - the worm perspective. Immunol. Rev. 198:36-58, [full text], DOI: 10.1111/j.0105-2896.2004.0125.x 


Schulenburg H, Müller S (2004):
Natural variation in the response of Caenorhabditis elegans towards Bacillus thuringiensis. Parasitology 128:433-443, [full text], DOI: 10.1017/S003118200300461X



Norbert Pongratz, Martin Storhas, Salvador Carranza and Nicolaas K Michiels (2003)
Phylogeography of competing sexual and parthenogenetic forms of a freshwater flatworm: patterns and explanations. BMC Evolutionary Biology 3:23, [full text], DOI: 10.1186/1471-2148-3-23


Field SG, Schirp HJ, Michiels NK (2003):
The influence of Monocystis sp infection on growth and mating behaviour of the earthworm Lumbricus terrestris Canadian Journal of Zoology 81 (7): 1161-1167, [full text], DOI: 10.1139/z03-110 


Pongratz N, Michiels NK (2003):
High multiple paternity and low last-male sperm precedence in a hermaphroditic planarian flatworm: consequences for reciprocity patterns Molecular Ecology 12 (6): 1425-1433  [full text], DOI: 10.1046/j.1365-294X.2003.01844.x


Michiels NK, Kuhl A (2003):
Altruistic sperm donation in a sperm-dependent parthenogenetic hermaphrodite is stabilized by reciprocal sperm exchange Journal of Zoology 259: 77-82 Part 1, [full text], DOI: 10.1017/S095283690200300X


Michiels NK, Raven-Yoo-Heufes A, Brockmann KK (2003):
Sperm trading and sex roles in the hermaphroditic opisthobranch sea slug Navanax inermis: eager females or opportunistic males? Biological Journal of the Linnean Society, 78 (1): 105-116  [full text], DOI: 10.1046/j.1095-8312.2003.00135.x



Schulenburg JHGvd, Hurst GDD, Tetzlaff D, Booth GE, Zakharov IA, Majerus MEN (2002):
History of infection with different male-killing bacteria in the two-spot ladybird beetle Adalia bipunctata revealed through mitochondrial DNA sequence analysis. Genetics 160(3):1075-1086. [full text]


Sloggett JJ, Volkl W, Schulze W, Schulenburg JHGvd, Majerus MEN (2002):
The ant-associations and diet of the ladybird Coccinella magnifica (Coleoptera: Coccinellidae). Eur. J. Entomol. 99:565-569. [full text]


Koene JM, Sundermann G, Michiels NK (2002):
On the function of body piercing during copulation in earthworms Invertebrate Reproduction and Development 41 (1-3): 35-40 


Pongratz N, Gerace L, Michiels NK (2002):
Genetic differentiation within and between populations of a hermaphroditic freshwater planarian HEREDITY 89: 64-69 Part 1 [full text], DOI: 10.1038/sj.hdy.6800102



Michiels NK, Beukeboom LW, Pongratz N, Zeitlinger J (2001):
Parthenogenetic flatworms have more symbionts than their coexisting, sexual conspecifics. Journal of Evolutionary Biology 14(1): 110-119.


Michiels NK, Hohner A, Vorndran I (2001):
Pre-copulatory mate assessment in relation to body size in the earthworm Lumbricus terrestris: avoidance of dangerous liaisons? Behavioral Ecology 12(5): 612-618.  


Pongratz N, Gerace L, Martin Alganza A, Beukeboom LW, Michiels NK (2001):
Microsatellite development and inheritance in the planarian flatworm Schmidtea polychroa. Belg. J. Zool. 131: 71-75.


Schulenburg JHGvd, Hancock JM, Pagnamenta A, Sloggett JJ, Majerus MEN, Hurst GDD (2001):
Extreme length and length variation in the first ribosomal internal transcribed spacer of ladybird beetles (Coleoptera: Coccinellidae). Mol. Biol. Evol. 18:648-660.  


Schulenburg JHGvd, Habig M, Sloggett JJ, Webberley KM, Bertrand D, Hurst GDD, Majerus MEN (2001):
Incidence of male-killing Rickettsia spp. (a-Proteobacteria) in the ten-spot ladybird beetle Adalia decempunctata L. (Coleoptera: Coccinellidae). Appl. Environm. Microbiol. 67:270-277.  


Jiggins FM, Schulenburg JHGvd, Hurst GDD, Majerus MEN (2001):
Recombination confounds interpretations of Wolbachia evolution. Proc. R. Soc. Lond. B 268:1423-1427.  


Jiggins FM, Hurst GDD, Schulenburg JHGvd, Majerus MEN (2001):
Two male-killing Wolbachia strains coexist within a population of the butterfly Acraea encedon. Heredity 86:161-166.



Michiels NK, Bakovski B (2000):
Sperm trading in a hermaphroditic flatworm: Reluctant fathers and sexy mothers. Animal Behaviour 59: 319-325.


Storhas MG, Weinzierl RP, Michiels NK (2000): 
Paternal sex in parthenogenetic planarians: a tool to investigate the accumulation of deleterious mutations. Journal of Evolutionary Biology 13(1): 1-8.



Greeff JM, Storhas MG, Michiels NK (1999):
Reducing losses to offspring mortality by redistributing resources. Functional Ecology 13(6): 786-792.


Greeff JM, Michiels NK (1999):
Low potential for sexual selection in simultaneously hermaphroditic animals. Proceedings of the Royal Society,Series B266: 1671-1676.


Michiels NK, Beukeboom LW, Greeff JM, Pemberton AJ (1999):
Individual control over reproduction: an underestimated element in the maintenance of sex? Journal of Evolutionary Biology 12:1036-1039.


Michiels NK (1999):
Sexual adaptation to high density in hermaphrodites. Invertebrate Reproduction and Development 36(1-3): 35-40.


Weinzierl RP, Schmidt P, Michiels NK (1999):
High fecundity and low fertility in parthenogenetic planarians. Invertebrate Biology 118(2): 87-94.


Weinzierl RP, Beukeboom LW, Gerace L, Michiels NK (1999):
Spatial and ecological overlap between coexisting sexual and parthenogenetic Schmidtea polychroa Tricladida; Platyhelminthes? Hydrobiologia 392(11): 179-185.


Greeff JM, Michiels NK (1999):
Sperm digestion and reciprocal sperm transfer can drive hermaphrodite sex allocation to equality. American Naturalist 153(4): 421-430.



Beukeboom LW, Sharbel TF, Michiels NK. (1998):
Reproductive modes, ploidy distribution, and supernumerary chromosome frequencies of the flatworm Polycelis nigra (Platyhelminthes: Tricladida). Hydrobiologia 383: 277-285.


Vreys C, Michiels NK (1998):
Sperm trading by volume in a hermaphroditic flatworm with mutual penis intromission. Animal Behaviour 56(3): 777-785.


Beukeboom LW, Seif, M, Plowman AB, De Ridder F, Michiels NK (1998):
Phenotypic fitness effects of B chromosomes in the pseudogamous parthenogenetic planarian Polycelis nigra. Heredity 80(5): 594-603.


Michiels NK. (1998):
Mating conflicts and sperm competition in simultaneous hermaphrodites. pp. 219-254. In: Birkhead TR, Møller AP (eds), Sperm Competition and Sexual Selection. Academic Press, London.


Pongratz N, Sharbel T, Beukeboom LW, Michiels NK (1998):
Allozyme variability in sexual and parthenogenetic freshwater planarians - evidence for polyphyletic origin of parthenogenetic lineages through hybridization with coexisting sexuals. Heredity 81(1): 38-47.


Michiels NK, Streng A. (1998):
Sperm exchange in a simultaneous hermaphrodite. Behavioural Ecology and Sociobiology 42: 171-178.


Weinzierl RP, Berthold K, Beukeboom LW, Michiels NK (1998):
Reduced male allocation in a parthenogenetic hermaphrodite (Dugesia polychroa, Tricladida, Platyhelminthes). Evolution 52(1): 109-115.


Michiels NK, Newman LJ (1998):
Sex and violence in hermaphrodites. Nature 391(6668): 647.



Vreys C, Michiels NK (1997):
Flatworms flatten to size up each other. Proceedings of the Royal Society London, Series B 264: 1559-1564.


Vreys C, Schockaert ER, Michiels NK. (1997):
Formation, transfer and assimilation of the spermatophore of the hermaphroditic planarian Dugesia gonocephala (Tricladida, Paludicola). Canadian Journal of Zoology 75: 1479-1486.


Ramachandran S, Beukeboom LW, Gerace L, Pavlovic N, Carranza S, Michiels NK. (1997):
Isolation and characterization of microsatellites in the planarian Dugesia polychroa. Molecular Ecology 6: 389-391.


Vreys C, Schockaert ER, Michiels NK (1997):
Unusual pre-copulatory behaviour in the hermaphroditic planarian flatworm, Dugesia gonocephala (Tricladida, Paludicola). Ethology 103: 208-221.



Peters A, Michiels NK (1996):
Do simultaneous hermaphrodites choose their mates? Effects of body size in a planarian flatworm. Freshwater Biology 36: 623-630.


Beukeboom LW, Seif M, Mettenmeyer T, Plowman AB, Michiels NK (1996):
Paternal inheritance of B chromosomes in a parthenogenetic hermaphrodite. Heredity 77: 646-654.


Beukeboom LW, Weinzierl RP, Reed KM, Michiels NK (1996):
Distribution and origin of chromosomal races in the freshwater planarian Dugesia polychroa (Turbellaria: Tricladida). Hereditas 124(1): 7-15.


Peters A, Michiels NK (1996):
Evidence for lack of inbreeding avoidance by selective mating in a simultaneous hermaphrodite. Invertebrate Biology 115(2): 99-103.


Peters A, Streng A, Michiels NK (1996):
Mating behaviour in a hermaphroditic flatworm with reciprocal insemination: do they assess their mates during copulation? Ethology 102(3): 236-251.


Nuyts E, Michiels NK (1996):