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Manuscripts under review or in preparation

Thomsen R (in subm.) Ageing reduces semen quality in a wild primate.

Henkel S, Thomsen R, Ruiz Lambides A, Berger A, Widdig A (in prep.) Do rhesus macaques (Macaca mulatta) recognize group members via olfactory cues alone?

Thomsen R, Ruiz Lambides A, Birkemeyer C, Widdig A (in prep.) Is odour a potential cue used for kin recognition in rhesus macaques (Macaca mulatta)?

Birkemeyer C, Thomsen R, Ruiz-Lambides A, Widdig A (in prep.) Analysing the semiochemical repertoire of rhesus macaques via GC-MS.

Published papers

Zschoke A, Thomsen R (2014) Sniffing behaviours in guenons. Folia Primatologica 85(4): 244-251 [pdf]

Thomsen R (2013) Non-invasive semen collection and analysis in wild macaques. Primates. DOI 10.1007/s10329-013-0393-z

Voigt CC, Klöckner P, Touma C, Neuschl C, Brockmann G, Göritz F, Palme R, Thomsen R (2013) Hormonal stress response of laboratory mice to conventional and minimal-invasive bleeding technique. Animal Welfare 22: 449-455

Thomsen R (2013) Masturbation in non-human primates In: Encyclopedia of Human Sexuality Vol. 1, P Whelehan & A Bolin (eds), Wiley-Blackwell press, Boston

Thomsen R, Voigt CC (2006) Non-invasive blood sampling from primates using laboratory-bred blood sucking bugs (Dipetalogaster maximus, Reduviidae, Heteroptera). Primates 47: 397-400 [pdf]

Thomsen R, Soltis J, Matsubara M, Matsubayashi K, Onuma M, Takenaka O (2006) How costly are ejaculates for Japanese macaques? Primates 47: 272-274 [pdf]

Thomsen R, Soltis J (2004) Male masturbation in free-ranging Japanese macaques. International Journal of Primatology 25: 1033-1041 [pdf]

Thomsen R, Soltis J, Teltscher C (2003) Sperm competition and the function of male masturbation in non-human primates. In: Sexual Selection and Reproductive Competition in Primates: New Perspectives and Directions, CB Jones (ed.), ASP-Book Series, Special Topics in Primatology, Vol. 3, S. 436-453 [pdf]

Soltis J, Thomsen R, Takenaka O (2001) The interaction of male and female reproductive strategies and paternity in wild Japanese macaques, Macaca fuscata. Animal Behaviour 62: 485-494 [pdf]

Soltis J, Thomsen R, Matsubayashi K, Takenaka O (2000) Infanticide by resident males and female counter-strategies in wild Japanese macaques (Macaca fuscata). Behavioural Ecology and Sociobiology 48: 195-202 [pdf]

Thomsen R, Soltis J (2000) Socioecological context of parturition in wild Japanese macaques (Macaca fuscata) on Yakushima island. International Journal of Primatology 21: 685-696 [pdf]

Thomsen R (1997) Observation of the periparturitional behaviour in wild Yakushima macaques (Macaca fuscata). Folia Primatologica 68: 338-342 [pdf]