Dominance, aggression and physiological stress in wild male Assamese macaques (Macaca assamensis)OSTNER, Julia; HEISTERMANN, Michael; SCHÜKE, Oliver et al.Hormones and behavior (Print). 2008, Vol 54, Num 5, pp 613-619, issn 0018-506X, 7 p.Article

Ovarian cycle and effect of social changes on adrenal and ovarian function in Pygathrix nemaeusHEISTERMANN, Michael; ADEMMER, Christelle; KAUMANNS, Werner et al.International journal of primatology. 2004, Vol 25, Num 3, pp 689-708, issn 0164-0291, 20 p.Article

Low female stress hormone levels are predicted by same- or opposite-sex sociality depending on season in wild Assamese macaquesFÜRTBAUER, Ines; HEISTERMANN, Michael; SCHÜLKE, Oliver et al.Psychoneuroendocrinology. 2014, Vol 48, pp 19-28, issn 0306-4530, 10 p.Article

Social parameters and urinary testosterone level in male chimpanzees (Pan troglodytes)KLINKOVA, Ekaterina; HEISTERMANN, Michael; HODGES, J. Keith et al.Hormones and behavior (Print). 2004, Vol 46, Num 4, pp 474-481, issn 0018-506X, 8 p.Article

Timing and probability of ovulation in relation to sex skin swelling in wild West African chimpanzees, Pan troglodytes verusDESCHNER, Tobias; HEISTERMANN, Michael; HODGES, Keith et al.Animal behaviour. 2003, Vol 66, pp 551-560, issn 0003-3472, 10 p., 3Article

Seasonal variation and social correlates of androgen excretion in male redfronted lemurs (Eulemur fulvus rufus)OSTNER, Julia; KAPPELER, Peter M; HEISTERMANN, Michael et al.Behavioral ecology and sociobiology (Print). 2002, Vol 52, Num 6, pp 485-495, issn 0340-5443, 11 p.Article

Host Intrinsic Determinants and Potential Consequences of Parasite Infection in Free-Ranging Red-Fronted Lemurs (Eulemur fulvus rufus)CLOUGH, Dagmar; HEISTERMANN, Michael; KAPPELER, Peter M et al.American journal of physical anthropology. 2010, Vol 142, Num 3, pp 441-452, issn 0002-9483, 12 p.Article

Influence of reproductive season and rank on fecal glucocorticoid levels in free-ranging male Verreaux's sifakas (Propithecus verreauxi)FICHTEL, Claudia; KRAUS, Cornelia; GANSWINDT, André et al.Hormones and behavior (Print). 2007, Vol 51, Num 5, pp 640-648, issn 0018-506X, 9 p.Article

Urinary progestogen and estrogen excretion during pregnancy in Eulemur macaco flavifrons, E. rubriventer, and Hapalemur griseus occidentalisGERBER, Patricia; MOISSON, Pierre; HEISTERMANN, Michael et al.International journal of primatology. 2004, Vol 25, Num 2, pp 449-463, issn 0164-0291, 15 p.Article

Female sexual swelling size, timing of ovulation, and male behavior in wild West African chimpanzeesDESCHNER, Tobias; HEISTERMANN, Michael; HODGES, Keith et al.Hormones and behavior (Print). 2004, Vol 46, Num 2, pp 204-215, issn 0018-506X, 12 p.Article

Male competition and its hormonal correlates in Assamese macaques (Macaca assamensis)OSTNER, Julia; HEISTERMANN, Michael; SCHUTKE, Oliver et al.Hormones and behavior (Print). 2011, Vol 59, Num 1, pp 105-113, issn 0018-506X, 9 p.Article

Brief Communication: Fecal Androgen Excretion and Fetal Sex Effects During Gestation in Wild Assamese Macaques (Macaca assamensis)FÜRTBAUER, Ines; HEISTERMANN, Michael; SCHÜLKE, Oliver et al.American journal of physical anthropology. 2012, Vol 147, Num 2, pp 334-339, issn 0002-9483, 6 p.Article

The energetics of male―male endurance rivalry in free-ranging rhesus macaques, Macaca mulattaHIGHAM, James P; HEISTERMANN, Michael; MAESTRIPIERI, Dario et al.Animal behaviour (Print). 2011, Vol 81, pp 1001-1007, issn 0003-3472, 7 p., 5Article

Infants as costly social tools in male Barbary macaque networksHENKEL, Stefanie; HEISTERMANN, Michael; FISCHER, Julia et al.Animal behaviour (Print). 2010, Vol 79, pp 1199-1204, issn 0003-3472, 6 p., 6Article

Sexual swellings in wild white-handed gibbon females (Hylobates lar) indicate the probability of ovulationBARELLI, Claudia; HEISTERMANN, Michael; BOESCH, Christophe et al.Hormones and behavior (Print). 2007, Vol 51, Num 2, pp 221-230, issn 0018-506X, 10 p.Article

Female sexual behavior, but not sex skin swelling, reliably indicates the timing of the fertile phase in wild long-tailed macaques (Macaca fascicularis)ENGELHARDT, Antje; HODGES, J. Keith; NIEMITZ, Carsten et al.Hormones and behavior (Print). 2005, Vol 47, Num 2, pp 195-204, issn 0018-506X, 10 p.Article

Mating patterns and sexual swellings in pair-living and multimale groups of wild white-handed gibbons, Hylobates larBARELLI, Claudia; HEISTERMANN, Michael; BOESCH, Christophe et al.Animal behaviour. 2008, Vol 75, pp 991-1001, issn 0003-3472, 11 p., 3Article

Characterization and social correlates of fecal testosterone and cortisol excretion in wild male Saguinus mystaxHUCK, Maren; LÖTTKER, Petra; HEYMANN, Eckhard W et al.International journal of primatology. 2005, Vol 26, Num 1, pp 159-179, issn 0164-0291, 21 p.Article

Do males time their mate-guarding effort with the fertile phase in order to secure fertilisation in Cayo Santiago rhesus macaques?DUBUC, Constance; MUNIZ, Laura; HEISTERMANN, Michael et al.Hormones and behavior (Print). 2012, Vol 61, Num 5, pp 696-705, issn 0018-506X, 10 p.Article

Post-conception mating in wild long-tailed macaques (Macaca fascicularis) : Characterization, endocrine correlates and functional significance. CommentaryENGELHARDT, Antje; HODGES, J. Keith; HEISTERMANN, Michael et al.Hormones and behavior (Print). 2007, Vol 51, Num 1, pp 1-10, issn 0018-506X, 10 p.Article

Urinary testosterone metabolite levels in captive bonobos: Relationship with ageSANNEN, Adinda; VAN ELSACKER, Linda; EENS, Marcel et al.Folia Primatologica. 2004, Vol 75, Num 2, pp 107-110, issn 0015-5713, 4 p.Article

Male mating behaviour in relation to female sexual swellings, socio-sexual behaviour and hormonal changes in wild Barbary macaquesYOUNG, Christopher; MAJOLO, Bonaventura; HEISTERMANN, Michael et al.Hormones and behavior (Print). 2013, Vol 63, Num 1, pp 32-39, issn 0018-506X, 8 p.Article

Certain aspects of bonobo female sexual repertoire are related to urinary testosterone metabolite levelsSANNEN, Adinda; VAN ELSACKER, Linda; HEISTERMANN, Michael et al.Folia Primatologica. 2005, Vol 76, Num 1, pp 21-32, issn 0015-5713, 12 p.Article

Endocrine correlates of reproductive status in breeding and nonbreeding wild female moustached tamarinsLÖTTKER, Petra; HUCK, Maren; HEYMANN, Eckhard W et al.International journal of primatology. 2004, Vol 25, Num 4, pp 919-937, issn 0164-0291, 19 p.Article

Urinary testosterone metabolite levels and aggressive behaviors in male and female bonobos (Pan paniscus)SANNEN, Adinda; VAN ELSACKER, Linda; HEISTERMANN, Michael et al.Aggressive behavior (Print). 2004, Vol 30, Num 5, pp 425-434, issn 0096-140X, 10 p.Article