Dominance, aggression and testosterone in wild chimpanzees: a test of the ‘challenge hypothesis’

Agresti, 1986, Comparing mean ranks for repeated measures data, Communications in Statistics: Theory and Methods, 15, 1417, 10.1080/03610928608829193 Altmann, 1974, Observational study of behavior: sampling methods, Behaviour, 49, 227, 10.1163/156853974X00534 Batchelder, 1992, Dynamic paired-comparison scaling, Journal of Mathematical Psychology, 36, 185, 10.1016/0022-2496(92)90036-7 Berg, 2001, Changes in testosterone, cortisol and estradiol levels in men becoming fathers, Mayo Clinic Proceedings, 76, 582, 10.1016/S0025-6196(11)62407-5 Boesch, 2000 Bygott, J. D. 1974. Agonistic behaviour and dominance in wild chimpanzees. Ph.D. thesis, University of Cambridge. Bygott, 1979, Agonistic behavior, dominance and social structure in wild chimpanzees of the Gombe National Park, 405 Cavigelli, 2000, Mating season aggression and fecal testosterone levels in male ring-tailed lemurs (Lemur catta), Hormones and Behavior, 37, 246, 10.1006/hbeh.2000.1585 Chapman, 1993, Range use of the forest chimpanzees of Kibale: implications for the understanding of chimpanzee social organization, American Journal of Primatology, 31, 263, 10.1002/ajp.1350310403 Constable, 2001, Noninvasive paternity assignment in Gombe chimpanzees, Molecular Ecology, 10, 1279, 10.1046/j.1365-294X.2001.01262.x Cook, 1987, Measurement of steroid hormone concentrations in blood, urine and tissues, 1 Creel, 1993, Androgens, aggression and reproduction in wild dwarf mongooses: a test of the challenge hypothesis, American Naturalist, 141, 816, 10.1086/285509 Creel, 1997, Rank and reproduction in cooperatively breeding African wild dogs: behavioral and endocrine correlates, Behavioral Ecology, 8, 298, 10.1093/beheco/8.3.298 Czekala, 1994, Diurnal urinary corticoid excretion in the human and gorilla, American Journal of Primatology, 34, 29, 10.1002/ajp.1350340107 De Ridder, 2000, Experimental evidence of a testosterone-induced shift from paternal to mating behaviour in a facultatively polygynous songbird, Behavioral Ecology and Sociobiology, 49, 24, 10.1007/s002650000266 Dixson, 1998 Ellison, 1988, Human salivary steroids: methodological considerations and applications in physical anthropology, Yearbook of Physical Anthropology, 31, 115, 10.1002/ajpa.1330310507 Erb, 1970, Urinary creatinine as an index compound for estimating rate of excretion of steroids in the domestic sow, Journal of Animal Science, 30, 79, 10.2527/jas1970.30179x Fligner, 1981, Robust rank procedures for the Behrens-Fisher problem, Journal of the American Statistical Association, 76, 162, 10.1080/01621459.1981.10477623 Goodall, 1986 Gray, 2002, Marriage and fatherhood are associated with lower testosterone in males, Evolution and Human Behavior, 23, 193, 10.1016/S1090-5138(01)00101-5 Hayaki, 1989, Dominance among male chimpanzees in the Mahale Mountains National Park, Tanzania: a preliminary study, Primates, 30, 187, 10.1007/BF02381303 Hegner, 1987, Effects of experimental manipulation of testosterone levels on parental investment and breeding success in male house sparrows, Auk, 104, 462, 10.2307/4087545 Higley, 1996, CSF testosterone and 5-HIAA correlate with different types of aggressive behaviors, Biological Psychiatry, 40, 1067, 10.1016/S0006-3223(95)00675-3 Holekamp, 1998, Dispersal status influences hormones and behavior in the male spotted hyena, Hormones and Behavior, 33, 205, 10.1006/hbeh.1998.1450 Isabirye-Basuta, 1989, Feeding ecology of chimpanzees in the Kibale Forest, Uganda, 116 Jameson, 1999, Finding an appropriate order for a hierarchy based on probabilistic dominance, Animal Behaviour, 57, 991, 10.1006/anbe.1998.1077 Kepner, 1988, Nonparametric methods for detecting treatment effects in repeated-measures designs, Journal of Statistical Association, 83, 456, 10.1080/01621459.1988.10478617 Knott, 2001, Female reproductive ecology of the apes, 429 Lipson, 1989, Development of protocols for the application of salivary steroid analyses to field conditions, American Journal of Human Biology, 1, 249, 10.1002/ajhb.1310010304 Mehlman, 1997, CSF 5-HIAA, testosterone and sociosexual behaviors in free-ranging male rhesus macaques in the mating season, Psychiatry Research, 72, 89, 10.1016/S0165-1781(97)00084-X Mitani, 2002, Ecological and social correlates of chimpanzee party size, 102 Moss, 2001, Longitudinal gonadal steroid excretion in free-living male and female meerkats (Suricata suricatta), General and Comparative Endocrinology, 122, 158, 10.1006/gcen.2001.7622 Muller, 2002, Agonistic relations among Kanyawara chimpanzees, 112 Muller, 2001, The reproductive ecology of male hominoids, 397 Nishida, 1999, Ethogram and ethnography of Mahale chimpanzees, Anthropological Science, 107, 141, 10.1537/ase.107.141 Sapolsky, 1993, The physiology of dominance in stable versus unstable social hierarchies, 171 Sherry, 2002, Reproductive seasonality in wild chimpanzees: a new method of analysis from Kibale, Uganda, American Journal of Physical Anthropology, Supplement, 34, 140 Strier, 1992 Strier, 1999, Seasonal and social correlates of fecal testosterone and cortisol levels in wild male muriquis (Brachyteles arachnoides), Hormones and Behavior, 35, 125, 10.1006/hbeh.1998.1505 Struhsaker, 1997 Taussky, 1954, A microcolorimetric determination of creatine in urine by the Jaffe reaction, Journal of Biological Chemistry, 208, 853, 10.1016/S0021-9258(18)65610-8 Tutin, 1981, Chimpanzee reproduction in the wild, 239 Van Cauter, 1990, Diurnal and ultradian rhythms in human endocrine function: a minireview, Hormone Research, 34, 45, 10.1159/000181794 Vigilant, 2001, Paternity and relatedness in wild chimpanzee communities, Proceedings of the National Academy of Sciences, U.S.A., 98, 12890, 10.1073/pnas.231320498 Wallis, 1992, Chimpanzee genital swelling and its role in the pattern of sociosexual behavior, American Journal of Primatology, 28, 101, 10.1002/ajp.1350280203 Watts, 1998, Coalitionary mate guarding by male chimpanzees at Ngogo, Kibale National Park, Uganda, Behavioral Ecology and Sociobiology, 44, 43, 10.1007/s002650050513 Whitten, 2000, Evolutionary endocrinology of the cercopithecoids, 269 Wilcox, 1997 Wingfield, 1984, Androgens and mating systems: testosterone-induced polygyny in normally monogamous birds, Auk, 101, 665, 10.2307/4086893 Wingfield, 1990, The ‘challenge hypothesis’: theoretical implications for patterns of testosterone secretion, mating systems and breeding strategies, American Naturalist, 136, 829, 10.1086/285134 Wingfield, 1997, Ecological constraints and the evolution of hormone-behavior interrelationships, Annals of the New York Academy of Sciences, 807, 22, 10.1111/j.1749-6632.1997.tb51911.x Wingfield, 2000, Toward an ecological basis of hormone–behavior interactions in reproduction of birds, 85 Worthman, 1987, Testosterone levels change with subsistence hunting effort in !Kung San men, Psychoneuroendocrinology, 12, 449, 10.1016/0306-4530(87)90079-5 Wrangham, 2000, Why are male chimpanzees more gregarious than mothers? A scramble competition hypothesis, 248 Wrangham, 2002, The cost of sexual attraction: is there a tradeoff in female Pan between sex appeal and received coercion?, 204