The Okavango baboons

Read more about the Okavango baboons in the New York Times

Grooming networks and stress alleviation in female baboons.

Wittig, R.M., Crockford, C., Lehmann, J., Whitten, P.L., Seyfarth, R.M. & Cheney, D.L. Focused grooming networks and stress alleviation in wild female baboons. Hormones and Behavior (2008).

Crockford, C., Wittig, R.M., Whitten, P.L., Seyfarth, R.M. & Cheney, D.L. 2008. Social stressors and coping mechanisms in wild female baboons (Papio hamadryas ursinus). Hormones and Behavior 53, 254-265 (2008).

Kin-mediated reconciliation substitutes for direct reconciliation in female baboons.
Wittig, R.M., Crockford, C., Wikberg, E., Seyfarth, R.M. & Cheney, D.L. Proceedings of the Royal Society of London, Series B 274, 1109-1115 (2007).

Vocal alliances in chacma baboons, Papio hamadryas ursinus.
Wittig, R.M., Crockford, C., Seyfarth, R.M. & Cheney, D.L. Behavioral Ecology & Sociobiology 61, 899-909 (2007).

Baboons eavesdrop to deduce mating opportunities.
Crockford, C., Wittig, R.M., Seyfarth, R.M. Cheney, D.L. Animal Behaviour 73, 885-890 (2007).

Female hierarchy instability, male immigration, and infanticide increase glucocorticoid levels in female chacma baboons.
Engh, A.E., Beehner, J.C., Bergman, T.J., Whitten, P.L., Hoffmeier, R.R., Seyfarth, R.M. & Cheney, D.L. Animal Behaviour 71, 1227-1237 (2006).

The effect of new alpha males on female stress in free-ranging baboons.
Beehner, J.C., Bergman, T.J., Cheney, D.L., Seyfarth, R.M. & Whitten, P.L. 2005. Animal Behaviour 69, 1211-1221 (2005).

Behavioural and hormonal responses to predation in female chacma baboons (Papio hamadryas ursinus).
Engh, A.E., Beehner, J.C., Bergman, T.J., Whitten, P.L., Hoffmeier, R.R., Seyfarth, R.M. & Cheney, D.L. Proceedings of the Royal Society of London, Series B. 273, 707-712 (2006).

Who, me? Can baboons infer the target of vocalisations?
Engh, A.E., Hoffmeier, R.R., Cheney, D.L. & Seyfarth, R.M., Animal Behaviour 71, 381-387 (2006).

Testosterone predicts future dominance rank and mating activity among male chacma baboons.
Beehner, J.C., Bergman, T.J., Cheney, D.L., Seyfarth, R.M. & Whitten, P.L. Behavioral Ecology & Sociobiology 59, 469-479 (2006).

Interactions in male baboons: the importance of both males' testosterone.
Bergman, T.J., Beehner, J.C., Cheney, R.M., Seyfarth, R.M. & Whitten, P.L. Behavioral Ecology & Sociobiology 59, 480-489 (2006).

Correlates of stress in free-ranging male chacma baboons.
Bergman, T.J., Beehner, J.C., Cheney, D.L., Seyfarth, R.M. & Whitten, P.L. Animal Behaviour 70, 703-713 (2005).

Constraints and preadaptations in the earliest stages of language evolution.
Cheney, D.L. & Seyfarth, R.M. 2005. Linguistic Review 22, 135-159 (2005).

Signalers and receivers in animal communication.
Seyfarth, R.M. & Cheney, D.L. Annual Review of Psychology 54, 145-173 (2003)

Contextual factors mediating contests between male chacma baboons in Botswana: The effect of food, f riends, and females.
Kitchen, D.M., Cheney, D.L., & Seyfarth, R.M. International Journal of Primatology 26, 105-125 (2005).

Factors mediating inter-group encounters in savannah baboons (Papio cynocephalus ursinus).
Kitchen, D.M., Cheney, D.L., & Seyfarth, R.M. 2004. Behaviour 141, 197-218 (2004).

Baboon loud calls advertise male quality: Acoustic features and their relation to rank, age, and exhaustion.
Fischer, J., Kitchen, D.M., Seyfarth, R.M. & Cheney, D.L. Behavioral Ecology & Sociobiology 56, 140-148 (2004).

Loud calls as an indicator of dominance in male baboons, Papio cynocephalus ursinus.
Kitchen, D.M., Seyfarth, R.M., Fischer, J., & Cheney, D.L. Behavioral Ecology & Sociobiology 53, 374-384 (2003).

Acoustic features of male baboon loud calls: Influences of context, age, and individuality.
Fischer, J., Hammerschmidt, K., Cheney, D.L. & Seyfarth, R.M. Journal of the Acoustical Society of America 111, 1465-1474 (2002).

Factors affecting reproduction and mortality among baboons in the Okavango Delta, Botswana.
Cheney, D.L., Seyfarth, R.M., Fischer, J., Beehner, J. Bergman, T., Johnson, S.E., Kitchen, D.M., Palombit, R.A., Rendall, D. & Silk, J.B. International Journal of Primatology 25, 401-428 (2004).

Female baboons' responses to male loud calls.
Kitchen, D.M., Cheney, D.L., & Seyfarth, R.M. Ethology 109, 401-412 (2003).

Hierarchical classification by rank and kinship in baboons. Bergman, T.J., Beehner, J.C., Cheney, D.L. & Seyfarth, R.M. Science 302, 1234-1236 (2003).

Acoustic features of female chacma baboon barks.
Fischer, J., Hammerschmidt, K.,Seyfarth, R.M., & Cheney, D.L. 2001. Ethology 107, 33-54 (2001).

Baboon responses to graded bark variants.
Fischer, J., Metz , M., Cheney, D.L., & Seyfarth, R.M. Animal Behaviour 61, 925-931 (2001).

Female-female competition for male “friends” in wild chacma baboons (Papio cynocephalus ursinus).
Palombit, R.A., Cheney, D.L., & Seyfarth, R.M. Animal Behaviour 61, 1159-1171 (2001).

Proximate factors mediating 'contact' calls in adult female baboons and their infants.
Rendall, D., Cheney, D.L., & Seyfarth, R.M. Journal of Comparative Psychology 114, 36-46 (2000).

The function and mechanisms underlying baboon contact barks. Cheney, D.L., Seyfarth, R.M. & Palombit, R.A. Animal Behaviour 52, 507-518 (1996).

The structure of social relationships among female baboons in the Moremi Reserve, Botswana.
Silk, J.B., Seyfarth, R.M., & Cheney, D.L. Behaviour 136, 679-703 (1999).

The meaning and function of grunt variants in baboons.
Rendall, D., Seyfarth, R.M., Cheney, D.L., & Owren, M.J. Animal Behaviour 57, 583-592 (1999).

The acoustic features of vowel-like grunt calls in chacma baboons (Papio cynocephalus ursinus).
Owren, M.J., Seyfarth, R.M., & Cheney, D.L. Journal of the Acoustical Society of America 101, 2951-2963 (1997).

Recognition of other individuals' social relationships by female baboons.
Cheney, D.L. & Seyfarth, R.M. Animal Behaviour 58, 67-75 (1999).

Reconciliatory grunts by dominant female baboons influence victims' behavior.
Cheney, D.L. & Seyfarth, R.M. Animal Behaviour 54, 409-418 (1997).

The adaptive value of “friendships” to female baboons: Experimental and observational evidence.
Palombit, R.A., Seyfarth, R.M., & Cheney, D.L. Animal Behaviour 54, 599-614 (1997).

The form and function of reconciliation among baboons, Papio cynocephalus ursinus.
Silk, J.B., Cheney, D.L., & Seyfarth, R.M. Animal Behaviour 52, 259-268 (1996).

The role of grunts in reconciling opponents and facilitating interactions among adult female baboons.
Cheney, D.L., Seyfarth, R.M. & Silk, J.B. Animal Behaviour 50, 249-257 (1995).

The responses of female baboons (Papio cynocephalus ursinus) to anomalous social interactions: Evidence for causal reasoning?
Cheney, D.L., Seyfarth, R.M. & Silk, J.B. Journal of Comparative Psychology 109, 134-141 (1995).