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Publications

Crockford C, Deschner T, Ziegler T, Wittig RM. /In Press/. The contribution of endogenous peripheral oxytocin measures to understanding the dynamics of social relationships: a review. /Frontiers Behav. Neuroscience./

Wittig RM, Crockford C, Ziegler, T, Deschner T, Zuberbühler K. (2014). Food sharing is linked to urinary oxytocin levels and bonding in related and unrelated wild chimpanzees. /Proc Roy Soc Ser B/, *281*(1778): 20133096.

Wittig RM, Crockford C, .Langergraber K, Zuberbühler K. (2014). Triadic social interactions operate across time: a field experiment with wild chimpanzees. Proc Roy Soc Ser B, *281*(1779):20133155.

Langergraber KE, Rowney C, Crockford C, Wittig R, Zuberbühler K, & Vigilant L. (2014). Genetic analyses suggest no immigration of adult females and their offspring into the Sonso community of chimpanzees in the Budongo Forest Reserve, Uganda. /American journal of primatology/.

Crockford C, Wittig RM, Langergraber K, Ziegler T, Zuberbühler K, Deschner T (2013) Urinary oxyotcin and social bonding in related and unrelated chimpanzees. /Proc Roy Soc Ser B/2013 *280*(1755):20122765.

Crockford C, Wittig RM, Mundry R, Zuberbuehler K. (2012) Wild chimpanzees inform ignorant group members of danger. Current Biology, 22:142-146. [pdf] [supplimentry]

Silk JB, Beehner JC, Berman TJ, Crockford C, Engh AL, Moscovice LR, Wittig RM, Seyfarth RM & Cheney DL. (2010). Strong and consistent social bonds enhance the longevity of female baboons. Current Biology. 20:1359-1361. [pdf]

Silk JB, Beehner JC, Berman TJ, Crockford C, Engh AL, Moscovice LR, Wittig RM, Seyfarth RM & Cheney DL. (2010). Female chacma baboons form strong, equitable and enduring social bonds. Behavioral Ecology and Sociobiology. 64:1733-1747. [pdf]

Moscovice LR, Di Fiore A, Crockford C, Kitchen DM, Wittig RM, Seyfarth RM & Cheney DL. 2010. Hedging their bets? Male and female chacma baboons form friendships based on likelihood of paternity. Animal Behaviour 75, 1007-1015. [pdf]

Silk JB, Beehner JC, Berman TJ, Crockford C, Engh AL, Moscovice LR, Wittig RM, Seyfarth RM & Cheney DL. 2009. The benefits of social capital: Close social bonds among female baboons enhance offspring survival. Proceedings of the Royal Society B. 276:3099-3104. [pdf]

Wittig, RM., Crockford C, Lehmann, J, Whitten, PL., Seyfarth, RM. & Cheney, DL. 2008. Focused grooming networks and stress alleviation in wild female baboons. Hormones & Behavior. 54:170-177. doi:10.1016/j.yhbeh.2008.02.009. [pdf]

Crockford C., Wittig, RM., Whitten, PL., Seyfarth, RM. & Cheney, DL. 2008. Social correlates and coping mechanisms of stress in baboons (Papio hamadyras ursinus). Hormones & Behavior. 53:254-265. doi:10.1016/j.yhbeh.2007.10.007 [pdf]

Boesch, C., Crockford C., Herbinger, I., Wittig, R., Moebius, Y. & Normand, E. 2008. Intergroup conflicts among chimpanzees in the Taï National Park: Lethal violence and the female perspective. American Journal of Primatology. 70:519-532. [pdf]

Crockford C., Wittig, R. M., Seyfarth, R. M. & Cheney, D. L. 2007. Baboons eavesdrop to deduce mating opportunities. Animal Behaviour. 73:885-890. doi:10.1016/j.anbehav.2006.10.016 [pdf]

Wittig, R. M., Crockford C., Seyfarth, R. M. & Cheney, D. L. 2007. Vocal alliances in chacma baboons (Papio hamadryas ursinus). Behavioural Ecology and Sociobiology. 61:899-909. doi: 10.1007/s00265-006-0319-5 [pdf]

Wittig, R. M., Crockford C., Wikberg, E., Seyfarth, R. M & Cheney, D. L. 2007. Kin-mediated reconciliation substitutes for direct reconciliation in female baboons. Proceedings of the Royal Society, Series B. 274:1109-1115. doi:10.1163/156853901316924520 [pdf]

Crockford C. & Boesch, C. 2005. Call combinations in wild chimpanzees. Behaviour. 142:397-421. doi:10.1163/1568539054012047 [pdf]

Crockford C., Herbinger, I., Vigilant, L. & Boesch, C. 2004. Wild chimpanzees have group specific calls: a case for vocal learning? Ethology. 110:221-243. doi:10.111/j.1439-0310.2004.00968.x [pdf]

Crockford C. & Boesch, C. 2003. Context specific calls in wild chimpanzees, Pan troglodytes verus: analysis of barks. Animal Behaviour. 66:115-125. doi:10.1006/anbe.2003.2166 [pdf]

Crockford C. & Lesser, R. 1992. Assessing functional communication in aphasia: clinical utility and time demands of three methods. European Journal of Communication Disorders. 29:165-182.