Chang, E. F., Rieger, J. W., Johnson, K., Berger, M. S., Barbaro, N. M. & Knight, R. T. (2010). Categorical speech representation in human superior temporal gyrus. Nature Neuroscience, 13, 1428.
Clark, A. (1991). The socio-ecology of wild chimpanzees vocal behavior in the Kibale Forest, Uganda. PhD thesis. University of Michigan.
Clay, Z., Smith, C. L. & Blumstein, D. T. (2012). Food-associated vocalizations in mammals and birds: What do these calls really mean? Animal Behaviour, 83, 323–330.
Crockford, C. (2005). Vocal communication in West African wild chimpanzees (Pan troglodytes versus): Similarities and differences with humans. PhD thesis, University of Leipzig.
Crockford, C. & Boesch, C. (2003). Context-specific calls in wild chimpanzees, Pan troglodytes verus: Analysis of barks. Animal Behaviour, 66, 115–125.
Crockford, C. & Boesch, C. (2005). Call combinations in wild chimpanzees. Behaviour, 142, 397–421.
Crockford, C., Gruber, T. & Zuberbühler, K. (2018). Chimpanzee quiet hoo variants differ according to context. Royal Society Open Science, 5.
Crockford, C., Herbinger, I., Vigilant, L. & Boesch., C. (2004). Wild chimpanzees produce group-specific calls: A case for vocal learning? Ethology, 110, 221–243.
Crockford, C., Wittig, R. M., Mundry, R. & Zuberbühler, K. (2012). Wild chimpanzees inform ignorant group members of danger. Current Biology, 22, 142–146.
Crockford, C., Wittig, R. M. & Zuberbühler, K. (2014). An intentional vocalization draws others’ attention: A playback experiment with wild chimpanzees. Animal Cognition, 18, 581–591.
Crockford, C., Wittig, R. M. & Zuberbühler, K. (2017). Vocalizing in chimpanzees is influenced by social-cognitive processes. Science Advances, 3(11), p.e1701742.
Eckhardt, N., Polansky, L. & Boesch, C. (2015). Spatial cohesion of adult male chimpanzees (Pan troglodytes verus) in Taï National Park, Côte d’Ivoire. American Journal of Primatology, 77, 125–134.
Fallon, B. L., Neumann, C., Byrne, R. W. & Zuberbühler, K. (2016). Female chimpanzees adjust copulation calls according to reproductive status and level of female competition. Animal Behaviour, 113, 87–92.
Fedurek, P., Donnellan, E. & Slocombe, K. E. (2014). Social and ecological correlates of long-distance pant hoot calls in male chimpanzees. Behavioral Ecology and Sociobiology, 68, 1345–1355. https://doi.org/10.1007/s00265-014–1745–4
Fedurek, P., Schel, A. M. & Slocombe, K. E. (2013). The acoustic structure of chimpanzee pant–hooting facilitates chorusing. Behavioral Ecology and Sociobiology, 67, 1781–1789.
Fedurek, P. & Slocombe, K. E. (2013). The social function of food-associated calls in male chimpanzees. American Journal of Primatology, 75, 726–739.
Fedurek, P., Slocombe, K. E., Hartel, J. A. & Zuberbühler, K. (2015). Chimpanzee lip-smacking facilitates cooperative behaviour. Scientific Reports, 5, 13460.
Fischer, J. (1998). Barbary macaques categorize shrill barks into two call types. Animal Behaviour, 55, 799–807.
Fischer, J., Metz, M., Cheney, D. L. & Seyfarth, R. M. (2001). Baboon responses to graded bark variants. Animal Behaviour, 61, 925–931.
Fischer, J. & Price, T. (2017). Meaning, intention, and inference in primate vocal communication. Neuroscience and Biobehavioral Reviews, 82, 22–31.
Goodall, J. (1986). The Chimpanzees of Gombe: Patterns of Behavior. Cambridge, MA: The Belknap Press of Harvard University Press.
Grawunder, S., Crockford, C., Clay, Z., Kalan, A. K., Stevens, J. M., Stoessel, A., et al. (2018). Higher fundamental frequency in bonobos is explained by larynx morphology. Current Biology, 28, R1188–R1189.
Gros-Louis, J. (2004). The function of food-associated calls in white-faced capuchin monkeys, Cebus capucinus, from the perspective of the signaller. Animal Behaviour, 67, 431–440.
Gruber, T. & Zuberbühler, K. (2013). Vocal recruitment for joint travel in wild chimpanzees. PLoS ONE, 8(9), 1–9.
Hagiwara, R. (1997). Dialect variation and formant frequency: The American English vowels revisited. Journal of the Acoustical Society of America, 102, 655–658.
Hammerschmidt, K. & Fischer, J. (1998). The vocal repertoire of Barbary macaques: A quantitative analysis of a graded signal system. Ethology, 104, 203–216.
Heinrich, B. & Marzluff, J. M. (1991). Do common ravens yell because they want to attract others? Behavioral Ecology and Sociobiology, 28, 13–21.
Herbinger, I., Papworth, S., Boesch, C. & Zuberbühler, K. (2009). Vocal, gestural and locomotor responses of wild chimpanzees to familiar and unfamiliar intruders: A playback study. Animal Behaviour, 78, 1389–1396.
Hopkins, W. D., Taglialatela, J. P. & Leavens, D. A. (2007). Chimpanzees differentially produce novel vocalizations to capture the attention of a human. Animal Behaviour, 73, 281–286.
Kalan, A. K., Mundry, R. & Boesch, C. (2015). Wild chimpanzees modify food call structure with respect to tree size for a particular fruit species. Animal Behaviour, 101, 1–9.
Laporte, M. N. & Zuberbühler, K. (2010). Vocal greeting behaviour in wild chimpanzee females. Animal Behaviour, 80, 467–473.
Luef, E. M. & Pika, S. (2017). Reciprocal greeting in chimpanzees (Pan troglodytes) at the Ngogo community. Journal of Neurolinguistics, 43, 263–273.
Marler, P. (1976). Social organization, communication and graded signals: The chimpanzee and the gorilla. In Bateson, P. P. G. & Hinde, R. A. (eds.), Growing Points in Ethology. Cambridge: Cambridge University Press.
Mitani, J. C. (1996). Comparative studies of African ape vocal behavior. In McGrew, W. C., Marchant, L. F. & Nishida, T. (eds.), Great Ape Societies (pp. 241–256). New York: Cambridge University Press.
Mitani, J. C., Gros-Louis, J. & Macedonia, J. M. (1996). Selection for acoustic individuality within the vocal repertoire of wild chimpanzees. International Journal of Primatology, 17, 569–583.
Mitani, J. C., Hasegawa, T., Gros-Louis, J., Marler, P. & Byrne, R. W. (1992). Dialects in wild chimpanzees? American Journal of Primatology, 27, 233–243.
Mitani, J. C., Hunley, K. L. & Murdoch, M. E. (1999). Geographic variation in the calls of wild chimpanzees: A reassessment. American Journal of Primatology, 47, 133–151.
Mitani, J. C. & Watts, D. P. (1999). Demographic influences on the hunting behaviour of chimpanzees. American Journal of Physical Anthropology, 109, 439–454.
Nakamura, M., Hosaka, K., Itoh, N. & Zamma, K. (2015). Mahale Chimpanzees: 50 Years of Research. Cambridge: Cambridge University Press.
Nishida, T., Mitani, J. C. & Watts, D. P. (2004). Variable grooming behaviours in wild chimpanzees. Folia Primatologica, 75, 31–36.
Notman, H. & Rendall, D. (2005). Contextual variation in chimpanzee pant hoots and its implications for referential communication. Animal Behaviour, 70, 177–190.
Pika, S. (2014). Chimpanzee grooming gestures and sounds: What might they tell us about how language evolved? In Dor, D., Knight, C. & Lewis, J. (eds.), The Social Origins of Language: Early Society, Communication and Polymodality (pp. 129–140). Oxford: Oxford University Press.
Price, T. & Fischer, J. (2014). Meaning attribution in the West African green monkey: Influence of call type and context. Animal Cognition, 17, 277–286.
Rendall, D., Seyfarth, R. M., Cheney, D. L. & Owren, M. J. (1999). The meaning and function of grunt variants in baboons. Animal Behaviour, 57, 583–592.
Schamberg, I., Cheney, D. L., Clay, Z., Hohmann, G. & Seyfarth, R. M. (2017). Bonobos use call combinations to facilitate inter-party travel recruitment. Behavioral Ecology and Sociobiology, 71, 75–84.
Schamberg, I., Wittig, R. M. & Crockford, C. (2018). Call type signals caller goal: A new take on ultimate and proximate influences in vocal production. Biological Reviews, 93, 2071–2082.
Schel, A. M., Machanda, Z., Townsend, S. W., Zuberbühler, K. & Slocombe, K. E. (2013). Chimpanzee food calls are directed at specific individuals. Animal Behaviour, 86, 955–965. https://doi.org/10.1016/j.anbehav.2013.08.013
Seyfarth, R. M., Cheney, D. L. & Marler, P. (1980). Monkey responses to three different alarm calls: evidence of predator classification and semantic communication. Science, 210, 801–803.
Silk, J. B., Seyfarth, R. M. & Cheney, D. L. (2016). Strategic use of affiliative vocalizations by wild female baboons. PLoS ONE, 11, 1–11.
Slocombe, K. E. & Zuberbühler, K. (2005a). Functionally referential communication in a chimpanzee. Current Biology, 15, 1779–1784.
Slocombe, K. E. & Zuberbühler, K. (2005b). Agonistic screams in wild chimpanzees (Pan troglodytes schweinfurthii) vary as a function of social role. Journal of Comparative Psychology, 119,67.
Townsend, S. W., Deschner, T. & Zuberbühler, K. (2008). Female chimpanzees use copulation calls flexibly to prevent social competition. PLoS ONE, 3(6), e2431.
Townsend, S. & Zuberbühler, K. (2009). Audience effects in chimpanzee copulation calls. Communicative and Integrative Biology, 2, 282–284.
Uhlenbroek, C. (1996). The structure and function of the long-distance calls given by male chimpanzees in Gombe National Park. PhD thesis, University of Bristol.
van Hooff, J. A. R. A. M. (1973). A structure analysis of the social behaviour of a semi-captive group of chimpanzees. In von Cranach, M. & Vine, I. (eds.), Social Communication and Movement (pp. 75–162). London: Academic Press.
van Lawick-Goodall, J. (1968). A preliminary report on expressive movements and communication in the Gombe Stream chimpanzees. In Jay, P. (ed.), Primates: Studies in Adaptation and Variability (pp. 313–374). New York: Holt.
de Waal, F. B. (1988). The communicative repertoire of captive bonobos (Pan paniscus), compared to that of chimpanzees. Behaviour, 106, 183–251.
Wittig, R. M. & Crockford, C. (2018). Chimpanzees: Investigating cognition in the wild. In Bueno-Guerra, N. & Amici, F. (eds.), Field and Laboratory Methods in Animal Cognition (pp. 115–145). Cambridge: Cambridge University Press.
Wittig, R. M., Crockford., C., Langergraber, K. E. & Zuberbühler, K. (2014). Triadic social interactions operate across time: A field experiment with wild chimpanzees. Proceedings of the Royal Society B, 281(1779).