The data collected at Suaq has resulted in the following scientific publications:

2021

Fröhlich, M., Bartolotta, N., Fryns, C., Wagner, C., Momon, L., Jaffrezic, M., Mitra Setia, T., van Noordwijk, M.A., van Schaik, C.P. (2021). Multicomponent and multisensory communicative acts in orang-utans may serve different functions. Commun Biol 4, 917 (2021)

Fröhlich, M., Bartolotta, N., , Fryns, C., Wagner, C., Momon, L., Jaffrezic, M., Mitra Setia, T., Schuppli, C., van Noordwijk, M., van Schaik, C.P. (preprint, 2021). Wild-captive contrasts in non-vocal communicative repertoires and functional specificity in orang-utans bioRxiv 2021.01.19.426493

Ehmann, B., van Schaik, CP., Ashbury, AM., Mörchen, J., Musdarlia, H., Utami Atmoko, S., van Noordwijk, M. A., Schuppli, C. (2021). Immature wild orangutans acquire relevant ecological knowledge through sex-specific attentional biases during social learning. PLoS Biol 19(5)

Kunz, J.A., Duvot, G.J., van Noordwijk, M.A., Willems, E. P., Townsend, M., Mardianah, N., Utami-Atmoko, S., Vogel, E.R., Nugraha, R.T.P., Heistermann, M., Agil, M., Weingrill, T., van Schaik, C.P. (2021). The cost of associating with males for Bornean and Sumatran female orangutans: a hidden form of sexual conflict? Behav Ecol Sociobiol 75, 6

Schuppli, C., Van Cauwenberghe, A., Mitra Setia, T., & Haun, D. (2021). The ontogeny of exploratory object manipulation behaviour in wild orangutans. Evolutionary Human Sciences, 3, E39

 

2020

Frohlich, M., Kunz, J., Fryns, C., Falkner, S., Rukmana, E., Schuppli, M., Kneif, U., Utami-Atmoko S. A., Schuppli, C., van Noordwijk, M.  (2020). Social interactions and interaction partners in infant orang-utans of two wild populations. Animal Behaviour, 166, 183-191

Schuppli, C., van Noordwijk, M., Atmoko, SU., van Schaik, CP. (2020). Early sociability fosters later exploratory tendency in wild immature orangutans. Sci Adv. 2020 Jan 8;6(2)

 

2019

Schuppli, C., van Schaik, CP. (2019). Social learning among wild orangutans: is it affective? In: Dukes D, Clément F (eds) Foundations of affective social learning. Cambridge University Press, Cambridge, pp 25–40

Fröhlich, M., Lee, K., Mitra Setia, T., Schuppli, C., van Schaik, CP. (2019). The loud scratch: a newly identified gesture of Sumatran orangutan mothers in the wild. Biol Lett. 2019 Jul 26;15(7)

 

2018

van Noordwijk, M. A., Utami-Atmoko, S. A., Knott, C. D., Kuze, N., Morrogh-Bernard, H. C., Oram, F., Schuppli C., van Schaik, CP., Willems, E. P. (2018). The slow ape: High infant survival and long interbirth intervals in wild orangutans. Journal of Human Evolution, 125, 38-49

 

2017

Schuppli, C., Forss, S., Meulman, E., Utami Atmoko, S. A., van Noordwijk, M. A., van Schaik, CP.  (2017). The effects of sociability on exploratory tendency and innovation repertoires in wild Sumatran and Bornean orangutans. Scientific Reports 7, 15464 (2017)

 

2016

Schuppli, C., Forss, S. I., Meulman, E. J., Zweifel, N., Lee, K. C., Rukmana, E., Vogel, E.R., van Noordwijk, M.A., van Schaik, C. P. (2016). Development of foraging skills in two orangutan populations: needing to learn or needing to grow? Frontiers in Zoology, 13(1), 43.

Schuppli, C., Meulman, E., Forss, S. I. F., Aprilinayati, F., Van Noordwijk, M. A., & Van Schaik, C. P. (2016). Observational social learning and socially induced practice of routine skills in wild immature orang-utans. Animal Behaviour, 119, 87-98.

van Schaik, C. P., Burkart, J., Damerius, L., Forss, S. I. F., Koops, K., van Noordwijk, M. A., & Schuppli, C. (2016). The reluctant innovator: orangutans and the phylogeny of creativity. Philosophical transactions of the Royal Society of London. Series B, Biological sciences, 371(1690). doi:10.1098/rstb.2015.0183

 

2015

Forss, S. I. F., Schuppli, C., Haiden, D., Zweifel, N., & Van Schaik, C. P. (2015). Contrasting Responses to Novelty by Wild and Captive Orangutans. International Journal of Primatology, 77(10), 1109-1121. doi:10.1002/ajp.22445

 

2013

Dunkel, L. P., Arora, N., van Noordwijk, M. A., Utami Atmoko, S. A., Prathama Putra, A., Krützen, M., & van Schaik, C. P. (2013). Variation in developmental arrest among male orangutans: a comparison between a Sumatran and a Bornean population. Frontiers in Zoology, 10, 12.

Meulman, E. J. M., & van Schaik, C. P. (2013). Orangutan tool use and the evolution of technology. Tool Use in Animals: Cognition and Ecology, 176-202.

 

2012

Meulman, E. J., Sanz, C. M., Visalberghi, E., & van Schaik, C. P. (2012). The role of terrestriality in promoting primate technology. Evol. Anthropol., 21(2), 58-68.

 

2011

Barrickman, N. L., Bastian, M. L., Isler, K., & van Schaik, C. P. (2008). Life history costs and benefits of encephalization: a comparative test using data from long-term studies of primates in the wild. Journal of Human Evolution, 54(5), 568-590. doi:10.1016/j.jhevol.2007.08.012

Krützen, M., Willems, E. P., & van Schaik, C. P. (2011). Culture and geographic variation in orangutan behavior. Current Biology, 21, 1808-1812.

 

2009

Singleton, I., Knott, C. D., Morrogh-Bernard, H. C., Wich, S. A., & van Schaik, C. P. (2009). Ranging behavior of orangutan females and social organization. In S. A. Wich, S. S. Utami Atmoko, T. Mitra Setia, & C. P. van Schaik (Eds.), Orangutans: geographic variation in behavioral ecology and conservation. [Oxford Biology.] (pp. 205-213).

Van Noordwijk, M. A., Sauren, S. E. B., Nuzuar, Abulani, A., Morrogh-Bernard, H., Utami, S. A., & van Schaik, C. P. (2009). Development of independence: Sumatran and Bornean orangutans compared. In S. A. Wich, T. Mitra Setia, S. A. Utami Atmoko, & C. P. Van Schaik (Eds.), Orangutans Compared: Geographic Variation in Behavioral Ecology and Conservation (pp. 189-203). Oxford: Oxford University Press.

van Schaik, C. P. (2009). Geographic variation in the behavior of wild great apes: is it really cultural? In K. N. Laland & B. G. Galef (Eds.), The Question of Animal Culture (pp. 70-98). Cambridge, MA: Harvard University Press.

van Schaik, C. P., Ancrenaz, M., Djojoasmoro, R., Knott, C. D., Morrogh-Bernard, H. C., Nuzuar, . . . van Noordwijk, M. A. (2009). Orangutan cultures revisited.

van Schaik, C. P., van Noordwijk, M. A., & Vogel, E. R. (2009). Ecological sex differences in wild orangutans. In S. A. Wich, T. Mitra Setia, S. A. Utami Atmoko, & C. P. Van Schaik (Eds.), Orangutans Compared: Geographic Variation in Behavioral Ecology and Conservation (pp. 255-268). Oxford: Oxford University Press.

van Schaik, C. P., van Noordwijk, M. A., & Vogel, E. R. (2009). Ecological sex differences in wild orangutans.

van Schaik, C. P., Marshall, A. J., & Wich, S. A. (2009). Geographic variation in orangutan behavior and biology: its functional interpretation and its mechanistic basis.

Wich, S. A., de Vries, H., Ancrenaz, M., Perkins, L., Shumaker, R. W., Suzuki, A., & van Schaik, C. P. (2009). Orangutan life history variation: Oxford University Press.

 

2008

Barrickman, N. L., Bastian, M. L., Isler, K., & van Schaik, C. P. (2008). Life history costs and benefits of encephalization: a comparative test using data from long-term studies of primates in the wild. Journal of Human Evolution, 54(5), 568-590. doi:10.1016/j.jhevol.2007.08.012

 

2005

van Noordwijk, M. A., & van Schaik, C. P. (2005). Development of ecological competence in Sumatran orangutans. American Journal of Physical Anthropology, 127, 79-94.

 

2004

van Schaik, C., & van Schaik, C. (2004). Among orangutans: red apes and the rise of human culture.

van Schaik, C. P. (2004). Among Orangutans: Red Apes and the Rise of Human Culture. Cambridge, MA: Harvard University Press (Belknap.

Wich, S. A., Utami-Atmoko, S. S., Mitra Setia, T., Rijksen, H. D., Schurmann, C., van Hooff, J. A. R. A.     M., & van Schaik, C. P. (2004). Life history of wild Sumatran orangutans (Pongo abelii).     Journal of Human Evolution, 47, 385-398.

 

2003

van Schaik, C. P. (2003). Orangutan cultures and the comparative study of culture. American Journal of Physical Anthropology, 214-214.  Retrieved from <Go to ISI>://WOS:000181670000617

Van Schaik, C. P. (2003). Local traditions in oragutans and chimpanzees: social learning and social tolerance.

van Schaik, C. P., Ancrenaz, M., Borgen, G., Galdikas, B., Knott, C. D., Singleton, I., . . . Merrill, M. (2003). Orangutan cultures and the evolution of material culture. Science, 299(5603), 102-105. doi:10.1126/science.1078004

van Schaik, C. P., Fox, E. A., & Fechtman, L. T. (2003). Individual variation in the rate of use of tree-hole tools among wild orang-utans: implications for hominin evolution. Journal of Human Evolution, 44(1), 11-23. doi:10.1016/s0047-2484(02)00164-1

 

2002

Singleton, I., & van Schaik, C. P. (2002). The social organisation of a population of Sumatran orang-utans. Folia Primatologica, 73(1), 1-20. doi:10.1159/000060415

 

2001

Singleton, I., & van Schaik, C. P. (2001). Orangutan home range size and its determinants in a Sumatran swamp forest. International Journal of Primatology, 22(6), 877-911. doi:10.1023/a:1012033919441

van Schaik, C. P., Monk, K. A., & Robertson, J. M. Y. (2001). Dramatic decline in orang-utan numbers in the Leuser Ecosystem, northern Sumatra. Oryx, 35, 14-25.

Van Schaik, C. P., & Knott, C. D. (2001). Geographic variation in tool use on Neesia fruits in orangutans. American Journal of Physical Anthropology, 114(4), 331-342. doi:10.1002/ajpa.1045

 

1999

van Schaik, C. P. (1999). The socioecology of fission-fusion sociality in orangutans. Primates, 40, 73-90.

van Schaik, C. P., Deaner, R. O., & Merrill, M. Y. (1999). The conditions for tool use in primates: implications for the evolution of material culture. J. Hum. Evol., 36(6), 719-741.

 

1995

van Schaik, C. P., Azwar, & Priatna, D. (1995). Population estimates and habitat preferences of orangutans based on line transects of nests. In R. D. Nadler, B. F. M. Galdikas, L. K. Sheeran, & N. Rosen (Eds.), The Neglected Ape (pp. 129-147). New York: Plenum Press.

 

1996

van Schaik, C. P. (1996). Does the orangutan have a future? Population Status in Gunung Leuser National Park. In C. P. van Schaik & J. Supriatna (Eds.), Leuser: A Sumatran Sanctuary (pp. 249-258). Depok, Indonesia: YABSHI.

van Schaik, C. P., Fox, E. A., & Sitompul, A. F. (1996). Manufacture and use of tools in wild Sumatran orangutans. Naturw., 83, 186-188.

 

1991

van Schaik, C. P., & Azwar. (1991). Orangutan densities in differing forest types in the Gunung Leuser National Park (Sumatra), as determined by nest counts. Retrieved from