International Journal of Primatology

, Volume 32, Issue 3, pp 669–690 | Cite as

Comparative Feeding Ecology of Two Communities of Chimpanzees (Pan troglodytes) in Kibale National Park, Uganda

  • Kevin B. Potts
  • David P. Watts
  • Richard W. Wrangham
Article

Abstract

Several recent studies have documented considerable intraspecific and intrapopulation ecological variation in primates. However, we generally lack an understanding of how such variability may be linked to concomitant demographic variation among groups or populations of the same species, particularly in regard to large-bodied and wide-ranging species with high ecological flexibility, such as chimpanzees (Pan troglodytes). We compared the feeding ecology of chimpanzees inhabiting 2 sites in Kibale National Park, Uganda that differ 3-fold in chimpanzee density and support notably different plant communities. Chimpanzees at Ngogo, a site with the largest known chimpanzee community and unusually high chimpanzee density, spent a significantly lower percentage of time resting (and pregnant and lactating females spent more time feeding), incorporated higher percentages of ripe fruit in their diet, had lower dietary diversity values, and had shorter and less variable average patch residency times than did their counterparts at the nearby Kanyawara site, which supports a relatively low density of chimpanzees. In addition, feeding party size was significantly and positively related to feeding patch size at Ngogo, but not at Kanyawara. Together these findings aid in explaining the noted disparity in chimpanzee community size and density between Ngogo and Kanyawara by suggesting that the diet of Ngogo chimpanzees is of higher overall quality than that of Kanyawara chimpanzees. They also highlight the potentially profound influence of even small-scale habitat heterogeneity on the ecology of primates. Researchers must take such influences into account when attempting to draw conclusions about species- or population-level characteristics.

Keywords

Chimpanzee Feeding ecology Foraging efficiency Population density 

References

  1. Altmann, J. (1980). Baboon mothers and infants. Chicago: University of Chicago Press.Google Scholar
  2. Badrian, N., Badrian, A., & Susman, R. L. (1981). Preliminary observations on the feeding behavior of Pan paniscus in the Lomako Forest of central Zaire. Primates, 22, 173–181.Google Scholar
  3. Basabose, K. (2002). Diet composition of chimpanzees inhabiting the montane forest of Kahuzi, Democratic Republic of Congo. American Journal of Primatology, 58, 1–21.PubMedGoogle Scholar
  4. Bercovitch, F. B. (1987). Female weight and reproductive condition in a population of olive baboons (Papio anubis). American Journal of Primatology, 12, 189–195.Google Scholar
  5. Bowers, M. A., Jefferson, J. L., & Kuebler, M. G. (1993). Variation in giving-up densities of foraging chipmunks (Tamias striatus) and squirrels (Sciurus carolinensis). Oikos, 66, 229–236.Google Scholar
  6. Brown, J. S. (1988). Patch use as an indicator of habitat preference, predation risk, and competition. Behavioral Ecology and Sociobiology, 22, 37–47.Google Scholar
  7. Brown, J. S. (1989). Desert rodent community structure: a test of four mechanisms of coexistence. Ecological Monographs, 59, 1–20.Google Scholar
  8. Butynski, T. M. (1988). Guenon birth seasons and correlates with rainfall and food. In A. Gautier-Hion, F. Bourliére, J.-P. Gautier, & Kingdon (Eds.), A primate radiation: Evolutionary biology of the African guenons (pp. 284–322). Cambridge: Cambridge University Press.Google Scholar
  9. Butynski, T. M. (1990). Comparative ecology of blue monkeys (Cercopithecus mitis) in high- and low-density subpopulations. Ecological Monographs, 60, 1–26.Google Scholar
  10. Chapman, C. A. (1988). Patch use and patch depletion by the spider and howling monkeys of Santa Rosa National Park, Costa Rica. Behaviour, 105, 99–116.Google Scholar
  11. Chapman, C. A., & Chapman, L. J. (1999). Implications of small-scale variation in ecological conditions for the diet and density of red colobus monkeys. Primates, 40, 215–231.Google Scholar
  12. Chapman, C. A., & Lambert, J. A. (2000). Habitat alteration and the conservation of African primates: case study of Kibale National Park, Uganda. American Journal of Primatology, 50, 169–185.PubMedGoogle Scholar
  13. Chapman, C. A., White, F. J., & Wrangham, R. W. (1993). Defining subgroup size in fission-fusion societies. Folia Primatologica, 61, 31–34.Google Scholar
  14. Chapman, C. A., White, F. J., & Wrangham, R. W. (1994). Party size in chimpanzees and bonobos: A reevaluation of theory based on two similarly forested sites. In R. W. Wrangham, W. C. McGrew, F. B. M. de Waal, & P. G. Heltne (Eds.), Chimpanzee cultures (pp. 41–58). Cambridge, MA: Harvard University Press.Google Scholar
  15. Chapman, C. A., Wrangham, R. W., & Chapman, L. J. (1995). Ecological constraints on group size: an analysis of spider monkey and chimpanzee subgroups. Behavioral Ecology and Sociobiology, 36, 59–70.Google Scholar
  16. Chapman, C. A., Chapman, L. J., Basuta, G. I., & Ben-David, K. (1997). Spatial and temporal variability in the structure of a tropical forest. African Journal of Ecology, 35, 287–302.Google Scholar
  17. Charnov, E. L. (1976). Optimal foraging: the marginal value theorem. Theoretical Population Biology, 9, 129–136.PubMedGoogle Scholar
  18. Conklin, N. L., & Wrangham, R. W. (1994). The value of figs to a hindgut fermenting frugivore: a nutritional analysis. Biochemical Systematics and Ecology, 22, 137–151.Google Scholar
  19. Conklin-Brittain, N. L., Wrangham, R. W., & Hunt, K. D. (1998). Dietary response of chimpanzees and cercopithecines to seasonal variation in fruit abundance II: macronutrients. International Journal of Primatology, 19, 971–998.Google Scholar
  20. Di Fiore, A. (2004). Diet and feeding ecology of woolly monkeys in a western Amazonian forest. International Journal of Primatology, 25, 767–801.Google Scholar
  21. Dittus, W. (1979). The evolution of behaviours regulating population density and age-specific sex ratios in a primate population. Behaviour, 69, 265–301.Google Scholar
  22. Dunbar, R. I. M. (1992). Time: a hidden constraint on the behavioural ecology of baboons. Behavioral Ecology and Sociobiology, 31, 35–49.Google Scholar
  23. Dunbar, R. I. M., & Dunbar, P. (1988). Maternal time budgets of gelada baboons. Animal Behaviour, 36, 970–980.Google Scholar
  24. Emery Thompson, M., Kahlenberg, S. M., Gilby, I. C., & Wrangham, R. W. (2007). Core area quality is associated with variance in reproductive success among female chimpanzees at Kibale National Park. Animal Behaviour, 73, 501–512.Google Scholar
  25. Felton, A. M., Felton, A., Wood, J. T., Foley, W. J., Raubenheimer, D., Wallis, I. R., et al. (2009a). Nutritional ecology of Ateles chamek in lowland Bolivia: how macronutrient balancing influences food choices. International Journal of Primatology, 30, 675–696.Google Scholar
  26. Felton, A. M., Felton, A., Lindenmayer, D. B., & Foley, W. J. (2009b). Nutritional goals of wild primates. Functional Ecology, 23, 70–78.Google Scholar
  27. Galdikas, B. M. F. (1988). Orangutan diet, range, and activity at Tanjung Puting, Central Borneo. International Journal of Primatology, 9, 1–35.Google Scholar
  28. Ganas, J., Robbins, M. M., Nkurunungi, J. B., Kaplin, B. A., & McNeilage, A. (2004). Dietary variability of mountain gorillas in Bwindi Impenetrable National Park, Uganda. International Journal of Primatology, 25, 1043–1072.Google Scholar
  29. Ghiglieri, M. P. (1984). The chimpanzees of the Kibale Forest: A field study of ecology and social structure. New York: Columbia University Press.Google Scholar
  30. Gittleman, J. L., & Thompson, S. D. (1988). Energy allocation in mammalian reproduction. American Zoologist, 28, 863–875.Google Scholar
  31. Glenn, M. E., & Cords, M. (Eds.). (2002). The guenons: Diversity and adaptation in African monkeys. New York: Kluwer Academic/Plenum Press.Google Scholar
  32. Goodall, J. (1986). The chimpanzees of Gombe: Patterns of behavior. Cambridge, MA: Harvard University Press.Google Scholar
  33. Grassi, C. (2006). Variability in habitat, diet, and social structure of Hapalemur griseus in Ranomafana National Park, Madagascar. American Journal of Physical Anthropology, 131, 50–63.PubMedGoogle Scholar
  34. Hancock, P. A., & Milner-Gulland, E. G. (2006). Optimal movement strategies for social foragers in unpredictable environments. Ecology, 87, 2094–2102.PubMedGoogle Scholar
  35. Hanya, G. (2004). Seasonal variations in the activity budget of Japanese macaques in the coniferous forest of Yakushima: effects of food and temperature. American Journal of Primatology, 63, 165–177.PubMedGoogle Scholar
  36. Harris, T. R., & Chapman, C. A. (2007). Variation in diet and ranging of black and white colobus monkeys in Kibale National Park, Uganda. Primates, 48, 208–221.PubMedGoogle Scholar
  37. Hill, M. O. (1973). Diversity and evenness: a unifying notation and its consequences. Ecology, 54, 427–432.Google Scholar
  38. Hohmann, G., Fowler, A., Sommer, V., & Ortmann, S. (2006). Frugivory and gregariousness of Salonga bonobos and Gashaka chimpanzees. In G. Hohmann, M. Robbins, & C. Boesch (Eds.), Feeding ecology in apes and other primates (pp. 123–160). Cambridge: Cambridge University Press.Google Scholar
  39. Hohmann, G., Potts, K., N’Guessan, A., Fowler, A., Sommer, V., Mundry, R., et al. (2010). Plant foods consumed by Pan: exploring the variation of nutritional quality across Africa. American Journal of Physical Anthropology, 141, 476–485.PubMedGoogle Scholar
  40. Houle, A., Vickery, W. L., & Chapman, C. A. (2006). Testing mechanisms of coexistence among two species of frugivorous primates. Journal of Animal Ecology, 75, 1034–1044.PubMedGoogle Scholar
  41. Isabirye-Basuta, G. (1987). Feeding ecology of chimpanzees in the Kibale Forest, Uganda. In P. Heltne & L. Marquant (Eds.), Understanding chimpanzees. Cambridge, MA: Harvard University Press.Google Scholar
  42. Isabirye-Basuta, G. (1988). Food competition among individuals in a free-ranging chimpanzee community in Kibale Forest. Behaviour, 105, 135–147.Google Scholar
  43. Kano, T., & Mulavwa, M. (1984). Feeding ecology of the pygmy chimpanzees (Pan paniscus) of Wamba. In R. L. Susman (Ed.), The pygmy chimpanzee (pp. 233–274). New York: Plenum Press.Google Scholar
  44. Klein, L. L., & Klein, D. B. (1977). Feeding behaviour of the Colombian spider monkey. In T. Clutton-Brock (Ed.), Primate ecology (pp. 153–181). London: Academic Press.Google Scholar
  45. Koenig, A., Borries, C., Chalise, M. K., & Winkler, P. (1997). Ecology, nutrition, and timing of reproductive events in an Asian primate, the Hanuman langur (Presbytis entellus). Journal of Zoology, London, 243, 215–235.Google Scholar
  46. Kool, K. M. (1993). The diet and feeding behavior of the silver leaf monkey (Trachypithecus auratus sondaicus) in Indonesia. International Journal of Primatology, 14, 667–700.Google Scholar
  47. Korstjens, A. H., & Dunbar, R. I. M. (2007). Time constraints limit group sizes and distribution in red and black-and-white colobus. International Journal of Primatology, 28, 551–575.Google Scholar
  48. Korstjens, A. H., Verhoeck, I. L., & Dunbar, R. I. M. (2006). Time as a constraint on group size in spider monkeys. Behavioral Ecology and Sociobiology, 60, 683–694.Google Scholar
  49. Lee, P. C. (1987). Nutrition, fertility, and maternal investment in primates. Journal of Zoology, 213, 409–422.Google Scholar
  50. Leighton, M. (1993). Modeling dietary selectivity of Bornean orangutans: evidence for integration of multiple criteria. International Journal of Primatology, 14, 257–313.Google Scholar
  51. Lwanga, J. S., Butynski, T. M., & Struhsaker, T. T. (2000). Tree population dynamics in Kibale National Park, Uganda 1975–1998. African Journal of Ecology, 38, 238–247.Google Scholar
  52. MacArthur, R. H., & Pianka, E. R. (1966). On optimal use of apatchy environment. The American Naturalist, 100, 603–609.Google Scholar
  53. MacArthur, R. H., & Levins, R. (1967). The limiting similarity, convergence, and divergence of coexisting species. The American Naturalist, 101, 377–385.Google Scholar
  54. Masi, S. (2007). Seasonal influence on foraging strategies, activity and energy budgets of western lowland gorillas (Gorilla gorilla gorilla) in Bai Hokou, Central African Republic. Ph.D. thesis, Universitá di Roma, La Sapienza.Google Scholar
  55. McConkey, K. R., Ario, A., Aldy, F., & Chivers, D. J. (2003). Influence of forest seasonality on gibbon food choice in the rain forests of Barito Ulu, Central Kalimantan. International Journal of Primatology, 24, 19–32.Google Scholar
  56. McNair, J. N. (1982). Optimal giving-up times and the marginal value theorem. The American Naturalist, 119, 511–529.Google Scholar
  57. Mitani, J. C., & Watts, D. P. (1999). Demographic influences on the hunting behavior of chimpanzees. American Journal of Physical Anthropology, 109, 439–454.PubMedGoogle Scholar
  58. Mitani, J. C., & Watts, D. P. (2005). Correlates of territorial boundary patrol behaviour in wild chimpanzees. Animal Behaviour, 70, 1079–1086.Google Scholar
  59. Mitani, J. C., Watts, D. P., & Lwanga, J. S. (2002). Ecological and social correlates of chimpanzee party size and composition. In C. Boesch, G. Hohmann, & L. Marchant (Eds.), Behavioural diversity in chimpanzees and bonobos (pp. 102–111). Cambridge: Cambridge University Press.Google Scholar
  60. Morgan, D., & Sanz, C. (2006). Chimpanzee feeding ecology and comparisons with sympatric gorillas in the Goualougo Triangle, Republic of Congo. In G. Hohmann, M. Robbins, & C. Boesch (Eds.), Feeding ecology in apes and other primates (pp. 97–122). Cambridge: Cambridge University Press.Google Scholar
  61. Muller, M. N. (2002). Agonistic relations among Kanyawara chimpanzees. In C. Boesch, G. Hohmann, & L. Marchant (Eds.), Behavioural diversity in chimpanzees and bonobos. Cambridge: Cambridge University Press.Google Scholar
  62. Muller, M. N., Kahlenberg, S. M., Emery Thompson, M., & Wrangham, R. W. (2007). Male coercion and the costs of promiscuous mating for female chimpanzees. Proceedings of the Royal Society of London Series B: Biological Sciences, 274, 1009–1014.PubMedGoogle Scholar
  63. Murray, C. M., Eberly, L. E., & Pusey, A. E. (2006). Foraging strategies as a function of season and rank among wild female chimpanzees (Pan troglodytes). Behavioral Ecology, 17, 1020–1028.Google Scholar
  64. Muruthi, P., Altmann, J., & Altmann, S. (1991). Resource base, parity, and reproductive condition affect females’ feeding time and nutrient intake within and between groups of a baboon population. Oecologia, 87, 467–472.Google Scholar
  65. Newton-Fisher, N. (1999). The diet of chimpanzees in the Budongo Forest Reserve, Uganda. African Journal of Ecology, 37, 344–354.Google Scholar
  66. Nishida, T., & Uehara, S. (1983). Natural diet of chimpanzees (Pan troglodytes schweinfurthii): long-term record from Mahale Mountains, Tanzania. African Study Monographs, 3, 109–130.Google Scholar
  67. Oftedal, O. T. (1991). The nutritional consequences of foraging in primates: the relationship of nutrient intakes to nutrient requirements. Philosophical Transactions of the Royal Society of London Series B: Biological Sciences, 334, 161–170.PubMedGoogle Scholar
  68. Pielou, E. C. (1974). Population and community ecology: Principles and methods. New York: Gordon and Breach.Google Scholar
  69. Potts, K. B. (2008). Habitat heterogeneity on multiple spatial scales in Kibale National Park, Uganda: implications for chimpanzee population ecology and grouping patterns. Ph.D. dissertation. Yale University, New Haven, CT.Google Scholar
  70. Potts, K. B., Chapman, C. A., & Lwanga, J. S. (2009). Floristic heterogeneity between forested sites in Kibale National Park, Uganda: insights into the fine-scale determinants of density in a large-bodied frugivorous primate. Journal of Animal Ecology, 78, 1269–1277.PubMedGoogle Scholar
  71. Poulsen, J. R., Clark, C. J., & Smith, T. B. (2001). Seasonal variation in the feeding ecology of the grey-cheeked mangabey (Lophocebus albigena) in Cameroon. American Journal of Primatology, 54, 901–105.Google Scholar
  72. Pyke, G., Pulliam, H. R., & Charnov, E. (1977). Optimal foraging: a selective review of theory and tests. Quarterly Review of Biology, 52, 137–154.Google Scholar
  73. Raubenheimer, D., Simpson, S. J., & Mayntz, D. (2009). Nutrition, ecology, and nutritional ecology: towards an integrated framework. Functional Ecology, 23, 4–16.Google Scholar
  74. Rodman, P. S. (1977). Feeding behavior of orangutans in the Kutai Reserve, East Kalimantan. In T. Clutton-Brock (Ed.), Primate ecology. London: Academic Press.Google Scholar
  75. Rogers, M. E., Maisels, F., Williamson, E. A., Fernandez, M., & Tutin, C. E. G. (1990). Gorilla diet in the Lopé Reserve, Gabon: a nutritional analysis. Oecologia, 84, 326–339.Google Scholar
  76. Ross, C. (1998). Primate life histories. Evolutionary Anthropology, 6, 54–63.Google Scholar
  77. Schoener, T. W. (1971). Theory of feeding strategies. Annual Review of Ecology and Systematics, 2, 369–404.Google Scholar
  78. Schultz, B. B. (1985). Levene’s test for relative variation. Systematic Zoology, 34, 449–456.Google Scholar
  79. Simmen, B., Hladik, A., & Ramasiarisoa, P. (2003). Food intake and dietary overlap in native Lemur catta and Propithecus verreauxi and introduced Eulemur fulvus at Berenty, Southern Madagascar. International Journal of Primatology, 24, 949–968.Google Scholar
  80. Sokal, R. R., & Braumann, C. A. (1980). Significance tests for coefficients of variation and variability profiles. Systematic Zoology, 29, 50–66.Google Scholar
  81. Stearns, S. C. (1989). Trade-offs in life-history evolution. Functional Ecology, 3, 259–268.Google Scholar
  82. Stephens, D. W., & Krebs, J. R. (1986). Foraging theory. Princeton, NJ: Princeton University Press.Google Scholar
  83. Strier, K. B. (1989). Effects of patch size on feeding associations in muriquis (Brachyteles arachnoides). Folia Primatologica, 52, 70–77.Google Scholar
  84. Strier, K. B. (2009). Seeing the forest through the seeds: mechanisms of primate behavioral diversity from individuals to populations and beyond. Current Anthropology, 50, 213–228.PubMedGoogle Scholar
  85. Struhsaker, T. T. (1997). Ecology of an African rainforest. Gainesville: University of Florida Press.Google Scholar
  86. Symington, M. M. (1988). Food competition and foraging party size in the black spider monkey (Ateles paniscus chamek). Behaviour, 105, 117–132.Google Scholar
  87. Terborgh, J. (1983). Five New World primates: A study in comparative ecology. Princeton, NJ: Princeton University Press.Google Scholar
  88. Tutin, C., Fernandez, M., Rogers, E., Williamson, E., & McGrew, W. (1991). Foraging profiles of sympatric lowland gorillas and chimpanzees in the Lope Reserve, Gabon. Philosophical Transactions of the Royal Society of London Series B: Biological Sciences, 334, 179–185.PubMedGoogle Scholar
  89. Tutin, C., & Fernandez, M. (1993). Composition of the diet of chimpanzees and comparisons with that of sympatric lowland gorillas in the Lopé Reserve, Gabon. American Journal of Primatology, 30, 195–211.Google Scholar
  90. Utami, S. S., Wich, S. A., Sterck, E. H. M., & van Hooff, J. A. R. A. M. (1997). Food competition between wild orangutans in large fig trees. International Journal of Primatology, 18, 909–927.Google Scholar
  91. Watts, D. P. (1984). Composition and variability of mountain gorilla diets in the central Virungas. American Journal of Primatology, 7, 323–356.Google Scholar
  92. Watts, D. P. (1998). Coalitionary mate guarding by male chimpanzees at Ngogo, Kibale National Park, Uganda. Behavioral Ecology and Sociobiology, 44, 43–55.Google Scholar
  93. Watts, D. P., & Mitani, J. C. (2001). Boundary patrols and intergroup encounters in wild chimpanzees. Behaviour, 138, 299–327.Google Scholar
  94. Watts, D. P., & Mitani, J. C. (2002). Hunting behavior of chimpanzees at Ngogo, Kibale National Park, Uganda. International Journal of Primatology, 23, 1–28.Google Scholar
  95. Watts, D. P., Muller, M. N., Amsler, S. J., Mbabazi, G., & Mitani, J. C. (2006). Lethal intergroup aggression by chimpanzees in Kibale National Park, Uganda. American Journal of Primatology, 68, 161–180.PubMedGoogle Scholar
  96. White, F. J. (1998). Seasonality and socioecology: the importance of variation in fruit abundance to bonobo sociality. International Journal of Primatology, 19, 1013–1027.Google Scholar
  97. Whitten, P. (1983). Diet and dominance among female vervet monkeys (Cercopithecus aethiops). American Journal of Primatology, 5, 139–159.Google Scholar
  98. Williamson, E. A., Tutin, C. E. G., Rogers, M. E., & Fernandez, M. (1990). Composition of the diet of lowland gorillas at Lopé, Gabon. American Journal of Primatology, 21, 265–277.Google Scholar
  99. Wing, L. D., & Buss, I. O. (1970). Elephants and forests. Wildlife Monographs, 19, 3–92.Google Scholar
  100. Wrangham, R. W. (1977). Feeding behaviour of chimpanzees in Gombe National Park, Tanzania. In T. Clutton-Brock (Ed.), Primate ecology (pp. 504–538). London: Academic Press.Google Scholar
  101. Wrangham, R. W. (2000). Why are male chimpanzees more gregarious than mothers? A scramble competition hypothesis. In P. M. Kappeler (Ed.), Primate males (pp. 248–258). Cambridge: Cambridge University Press.Google Scholar
  102. Wrangham, R. W., Conklin, N. L., Chapman, C. A., & Hunt, K. D. (1991). The significance of fibrous foods for Kibale Forest chimpanzees. Philosophical Transactions of the Royal Society of London Series B: Biological Sciences, 334, 171–178.PubMedGoogle Scholar
  103. Wrangham, R. W., Clark, A. P., & Isabirye-Basuta, G. (1992). Female social relationships and social organization of Kibale Forest chimpanzees. In T. Nishida, W. McGrew, P. Marler, M. Pickford, & F. DeWaal (Eds.), Topics in primatology, Vol. 1: Human origins (pp. 81–98). Tokyo: University of Tokyo.Google Scholar
  104. Wrangham, R. W., Chapman, C. A., Clark-Arcadi, A. P., & Isabirye-Basuta, G. (1996). Social ecology of Kanyawara chimpanzees: Implications for understanding the cost of great ape groups. In W. C. McGrew, L. F. Marchant, & T. Nishida (Eds.), Great ape societies (pp. 45–57). Cambridge: Cambridge University Press.Google Scholar
  105. Wrangham, R. W., Conklin-Brittain, N. L., & Hunt, K. D. (1998). Dietary responses of chimpanzees and cercopithecines to seasonal variation in fruit abundance I: antifeedants. International Journal of Primatology, 19, 949–970.Google Scholar
  106. Yamakoshi, G. (1998). Dietary responses to fruit scarcity of wild chimpanzees at Bossou, Guinea: possible implications for importance of tool use. American Journal of Physical Anthropology, 106, 283–295.PubMedGoogle Scholar
  107. Yamashita, N. (2002). Diets of two lemur species in different microhabitats in Beza Mahafaly Special Reserve, Madagascar. International Journal of Primatology, 23, 1025–1051.Google Scholar

Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • Kevin B. Potts
    • 1
    • 2
  • David P. Watts
    • 1
  • Richard W. Wrangham
    • 3
  1. 1.Department of AnthropologyYale UniversityNew HavenUSA
  2. 2.Department of BiologyAugsburg CollegeMinneapolisUSA
  3. 3.Department of Human Evolutionary BiologyHarvard UniversityCambridgeUSA

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