Nga Nguyen

Contact Information

Office: McCarthy Hall 059
Phone: 657-278-7144
gelada project website 
my website

Nga Nguyen 




PhD, Ecology and Evolutionary Biology, Princeton University

BA/BS, Anthropology & Biology, Barnard College, Columbia University

Recent Courses

Introduction to Biological Anthropology (ANTH 101), Primate Behavior (ANTH 301), Hormones & Behavior (ANTH/BIOL 456), Environmental Issues & Approaches (ENST 500)


  1. Lin, B., Foxfoot, I.R., Miller, C.M., Venkataraman, V.V., Kerby, J.T., Bechtold, E.K., Kellogg, B.S., Nguyen, N., and Fashing, P.J. (2020). Leopard predation on gelada monkeys at Guassa, Ethiopia. American Journal of Primatology 82: e23098. DOI: 10.1002/ajp.23098
  2. Tamrat, M., Atickem, A., Tsegaye, D., Nguyen, N., Bekele, A., Evangelista, P., Fashing, P.J., and Stenseth, N.C. (2020). Human-wildlife conflict and coexistence: A case study from Senkele Swayne’s Hartebeest Sanctuary in Ethiopia. Wildlife Biology DOI: 10.2981/wlb.00712
  3. Trede, F., Lemkul, A., Atickem, A., Beehner, J., Bergman, T.J., Burke, R., Fashing, P.J., Knauf, S., Mekonnen, A., Moges, A., Nguyen, N., Roos, C., and Zinner, D. (2020). Geographic distribution of microsatellite alleles in geladas (Primates, Cercopithecidae): Evidence for three evolutionary units. Zoologica Scripta DOI: 10.1111/zsc.12451
  4. Atickem, A., Stenseth, N.C., Fashing, P.J., Nguyen, N., Chapman, C.A., Bekele, A., Mekonnen, A., Omeja, P., and Kalbitzer, U. (2019). Build science in Africa. Nature 570: 297-300. DOI: 10.1038/d41586-019-01885-1
  5. Fashing, P.J., Nguyen, N., Burke, R., Mekonnen, A. & Gippoliti, S. 2019. Theropithecus gelada ssp. gelada. The IUCN Red List of Threatened Species 2019: e.T136849A17982784
  6. Fashing, P.J., Nguyen, N., Burke, R., Mekonnen, A. & Gippoliti, S. 2019. Theropithecus gelada ssp. obscurus. The IUCN Red List of Threatened Species 2019: e.T40010A17982810
  7. Gippoliti, S., Mekonnen, A., Burke, R., Nguyen, N. & Fashing, P.J. 2019. Theropithecus gelada. The IUCN Red List of Threatened Species 2019: e.T21744A17941908
  8. Trosvik P., de Muinck E.J., Rueness E.K., Fashing P.J., Beierschmitt E.C., Callingham K.R., Kraus J.B., Trew T.H., Moges A., Mekonnen A., Venkataraman V.V., Nguyen N. 2018. Multilevel social structure and diet shape the gut microbiota of the gelada monkey, the only grazing primate. Microbiome 6: 84. DOI 10.1186/s40168-018-0468-6
  9. Zinner, D., Atickem, A., Beehner, J.C., Bekele, A., Bergman, T.J., Burke, R., Dolotovskaya, S., Fashing, P.J., Gippoliti, Knauf, S., Knauf, Y., Mekonnen, A., Moges, A., Nguyen, N., Stenseth, N.C., and Roos, C. (2018). Phylogeography, mitochondrial DNA diversity, and demographic history of geladas (Theropithecus gelada). PLoS ONE 13(8): e0202303. DOI: 10.1371/journal.pone.0202303
  10. Nguyen, N., Lee, L.M., Fashing, P.J., Nurmi, N.O., Stewart, K.M., Turner, T.J., Barry, T.S., Callingham, K.R., Goodale, C.B., Kellogg, B.S., Burke, R.J., Bechtold, E.K., Claase, M.J., Eriksen, G.A., Jones, S.C.Z., Kerby, J.T., Kraus, J.B., Miller, C.M., Trew, T.H., Zhao, Y., Beierschmitt, E.C., Ramsay, M.S., Reynolds, J.D., and Venkataraman, V.V. (2017). Comparative primate obstetrics: Observations of 15 diurnal births in wild gelada monkeys (Theropithecus gelada) and their implications for understanding human and nonhuman primate birth evolution. American Journal of Physical Anthropology 163: 14-29.
  11. Mekonnen, A., Fashing, P.J., Bekele, A., Hernandez-Aguilar, R.A., Rueness, E.K., Nguyen, N., and Stenseth, N.C. (2017). Impacts of habitat loss and fragmentation on the activity budget, ranging ecology and habitat use of Bale monkeys (Chlorocebus djamdjamensis) in the southern Ethiopian Highlands.  American Journal of Primatology DOI: 10.1002/ajp.22644.
  12. Fashing, P.J. and Nguyen, N. (2016). Theropithecus gelada. In: N. Rowe (ed.). All the World’s Primates . East Hampton, NY: Pogonias Press, pp. 447-449.
  13. Fashing, N.J., Ueckermann, E.A., Fashing, P.J., Nguyen, N., Back, A.M., and Allison, L.A. (2016). Bryobia abyssiniae (Prostigmata: Tetranychidae), a new species from the highlands of Ethiopia. International Journal of Acarology 42:366-376.
  14. Shapiro, A.E., Venkataraman, V.V., Nguyen, N., and Fashing, P.J. (2016). Dietary ecology of fossil Theropithecus: Inferences from dental microwear textures of extant geladas from ecologically diverse sites. Journal of Human Evolution 99:1-9.
  15. Nguyen, N., Fashing, P.J., Boyd, D.A., Barry, T.S., Burke, R.J., Goodale, C.B., Jones, S.C.Z., Kerby, J.T., Kellogg, B.S., Lee, L.M., Miller, C.M., Nurmi, N.O., Ramsay, M.S., Reynolds, J.D., Stewart, K.M., Turner, T.J., Venkataraman, V.V., Knauf, Y., Roos, C. & Knauf, S. (2015). Fitness impacts of tapeworm parasitism on wild gelada monkeys at Guassa, Ethiopia. American Journal of Primatology 77:579-594.
  16. Venkataraman, V.V., Kerby, J.T., Nguyen, N., Ashenafi, Z.T. & Fashing, P.J. (2015). Solitary Ethiopian wolves increase predation success on rodents when among grazing gelada monkey herds. Journal of Mammalogy 96: 129-137.
  17. Fashing, P.J., Nguyen, N., Venkataraman, V.V., and Kerby, J.T. (2014). Gelada feeding ecology in an intact ecosystem at Guassa, Ethiopia: Variability over time and implications for theropith and hominin dietary evolution. American Journal of Physical Anthropology 155:1-16.
  18. Venkataraman, V.V., Glowacka, H., Fritz, J., Clauss, M., Seyoum, C., Nguyen, N., and Fashing, P.J. (2014). Effects of dietary fracture toughness and dental wear on chewing efficiency in geladas (Theropithecus gelada). American Journal of Physical Anthropology 155:17-32.
  19. Nguyen, N. (2013). Primate behavioral endocrinology. IN Sterling, E.J., Bynum, N., and Blair M.E, editors. Primate ecology and conservation: A handbook of techniques . Oxford, England: Oxford University Press. Pp. 224-237.
  20. Nguyen N., Gesquiere L., Alberts S.C., Altmann J. 2012. Sex differences in the mother-neonate relationship in wild baboons: social, experiential and hormonal correlates. Animal Behaviour 83:891-903.
  21. Fashing, P.J., Nguyen, N., Luteshi, P., Opondo, W., Cash, J.F., and Cords, M. 2012. Evaluating the suitability of planted forests for African forest monkeys: A case study from Kakamega Forest, Kenya. American Journal of Primatology 74: 77-90.
  22. Fashing, P.J. and Nguyen, N. 2011. Behavior towards the dying, diseased, and disabled among animals and its relevance to paleopathology. International Journal of Paleopathology 1: 128-129.
  23. Fashing, P.J., Nguyen, N., Barry, T.S., Goodale, C.B., Burke, R.J., Jones, S.C.Z., Kerby, J.T., Lee, L.M., Nurmi, N.O., Venkataraman, V.V. 2011. Death among geladas (Theropithecus gelada): A broader perspective on mummified infants and primate thanatology. American Journal of Primatology 73: 405-409.
  24. Fashing, P.J., Nguyen, N., and Fashing, N.J. 2010. Behavior of geladas and other endemic wildlife during a desert locust outbreak at Guassa, Ethiopia: Ecological and conservation implications. Primates 51: 193-197.
  25. Nguyen, N., Van Horn, R.C., Alberts, S.C., Altmann, J. 2009. "Friendships" between new mothers and adult males: Adaptive benefits and determinants in wild baboons (Papio cynocephalus). Behavioral Ecology and Sociobiology 63: 1331-1344.
  26. Nguyen, N., Gesquiere, L.R, Wango, E.O., Alberts, S.C., Altmann, J. 2008. Late pregnancy glucocorticoid levels predict responsiveness in wild baboon mothers (Papio cynocephalus) Animal Behaviour 75:1747-1756.
  27. Fashing, P.J.; Mulindahabi, F.; Gakima, J.-B.; Masozera, M.; Mununura, I.; Plumptre, A.J.; Nguyen, N. 2007. Activity and ranging patterns of Angolan colobus (Colobus angolensis ruwenzorii) in Nyungwe Forest, Rwanda: Possible costs of large group size. International Journal of Primatology 28: 529-550.
  28. Beehner, J., Nguyen, N., Alberts, S.C., Altmann, J. 2006. The endocrinology of pregnancy and fetal loss in wild baboons. Hormones and Behavior 49:688-699.
  29. Altmann, J.; Lynch, J.W.; Nguyen, N.; Alberts, S.C.; Gesquiere, L.R. 2004. Life-history correlates of steroid concentrations in wild peripartum baboons. American Journal of Primatology 64: 95 – 106.
  30. Sterling, E.J.; Nguyen, N.; Fashing, PJ. 2000. Spatial patterning in nocturnal prosimians: A review of methods and relevance to studies of sociality. American Journal of Primatology 51:3-19.
  31. Nguyen, N. 2000. A survey of Tonkin snub-nosed monkeys (Rhinopithecus avunculus) in northern Viet Nam. Folia Primatologica 71:157-160.