Skip directly to: Main page content


Truman P. Young - Professor and Restoration Ecologist





  1. Young, T.P. & L.A. Isbell.   1991.   Sex differences in giraffe feeding ecology: energetic and social constraints.   Ethology 87: 79-89. pdf
  2. Ginsberg, J.R. & T.P. Young. 1992.   Measuring association between individuals and groups in behavioural studies.   Animal Behaviour 44: 377-379.
  3. Madden, D. & T.P. Young.   1992.   Ants as alternative defenses against giraffe herbivory in spinescent Acacia drepanolobium.   Oecologia 91: 235-238.
  4. Isbell, L.A. & T.P. Young.   1993.   Human presence reduces leopard predation in a free-ranging population of vervet monkeys (Cercopithecus aethiops).   Animal Behaviour 45: 1233-1235.
  5. Isbell, L.A. & T.P. Young.   1993.   Social and ecological influences on activity budgets of vervet monkeys, and their implications for group living.   Behavioral Ecology and Sociobiology 32: 377-385.
  6. Young, T.P. & M.E. Evans.   1993.   Alpine vertebrates of Mount Kenya, with particular notes on the rock hyrax.   Journal of the East African Natural History Society 82(202): 54-79.
  7. Young, T.P. 1994.   Natural die-offs of large mammals: implications for conservation.   Conservation Biology 8:410-418.
  8. Young, T.P. & L.A. Isbell. 1994.   Minimum group size and other conservation lessons exemplified in a naturally declining primate population.   Biological Conservation 68: 129-134.
  9. Oloo, T., R. Brett & T.P. Young. 1994.   Seasonal variation in feeding ecology of black rhinoceros ( Diceros bicornis L.) in Laikipia, Kenya.   African Journal of Ecology 32: 142-157.
  10. Young. T.P. & A.P. Smith. 1994.   Alpine herbivory on Mount Kenya.   219-235 in: Tropical Alpine Environments: Plant Form and Function. P.W. Rundel, A.P. Smith & F.C. Meinzer, eds.   Cambridge University Press, Cambridge.
  11. Young, T.P. 1995. 'The evolution of group size and the evolution of group living' and 'Predation risk, predation rate, and the effectiveness of anti-predator traits'.   Boxes in: Isbell, L.A.   Predation on primates: ecological patterns and evolutionary consequences.   Evolutionary Anthropology 3: 62-71.
  12. Isbell, L.A. & T.P. Young. 1996.   The evolution of bipedalism in hominids and reduced group size in chimpanzees: alternative responses to decreasing resource availability.   Journal of Human Evolution 30:289-297.
  13. Young, T.P. 1996.   Little criminals.   Pp. 117-126 in: I've been gone far too long.   M. Borgerhof Mulder, ed. RDR Press, Berkeley.   (Reprinted in Natural History, June 1996:28-31.)
  14. Wester, A. & T.P. Young. 1997.   Spatial pattern of deer herbivory at suburban forest edges. Restoration & Management Notes 15:186-187.
  15. Russo, C. & T.P. Young. 1997.   Egg and seed removal at urban and suburban forest edges. Urban Ecosystems 1:171-178.
  16. Isbell, L.A., J. Pruetz and T.P. Young. 1998.   Movements of vervet and patas monkeys as estimators of food resource site, density, and distribution.   Behavioural Ecology and Sociobiology 42:123-133.
  17. Isbell   L.A., J. Pruetz, & T.P. Young. 1998.   Locomotor activities of sympatric vervet and patas monkeys: implications for hominid hindlimb evolution.   Am. J. Physical Anthropology 105:199-207.
  18. Ostro, L.E.T., S.C. Silver, F.W. Koontz, T.P. Young and R. H. Horwich. 1999.   Ranging behavior of translocated and established groups of black howler monkeys Alouatta pigra in Belize, Central America.   Biological Conservation 87:181-190.
  19. Ostro, L., T.P. Young, S.C. Silver, and F.W. Koontz. 1999.   A geographic information system (GIS) method for estimating home-range size.   Journal of Wildlife Management 63:748-755.
  20. Isbell, L.A., J. Pruetz,   B.M. Nzuma, and T.P. Young.   1999.   Comparing measures of daily travel distance in primates: methodological considerations and socioecological implications.   American Journal of Primatology 48:87-98.
  21. Isbell, L.A., J. Pruetz   & M. Lewis, T.P. Young.   1999. Rank differences in ecological behavior: a comparative study of patas monkeys (Erythrocebus patas) and vervets (Cercopithecus aethiops).   International Journal of Primatology 20:257-272.
  22. Ostro, L.E.T., T.P. Young, S.C. Silver, F.W. Koontz. 2000. Habitat selection by translocated howler monkeys in Belize.   Animal Conservation 3: 175-181.
  23. Young, T.P. 2000. Matching wits with the hyrax.   Muse Magazine, September, 28-34. (adapted from publication #13).
  24. Isbell, L.A. & T.P. Young. 2002. Ecological models of female social relationships in primates: similarities, disparities, and some directions for future clarity. Behaviour 139:177-202.
  25. Young, T.P., S. Talbot & W. Wamiti.   2003.   Checklist of the birds of Mpala/Segera.   8 pp.  
  26. Young, T.P., T.M. Palmer & M.E. Gadd. 2005.   Competition and compensation among cattle, zebras, and elephants in a semi-arid savanna in Laikipia, Kenya.   Biological Conservation 122:351-359.
  27. Stanton, M.L., T.M. Palmer, & T.P. Young. 2005. Ecological barriers to early colony establishment in three coexisting acacia-ant species in Kenya.  Insectes Sociaux 52:393-401.
  28. Odadi, W.O., T.P. Young, & J.B. Okeyo-Owuor. 2007. The effects of wild herbivores on cattle diet in Laikipia rangeland, Kenya.  Rangeland Ecology and Management 60:179-185.
  29. Odadi, W.O., T.P. Young & J.B. Okeyo-Owuor.   Effects of large wild herbivores on cattle intake and travel rates in a semi-arid savannah rangeland, Kenya.   In review.