The following bibliography has been generated by bringing together all references provided by our content partners. There may be duplication.

References

  • 1. IUCN Red List (October, 2007) http://www.iucnredlist.orghttp://www.iucnredlist.org External link.
  • 10. Isaac, N.J.B. and Cowlishaw, G. (2004) How species respond to multiple extinction threats. Proceedings of the Royal Society of London B, 271: 1135 - 1141.
  • 11. UNEP-WCMC (December, 2007) http://www.unep-wcmc.org/sites/wh/pdf/Tai%20Forest.pdfhttp://www.unep-wcmc.org/sites/wh/pdf/Tai%20Forest.pdf External link.
  • 1998. website, Mammal Species of the World
  • 2. Kingdon, J. (1997) The Kingdon Field Guide to African Mammals. Academic Press Ltd, London.
  • 3. CITES (October, 2007) http://www.cites.orghttp://www.cites.org External link.
  • 4. Macdonald, D.W. (2006) The Encyclopedia of Mammals. Oxford University Press, Oxford.
  • 5. Richardson, M. (March, 2009) Pers. Comm.
  • 6. Korstjens, A.H. and Noë, R. (2004) Mating system of an exceptional primate, the olive colobus (Procolobus verus). American Journal of Primatology, 62 (4): 261 - 273.
  • 7. Stuart, C. and Stuart, T. (1997) Field Guide to the Larger Mammals of Africa. Struik Publishers, Cape Town.
  • 8. Oates, J.F. and Whitesides, G.H. (2005) Association between olive colobus (Procolobus verus), Diana guenons (Cercopithecus diana), and other forest monkeys in Sierra Leone. American Journal of Primatology, 21 (2): 129 - 146.
  • 9. Davies, A.G., Oates, J.F. and Dasilva, G.L. (1999) Patterns of frugivory in three West African colobine monkeys. International Journal of Primatology, 20 (3): 327 - 357.
  • Barton, R. 1999. The evolutionary ecology of the primate brain. Pages 167-203 in P. C. Lee, editor. Comparative Primate Socioecology. Cambridge University Press, Cambridge.
  • Burton, J., B. Pearson. 1988. The Collins Guide to the Rare Mammals fo the World. Lexington, Massachusetts: The Stephen Greene Press.
  • C. Michael Hogan. 2013. ''Niger River''. Encyclopedia of Earth, National Council for Science and the Environment, Washington DC ed. M. McGinley
  • Damuth, J. 1993. Cope's rule, the island rule and the scaling of mammalian population density. Nature 365:748-750.
  • Davies, A. G., and J. F. Oates. 1994. Colobine monkeys: their ecology, behaviour and evolution. Cambridge University Press, Cambridge, UK.
  • Flannery, S. 2000. Accessed September 23, 2001 at www.primate.wisc.edu/pin/factsheets/procolobus_verus.html.
  • Hill, R. A., and P. C. Lee. 1998. Predation risk as an influence on group size in cercopithecoid primates: implications for social structure. Journal of Zoology 245:447-456.
  • Kappeler, P. M., and E. W. Heymann. 1996. Nonconvergence in the evolution of primate life history and socio-ecology. Biological Journal of the Linnean Society 59:297-326.
  • Kappeler, P. M., and M. E. Pereira. 2003. Primate Life Histories and Socioecology. The University of Chicago Press, Chicago, ILlinois, USA.
  • MacDonald, D. 2001. The New Encyclopedia of Mammals. Oxford University Press, Oxford, UK.
  • Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. 2006. The Animal Diversity Web (online). Accessed February 16, 2011 at http://animaldiversity.org. http://www.animaldiversity.org
  • Noe, R., R. Bshary. "Association of red and olive colobus monkeys with diana monkeys" (On-line). Accessed 11/14/2001 at www.mpi-seewiesen.mpg.de/~knauer/noe/taenc.html.
  • Nowak, R. 1997. "Walker's Mammals of the World/Olive Colobus Monkey" (On-line). Accessed November 12, 2001 at www.press.jhu.edu/walkers_mammals_of_the_world/primates/primates.cercopithecidae.procolobus.html.
  • Oates, J. 1988. The diet of the olive colobus monkey, *Procolobus verus*, in Sierra Leone. International Journal of Primatology, 9/5: 457-478.
  • Oates, J., G. Whitesides. 1990. Association between Olive Colobus, *Procolobus verus*, Diana guenons, *Cercopithecus diana*, and other Forest Monkeys in Sierra Leone.. American Journal of Primatology, 21/2: 129-146.
  • Orrell T. (custodian) (2013). ITIS Global: The Integrated Taxonomic Information System (version Sept 12). In: Species 2000 & ITIS Catalogue of Life, 11th March 2013 (Roskov Y., Kunze T., Paglinawan L., Orrell T., Nicolson D., Culham A., Bailly N., Kirk P., Bourgoin T., Baillargeon G., Hernandez F., De Wever A., eds). Digital resource at www.catalogueoflife.org/col/. Species 2000: Reading, UK.
  • Purvis, A., J. L. Gittleman, G. Cowlishaw, and G. M. Mace. 2000. Predicting extinction risk in declining species. Proceedings of the Royal Society of London 267:1947-1952.
  • Smith, F. A., S. K. Lyons, S. K. M. Ernest, K. E. Jones, D. M. Kaufman, T. Dayan, P. Marquet, J. H. Brown, and J. P. Haskell. 2003. Body size of late Quaternary mammals. Ecology 84:3403.
  • Smuts, B. B., D. L. Cheney, R. M. Seyfarth, R. W. Wrangham, and T. T. Struhsaker. 1987. Primate Societies. University of Chicago Press, Chicago, Illinois, USA.
  • Weckerly, F. W. 1998. Sexual-size dimorphism: Influence of mass and mating systems in the most dimorphic mammals. Journal of Mammalogy 79:33-52.
  • Wilson, Don E., and DeeAnn M. Reeder, eds. 1992. Mammal Species of the World: A Taxonomic and Geographic Reference, 2nd ed., 3rd printing
  • Wilson, Don E., and DeeAnn M. Reeder, eds. 1993. Mammal Species of the World: A Taxonomic and Geographic Reference, 2nd ed., 3rd printing. xviii + 1207
  • Wilson, Don E., and F. Russell Cole. 2000. Common Names of Mammals of the World
  • Wilson, Don E., and F. Russell Cole. 2000. Common Names of Mammals of the World. xiv + 204

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