Udzungwa red colobus  (Piliocolobus gordonorum)

Diurnal: Active during the day.
Primary: Primary forest is forest that has remained undisturbed for a long time and has reached a mature condition.
Secondary forests: Forest that has re-grown after a major disturbance, such as fire or timber harvest, but has not yet reached the mature state of primary forest.
Shanks: The part of the leg between the knee and the ankle.

1. IUCN Red List (January, 2006)
   http://www.iucnredlist.org
   
2. Richardson, M. (2006) Living Primates of the World: an Illustrated Taxonomy. In press, Unknown.
   
3. CITES (January, 2006)
   http://www.cites.org
   
4. Animal Diversity Web (May, 2006)
   http://animaldiversity.ummz.umich.edu/site/index.html
   
5. Struhsaker, T.T. (2005) Conservation of Red Colobus and Their Habitats. International Journal of Primatology, 26 (3): 525 - 538.
   
6. Formenti, D. and Vitale, A. (2004) Abstracts from the 16th Meeting of the Italian Primatological Society, held at Convento dell'Osservanza, Radicondoli, October 28-30, 2003. Folia Primatol, 75: 385 - 414.
   
7. Struhsaker, T.T., Marshall, A.R., Detwiler, K., Siex, K., Ehardt, C., Lisbjerg, D.D. and Butynski, T.M. (2004) Demographic variation among Udzungwa red colobus in relation to gross ecological and sociological parameters. International Journal of Primatology, 25 (3): 615 - 658.
   
8. Udzungwa Mountains National Park (April, 2006)
   http://www.udzungwa.org
   
9. Marshall, A. (2003) Forest Monkeys in Tanzania. BBC, Online. Available at:
   http://www.bbc.co.uk/northyorkshire/uncovered/science_week/monkeys/monkeys.shtml
   
10. Marshall, A., Topp-Jorgensen, J.E., Brink, H. and Fanning, E. (2005) Monkey abundance and social structure in two high-elevation forest reserves in the Udzungwa mountains of Tanzania. International Journal of Primatology, 26 (1): 127 - 145.
    
11. Rufford Small Grants for Nature Conservation (April, 2006)
    http://www.rufford.org/rsg/Projects/FrancescoRovero.html