S01: "Behavior, Ecology, and Conservation of Colobine Monkeys"

Organizer: Fashing P.

Friday 27/08/04

Time: 10:30/19:00

Lingotto Fiere: Sala Londra

Despite comprising a diverse subfamily of large and often striking primates, colobine monkeys received limited attention from early primatologists. Most of the intensive pioneering colobine studies did not occur until the 1970s and typically focused on the natural history of the most accessible species in South Asia and East Africa. Owing largely to issues raised by these early studies, interest in colobines blossomed in the 1980s and 90s and today our knowledge of colobine ecology rivals that for any other subfamily of primates. Behavioral knowledge of the colobines has lagged behind somewhat due to difficulties of observation and individual recognition in the forested environments typical of these monkeys. However, even these difficulties have recently begun to be at least partly surmounted by studies employing paint marking. Today, long-term studies of colobines are ongoing at more sites in Africa and Asia than ever before and this symposium will bring together many colobine specialists to present their recent research on colobine behavioral ecology. Unfortunately, while our understanding of colobine behavior and ecology is currently advancing at an unprecedented rate, the conservation situations of many colobine taxa are becoming increasing dire. Several forms of Procolobus and Rhinopithecus are on the verge of extinction and many other colobine taxa face significant threats to their survival as well. Several presentations at this symposium will therefore focus on colobine conservation and, in some cases, use the results of recent studies of colobine behavioral ecology to make recommendations about colobine conservation needs.

Li Z., Wei Y., Rogers E.M.

“Habitat Quality and Food Choice of White-Headed Langurs in Fusui, China”

Aggimarangsee N., Sitasuwan N., Brockelman W., Trisonthi C.

“Feeding ecology of an isolated dusky langur (Trachypithecus obscurus) population at khao lommuak, southern thailand.”

Dela J.

“Seasonal food use strategies of a colobine frugivore, Trachypithecus vetulus nestor, at Panadura and Piliyandala, Sri Lanka.”

Gupta A.K., Dasgupta S.

“Feeding ecology of Phayre’s (Trachypithecus phayrei), capped (T. pileatus) and golden (T. geei) langur in Tripura, Northeast India: A comparison.”

Fashing P.J., Plumptre A.J., Mulindahabi F., Gakima J.B., Masozera M., Munanura I., Nguyen N.

“Ranging patterns of an unusually large Colobus angolensis group in rwanda”

Marshall A.R.

“Ecology and social demography of the udzungwa colobines: a summary of current knowledge”

Korstjens A.H., Dunbar R.I.M.

“Ecological determinants of colobus group size”

Schülke O., Koenig A.

“Ecological constraints on group size in folivores”

Dasgupta S., Gupta A.K.

“Response of capped langur (Trachypithecus pileatus) against the observer in the wild– a case study from Northeast India.”

Sicotte P., Saj T.L., Teichroeb J.A.

“Context and Function of Loud Calls in Colobus vellerosus”

Harris T.

“The Relationship Between Roaring and Intergroup Encounters in Black and White Colobus Monkeys (Colobus guereza) in Kibale National Park, Uganda”

Tan C.L., Li B., Zhao D.

“What’s sex got to do with it?: a preliminary study on the sexual behavior of sichuan snub-nosed monkeys (Rhinopithecus roxellana) in qinling, china”

Ostner J., Borries C.

“How to achieve paternity in hanuman langur multimale groups?”

Siex K.S.,

“Alterations in social behavior and structure in response to population compression in the zanzibar red colobus (Procolobus kirkii)”

Gillespie T.

“Behavioral responses of red colobus to parasitic infection and infection risk”

Mbora D., Meikle D.

“Habitat Fragmentation and the Conservation of the Tana River Red Colobus (Procolobus rufomitratus).”

Anderson J.

“Effects of habitat fragmentation and landscape structure on the status of angolan black and white colobus monkeys (Colobus angolensis palliatus) in southern Kenya”

Chapman C.A., Naughton L., Lawes M.L., Wasserman M.D.

“Conservation value of forest fragments: explanations for population declines of colobus of western Uganda”