Primate Info Net Banner Wisconsin PRC Logo

Marojejy Silky Sifakas (2001 to present)
Field Study in Africa
Web Site: http://www.erikpatel.com
Location of Site: MADAGASCAR

Director: Erik Patel
Phone: 863-202-5848   E-Mail: patel.erik@gmail.com
Ithaca, New York 14853 UNITED STATES
Department: Biological Psychology
Institution: Cornell University

Sponsoring Institution(s): Cornell University, ICTE, MICET

Research Objectives: Behavioral biology and conservation of the silky sifaka.

Field Positions and Volunteers: Since 2001, approximately 12 volunteer field research assistants have participated. Most of them are currently Masters or PhD students. Availability of such positions varies from year to year.

Species Studied: Propithecus candidus (silky sifaka)

Other Species at Site: Allocebus trichotis (hairy-eared mouse lemur), Avahi laniger (eastern avahi), Cheirogaleus major (greater dwarf lemur), Daubentonia madagascariensis (aye-aye), Eulemur albifrons (white-fronted lemur), Eulemur rubriventer (red-bellied lemur), Hapalemur griseus (grey gentle lemur), Lepilemur mustelinus (sportive lemur), Microcebus mittermeieri (Mittermeier's mouse lemur), Phaner furcifer (eastern fork-marked dwarf lemur)

Publications: Articles:

ER Patel and MJ Owren (In Prep.). Acoustic and behavioral analysis of silky sifaka (Propithecus candidus) “zzuss!” alarm vocalizations: The effects of context, sex, and individuality. Journal of the Acoustical Society of America.

Patel, E. 2009. Silky Sifaka Propithecus candidus Grandidier, 1871. In: R. A. Mittermeier et al., Primates in Peril: The World’s 25 Most Endangered Primates 2008–2010, pp.23-26. IUCN/SSC Primate Specialist Group (PSG), International Primatological Society (IPS), and Conservation International (CI), Arlington, VA.

Patel ER (2009, in press). A trajedy with villains: Severe resurgence of selective rosewood logging in Marojejy National Park leads to temporary park closure. Lemur News 14.

ER Patel and LH Andrianandrasana (2008). Low elevation silky sifakas (Propithecus candidus) in the Makira Conservation Site at Andaparaty-Rabeson: Ranging, demography, and possible sympatry with red ruffed lemurs (Varecia rubra). Lemur News 13: 18 - 22.

ER Patel (2007). Logging of rare rosewood and palisandre (Dalbergia spp.) within Marojejy National Park, Madagascar. Madagascar Conservation and Development 2: 11-16.

ER Patel (2007). Non-maternal infant care in wild silky sifakas (Propithecus candidus). Lemur News 12: 39 – 42.

ER Patel and MJ Owren (2007). Acoustics and behavioral contexts of “gecker” vocalizations in young rhesus macaques (Macaca mullata). Journal of the Acoustical Society of America 121(1): 575 – 585.

ER Patel (2006). Activity budget, ranging, and group size in silky sifakas. Lemur News 11: 42 – 45.

ER Patel (2005). Silky sifaka (Propithecus candidus) predation by a Fossa (Cryptoprocta ferox). Lemur News 10: 25-27.

ER Patel, JJ Marshall, and H Parathian (2005). Silky sifaka (Propithecus candidus) conservation education in northeastern Madagascar. Laboratory Primate Newsletter 44(3): 8-11.

Erik R Patel. (2003). Focus on a critically endangered primate: Silky Sifakas. Canopy 2(1): 17.

Contributing Author Towards:
Silky Sifaka. Mammals of Madagascar: A Complete Guide by Nick Garbutt. 2007. London: A&C Black.

Contributing Author Towards:
Silky Sifaka. Lemurs of Madagascar by Mittermeier, R.A., Konstant, W.R., Hawkins, F., Louis, E.E., Langrand, O., Ratsimbazafy, J., Rasoloarison, R., Ganzhorn, J.U., Rajaobelina, S., Tattersal, I., and Meyers, D.M. 2006. Second edition. Washington DC: Conservation International.

Contributing Author Towards:
Silky Sifaka. All The World’s Primates (In Press) by Noel Rowe


Published Conference Abstracts:

ER Patel and C Girard-Buttoz (2008). Non-nutritive tree gouging: Description and potential communicative functions. International Primatological Society. Abstract #283.

M Nielson and ER Patel (2008). The role of taste preference and wealth in bushmeat hunting in villages adjacent to Marojejy National Park, Madagascar. International Primatological Society Abstract #616.

E Queslin and ER Patel (2008). A preliminary study of wild silky sifaka (Propithecus candidus) diet, feeding ecology, and habitat use in Marojejy National Park, Madagascar. International Primatological Society. Abstract #143.

MJ Owren and ER Patel (2008). A little of this, a lot of that: Specificity and variability in nonhuman primate vocal repertoires. International Primatological Society. Abstract #742.

LH Andrianandrasana, ER Patel, and PC Wright (2007). A comparison of scent overmarking in two species of wild rainforest sifakas: silky sifakas (Propithecus candidus) and Milne-Edwards’ sifakas (Propithecus edwardsi). Prosimian Congress Abstracts.

ER Patel and MJ Owren (2006). Dissecting the acoustic umbilical cord: Selective maternal responsiveness to particular acoustic features of rhesus macaque (Macaca mullata) infant gecker vocalizations. American Journal of Primatology 68(1): 139.

ER Patel (2006). Appealing to hearts and minds: Silky sifaka (Propithecus candidus) conservation education in north-eastern Madagascar. American Journal of Primatology 68(1): 87.

JD Anderson, ER Patel, MT Irwin, and MJ Owren (2006). Species differences in the acoustic structure of zzuss alarm vocalizations of silky sifakas (Propithecus candidus) and diademed sifakas (Propithecus diadema). American Journal of Primatology 68(1): 71-72.

ER Patel (2006). Scent-marking in wild silky sifakas (Propithecus candidus): Sex differences and seasonal effects in usage and response across multiple scent-mark types. International Journal of Primatology 27(Suppl 1): 496

ER Patel, JD Anderson, and MJ Owren (2006, Oral Presentation). Exploring the function of “Zzuss” alarm vocalizations in wild silky sifakas: Moderate evidence for individual distinctiveness. International Journal of Primatology 27 (Suppl 1): 504

A Ritchie and ER Patel (2006). “Totem tree” scent-marking in wild silky sifakas: Existence and potential function. International Journal of Primatology 27 (Suppl 1): 504

C Santorelli, H Parathian, and ER Patel (2006, Poster Presentation). Silky sifaka demography, ranging, and activity budget. International Journal of Primatology 27 (Suppl 1): 299

C Coke and ER Patel (2005). Efficacy of four novel enrichment items in outdoor group-housed macaques (Macaca mullata and M. fascicularis): Differences in age, sex, and species classes. American Journal of Primatology 66(Suppl 1): 177.

ER Patel, JD Anderson, MT Irwin, and MJ Owren (2005). Quantifying the vocal repertoire of wild adult diademed sifakas (Propithecus diadema diadema) in Madagascar. American Journal of Primatology 66(Suppl 1): 48.

ER Patel, JD Anderson, and MJ Owren (2005). Sex differences in the acoustic structure in a monomorphic primate: Wild silky sifakas (Propithecus candidus) of Northeastern Madagascar. American Journal of Primatology 66(Suppl 1): 46-47.

Erik R Patel and Michael J Owren (2004). Acoustic and behavioral analyses of gecker distress vocalizations in young rhesus macaques (Macaca mullata). Journal of the Acoustical Society of America 115: 2485.

Patel ER, Coke CS, Ritchie A, Santorelli C (2003). Assessing production specificity of free-ranging silky sifaka (Propithecus diadema candidus) “antipredator” vocalizations: weak evidence for specialized “aerial predator” but not “terrestrial predator” calls. American Journal of Primatology 60 (Suppl 1): 71-72.

Patel ER, Coke CS, Ritchie A, Santorelli C (2003). Alloparental care (including allonursing) in free-ranging silky sifakas (Propithecus diadema candidus) in a primary northeastern montane rainforest in Madagascar
American Journal of Primatology 60 (Suppl 1): 71-72.

Comments: The silky sifaka website (www.erikpatel.com) and the Marojejy National Park website (www.marojejy.com) contain more information.

Last Updated: 2010-02-27


[Edit Entry] [Delete Entry] [Search IDP]