2010 Vol 101.pdf (1.63mb) - Primate Society of Great Britain

adaptive responses to such calls. Callicebus monkeys have been known for
their large repertoire of vocalizations, and some of their calls are combined
into long and complex sequences. However, the monkeys’ vocal responses
to distinct external events have not been studied systematically. We studied
the alarm calls of undisturbed black-fronted titi monkey (C. nigrifrons) in
Minas Gerais, southeast Brazil, by presenting visual predator models. Our
preliminary results show that monkeys produce two different types of calls
when first encountering different types of predators. Furthermore, they
produce a long sequence of calls, in which some of them can be further
subdivided into four acoustic variants, which are obtained by optional
suffixation and duplications of the call stem. In addition, one of the alarm
calls, given to puma for instance, is also used in other contexts, such as
when monkeys were foraging close to the ground, and in response to a non
predator animal. Overall, our results indicate no fundamental differences to
the acoustic flexibility previously reported from Old World monkeys,
suggesting an early origin within the primate lineage. However, the fact that
some calls or call sequences were given in both predatory and nonpredatory
situations illustrate the need for empirical studies that focus on
naturally produced calls and their context. Additionally, future research
using playback experiments with alarm calls and analyses of listeners’
responses is required.
Sponsors: CAPES/Brazil and FAPEMIG/Brazil.
The Aspinall Foundations in situ primate conservation projects
M. Kingston Jones 1 and N. Laurence 2
1. Howletts and Port Lympne Wild Animal Parks
2. The Aspinall Foundation
The Aspinall Foundation (TAF) is a registered charity that is actively
involved with several projects that incorporate a diverse range of in situ
conservation activities. These include the well-established overseas projects
in the Republic of Congo and Gabon and more recent developing projects in
Indonesia and Madagascar. Our main spheres of in situ conservation-based
activity include ecosystem management, local community education
projects, capacity building, habitat surveys, rehabilitation of confiscated
wild animals and reintroduction of captive-bred and confiscated wild-born
animals. This poster will summarise our recent activities over these three
key projects, including - from Congo and Gabon - updates from the PPG
field sites with the Western lowland gorilla (Gorilla gorilla gorilla) and
wildlife law enforcement in Congo. In Indonesia, our new rehabilitation and
possible reintroduction site in Java for the moloch gibbon (Hylobates
moloch) and Javan langur (Trachypithecus auratus), protected area
management in Indonesia and Camera trapping in Java and Sumatra. And
from Madagascar, updates on the current status of new projects with the
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