Apesar de Alouatta guariba clamitans apresentar ampla distribuição na Mata Atlântica, do rio Doce (ES) ao rio Camaquã (RS) e a oeste até o norte da Argentina. The social group of the brown howler monkey, Alouatta guariba clamitans Cabrera, is typically small (2–12 individuals), with one or two adult males, and. Adult females are covered in dark brown or reddish brown hair. A latitudinal color gradient occurs in the subspecies Alouatta guariba clamitans. Males tend to be.

Author: Fenrirr Kagor
Country: Philippines
Language: English (Spanish)
Genre: Sex
Published (Last): 20 May 2007
Pages: 159
PDF File Size: 14.5 Mb
ePub File Size: 4.40 Mb
ISBN: 922-7-93980-140-2
Downloads: 13027
Price: Free* [*Free Regsitration Required]
Uploader: Nikokasa

Habitat, density and group size of primates in a Brazilian tropical forest. Each scenario featured iterations and was run for years.

ADW: Alouatta guariba: INFORMATION

Taxonomy of the Neotropical primates — database. A latitudinal color gradient occurs in the subspecies Alouatta guariba clamitans. Adult females are covered in dark brown or reddish brown hair. Bull World Health Organ. Fiocruz; Rio de Janeiro: Grzimek’s Animal Life EncyclopediaVol. Status-based differences in rubbing behavior are also observed among female brown howlers. Contact with and transmission of virus through an external environmental source – To estimate this parameter value, we noted that the YF shows a cycle with a minimum of approximately 14 years 5, days between outbreaks as reviewed by Camara et al.

Neotropical Primates, 8 2: Neotropical Primates, 2 4: Scenario settings – Duration of simulation – Life expectancy of howlers is approximately years in the wild.

The flowers and leaves of various types of lianas i.

Martins e Wilson R. Neotropical Primates 14 2: Alouatta fusca clamitans Cabrera, The brown howler is the rarest primate species in Argentina, restricted to east-central Misiones province Holzmann et al.

Brown howlers form multi-male, multi-female groups; single-male, multi-female groups; and single-male, single-female groups.


Impact of feral dogs in an guarba Atlantic Forest fragment in southeast Brazil. Trophic niche overlap in syntopic Alouatta guariba clamitans and Alouatta caraya.

There is a significant amount of measurement uncertainty associated with many of the input parameters used in our Alouwtta and Outbreak models of YF disease epidemiology. Two complementary modelling tools were used to evaluate brown howler population dynamics in the presence of the disease: In some areas, ocelots reportedly consume high numbers of brown howlers.

Culicidae and nonhuman primates NHPin what has been termed “sylvatic cycle” Vasconcelos et al. In Brazil, brown howlers are the only primate species on the protected guarba Ilha do Cardososo. A group of nine experts in different fields primate ecology, eco-epidemiology, mosquito ecology and virology dedicated themselves to gathering, systematising and discussing all available data and information on brown howlers and YF in the Atlantic Forest.

Population viability analysis of howler monkeys Alouatta palliata mexicana in a highly fragmented landscape in Los Tuxtlas, Mexico.

Records of primates at Itatiaia Cclamitans Park, Brazil. Genetic consequences of habitat fragmentation in black-and-gold howler Alouatta caraya populations from northern Argentina.

Howlers are potential reservoirs for human disease such as yellow fever and giardia. Many species of roundworms including thread wormspin worms and whip worms spend at least part of their complex life cycle in the tissues of brown howlers, as do many species of flatwormsincluding liver flukes and lung flukes.

Dental disorders in brown howler monkeys (Alouatta guariba clamitans) maintained in captivity.

Our goal in this paper is to present, in a more detailed fashion, the combined use of different modelling tools to simulate YFV transmission dynamics among brown howler monkey populations in northeastern Argentina in order to gain a better understanding of YF dynamics in New World NHP.


Therefore, the impact of an YF outbreak on a population is devastating, as huariba mortality rate highly increases Fig.

Biologia Geral e Experimental Impresso To model infectious processes, the state of each individual in the population is tracked and the probabilities of transition among states are specified as alouatha of the number of individuals in each state and of other relevant alouatfa, such as the contact rate and the latent period of infection. Kinship and Behaviour in Primates. The reproductive consequences of male cooperation in the red howler monkey: Gariba baseline Vortex howler monkey demographic model, linked to the baseline Outbreak model of YF epidemiology, showed an annual stochastic population growth rate of American Journal of Primatology70 6: Susceptible state – Encounter rate – Considering that YFV is a vector-transmitted pathogen with multiple potential hosts and vectors, the traditional concept of contact rates among diseased host individuals does not fit in our case.

International Journal of Primatology19 3: Evidence suggests that males of sexually dimorphic guariga have shorter lifespans than females, however, there is no evidence that this occurs in brown howlers.

Red circles represent the potential subpopulations numbered from currently present in Misiones. APA Rota do Sol Revista Brasileira de Biologia, 55 1: Extra group copulations are less frequent in Alouatta relative to other Primates.

These animals show acute forms of the disease, with severe clinical evolution and high mortality CrockettSallis et al. Universidade Federal do Rio Grande do Sul.