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.

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Adult males disperse from their natal group and must compete with alpha males to gain acceptance into a new social group.

Cytochrome b sequences show subdivision between populations of the brown howler monkey Alouatta guariba from Rio de Janeiro and Santa Catarina, Brasil. Trophic niche overlap in syntopic Alouatta guariba clamitans and Alouatta caraya. A network-patch methodology for adapting agent-based models for directly transmitted disease to mosquito-borne disease.

Alouqtta this case, periodic epidemics might cause the population to decline to levels that lead to inbreeding depression, such that the elevated probability of extinction clmaitans these low lethality guaariba might not have occurred if inbreeding depression was not in the model. Los Nombres cientificos de algunos monos americanos.

Boletim do Museu Municipal, 1: Rubbing behavior in brown howlers serves a variety of functions. We also describe the process of definition of the input parameters, highlighting the contribution of each one for the whole system.

There are no specific references to support these population numbers and were based on the field experience of researchers Agostini et al. Alouatra, Gabriela Ludwig, Gustavo R.

Oxford University Press, Oxford. The alpha male usually monopolizes all reproductive females and sires all young.

Revista Brasileira de Zoologia, 23 1: Population viability analysis of howler monkeys Alouatta palliata mexicana in a highly fragmented landscape in Los Tuxtlas, Mexico. Journal of Human Evolution, Infant hybrids in a newly formed mixed species group of howler monkeys Alouatta guariba clamitans and Alouatta caraya in northeastern Argentina. However, males aged four years old tend to disperse more than females Oklander et al.


Southern brown howler – Wikipedia

Howler monkeys and spider monkeys. Thus, we tried to simulate clamitaans the population of brown howler monkey might potentially be distributed in Misiones Fig. Habitat, density and group size of primates in a Brazilian tropical forest. Accessed December 31, at https: Population biology of infectious diseases.

Secretaria Municipal do Verde e do Meio Ambiente.

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

For example, in the first outbreak episode of a given model iteration Fig. In the epidemics that occurred in Argentina betweenseveral outbreaks affecting humans and howler monkeys Alouatta spp were reported, highlighting the importance of guarina disease in the context of conservation medicine and public health policies. XI Congresso Brasileiro de Primatologia. Received Feb 23; Accepted Sep 3. Densidade populacional de Alouatta fusca clamitans Primates: Revista Brasileira de Zoologia, 22 1: Chromosome Research, 10 8: But, we believe, this simulation would be useful to illustrate the possible mechanisms related to metapopulation dynamics, not evaluated in the baseline model.

Paim, Fernando de C. However, it was estimated that for both males and females the mortality rate would increase after the age of The population was modelled for years approximately 15 generations so that long-term population trends could be observed.

This may be considered a true minimum value, since in Argentina clamitajs last YFV transmission recorded was in Goenaga et al. Abstract In South America, yellow fever YF is an established infectious disease that has been identified outside of its traditional endemic areas, affecting human and nonhuman primate NHP populations.

The sensitivity analysis showed that the frequency and impact of outbreaks is strongly affected by the encounter rate Fig. These parameters are highly uncertain in the scientific literature. Despite this, habitat fragmentation due to deforestation and development in south-eastern Brazil and north-eastern Argentina is the major factors impeding the persistence of this species. Sociedade Brasileira de Zoologia, Porto Alegre.


To make the model able to support the transmission of a vector-borne disease, we translated some basic components like exposed and infectious into different ways of viewing the system: Individuals that survive the infection develop permanent immunity to future infective events Poland et al. Intrinsic rate of natural increase in Neotropical forest mammals: In the aliuatta context, this analysis was used to uncover particularly sensitive parameters that could significantly alter the results and conclusions derived from the model.

The first seven months of an infant Alouatta guariba Humboldt Primates, Atelidae: Contudo, Rylands et al. American Journal of Primatology70 6: From those foci, epidemic waves of viral dissemination tend to occur clamitams cycles of between seven years Vasconcelos et al.

As an alternative for the sensitivity analysis, we included the extrinsic incubation period in the mosquito AlouuattaClamitajs et al.

Their folivorous diet may account for the ability to breed year-round, as mature leaves are available throughout the year and provide a relatively stable source of energy. Furthermore, for the purpose of this modelling exercise, we assumed that this population occupies a habitat area that has a K of 50 individuals through time. We estimated that males dispersed more than females Oklander et al. In Primates where males outnumber females, male-male competition for resources and mates is intense, which may lead to sexual dimorphism and polygny.