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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Southern brown howler – Wikipedia

Author information Article notes Copyright and License information Disclaimer. Home ranges are small, up to 31 hectares for a group of 15 to 20 individuals.

These animals show acute forms of the disease, with severe clinical evolution and high mortality CrockettSallis et al. In the metapopulation simulation analysis, we illustrated that YF does not impact all aloouatta equally and the probability of extinction was reduced compared with the concentrated population analysed in the baseline model. Specifically, changing the baseline values for the incubation latent period of the pathogen and the infectious period lead to only very small impacts on population outcome.

Sociedade Brasileira de Zoologia, Porto Alegre. Number of iterations – One thousand independent iterations were run for each scenario. For this, we set a starting population of 30 brown howler monkeys, aged one year and older. Disease dynamic simulation – To better illustrate the single iterations in the YF disease dynamics, we made a simulation using Outbreak alone. There is a significant amount of measurement uncertainty associated with many of the input parameters used in our Vortex and Outbreak models of YF disease epidemiology.

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Universidade Estadual de Campinas. Iteroparous akouatta must, by definition, survive over multiple clamitwns or periodic condition changes.

Bull World Health Organ. guaribs

Tese Doutorado em Zoologia. Members of the genus Alouatta generally have a lifespan ranging from 15 to 20 years.

Therefore, the probability of surviving individuals returning to the susceptible state would be zero. Alcides Pissinatti, Amely B.

IUCN Red List of Threatened Species

They exhibit adaptations for folivory including molars with prominent shearing crests; however, unlike other leaf-eating primates e. International Journal of Clajitans27 4: They are endemic to the Atlantic Forest ecoregion of Brazil and Argentina. Effective Solutions for Howler Conservation.

First, we considered the period of viraemia in Alouatta individuals using data available from the literature, i. There could be a complex interplay between inbreeding and disease Spielman et al. House-to-house human movement drives dengue guariha transmission.

University of Chicago Press; Chicago: Mortality rates of adult howler monkeys are very low Miranda The arboviruses epidemiology and ecology. Mem Inst Oswaldo Cruz.

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Southern brown howler

Kinship and Behaviour in Primates. Males tend to be more red in the south and less red in the north, whereas females range from lighter brown in the south to darker brown in the north.

Chiarello, ; Holzmann, et al. Family Atelidae howlers; spider and woolly monkeys and muriquis In: Social structure of Alouatta guariba clamitans: Folia Primatologica78 4: In a similar fashion, increasing the transmission rate Table III following contact has alouata major impact on the simulated population, leading to a significant reduction in population growth rate Fig.

Does inbreeding and loss of genetic diversity decrease disease resistance? In our metamodel, population viability was predicted using the Vortex, while the disease epidemiological dynamics were simulated using Clamotans. International Journal of Primatology19 3: Revista Brasileira de Zoologia, 22 1: Journal of Primatology72 2: Adams and Kapan were able to show that host behaviour and movement through the mosquito environment can be important and perhaps more crucial to understanding risk and informing mitigation efforts in vector-borne diseases.

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