Results: 15

Spatial and temporal dynamics of the primate community in a regenerating forest of the Manu Biosphere Reserve, Peru

Rev. biol. trop; 72 (1), 2024
Abstract Introduction: Amazonian forests with varying degrees of anthropogenic disturbance in the process of natural regeneration harbour many sympatric primate species. However, studies on their usage by primates are still lacking. Objective: To comprehensively study the spatial and temporal dynamic...

Molecular detection of Apicomplexa protozoa in tissues from Alouatta guariba clamitans

Pesqui. vet. bras; 41 (), 2021
The brown howler monkey (Alouatta guariba clamitans) is a primate species widely distributed in South America. Infections by protozoa are common in primates. However, studies on protozoa in primates in Brazil are scarce, so the goal of this study was to investigate DNA from the apicomplexan protozoa Neos...

Anatomia do sistema reprodutor feminino de Alouatta belzebul (Linnaeus, 1766)

O conhecimento da anatomia de qualquer animal silvestre é de fundamental importância para sua preservação e proteção. Neste contexto, o presente estudo objetivou descrever a morfologia do sistema reprodutor feminino de Alouatta belzebul. Foram utilizados seis espécimes de A. belzebul, fêmeas, adu...

Vascularization of the Alouatta belzebul brain base

Pesqui. vet. bras; 40 (4), 2020
We studied the arterial circle in the brain of five specimens of the Alouatta belzebul primate. The material had the arterial system perfused (water at 40°C), injected with stained latex (Neoprene 650), fixed in aqueous formaldehyde solution (10%) and dissected for vessel verification. The arterial circ...

Plasmodium infection and its association with biochemical and haematological parameters in free-living Alouatta guariba clamitans (Cabrera, 1940) (Primates: Atelidae) in Southern Brazil

Mem. Inst. Oswaldo Cruz; 114 (), 2019
BACKGROUND The influence of Plasmodium spp. infection in the health of Southern brown howler monkey, Alouatta guariba clamitans, the main reservoir of malaria in the Atlantic Forest, is still unknown. OBJECTIVES The aim of this study was to investigate the positivity rate of Plasmodium infection in fr...

Combination of surveillance tools reveals that Yellow Fever virus can remain in the same Atlantic Forest area at least for three transmission seasons

Mem. Inst. Oswaldo Cruz; 114 (), 2019
BACKGROUND In Brazil, the Yellow Fever virus (YFV) is endemic in the Amazon, from where it eventually expands into epidemic waves. Coastal south-eastern (SE) Brazil, which has been a YFV-free region for eight decades, has reported a severe sylvatic outbreak since 2016. The virus spread from the north tow...

Genome analysis of yellow fever virus of the ongoing outbreak in Brazil reveals polymorphisms

Mem. Inst. Oswaldo Cruz; 112 (6), 2017
The current yellow fever outbreak in Brazil is the most severe one in the country in recent times. It has rapidly spread to areas where YF virus (YFV) activity has not been observed for more than 70 years and vaccine coverage is almost null. Here, we sequenced the whole YFV genome of two naturally infect...

Frequency of histopathological changes in Howler monkeys ( Alouatta sp. ) naturally infected with yellow fever virus in Brazil

Abstract: INTRODUCTION: Due to the importance that Howler monkeys have on the yellow fever (YF) epidemiological sylvatic cycle in Brazil, more accurate morphological diagnostic criteria needs to be established, especially considering the differences that may exist between the genera of Brazilian non-huma...

Aspectos microscópicos do esôfago do Bugio ruivo (Alouatta fusca clamitans)

O Bugio Ruivo (Alouatta fusca clamitans) é uma das três espécies de primatas encontradas no Estado do Rio Grande do Sul. Sua dieta compõem-se de frutos, folhas, sementes e flores. Este trabalho visa caracterizar a composição histológica do terço final do esôfago em Bugio Ruivo. Para a realizaç�...