| infant hybrids in a newly formed mixed-species group of howler monkeys (alouatta guariba clamitans and alouatta caraya) in northeastern argentina. | natural hybridisation between species has been reported in several primate taxa. in the neotropics, there is increasing evidence of this phenomenon in howler monkeys (genus alouatta) in contact zones between species. we describe the first known case of formation of a mixed-species group, and two cases of putative infant hybrids between the brown howler (alouatta guariba clamitans) and the black howler (a. caraya) in misiones, argentina. for 2 years, we followed a group consisting of one adult ma ... | 2008 | 18855099 |
| impact of yellow fever outbreaks on two howler monkey species (alouatta guariba clamitans and a. caraya) in misiones, argentina. | two yellow fever outbreaks (yfos) occurred in northeastern argentina between november 2007 and october 2008, seriously affecting populations of two howler monkey species: the brown howler alouatta guariba clamitans and the black howler alouatta caraya. both howlers live syntopically in el piñalito provincial park, misiones, where four groups (36 individuals) were studied since january 2005. the first dead howlers were found on january 20, 2008, in el piñalito. systematic searches found 14 dead h ... | 2010 | 20095025 |
| squirrel monkey cytomegalovirus antibodies in free-ranging black howler monkeys (alouatta caraya), misiones, argentina. | serum from four black howler monkeys (alouatta caraya) was screened for antibodies to seven viruses by dot immunoassay. cytomegalovirus antibodies were detected in three of four individuals and provide the first evidence of exposure by black howler monkeys to this virus. | 2012 | 22493133 |
| isolation of yellow fever virus from mosquitoes in misiones province, argentina. | yellow fever (yf) is a viral hemorrhagic fever endemic to tropical regions of south america and africa. from 2007 to 2009 an important epidemic/epizootic of yf was detected in different populations of howler monkeys (alouatta species) in misiones, a northeastern argentinian province. yellow fever virus (yfv) infection was researched and documented by laboratory tests in humans and in dead alouatta carayá. the objective of that research was to investigate the circulation of yfv in mosquitoes, whi ... | 2012 | 23025694 |