![]() Critical information gaps were identified and the group developed a list of prioritized objectives and actions to improve long-term persistence of the species in Argentina. Participants explored the dynamics of yellow fever outbreaks and their impact on howler mortality using software for population viability analysis ( Vortex) and disease epidemiology ( Outbreak), and concluded that yellow fever was the biggest threat to the species. Eleven specialists in howler biology and disease ecology gathered to conduct a threat analysis for brown howlers in Argentina. Due to their high susceptibility to yellow fever, howler monkeys are considered “disease sentinels”: important indicators for the arrival of an outbreak in an area that can lead health officials to take action.ĬBSG was invited to facilitate and create population models for the Brown Howler Monkey Conservation Workshop held in Andresito and Puerto Iguazú, Argentina. In 2008-2009, severe yellow fever outbreaks decimated brown howler populations in southern Brazil and northern Argentina, driving the already small population in Misiones Province to the verge of extinction. However, the brown howler ( Alouatta guariba clamitans) was reclassified in 2012 from Endangered to Critically Endangered in Argentina. ![]() Howlers are classified globally as Least Concern by the IUCN due to the species’ presence in most of Brazil’s Atlantic Forest conservation units. The howler monkey ( Alouatta guariba) is one of the endemic primate species of South America’s Atlantic Forest. Analyzing Outbreaks in Brown Howler PopulationsĬBSG was invited to facilitate and create population models for the Brown Howler Monkey Conservation Workshop, where participants explored the dynamics of yellow fever outbreaks and their impact on howler mortality.
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