Diet and Activity Patterns of Black Howler Monkeys Alouatta Caraya (Humboldt, 1812, Primates, Atelidae) in Ecotone Cerrado-Pantanal in the Left Bank of Aquidauana River, Mato Grosso do Sul, Brazil

A study on black howler monkeys (Alouatta caraya) in the Pantanal Conservation Area revealed unique dietary and activity patterns influenced by the ecotone Cerrado-Pantanal environment. The research found that while resting behavior aligned with genus norms (64.7%), the diet showed higher flower consumption (14.8%) compared to southern populations, with significant seasonal variations—flowers peaking in the dry season (17.8%) and fruits in the rainy season (12.9%). Adults rested more but engaged less in feeding, travel, or social interactions than immature individuals, suggesting group composition impacts behavior. These findings highlight marginal species-specific patterns, likely due to ecological differences in this northern region, underscoring the need for further studies to inform conservation strategies.

Rímoli, J., Nantes, R. d. S., & Lázaro Júnior, A. É. L. J. (2012). DIET AND ACTIVITY PATTERNS OF BLACK HOWLER MONKEYS ALOUATTA CARAYA (HUMBOLDT, 1812, PRIMATES, ATELIDAE) IN ECOTONE CERRADO-PANTANAL IN THE LEFT BANK OF AQUIDAUANA RIVER, MATO GROSSO DO SUL, BRAZIL. Oecologia Australis, 16(04), 933–948. https://doi.org/10.4257/oeco.2012.1604.15