This monkey is marked by a white nose spot and pale cheek fur on a black face; chestnut fur beneath its tail is another distinctive feature.
Adults have a black face, bluish skin around the eyes, a white spot on the nose and pale cheek fur; the underside of the tail is chestnut-colored.
In Tanzania’s Issa Valley, researchers examined how red-tailed monkeys use riparian forest and miombo woodland. They analyzed behavioral observations collected from 2016 to 2023, estimating core-use areas and comparing them across seasons and years. The work focuses on a landscape where forest and woodland form a mosaic, asking how monkeys move through and feed in the different vegetation types.
Core-area size and seasonal overlap did not differ significantly between the two vegetation types. Feeding on bark, flowers and unripe fruit was associated with greater woodland use, while ripe fruit was associated with forest use. The observations show that the monkeys used both parts of the vegetation mosaic and that feeding context helped explain where they were found.
An extinction-risk assessment has not been added yet.
Red-tailed monkeys used miombo more on days when feeding on bark, flowers and unripe fruit, while ripe fruit was associated with riparian forest use.