Aspects of the feeding ecology of the threatened maned sloth (Bradypus torquatus Illiger, 1811) are poorly understood. Here, we evaluate the diet composition and the influence of leaf chemical compounds on the consumption of plant species by 10 radio-tracked individuals in southern Bahia and construct a list of plants consumed by the species based on our data and the available literature. We confirmed that the maned sloth is a strict folivore and consumes predominantly young leaves. We reported the consumption of 39 species, from 32 genera and 20 families of plants in southern Bahia, and provide an updated list of 68 species so far reported as consumed by maned sloths. The most frequently consumed species in southern Bahia belong to the genera Emmotum, Inga, Ficus and Brosimum, totalling almost half of the maned sloth's diet. Nevertheless, only Ficus spp. were widely consumed by maned sloths elsewhere. The low consumption of Cecropia spp. suggests that maned sloth's diet is not strongly linked to these taxa as reported for other Bradypus. None of the evaluated chemical compounds had a significant effect on the choice of plants consumed. Altogether, the available data indicated that the maned sloth is a generalist at the species level. In addition to morphological and physiological adaptations, it deals with the challenges of a foliage-based diet by selecting young leaves. Our update on maned sloth's diet may be used to overcome the difficulties of keeping and reproducing them in captivity and support actions that aim to recover their habitat.

中文翻译：

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鬃毛树懒 (Bradypus torquatus) 的摄食生态学：了解饮食组成和偏好，以及未来研究的前景

人们对受威胁的鬃毛树懒（Bradypus torquatus Illiger，1811）的摄食生态学方面了解甚少。在这里，我们评估了巴伊亚南部 10 名无线电追踪个体的饮食组成和叶化合物对植物物种消耗的影响，并根据我们的数据和现有文献构建了该物种消耗的植物列表。我们证实鬃毛树懒是一种严格的食叶动物，主要以幼叶为食。我们报告了巴伊亚南部 32 个属和 20 个植物科的 39 种植物的消费量，并提供了迄今为止报告的被鬃树懒消费的 68 种植物的最新清单。巴伊亚南部最常食用的物种属于Emmotum属、Inga属、Ficus和Brosimum，几乎占鬃树懒饮食的一半。然而，只有榕属。被其他地方的鬃毛树懒广泛食用。Cecropia spp的低消费量。表明鬃毛树懒的饮食与其他Bradypus报道的这些分类群没有密切关系. 评估的化合物都没有对所消耗植物的选择产生显着影响。总而言之，现有数据表明鬃毛树懒是物种层面的多面手。除了形态和生理适应之外，它还通过选择幼叶来应对以树叶为基础的饮食的挑战。我们对鬃毛树懒饮食的更新可用于克服圈养饲养和繁殖它们的困难，并支持旨在恢复其栖息地的行动。