Mineral licks are essential to many species of mammals and birds in the Amazon rainforest, including the Linnaeus’s two-toed sloth (Choloepus didactylus). While sloths have been recorded at mineral licks, visitation of the two-toed sloth at mineral licks has not been described in detail. We used camera traps to observe sloth visitation at 53 mineral lick sites and generalized linear mixed-effects model to evaluate patterns in visitation. We recorded a visitation rate of 29.39 visits per 100 camera nights, with a peak activity time of 22.00 h. Our model results suggest that sloth visitation at mineral licks may be related to differential habitat selection based in part on elevation, slope, and distance from rivers and streams. This study describes the largest dataset on sloth visitation at mineral licks to date, provides key natural history information on this cryptic mammal, and contributes to our understanding of the ecological importance of mineral licks.

矿物舔对亚马逊雨林中的许多哺乳动物和鸟类至关重要，包括林奈的两趾树懒（Choloepus didactylus ））。虽然在矿物舔舐处记录了树懒，但尚未详细描述在矿物舔舐处发现两趾树懒的情况。我们使用相机陷阱来观察 53 个矿物舔站点的树懒访问，并使用广义线性混合效应模型来评估访问模式。我们记录的访问率为每 100 个摄像机之夜 29.39 次访问，峰值活动时间为 22.00 小时。我们的模型结果表明，在矿物舔舐处的树懒访问可能与部分基于海拔、坡度以及与河流和溪流的距离的不同栖息地选择有关。这项研究描述了迄今为止最大的矿物舔树懒访问数据集，提供了有关这种神秘哺乳动物的关键自然历史信息，并有助于我们了解矿物舔的生态重要性。