Forest fragmentation and deforestation are major threats to primates at a global scale. The survival of primates in forest fragments largely depends on their behavioral and dietary flexibility, as well as their ability to use a modified matrix in anthropogenic landscapes, hence the importance of determining these ecological parameters in habitats with strong anthropic interventions. This paper aims to describe the activity budget and diet of two groups of the Colombian night monkey (Aotus lemurinus) and to estimate their home range in two peri-urban forest fragments in the city of Manizales, Colombia. We combined scan sampling and handheld GPS fixes in order to determine the behavioral, dietary and spatial patterns of the study groups. Night monkeys spent most of their time resting and traveling and were mainly frugivorous relying on at least 26 plant species in their diet. The most consumed plants included Persea americana, Cecropia angustifolia, Musa x paradisiaca, Cecropia telenitida, and Croton cf. mutisianus. Two of these plants are cultivated species and can provide important resources for populations in small forest fragments. Home range sizes were estimated at 1.7 to 1.8 hectares, using a grid count method. Our results suggest the potential adaptability that these primates have when exposed to anthropogenic habitat disturbances and habitat degradation. Nonetheless, future studies should evaluate the influence of demographic factors and resource availability on the behavioral, dietary and spatial patterns of A. lemurinus in peri-urban forests, in order to further understand their ability to cope with the pervasive processes of habitat fragmentation in the northern Andes.

森林破碎化和森林砍伐是全球范围内灵长类动物面临的主要威胁。灵长类动物在森林碎片中的生存在很大程度上取决于它们的行为和饮食灵活性，以及​​它们在人为景观中使用改良基质的能力，因此在具有强烈人为干预的栖息地中确定这些生态参数的重要性。本文旨在描述两组哥伦比亚夜猴（Aotus lemurinus）的活动预算和饮食。) 并估计他们在哥伦比亚马尼萨莱斯市的两个城郊森林碎片中的栖息地。我们将扫描采样和手持 GPS 定位相结合，以确定研究组的行为、饮食和空间模式。夜猴大部分时间都在休息和旅行，主要以食果为主，它们的饮食中至少有 26 种植物。消费量最大的植物包括Persea americana、Cecropia angustifolia、Musa x paradisiaca、Cecropia telenitida和Croton cf。穆蒂西亚努斯. 其中两种植物是栽培种，可为小片森林中的种群提供重要资源。使用网格计数方法估计家庭范围的大小为 1.7 到 1.8 公顷。我们的研究结果表明，这些灵长类动物在暴露于人为栖息地干扰和栖息地退化时具有潜在的适应性。尽管如此，未来的研究应该评估人口因素和资源可用性对城郊森林中A. lemurinus的行为、饮食和空间模式的影响，以进一步了解它们应对普遍存在的栖息地破碎化过程的能力。安第斯山脉北部。