Birds play a crucial role in plant reproduction, being one of the most important pollinators and seed dispersers among vertebrates. Here, we aim to study plant-bird interactions in the Cerrado biome of Brazil, highlighting existing mutualistic relations and their role in forest regeneration processes. We sampled plants and recorded feeding events and other interactions between frugivorous birds and tree and shrub species in forest and non-forest environments between May 2015 and July 2016. We registered 74 plant species of 36 genera in 23 families, along with 44 bird species, 63.7% of which were frugivores. The rainy season (September-October) offered the highest resource availability for birds, therefore most feeding events and other interactions also occurred during this period. Approximately 64% of the plants observed at the study site had zoochoric dispersal and more than half of them relied on birds. We found a variety of bird species interacting with plants that supplied their food in urban fragments and highlight the relevance of plant-bird interactions to maintaining urban ecosystems. This result demonstrates the importance of maintaining forested environments, as habitat loss reduces ecological interactions, leaving only a few healthy ecological systems as scattered forest fragments within the urban matrix.

鸟类在植物繁殖中起着至关重要的作用，是脊椎动物中最重要的传粉媒介和种子传播者之一。在这里，我们旨在研究巴西Cerrado生物群落中的植物与鸟类的相互作用，强调现有的相互关系及其在森林再生过程中的作用。在2015年5月至2016年7月之间，我们对植物进行了采样并记录了食肉鸟类与森林和非森林环境中食肉鸟类与树木和灌木物种之间的相互作用。我们登记了23个科的36属74种植物，以及44种鸟类，其中63.7％是节食动物。雨季（9月至10月）为鸟类提供了最高的可用资源，因此在此期间也发生了大多数觅食事件和其他相互作用。在研究地点观察到的植物中约有64％具有人畜共患扩散性，其中一半以上依赖鸟类。我们发现各种各样的鸟类与植物相互作用，从而在城市碎片中提供食物，并强调了植物与鸟类之间的相互作用与维持城市生态系统的相关性。该结果证明了维持森林环境的重要性，因为栖息地的丧失减少了生态相互作用，在城市矩阵内仅留下了一些健康的生态系统作为零散的森林碎片。