Canopy of forest ecosystems has been recognized as a habitat that supports a wide variety of plants, vertebrates, invertebrates, and microbes. Within the invertebrate group, arthropods are characterized by their great abundance, diversity, and functional importance. Particularly in temperate forests, species of the genus Quercus (oaks) are one of the most important tree canopy groups, for its diversity and dominance. Different studies have shown that the oak canopy contains a high diversity of arthropods suggesting their importance as habitat for this group of organisms. In this review, we investigated the factors that determine the establishment, organization, and maintenance of arthropod communities in the oak canopy. In general, it was found that there is a lack of literature that addresses the study of oak canopy arthropod communities. Also, the following patterns were found: (a) the research has covered a wide variety of topics; however, there are differences in the depth to which each topic has been analyzed, (b) there are ambiguous criteria to define the structure of the canopy, (c) groups with different habitat preferences belonging to different guilds and uneven development stages have been studied, avoiding generalizations about patterns found, (d) the standardization in sampling techniques and collection has been difficult, (e) bias exists towards the study of phytophagous insects belonging to the Coleoptera, Hymenoptera, and Lepidoptera orders, and (f) there are few studies in other groups of arthropods, for example, acorn borers, whose activity has an impact on the fitness and dispersion of the host plants. Finally, we propose that the detection and study of patterns in oak canopy communities can be of great value to propose management and conservation strategies in these forests.

中文翻译：

---

橡树冠层节肢动物群落：哪些因素塑造了它的结构？

森林生态系统的冠层已被公认为是支持各种植物、脊椎动物、无脊椎动物和微生物的栖息地。在无脊椎动物组中，节肢动物的特点是它们的丰富度、多样性和功能重要性。特别是在温带森林中，栎属（橡树）的物种因其多样性和优势而成为最重要的树冠群之一。不同的研究表明，橡树冠层包含高度多样性的节肢动物，表明它们作为这组生物的栖息地的重要性。在这篇综述中，我们调查了决定橡树冠层节肢动物群落建立、组织和维持的因素。总的来说，发现缺乏解决橡树冠层节肢动物群落研究的文献。还，发现了以下模式： (a) 研究涵盖了广泛的主题；然而，每个主题的分析深度存在差异，(b) 定义树冠结构的标准不明确，(c) 研究了属于不同行会和不均衡发展阶段的具有不同栖息地偏好的群体，避免对发现的模式进行概括，(d) 采样技术和收集的标准化一直很困难，(e) 对属于鞘翅目、膜翅目和鳞翅目目的植食性昆虫的研究存在偏见，并且 (f) 很少有在其他节肢动物群中进行的研究，例如橡子蛀虫，其活动对寄主植物的适应性和分散有影响。最后，