Street trees integrate the urban green infrastructure and are important elements for the maintenance of biodiversity, including pollinators. Thus, assessments of the spatiotemporal distribution and composition of these trees can subsidize strategies of conservation for different groups of pollinators in the cities. Here, we evaluated the spatiotemporal distribution of trees attractive to pollinators across the streetscape of a large Brazilian metropolis with more than 2.5 million inhabitants. We used the georeferenced data of ca. 300,000 woody plant individuals cataloged across the streetscape. These plants were characterized according to their geographical origin, flowering season, and the floral visitor groups that are attracted based on a literature survey. We also tested the “luxury effect” hypothesis on the resource availability to pollinators by evaluating the relationship between the average family income of the population and the richness and abundance of trees. We found that the streetscape was characterized by the dominance of a few tree species, with a balanced representation of both native and non-native species. Bees were the most favored group (94.86%) while bats (1.43%) and moths (1.73%) were the least. The potential supply of resources was homogeneous across dry and wet seasons, but the density of trees was reduced in most of the landscape. We found a strong luxury effect since tree richness and abundance were positively related to regions with higher average family income. Our study highlights the need for better planning and management practices of urban green areas to support pollinators more uniformly across streetscapes. This will allow the benefits provided by pollinators to be more evenly shared among residents of urban landscapes.

行道树整合了城市绿色基础设施，是维持包括传粉媒介在内的生物多样性的重要元素。因此，对这些树木的时空分布和组成的评估可以资助城市中不同传粉者群体的保护策略。在这里，我们评估了巴西一个拥有超过 250 万居民的大都市街景中对传粉者具有吸引力的树木的时空分布。我们使用了 ca 的地理参考数据。300,000 株木本植物个体在街景中编目。根据文献调查，这些植物根据其地理来源、开花季节和吸引的花卉访客群体进行了表征。我们还通过评估人口的平均家庭收入与树木的丰富程度之间的关系，检验了传粉媒介资源可用性的“奢侈效应”假设。我们发现街景的特点是少数树种占主导地位，本地和非本地树种的比例均衡。蜜蜂是最受欢迎的群体（94.86%），而蝙蝠（1.43%）和飞蛾（1.73%）最少。旱季和雨季的潜在资源供应是均匀的，但大部分景观中的树木密度都降低了。我们发现了强烈的奢侈效应，因为树木的丰富程度与平均家庭收入较高的地区呈正相关。我们的研究强调需要更好地规划和管理城市绿地，以更均匀地支持街景中的传粉者。这将使授粉媒介提供的好处能够在城市景观的居民之间更平均地分享。