Rapid urban growth poses the global challenge of mitigating urbanization impacts on biodiversity. The amount and spatial arrangement of vegetation could help managers and urban planners improve habitat conditions for fauna; however, whether aggregated patterns of trees and shrubs promote greater diversity of wildlife in urban areas remains poorly understood. To provide empirical evidence to help planning and management of urban vegetation for native fauna, we evaluated the influence of amount and spatial arrangement of woody vegetation cover on species diversity, richness and abundance of native birds in a growing city located in a biodiversity hotspot. We first mapped woody vegetation cover at a high spatial resolution using satellite images (WorldView-2, 0.45 m resolution) in the city of Santiago, Chile. Then, we performed a stratified random sampling approach to select 118 urban landscapes (1 km² size) with different amounts and aggregation of woody cover. All selected urban landscapes were surveyed for birds during reproductive and non-reproductive seasons. We found the amount of woody cover positively influenced native birds, including different diet guilds. Species diversity, richness and abundance of all native, insectivorous and omnivorous birds, and the abundance of granivorous birds increased with the amount of woody cover in the urban landscape. Contrary to our hypothesis, spatial aggregation of woody cover exhibited mainly no-effect or negative effects on native birds. Our findings demonstrate prevailing positive effects of the amount of woody cover on native birds, and mostly no benefit of aggregation at 1 km² scale. Therefore, both scattered and aggregated trees and shrubs contributed to support native birds in the city. Targeting high levels of woody cover, planting and preserving trees and shrubs (regardless of whether they aggregate or scatter across the urban landscape), will promote greater native bird diversity, mitigate negative impacts of urbanization on local birds, and help restore people-nature interactions in cities.

快速的城市增长带来了减轻城市化对生物多样性影响的全球挑战。植被的数量和空间安排可帮助管理人员和城市规划人员改善动物区系的栖息条件；然而，树和灌木的聚集模式是否能促进城市地区野生动植物的多样性仍然知之甚少。为了提供经验证据以帮助规划和管理本地动物的城市植被，我们评估了生物多样性热点地区一个生长城市中木本植被覆盖的数量和空间布局对物种多样性，本地鸟类的丰富度和丰富度的影响。我们首先使用智利圣地亚哥市的卫星图像（WorldView-2，0.45 m分辨率）以高空间分辨率绘制了木质植被覆盖图。然后，²尺寸），并带有不同数量的木质覆盖物。在生殖和非生殖季节对所有选定的城市景观进行了鸟类调查。我们发现木质覆盖物的数量受到了积极影响，包括不同的饮食行会。所有城市，食虫性和杂食性鸟类的物种多样性，丰富度和丰度都随着城市景观中木本植物覆盖量的增加而增加。与我们的假设相反，木质覆盖物的空间聚集主要表现为对原生鸟类没有影响或负面影响。我们的发现表明，木质覆盖物的数量对本地鸟类具有普遍的积极影响，并且在1 km ^2时几乎没有聚集的好处规模。因此，零散的和聚集的树木和灌木都有助于养活城市中的本地鸟类。针对高水平的木本植物，种植和保存树木和灌木丛（无论它们是否聚集或散布在整个城市景观中），将促进更大的本地鸟类多样性，减轻城市化对当地鸟类的负面影响，并有助于恢复人与自然的互动在城市中。