Glossy privet (Ligustrum lucidum) is an aggressive invasive plant that replaces native forests and forms dense stands without understory in central Argentina. However, the consequences of these changes in terms of vegetation structure and composition in bird communities are unknown. Our goal was to understand how the effects of glossy privet invasion-induced habitat changes vary among bird species that differ in resource requirements (e.g., fruit supply, vegetation structure) and how these responses may in turn interact with the invasion process. We compared the avian–habitat relationships among forest patches with different invasion conditions (Serrano native forest, mixed forest and glossy privet forest) using a landscape approach. We found that bird richness was substantially lower in glossy privet forests, with up to 37% loss of bird species. Bird assemblages in invaded habitats changed, with an increase in the prevalence of bird species that feed on glossy privet, particularly during the cold season, when Serrano forest plants do not fruit. Our findings show that the loss of bird diversity and structural assemblage simplification were directly related to the loss of structural complexity caused by the invasion of glossy privet. The increased abundance of birds feeding on glossy privet contributed to the spread of this plant. Given the probable continued expansion of glossy privet and its resistance to control, the persistence of diverse native bird and plant communities in areas subject to invasion by this plant species is at risk.

有光泽的女贞（女贞））是一种具侵略性的入侵植物，它将取代原始森林，并形成茂密的林分，而阿根廷中部没有林下植被。但是，这些变化对鸟类群落的植被结构和组成的影响尚不清楚。我们的目标是了解在资源需求（例如水果供应，植被结构）不同的鸟类之间，光亮的女贞入侵所引起的生境变化的影响是如何变化的，以及这些反应又如何与入侵过程相互作用。我们使用景观方法比较了具有不同入侵条件（塞拉诺原生林，混交林和有光泽的女贞林）的森林斑块之间的鸟类-栖息地关系。我们发现，在光秃的私有森林中，鸟类的丰富度要低得多，鸟类物种损失高达37％。入侵生境中的鸟类组成发生了变化，以有光泽的女贞为食的鸟类的流行率增加了，特别是在塞拉诺森林植物没有结实的寒冷季节。我们的发现表明，鸟类多样性的丧失和结构组合的简化与有光泽的女贞子的入侵造成的结构复杂性的丧失直接相关。以有光泽的女贞为食的鸟类数量的增加促进了这种植物的传播。鉴于有光泽的女贞可能会继续扩张，并且其对控制的抵抗力也将受到这种植物物种入侵的地区内各种鸟类和植物群落的持久性的威胁。当塞拉诺森林植物没有结果时。我们的发现表明，鸟类多样性的丧失和结构组合的简化与有光泽的女贞子的入侵造成的结构复杂性的丧失直接相关。以有光泽的女贞为食的鸟类数量的增加促进了这种植物的传播。鉴于有光泽的女贞可能会继续扩张，并且其对控制的抵抗力也将受到这种植物物种入侵的地区内各种鸟类和植物群落的持久性的威胁。当塞拉诺森林植物没有结果时。我们的发现表明，鸟类多样性的丧失和结构组合的简化与有光泽的女贞子的入侵造成的结构复杂性的丧失直接相关。以有光泽的女贞为食的鸟类数量的增加促进了这种植物的传播。鉴于有光泽的女贞可能会继续扩张，并且其对控制的抵抗力也将受到这种植物物种入侵的地区内各种鸟类和植物群落的持久性的威胁。