Urbanization drives dietary specialization in insectivorous bird communities: insights from a multi-prey cafeteria experiment monitored by innovative cameras
该研究通过蒙特利尔的城市化梯度实验发现,尽管城市化导致鸟类多样性下降和食性趋同,但局部植被覆盖和树木多样性能有效缓冲这一影响,并驱动食虫鸟类基于营养需求主动选择猎物,从而在食物资源匮乏的环境中维持关键的昆虫取食功能。