Journal Article Maxent Maxent软件 Research Support, Non-U.S. Gov't biodiversity conservation bird strikes ciencia comunitaria colisiones con ventanas community science degazettement downgrade downsize ecología urbana golpes de aves land use change national park nature reserve protected area downgrading, downsizing and degazettement systematic conservation planning urban ecology urbanización urbanization window collisions 城市化 城市生态学 窗户碰撞 群落科学 鸟类撞击