Prioritize diversity or declining species? Trade-offs and synergies in spatial planning for the conservation of migratory birds in the face of land cover change

Stemming biodiversity loss requires strategic conservation guided by well articulated targets, whether they be proactive (e.g., protect biodiverse areas) or reactive (e.g., protect threatened species). Both types of targets can be effective, but there are trade-offs, especially for broadly distributed taxa such as migratory species, a group for which conservation has been challenged by limited knowledge of distributions throughout the annual...