Global protected areas seem insufficient to safeguard half of the world's mammals from human-induced extinction
Protected areas (PAs) are a cornerstone of global conservation and central to international plans to minimize global extinctions. During the coming century, global ecosystem destruction and fragmentation associated with increased human population and economic activity could make the long-term survival of most terrestrial vertebrates even be more dependent on PAs. However, the capacity of the current global PA network to sustain species for the long term is unknown. Here, we explore this question for all non-volant terrestrial mammals for which we found sufficient data,∼4,000 species.