A global-level assessment of the effectiveness of protected areas at resisting anthropogenic pressures - PNAS | Biodiversité | Scoop.it

Protected areas (PAs) are a key strategy for conserving nature and halting the loss of biodiversity. Our results show that while many PAs are effective, the large focus on increasing terrestrial coverage toward 17% of the earth surface has led to many PAs failing to stem human pressure. This is particularly the case for nonforested areas, which have not been assessed in previous analysis. Thus, we show that relying only on studies of remote-sensed forest cover can produce a biased picture of the effectiveness of PAs. Moving forward beyond the current biodiversity targets, there is a need to ensure that quality rather than quantity is better integrated and measured.