This Plos One article compiled a globally-representative database of visits to Protected Areas (PAs) and built region-specific models predicting visit rates from PA size, local population size, remoteness, natural attractiveness, and national income to display the high value that PAs provide, and call for its increased investment and preservation.
“Balmford;
2015;
Walk on the Wild Side: Estimating the Global Magnitude of Visits to Protected Areas;
BTRP-ID: 2483″