Two global analyses of human population growth near protected areas seek to go beyond case studies to generalize the impact human populations have on nearby protected areas and rural development. Answering these questions is important for both human welfare and biodiversity conservation. However, as author of one of those studies, I would argue that human migrations operate at multiple spatial and temporal scales, ensuring that any hope for a globally coherent signal is premature at best or misdirected at worst.
Joppa, Lucas. "Population Change in and around Protected Areas." Journal of Ecological Anthropology 15, no. 1 (2012): 58-64.
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