
It’s easy to assume protected areas such as national parks conserve wildlife – that seems obvious. But what is the proof? And how does park success vary across different ecosystems – in deserts versus tropical rainforests, or wetlands versus oceans?
While we can use satellite imagery to measure the effect of protected areas in reducing human impacts such as logging, you can’t see the animals from space. In particularly dense tropical rainforests, it was nearly impossible to accurately monitor wildlife, until remotely triggered camera traps became available in the past decade.