Their research, published in Science Advances, found that areas with the most deforestation saw the steepest decline in animal populations. The four areas in the study with the most human activity saw two-and-a-half times more animal displacement than the six with the least amount of human activity.
the picture is much more complicated. Efforts to curb poaching and restore forests are often strongest in national parks near human settlements, and that’s exactly where researchers saw increased animal populations.
The study doesn’t present a universal trend. In fact, researchers found a different mix of animal species in every forest they studied. That makes it hard to form a conservation strategy that’s beneficial overall.