Purple crow butterfly is a common butterfly species in Kenting, and its large population brings forth ecological challenges. In the summer of 2021, a large number of newly-emerged butterflies flew over the roads, which led to roadkill mayhem. During the peak season (May-June every year), it is estimated that as many as 1,260 butterflies swarm out of the mountain by the Maanshan Nuclear Power Plant every minute and fly over the South Bay section of the Provincial Highway 26. The high density of burny vines provides a rich source of food for the larvae, making it a breeding ground for the butterflies.

The installation of butterfly protection nets on the South Bay section of the Provincial Highway 26 is the first step of the conservation efforts of both sides. This initiative echoes the international conservation trend of other effective area-based conservation measures (OECM), and is also in line with the international conservation goal of protecting 30% of the landmass by 2030 as prescribed in the UN Kunming-Montréal Global Biodiversity Framework. This demonstrates Taiwan’s concrete response to the conservation of global biodiversity.