The need for land to assign to industry is great in the wintering sites in Taiwan, whereas those in Vietnam are being converted for shrimp breeding, though they are within a reserve subject to the Ramsar Convention.
Behovet for arealer til industriformål er stort på overvintringsstederne i Taiwan, mens pladserne i Vietnam omdannes til rejeopdræt, selv om de befinder sig midt i et område under Ramsar-konventionen.