With long-term observation, wildlife data can be collected for each area. These results can then be matched with satellite photos, and analysis of local vegetation and the animals 'eating habits, to estimate changes in the animal populations. These estimates will govern hunting quotas, so that "the animals will not be carelessly hunted out of existence."
如此長期監測，廣為收集各獵區的動物資料，再配合人造衛星拍攝的山系、河流，加上當地植被情況與動物喜愛的食物進行分析，可以判斷出山區動物數量變化，據此調整狩獵數量，「不會不小心把動物抓光。」