Although the species is widely distributed in tropical and subtropical regions, it has a special habitat requirement and in recent years its distribution area and population size are decreasing.
Although the species is widely distributed in tropical and subtropical regions, it has a special habitat requirement and in recent years its distribution area and population size are decreasing.
本种分布虽广，但其生长环境很特殊，目前在世界各分布区的範围正不断缩小，个体数量亦日趋减少。