哀牢山常绿阔叶林鸟类群落初步分析

常绿阔叶林是云南境内重要的自然资源,也是我国亚热带地区最主要的原生植被类型。是森林生态系统的主要研究对象之一。鸟类是森林生态系统的重要组分,为便于自然保护区的规划、管理及对鸟类资源的保护和研究,本文报道有关哀牢山常绿阔叶林鸟类群落动态。 自然环境和工作概况

PRELIMINARY ANALYSIS ON THE BIRD COMMUNITY OF THE EVERGREEN BROADLEAF FORESTS IN THE AILAO MOUNTAIN, YUNNAN PROVINCE

These studies on birds were made at northern Ailao Mountain, Yunnan Province. The main census was carried out in the evergreen broadleaf forests of Xujiaba on the ridge of this mountain between 2400-2700 meter elevation. There are many residents that show seasonal vertical migration at Ailao Mountain. The grand dynamic of bird community shows seasonal replace of some dominate species in the evergreen broadleaf forests of Xujiaba. There are more insectivorous birds in summer, the fruit-eaters and the seed-eaters are dominant in winter. Adaptating to the stereoscopic climate of Ailao Mountain for a long period of time, some residents have gradually shaped as habits of vertical migration. Seasonal changes of food and climate rapidly lead a change in the composition of bird community. This vertical migration of birds at the Ailao Mountain shows that we must protect vegetation on the slope of this mountain, except for protect evergreen broadleaf forests of Xujiaba, Such that will be benefit for protect birds.