CAJ | 학술논문

鸟类对山地环境的变化敏感，对森林结构和食物资源的反应明显,我们在西双版纳人为影响的热带山林,进一步研究了长果桑果期摄食鸟类种群结构,对人类影响下森林生态系统动植关系及其动态变化有更清楚的了解；一些地区特有的鸟类种和亚种、大中型非雀形目鸟类、以及人们需要重点保护的鸟类，已经随着植被结构的变化和食源的减少而失去了。若不尽早消除干扰、改善植被结构，情况还会越来越严重。只有保护森林自然结构和自然更新，停止对森林结构的破坏性干扰，才可能有效保护鸟类多样性。
조류대산지배경적변화민감，대삼림결구화식물자원적반응명현,아문재서쌍판납인위영향적열대산림,진일보연구료장과상과기섭식조류충군결구,대인류영향하삼림생태계통동식관계급기동태변화유경청초적료해；일사지구특유적조류충화아충、대중형비작형목조류、이급인문수요중점보호적조류，이경수착식피결구적변화화식원적감소이실거료。약불진조소제간우、개선식피결구，정황환회월래월엄중。지유보호삼림자연결구화자연경신，정지대삼림결구적파배성간우，재가능유효보호조류다양성。
A gap in current knowledge is in the ways of conver sion and recovery of mountain ecosystem, however, mobile species such as birds c an help us to know the basic dynamics of the natural processes. This work was th rough a comparative study on Morus mocroura and bird divers ity in Menglun and Nangong Mountain of Xishuangbanna to understand the dynamics. Data were analyzed using the Shannon-Wiener function formula and overlap functi on formula. 　　This field work was carried out during the ripe period of polymeric berries of Morus mocroura which were eaten by birds. The sizes of the fragrant polymeric berri es are suitable for different gape width that attract many species of birds, and these birds easily swallow the berries in different ways. There is a harmonious relationship between birds and food resources to coexist, however it is changin g because of the influence of human in some areas of Xishuangbanna. Through a c omparativ e study in Menglun and Nangong Mountain, concerning forest plots, the diversity( H and Hmax) of birds, and foraging ratio is higher at the Nangong Mountain, the overlap of the foraging birds and their competition is higher in Menglun forest plots. There are 35 species including 23 species and subspecies of native birds , 10 species of special protected birds have been recorded in Nangong Mountain, only 20 species including 12 species and subspecies of native birds in Menglun f orest plots. Many species of birds are quickly disappearing with the destruction of primary frest ecosystem in Menglun mountain region. 　　Biodiversity conservation should be put into ecosystem as a whole. If we do n ot study mountain ecosystem soon, we shall face a grave problem with a poorer en vironment and living condition. It is essential that restoration and conservatio n should be undertaken before substantial losses of species have occurred. The p roblem of bird diversity reducing should be solved by applying a system matical approach combining ecological system with social system thus to understand the r elationships between the natural components and human to environmental managemen t.