摘要
采用样地调查法探讨滇西北怒山西坡蚂蚁群落特点与物种多样性。该区域是我国蚂蚁区系比较丰富的地区,亚科和属的丰富度比较明显,其物种丰富度具有随海拔升高而递减、从南向北递减的基本规律。蚂蚁的物种丰富度、个体密度和物种多样性主要受小生境积温和森林结构制约,结构良好、积温较高的小生境拥有更高的物种丰富度和物种多样性,积温较高的阳性小生境拥有更高的蚂蚁个体密度。蚂蚁群落的多样性指数、均匀度指数和优势度指数均反映出滇西北怒山西坡具有显著的生境多样性特点,同时也反映出该区域的山体中下部已经受到人类活动的深度干扰。
Ant community and species diversity from west slope of Nushan Mountain in northwestern Yunnan Province were probed by sample plot investigation method. The area is relatively rich in ant fauna in China. It is obviously rich in subfamilies and genera. The richness of species diversity is decreased along with the increment of altitude and from south to north. Species richness, individual density and Shannon -Wiener index are mainly restricted by temperature accumulation of microhabitats and forest structure. The microhabitat with good forest structure and higher temperature accumulation had higher species richness and Shannon -Wiener index. An open habitat with higher temperature accumulation possesses higher individual density. Shannon - Wiener index, Pielou evenness index and Simpson predominant index of the ant communities could well reflect the west slope of Nushan Mountain which was significantly rich in habitat diversity, the middle and lower portions of the slope were deeply disturbed by mankind.
出处
《西南林学院学报》
2009年第3期49-56,共8页
Journal of Southwest Forestry College
基金
国家自然科学基金(30260016,30870333)资助项目
关键词
膜翅目
蚁科
物种多样性
蚂蚁群落
横断山
Hymenoptera
Formicidae
species diversity
ant community
Hengduanshan Mountains
