摘要
1998— 1999年 ,对我国北方干旱、半干旱区几种典型生境 (腾格里沙漠生态系统、内蒙古典型草原、科尔沁沙地 )的蛴螬群落作了比较研究 ,结果表明 :东方绢金龟 (SericaorientalisMotschulsky)在 3个采样区的优势度均为最高 ,3个采样区蛴螬群落的次优势种相互间有差别 ,内蒙古典型草原多为黑皱鳃金龟 (Trematodestenebrioides(Pallas) )和弓斑常丽金龟 (Cyrioperthaarcuata (Gebler) ) ,科尔沁沙地为黄褐异丽金龟 (AnomalaexoletaFalder mann)和灰胸突鳃金龟 (HoplosternusincanusOtschulsky) ,腾格里沙漠生态系统为黄褐异丽金龟 (AnomalaexoletaFaldermann)。腾格里沙漠生态系统蛴螬群落组成单调、密度极低是不言而喻的 ,科尔沁沙地蛴螬群落密度不如内蒙古典型草原高 ,多样性指数是最高的。就 3个样区蛴螬群落的相似性而言 。
From 1998\_1999,we studied the features of Scarabaeoidea larvae community in dif ferent habitats. The results showed that: \%Serica orientalis\% Motschulsky is t he dominant species in all three sites. For different habitats, they have differ ent common species. In Inner Mongolia typical steppe, they are \%Trematodes tene brioides\% (Pallas) and \%Cyriopertha arcuata \%(Gebler). But for Horqin sandy l and and Tenger desert ecosystem, they are \%Anomala exoleta\% Faldermann, \%Hopl osternus incanus\% Motschulsky and \%Anomala exoleta\% Faldermann. From the res ults, we can essentially conclude that the Scarabaeoidea larvae community is ver y simple in Tenger desert ecosystem. In Horqin sandy land, the density of Scarab aeoidea larvae community is not higher than that of in Inner Mongolia typical steppe, but the number of species is higher than that in relative Inner Mongolia typical steppe. And the biodiversity indexes of Scarabaeoidea larvae community are highest for all three sites. Between Horqin sandy land and Inner Mongolia typical steppe, t he similarity index of Scarabaeoidea larvae community is higher than that of bet ween Horqin sandy land and Tenger desert ecosystem.
出处
《中国沙漠》
CSCD
北大核心
2001年第3期250-253,共4页
Journal of Desert Research
基金
中国科学院沙坡头沙漠试验研究站基金项目 (2 0 0 0 17)
奈曼沙漠化研究站
内蒙古草原生态系统定位研究站基金项目资助
