The butterfly diversity in different habitats of the Maijishan of Gansu Provi

nce was surveyed from 2003 to 2004 Three habitat types were c

lassified based on altitude, climate, soil and vegetation: hilly cultivated land

，forest and bare rock. Of the total collected 950 specimens, 64 species belongi

ng to 43 genera and 8 families were identified. Species richness, species compos

ition similarity (Jaccard index) and species diversity index (ShannonWiener in

d

ex, H') were calculated for the three habitat types. The species richness decrea

sed in the following sequence: forest (8835 9), hilly cultivated land (6

144 2), a

nd bare rock (1471 1). On the other hand, the species diversity index decrease

d

in a different sequence: forest (H'=1406 8), bare rock (H'=097

4 6), and hilly cu

ltivated land (H'=0920 1).The butterfly species composition between fo

rest and h

illy cultivated land had the highest similarity (Jaccard index=0222 1), wi

th the

 second highest similarity between hilly cultivated land and bare rock (Jaccard

index=0086 9), and the lowest similarity between forest and bare rock (Jac

card index=0065 6).

于2003～2004年对麦积山地区不同生境类型中蝴蝶多样性进行调查研究。依据海拔高度、气候、土壤和植被的不同将该地区的蝴蝶生境划分为3种类型:林缘山地、森林林地、裸岩。共收集蝴蝶3 950只,隶属8科43属64种。计算了3种生境类型中蝶类物种丰富度、相似性系数、多样性指数。其中, 蝴蝶物种丰富度由大到小为森林林地(8835 9)>林缘山地(6144 2)>裸岩(1471 1), 物种多样性指数由大到小为森林林地(H'=1406 8)>裸岩(H'=0974 6)

>林缘山地(H'=0920 1);森林林地和林缘山地的相似性系数最高(0222 1),其次是林缘山地和裸岩(0086 9), 森林林地和裸岩相似性系数最低(0065 6)。