Issue:ISSN 2095-1353
CN 11-6020/Q
Director:Chinese Academy of Sciences
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2012年49 No.5
The spatial distribution and association patterns of female and male
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Key Words：Omocesstus haemorrhoidalis，spatial pattern，Qilian Mountain，geostatistic，association
Abstract： The spatial distribution pattern dynamics and spatial association of female and male Omocesstus haemorrhoidalis (Charpentie)were investigated in the upper reaches of the Shiyanghe river，Qilian Mountain，from June 7 to October 17，2010． The results show that the semi-variable function of female and male O． haemorrhoidalis can be described by both Spherical and Gaussian models． The spatial distribution pattern of both females and males was aggregative and the change in strength of the female was similar to that of the male． The spatial distribution pattern of this grasshopper had a dynamic trend of diffusion-aggregation-diffusion-aggregation，corresponding to the grasshopper developmental cycle，but the dynamic intensity of the female was stronger than that of the male from July to August． The fuzzy proximity between females and males was within a range of 0. 53 － 0. 78，implying close synchronization of the sexes in spatial distribution pattern dynamics．