长爪沙鼠寄生蚤指数和气象因子关系的研究

STUDIES ON RELATIONSHIPS AMONG PARASITIC FLEA INDEX OF MERIONES UNGUICULATUS AND METEOROLOGICAL FACTORS

根据内蒙古自治区土默特平原１９８３ ～１９８５ 年长爪沙鼠 Ｍｅｒｉｏｎｅｓ ｕｎｇｕｉｃｕｌａｔｕｓ 巢蚤、体蚤、洞干蚤指数和６ 项气象资料进行分析， 得到如下结果。① 共获蚤１１ 种， 其中秃病蚤蒙冀亚种 Ｎｏｓｏｐｓｙｌｌｕｓ ｌａｅｖｉｃｅｐｓ ｋｕｚｅｎｋｏｖｉ （ ６７５０ ％ ） 是 优 势 种， 二 齿 新 蚤 Ｎｅｏｐｓｙｌｌａ ｂｉｄｅｎｔａｔｉｆｏｒ ｍｉｓ（２２６５ ％ ） 为次优势种。②３ 种蚤指数的均值差异显著 （ Ｐ＜ ００００１） 。③ 体蚤与洞干蚤指数相关显著 （ Ｐ＜ ００５） ， 模型为 （ 洞干蚤指数） ＝ ０００４９ ＋ ００２４８ （ 体蚤指数） ， 巢蚤与体蚤、巢蚤与洞干蚤指数的相关不显著 （ Ｐ＞ ０２５） 。④ 沙鼠密度与３ 种蚤指数的相关均不显著 （ Ｐ＞ ０１０） 。⑤在巢蚤中， 月温度是影响巢秃病蚤唯一的气象因子 （ Ｐ＜ ００５） 。⑥ 分别求出鼠体的秃病蚤和同形客蚤指名亚种 Ｘｅｎｏｐｓｙｌｌａ ｃｏｎｆｏｒ ｍｉｓ ｃｏｎｆｏｒ ｍｉｓ 与气象因子的最优回归子集 （ Ｐ＜ ０００３ 、 Ｐ ＜００５） ， 洞干的秃病蚤和二齿新蚤与气象因子的最优回归子集 （ Ｐ＜ ００００７ 、 Ｐ＜ ００１） ， ?

According to the burrow flea index, body flea,burrow track flea of the Meriones unguiculatus and the six meteorological factors in Tumete plain, Inner Mongolia Autonomous Region during 1983～1985,it was found that ① there were eleven flea species, with Nosopsyllus laeviceps kuzenkovi (67 50%) as the dominant species, Neopsylla bidentatiformis (22 65%) came second ; ② the differences of the mean values among the three kinds flea index were significant ( P <0 0001) ; ③ the correlation between the body flea and burrow track was significant ( P <0 05), i e , (burrow track flea index)=0 0049+0 0282(body flea index),the correlations between the burrow flea and the body flea and between the burrow flea and the burrow track flea were not significant ( P >0 25) respectively;④ the correlation between the density of M unguiculatus and the three kinds flea index was not significant ( P >0 10);⑤ the monthly mean temperature was the only meteorological factor affecting the N l kuzenkovi of the burrow flea( P <0 05);⑥the optimum regression subsets of multiple linear regression among the body flea ( N. l. kuzenkovi and Xenopsylla conformis conformis) and the meteorological factors ( P <0 003 and P <0 05),and among the burrow track flea ( N. l. kuzenkovi and N. bidentatiformis ) and the meteorological factors ( P <0 0007 and P <0 01) were conducted , and the monthly evaporation was a main factor affecting the N. l. kuzenkovi of the body flea and the burrow track flea; ⑦ the differences in burrow flea indexes between spring and winter and between summer and winter were significant ( P <0 05), the differences in body flea indexes between spring and winter and between summer and winter were significant ( P <0 05), the differences in burrow track flea indexes between spring and winter, between summer and autumn and between summer and winter were significant ( P <0 05).