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为研究中华稻蝗形态特征与地理特征的关系,选取中华稻蝗体长(LB)、头长(LH)、前胸背板长(LP)、前胸背板宽(WP)、前胸背板侧片长(LLP)、前胸背板侧片高(HLP)、前翅长(LEL)、后足股节长(LF)、后足股节宽(WF)和后足胫节长(LT)等10个性状,采用电子游标卡尺测量其长度进行比较,使用SPSS11.5统计软件进行体长方差分析、各个性状在不同种群间的多重方差分析以及各性状间与海拔高度间的相关性分析。结果显示:9个中华稻蝗种群分为南方组、北方组及一个过渡种群,雌雄虫中北方种群的体长均明显小于南方种群;各性状测量值呈现出随纬度增加而减少的趋势;10个性状中除前胸背板长、前翅长、后足股节长和后足胫节长与海拔高度之间的相关性不显著之外,其余性状均与海拔高度呈现显著的正相关。结果表明,秦岭的分隔是造成南北方种群形态特征产生差异的主要原因;体型较大、后腿股节较宽的中华稻蝗更有利于在高海拔环境生存。
In order to study the relationship between the morphological characteristics and geographical features of O. chinensis, we selected body length (LB), head length (LH), length of front and back (LP), width of front and back (WP) LLP, HLP, LEL, LF, WF and LT of the hindfoot ) And other 10 traits were measured by electronic vernier caliper to compare the length of the body using SPSS11.5 statistical analysis of body length variance, multiple variance analysis of each trait in different populations and the correlation between the traits and the altitude. The results showed that the populations of nine Chinese locusts were divided into southern group, northern group and a transitional population. The body length of the north and south populations were significantly smaller than that of the southern population. The measured values of all the traits tended to decrease with increasing latitude. There was a significant positive correlation between the traits and the altitude except for the length of the front and the back, the length of the front wing, the length of the hindfoot and the tibia length of the hind foot and the altitude. The results showed that the separation of the Qinling Mountains was the main reason for the differences in the morphological characteristics of populations in the north and south. Larger plants and wider hocks of the hind legs were more conducive to survival in the high altitude environment.