Seasonal Differences and Influencing Factors of the Relative Fatness of Rattus tanezumi in Ruili,Yunnan Province
Rattus tanezumi is a common source of plague infection and agricultural pest in southern China.In order to understand the effect of different environmental factors on relative fatness and individual differences of R.tanezumi,the relative fatness of a total of 819 individuals captured from August 2,009 to May 2,010 in Ruili City,Yunnan Province were analyzed.The results showed that there was a significant male-biased dimorphism in the relative fatness of R.tanezumi,the relative fatness of males R.tanezumi was significantly higher than that of females,and which were significant differences between different landscapes,different habitats,and different seasons.Within 10 months of the survey,the relative fatness fluctuated obviously,in which the fatness of males showed'three peaks',the highest value(the first peak)appeared in October,the second peak appeared in January of the following year,and the third peak appeared in May.The fatness of females showed a'dual peaks',the highest value(the first peak)appeared in October,and the second peak was in April of the following year.These results suggest that population monitoring should be strengthened in January,April,May,October and December.
NETL
NSTL
万方数据
维普
