Distribution characteristics of small rodents in Kangbao pasture,natural plague focus of Hebei Province

YAN Ping; KANG Dongmei; CHEN Yongming; NIU Yanfen; LIU Guang; YAN Dong

doi:10.19821/j.1671-2781.2024.03.013

Abstract：Objective To investigate the monitoring data of small rodents in Kangbao pasture,Hebei Province from 2005 to 2023,and explore the population distribution characteristics of small rodents,so as to provide the basis for accurate monitoring of small rodents and the prediction and early warning of animal plague epidemic.Methods The monitoring data of small rodents from 2005 to 2023 in Kangbao pasture,the natural plague focus of Hebei Province,were analyzed with Excel 2010,and the population distribution characteristics of small rodents were statistically analyzed.Results From 2005 to 2023,a total of 39 900 rodents were captured,belonging to 2 families,7 genera,9 species,with an average capture rate of 2.06％.Cricetulus barabensis was the dominant species.the average capture rate fluctuates from year to year,and the seasonal variation is unimodal.The average capture rate of habitats from high to low rank were artificial grassland(2.86±1.47)％,hillside(2.67±2.64)％,grassland(2.19±0.89)％,forest zone(2.10±1.79)％,wastland(1.92±1.32)％,ridge hill(1.91±1.06)％,cultivated land(1.85±1.58)％,the mountain slope fluctuates the most;the average capture rate decreased with the terrain from northeast to southwest.Conclusion The population distribution of small rodents was uneven in Kangbao pasture,the natural plague focus of Hebei Province.The population density of small rodents could be effectively controlled by strengthening rodent control in autumn in the plague focus,and the monitoring quality of small rodents could be improved by strengthening high-density habitat and regional monitoring.