Study on the Population Control Effectiveness of Plateau Pika Based on Low-Altitude Baiting Technology By Unmanned Aerial Vehicles(UAV)
To determine the control effect of UAVs on plateau pika under different feeding parameters,four kinds of rodenticides such as triptolide granules,Clostridium botulinum toxin type C granules,Clostridium botuli-num toxin type C water agent and Clostridium botulinum toxin type D water agent,were used to investigate the pika population density under different flight parameters on the alpine grassland plateau in Dari County,Guoluo Tibetan Autonomous Prefecture.The results showed that after 7 days and 4 months of bait delivery,the optimal flight alti-tude,speed and hatch opening degree of type C botulinum toxin granule were11 m,7 m/s,59%.The feeding a-mount was 3.00 kg/hm2,while the optimal flight altitude,speed and opening degree of type D botulinum toxin wa-ter agent were 14 m,11 m/s,50%,and the feeding amount was 4.50 kg/hm2.The optimal flight altitude,speed and opening degree of Botox C water agent used by UAV were 17 m,7 m/s,41%,Thile the optimal feeding a-mount was 3.00 kg/hm2,the optimal flight altitude,speed and opening degree of triptolide granules were 17 m,9 m/s,68%,and the feeding amount was 3.38 kg/hm2.The control effect of Type C botulinum toxin granules(92.67%)was higher than that of type D botulinum toxin water agents(89.60%),type C botulinum toxin water agents(88.19%)and triptolide granules(79.28%).Comprehensive evaluating the control effect and drug cost of UAV flight,it is suggested that type C botulinum toxin granules should be used for prevention and control in the ex-tremely dangerous areas of plateau pikas to rapidly reduce their population density.Triptolide granules are used in moderate hazard areas,which not only reduces the population density of plateau pikas,but also avoids the imbal-ance of the food chain caused by the"population clearance"of rodenticide such as type C botulinum.
万方数据
维普
