牧草生态化学计量特征对毛足棒角蝗取食行为的影响  

Effects of ecological stoichiometric characteristics of forages on feeding behavior of Dasyhippus barbipes

作　　者：赵万凯 郝树广[2] 郑文胜 郑金钢 敦惠霞 ZHAO Wankai;HAO Shuguang;ZHENG Wensheng;ZHENG Jingang;DUN Huixia(College of Horticulture and Plant Protection,Inner Mongolia Agricultural University,Hohhot 010011,China;State Key Laboratory of Integrated Management of Pest Insects and Rosents in Agriculture,Institute of Zoology,Chinese Academy of Sciences,Beijing 100101,China;Grassland Workstation of Xianghuang Banner of Xilinhot City,Xinbaolage Town 026000,China;Forestry and Grassland Bureau of Xianghuang Banner of Xilinhot City,Xinbaolage Town 026000,China;Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences,Hohhot 010031,China)

机构地区：[1]内蒙古农业大学园艺与植物保护学院,内蒙古呼和浩特010011 [2]中国科学院动物研究所农业虫鼠害综合治理研究国家重点实验室,北京100101 [3]锡林郭勒盟镶黄旗草原工作站,内蒙古新宝拉格镇026000 [4]锡林郭勒盟镶黄旗林业和草原局,内蒙古新宝拉格镇026000 [5]内蒙古自治区农牧业科学院,内蒙古呼和浩特010031

出　　处：《北方农业学报》2021年第4期105-114,共10页Journal of Northern Agriculture

基　　金：科技基础资源调查专项(2019FY100303-01);国家自然科学基金面上项目(3177130843)。

摘　　要：【目的】明确牧草生态化学计量特征与毛足棒角蝗(Dasyhippus barbipes)取食行为的关系,从而为草原蝗虫灾害治理提供生态与化学理论依据。【方法】采用不同配比人工饲料试验,设氮∶碳系列(7∶35、14∶28、28∶28、28∶14、35∶7),蔗糖∶淀粉系列(0∶50.0、12.5∶37.5、25.0∶25.0、37.5∶12.5、50.0∶0),分析不同配比人工饲料对毛足棒角蝗存活历期与取食行为的影响;同时采用裂区设计,进行羊草(Leymus chinesis)、克氏针茅(Stipa krylovii)营养含量试验,设放牧×不补水、放牧×补水、不放牧×不补水、不放牧×补水4个处理,分析羊草、克氏针茅中C、H、N、S元素含量,并计算总碳氮比(C∶N)、总碳氢比(C∶H)。【结果】人工饲料试验中,存活历期方面,毛足棒角蝗雌性平均存活历期为13.7 d、雄性为11.5 d,雌性平均存活历期均高于雄性。体重增长率方面,雄性体重增长率最高值出现的时间先于雌性,饲喂前期雄性发育表现较好,饲喂后期雌性发育表现较好。取食行为方面,氮∶碳系列人工饲料配比中,雌性取食量排序为14∶28>7∶35>28∶14>28∶28>35∶7、雄性取食量排序为14∶28>35∶7>28∶28>28∶14>7∶35;蔗糖∶淀粉系列人工饲料配比中,雌性取食量排序为12.5∶37.5>37.5∶12.5>25.0∶25.0>50.0∶0>0∶50.0、雄性取食量排序为12.5∶37.5>50.0∶0>25.0∶25.0>37.5∶12.5>0∶50.0。相对于不放牧×不补水、不放牧×补水处理,放牧×不补水、放牧×补水处理均显著(P<0.05)提高了羊草总C含量、总N含量;放牧×补水处理较放牧×不补水处理显著(P<0.05)提高了羊草总N含量,显著(P<0.05)降低了羊草总S含量,显著(P<0.05)提高了羊草C∶N。放牧×不补水、放牧×补水处理均显著(P<0.05)提高了克氏针茅总C含量,极显著(P<0.01)提高了克氏针茅总N含量、总H含量、总S含量,极显著(P<0.01)降低了克氏针茅C∶N。【结论】雌性、雄性毛足棒角蝗均喜食�【Objective】To clarify the relationship between the ecological stoichiometric characteristics of forages and the feeding behavior of Dasyhippus barbipes,so as to provide ecological and chemical theory basis for grassland locust disaster management. 【Methods】The effects of artificial feed with different ratios on the survival duration and feeding behavior of Dasyhippus barbipes were analyzed by setting up nitrogen∶carbon series(7∶35,14∶28,28∶28,28∶14,35∶7)and sucrose∶starch series(0∶50.0,12.5∶37.5,25.0∶25.0,37.5∶12.5,50.0∶0). At the same time,the split zone design was used to test the nutrient contents of Leymus chinensis and Stipa krylovii. The treatments of grazing ×no water replenishment,grazing ×water replenishment,no grazing×no water replenishment,and no grazing×water replenishment were set up. The contents of C,H,N and S in Leymus chinensis and Stipa krylovii were analyzed,and the total carbon to nitrogen ratio(C∶N)and the total carbon to hydrogen ratio(C∶H)were calculated. 【Results】In the artificial feed experiment,in terms of survival duration,the average survival duration of female Dasyhippus barbipes was 13.7 days and that of male was 11.5 days. The average survival duration of female Dasyhippus barbipes was longer than that of male. In terms of body weight growth rate,the presence of the peak of body weight growth rate of male Dasyhippus barbipes was earlier than that of female. Male Dasyhippus barbipes had better performance in development in the early stage of feeding,and female had better performance in development in the late stage of feeding. In terms of feeding behavior,among the nitrogen ∶carbon series of artificial feed,the order of female Dasyhippus barbipes feeding amount was 14∶28>7∶35>28∶14>28∶28>35∶7,and that of male feeding amount was 14∶28>35∶7>28∶28>28∶14>7∶35;among the sucrose∶starch series of artificial feed,the order of female Dasyhippus barbipes feeding amount was 12.5∶37.5>37.5 ∶12.5 >25.0 ∶25.0 >50.0 ∶0 >0 �

关 键 词：毛足棒角蝗 人工饲料 羊草 克氏针茅 营养含量 碳氮含量 蔗糖 淀粉 

分 类 号：S433.2[农业科学—农业昆虫与害虫防治]