意大利蝗雌成虫对植物的取食特性  

Feeding characteristics of adult female Italian locust Calliptamus italicus on plants

作　　者：康文静 李金星 任金龙 赵莉 Kang Wenjing;Li Jinxing;Ren Jinlong;Zhao Li(Key Laboratory of Monitoring and Safe Prevention and Control of Agricultural and Forestry Pests,College of Agriculture,Xinjiang Agricultural University,Urumqi 830052,Xinjiang Uygur Autonomous Region,China)

机构地区：[1]新疆农业大学农学院,农林有害生物监测与安全防控重点实验室,乌鲁木齐830052

出　　处：《植物保护学报》2024年第5期1211-1217,共7页Journal of Plant Protection

基　　金：国家科技基础资源调查专项(2019FY100403)。

摘　　要：为明确自然条件下意大利蝗Calliptamus italicus雌成虫不同发育阶段的食性及其取食策略,于2021年选取新疆维吾尔自治区乌鲁木齐市雅玛里克山为调查区,利用嗉囊显微分析技术观察其取食选择性,明确其不同发育阶段食性差异,并利用功能生态位分析揭示其取食策略。结果表明:自然条件下意大利蝗雌成虫可取食8科21种植物,其中在其卵巢发育阶段I~II级取食的植物种类最少,为11种;Ⅲ、Ⅳ、Ⅴ级时取食种类逐渐增加,其取食的植物种类分别为13、17和18种。意大利蝗雌成虫主动取食的植物种类在卵巢发育阶段Ⅲ级时最多,为8种,之后随卵巢发育阶段等级的提升而减少,Ⅳ级和Ⅴ级时分别为7种和6种。意大利蝗雌成虫多取食双子叶植物的菊科和藜科植物,其中对大籽蒿Artemisia sieversiana、新疆绢蒿Sarcozygium kaschgaricum和木地肤Bassia prostrata取食较多。意大利蝗雌成虫对C、N和P的取食量均在卵巢发育Ⅳ级时其最高;且其对植物的选择指数与植物的P含量、C∶P和N∶P含量比呈显著相关性。表明意大利蝗雌成虫对植物的选择受植物P含量影响,植物的C、N含量不直接影响雌成虫对植物的选择,而植物P含量会间接影响其对植物C、N含量摄入。To elucidate the feeding habits of adult female Italian locust Calliptamus italicus across vari-ous developmental stages and their foraging strategies in natural settings,the Yamalik Mountain region in Urumqi,Xinjiang Uygur Autonomous Region,was designated as the study area in 2021.Crop micro-analysis was employed to assess their feeding selectivity,delineate the differences in feeding behaviors at distinct developmental phases,and unveil their feeding strategies through functional ecological niche analysis.The results showed that,under natural conditions,female adults consumed 21 plant species from eight families.Notably,during the initial developmental phase of ovary maturation,only 11 spe-cies were recorded,with the number of species consumed gradually increasing to 13,17,and 18 during stages Ⅲ,Ⅳ,and Ⅴ,respectively.The most active foraging by female adults occurred at stage Ⅲ of ovarial development,with eight species,followed by a decline to seven and six species during stages Ⅳ and Ⅴ,respectively.Calliptamus italicus predominantly fed on dicotyledonous plants from the Asterace-ae and Chenopodiaceae families,with a particular preference for Artemisia sieversiana,Seriphidium kaschgaricum,and Bassia prostrata.The consumption of carbon(C),nitrogen(N),and phosphorus(P)peaked during stage Ⅳ of ovarial development.The selection index of female adults for plants showed a significant correlation with the P content,C∶P ratio,and N∶P ratio of the plants.The results indicated that the selection of plants by female adults was influenced by the P content,while the C and N content of the plants did not directly affect the selection,and the P content of the plants indirectly influenced the in-take of C and N content by adult females.

关 键 词：新疆 意大利蝗 卵巢发育 食性 植物化学计量特征 

分 类 号：S812.6[农业科学—草业科学]