不同地理种群短额负蝗对环境温度的适应性  

Adaptability of different geographical populations of Atractomorpha sinensis(Orthoptera:Pyrgomorphidae)to environmental temperature

作　　者：李文博 高宇 崔娟 唐佳威 史树森 LI Wen-Bo;GAO Yu;CUI Juan;TANG Jia-Wei;SHI Shu-Sen(College of Plant Protection, Jilin Agricultural University, Changchun 130118, China;College of Agriculture, Jilin Agriculture Science and Technology College, Jilin, Jilin 132101, China)

机构地区：[1]吉林农业大学植物保护学院,长春130118 [2]吉林农业科技学院农学院,吉林吉林132101

出　　处：《昆虫学报》2021年第8期956-966,共11页Acta Entomologica Sinica

基　　金：国家现代农业产业技术体系建设专项(CARS-04);国家重点研发计划(2018YFD0201004)。

摘　　要：【目的】本研究旨在探明短额负蝗Atractomorpha sinensis不同地理种群对环境温度响应的适应性差异。【方法】以大豆叶片为食物饲养,在恒温16,20,24,28和32℃,相对湿度70%,光周期16L∶8D条件下,系统观测陕西延安、河南郑州、四川成都、云南曲靖和广东广州5个短额负蝗地理种群的生长发育过程,比较不同地理种群各虫态的发育历期、发育速率及发育起点温度和有效积温的差异性,分析种群生物学指标与栖息地环境温度的相关性。【结果】不同种群短额负蝗发育速率均随着温度升高而加快,但在16℃下成都和广州种群不能完成世代发育。随着不同种群栖息地纬度和海拔升高,其种群世代及各虫态发育起点温度呈下降趋势,而有效积温则呈上升趋势。其中,广州、曲靖、成都、郑州和延安地理种群世代发育起点温度分别为15.61,10.76,14.93,11.46和10.51℃,广州和成都地理种群世代发育起点温度显著高于其他种群;世代有效积温分别为828.41,1482.94,963.13,1295.80和1430.98日·度,曲靖和延安种群世代有效积温显著高于其他种群。24℃是5个地理种群比较适宜的环境温度;不同地理种群各发育阶段的有效积温与其栖息地年平均气温呈显著负相关,发育起点温度与其栖息地年平均气温呈显著正相关。【结论】结果说明短额负蝗不同地理种群对环境温度的适应性存在差异,对低环境温度适应性随着种群栖息地纬度和海拔增加而增强,对高环境温度的适应性则相反。【Aim】This study aims to ascertain the adaptability of different geographical populations of Atractomorpha sinensis in response to environmental temperature.【Methods】By using soybean leaves as the food source,we observed the growth and development process of various developmental stages of five geographical populations of A.sinensis from Yan′an,Shaanxi(YA),Zhengzhou,Henan(ZZ),Chengdu,Sichuan(CD),Qujing,Yunnan(QJ)and Guangzhou,Guangdong(GZ)under the conditions of different constant temperatures(16,20,24,28 and 32℃),RH 70%and a photoperiod of 16L∶8D,evaluated the variations in the developmental duration,developmental rates,developmental threshold temperatures and effective accumulated temperatures of different geographical populations,and analyzed the correlation between population biological indices and habitat environmental temperature.【Results】The developmental rate of different geographical populations of A.sinensis increased with the increase in temperature.However,the CD and GZ populations could not complete their generation at 16℃.As the habitat latitude and altitude increased,the developmental threshold temperatures of generation and various developmental stages of the populations gradually decreased,while their effective accumulated temperatures exhibited an increasing trend.The developmental threshold temperatures of the GZ,QJ,CD,ZZ and YA populations were 15.61,10.76,14.93,11.46 and 10.51℃,respectively.The developmental threshold temperatures of generation of the GZ and CD populations were significantly higher than those of the other populations.The effective accumulated temperature of the GZ,QJ,CD,ZZ and YA populations were 828.41,1482.94,963.13,1295.80,and 1430.98 degree-days,respectively.The effective accumulated temperatures of the QJ and YA populations were significantly higher than those of the other populations.The temperature 24℃is the optimal environmental temperature for the five geographical populations.The effective accumulated temperature of each developmental stage of

关 键 词：短额负蝗 地理种群 发育历期 发育起点温度 有效积温 

分 类 号：Q968[生物学—昆虫学]