青海湟源蕨麻访花昆虫多样性及访花行为分析
Diversity and visiting behaviors of floral visitor insects of Potentilla anserina in Huangyuan County, Qinghai Province
目的 探究青藏高原青海湟源地区蕨麻访花昆虫种类组成及其访花行为。 方法 采用循环路线法和定点观察法相结合,于2022年7月15日至8月13日在青海省湟源县日月乡蕨麻种植基地,以青海蕨麻2号品种和青海蕨麻4号品系为对象,调查蕨麻访花昆虫组成及访花行为。 结果 采集蕨麻访花昆虫1 212只,经鉴定隶属3目7科14种,以膜翅目(34.65%)和双翅目(52.64%)为主,其中蜜蜂科黑颚条蜂(Anthophora melanognatha)、食蚜蝇科宽跗食蚜蝇属(Platycheirus)、刺腿食蚜蝇(Ischiodon scutellaris Fabricius)及丽蝇科的新陆原伏蝇(Protophormia terraenovae)数量最多,分别为210只(17.33%)、189只(15.59%)、147只(12.13%)和120只(9.9%),是蕨麻的主要访花昆虫;日活动规律,黑颚条蜂和宽跗食蚜蝇在11∶00~12∶00、12∶00~13∶00以及13∶00~14∶00这3个时段出现数量最多,分别有134只(63.81%)和91只(48.15%);刺腿食蚜蝇和新陆原伏蝇在11∶00~12∶00和12∶00~13∶00时段最多,分别有57只(38.78%)和43只(35.83%),且这4个种类的访花频率不同,其中宽跗食蚜蝇最高(9.30±0.55)朵/min,新陆原伏蝇次之(7.10±0.43)朵/min,刺腿食蚜蝇随后(6.20±0.36 b),黑颚条蜂最低(2.70±0.27)朵/min,另外,不同品种的蕨麻其访花昆虫种类也不完全相同。 结论 在高海拔地区,双翅目昆虫比膜翅目昆虫更适宜做访花昆虫。
Objective The study aimed to explore the composition and behaviors of flower-visiting insects of Potentilla anserina. Method From 15 July to 13 August 2022,the Qinghai Juema No.2 variety and Qinghai Juema No.4 trains were employed,and their floral visitors were observed by the ways of circular-route and fixed-point observation in Juema cultivation station of Riyue Town,Huangyuan County,Qinghai province. Result The total 1 212 floral visitor insects were sampled,which belonged to 3 orders,7 families and 14 species.Among them,the insects of Hymenoptera and Diptera dominated and accounted for 34.65% and 52.64% of the total number,respectively.The insects of Anthophora melanognatha in Apidae,Platycheirus and Ischiodon scutellaris in Syrphidae and Protophormia terraenovae in Calliphoridae were the greatest in the number,which were 210(17.33%),189(15.59%),147(12.13%),and 120(9.9%),respectively,and they were the dominant visitors of Juema plants.Diurnal activity rhythm,the peak of visiting frequencies of A.melanognatha and Platycheirus are at 11∶00~12∶00,12∶00~13∶00 and 13∶00~14∶00,and the number of both species were 134(63.81%) and 91(48.15%) respectively.The peak of visiting of I.scutellaris and P.terraenovae were at 11∶00~12∶00 and 12∶00~13∶00,the number of which were 57(38.78%) and 43(35.83%),respectively.The four types of visitor insects were different in visiting efficiency,which of Platycheirus was the highest,and the average number of flowers visited was (9.30±0.55)per min,followed by (7.10±0.43) of P.terraenovae (6.20±0.36) of I.scutellaris,and (2.70±0.27) of A.melanognatha.Different Juema varieties were also different in species of visiting insects. Conclusion At high altitude,the insects of diptera are more suitable as floral visitors of P.anserine than hymenoptera.
蕨麻 / 访花昆虫 / 访花行为 / 活动节律 / 青藏高原
Potentilla anserina L / flower-visiting insect / visiting behaviour / daily activity rhythm / Tibet Plateau
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青藏高原种质资源研究与利用实验室2022-ZJ-Y01
青海民族大学2022年校级规划项目(2022XJX14)
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