volume 168, issue 5, P381-386 2020
DOI: 10.1111/eea.12898
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Qian Zhang, Long Yang, Min‐Long Li, Yong‐Qiang Liu, Yan‐Hui Lu

Abstract: Methods to trace source habitats and movement of parasitic natural enemies in agroecosystems are limited. This study demonstrates that stable carbon isotope analysis offers a valuable new method for revealing the movement of Microplitis mediator (Haliday) (Hymenoptera: Braconidae), a larval endoparasitoid of Helicoverpa armigera Hübner (Lepidoptera: Noctuidae), between C 3 and C 4 plants.Results indicate that M. mediator with δ 13 C values of lower than À22‰ originate from a C 3 plant, whereas those with δ 13…

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