title: Effects of transgenic cry1Ie maize on non-lepidopteran pest abundance, diversity and community composition.
abstract: Non-lepidopteran pests are exposed to, and may be influenced by, Bt toxins when feeding on Bt maize that express insecticidal Cry proteins derived from Bacillus thuringiensis (Bt). In order to assess the potential effects of transgenic cry1Ie maize on non-lepidopteran pest species and ecological communities, a 2-year field study was conducted to compare the non-lepidopteran pest abundance, diversity and community composition between transgenic cry1Ie maize (Event IE09S034, Bt maize) and its near isoline (Zong 31, non-Bt maize) by whole plant inspections. Results showed that Bt maize had no effects on non-lepidopteran pest abundance and diversity (Shannon-Wiener diversity index, Simpson's diversity index, species richness, and Pielou's index). There was a significant effect of year and sampling time on those indices analyzed. Redundancy analysis indicated maize type, sampling time and year totally explained 20.43 % of the variance in the non-lepidopteran pest community composition, but no association was presented between maize type (Bt maize and non-Bt maize) and the variance. Nonmetric multidimensional scaling analysis showed that sampling time and year, rather than maize type had close relationship with the non-lepidopteran pest community composition. These results corroborated the hypothesis that, at least in the short-term, the transgenic cry1Ie maize had negligible effects on the non-lepidopteran pest abundance, diversity and community composition.
authors.affiliation: State Key Laboratory for Biology of Plant Diseases and Insect Pests, MOA - CABI Joint Laboratory for Bio-Safety, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China.
authors.forename: Jingfei
authors.initials: J
authors.lastname: Guo
authors.affiliation: State Key Laboratory for Biology of Plant Diseases and Insect Pests, MOA - CABI Joint Laboratory for Bio-Safety, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China.
authors.forename: Kanglai
authors.initials: K
authors.lastname: He
authors.affiliation: State Key Laboratory for Biology of Plant Diseases and Insect Pests, MOA - CABI Joint Laboratory for Bio-Safety, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China.
authors.forename: Shuxiong
authors.initials: S
authors.lastname: Bai
authors.affiliation: State Key Laboratory for Biology of Plant Diseases and Insect Pests, MOA - CABI Joint Laboratory for Bio-Safety, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China.
authors.forename: Tiantao
authors.initials: T
authors.lastname: Zhang
authors.affiliation: Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
authors.forename: Yunjun
authors.initials: Y
authors.lastname: Liu
authors.affiliation: State Key Laboratory for Biology of Plant Diseases and Insect Pests, MOA - CABI Joint Laboratory for Bio-Safety, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China.
authors.forename: Fuxin
authors.initials: F
authors.lastname: Wang
authors.affiliation: State Key Laboratory for Biology of Plant Diseases and Insect Pests, MOA - CABI Joint Laboratory for Bio-Safety, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China. zywang@ippcaas.cn.
authors.forename: Zhenying
authors.initials: Z
authors.lastname: Wang
mesh_terms: D000818:Animals; D001181:Arthropods / Q000235:genetics / Q000472:pathogenicity; D001413:Bacillus thuringiensis / Q000235:genetics; D001426:Bacterial Proteins / Q000235:genetics*; D019476:Insect Proteins; D007306:Insecticides; D010572:Pest Control, Biological; D030821:Plants, Genetically Modified / Q000235:genetics* / Q000469:parasitology; D011956:Receptors, Cell Surface / Q000235:genetics*; D003313:Zea mays / Q000235:genetics* / Q000254:growth & development / Q000469:parasitology
chemical_list: D001426:Bacterial Proteins; C095416:Cry toxin receptors; D019476:Insect Proteins; D007306:Insecticides; D011956:Receptors, Cell Surface
keywords: Abundance; Community composition; Diversity; Non-lepidopteran pest; Transgenic cry1Ie maize