Influence of Bt Maize on Diversity and Composition of Non-target Arthropod Species

Sousa, Maria Freire de; Fernandes, Marcos Gino; Guimarães, Anderson José da Silva

doi:10.5539/jas.v11n2p201

Cited by 2 publications

(2 citation statements)

References 27 publications

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“…The results of the present study are similar to the findings of Sousa et al (2019), who found no significant variation in arthropod species diversity and composition between Bt maize and non‐ Bt maize fields. Truter et al (2014), Svobodova et al (2015), and Resende et al (2016) also reported no significant differences in the diversity and abundance of non‐target arthropods between Bt and non‐ Bt maize fields expressing different Bt proteins.…”

Section: Resultssupporting

confidence: 92%

Comparing the effects of GM and non‐GM soybean varieties on non‐target arthropods

Amin

Suh

2020

Entomological Research

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In order to guarantee the safety of genetically modified (GM) soybean crops, it is important to assess the potential toxicity of their expressed insecticidal proteins to non-target organisms. In the present study, the effects of the GM soybean Insulin-like Growth Factor (IGF), which is tolerant to the herbicide glufosinate, on plant-dwelling non-target insects and arachnids were evaluated in soybean agroecosystems. For comparison, the non-GM parental cultivar of soybean Gwangan-kong was used as a control. Data were collected in 2016 and 2017 via surveying at Ochang and Jeonju, Korea. In total, 13,031 individual insects and arachnids, representing 64 families in 11 orders, were captured during the study. Firstly, the results indicate that the GM soybean IGF did not negatively affect plant-dwelling non-target insects and arachnids. However, the numbers of captured individuals on both IGF and Gwangan-kong were higher at Ochang in 2017. The occurrence of insect pests, natural enemies, and other insects differed significantly according to region, region and survey year, and survey year, respectively. In addition, the dominance, diversity, evenness, and richness indices for the collected insects varied significantly among the regions and survey years regardless of soybean variety. The score from PROXSCAL multidimensional scaling using combined data showed that insects and arachnids in different natural environments were separated by their cultivation regions and years irrespective of soybean cultivars.

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Section: Resultssupporting

confidence: 92%

Comparing the effects of GM and non‐GM soybean varieties on non‐target arthropods

Amin

Suh

2020

Entomological Research

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“…The results of the present study are in agreement with those of Sousa et al . (2019), who found no significant variation in arthropod species diversity and composition between Bt and non‐ Bt maize fields. Several studies have also reported no significant differences in the diversity and abundance of non‐target arthropods between Bt and non‐ Bt maize fields expressing different Bt proteins (Truter et al .…”

Section: Resultsmentioning

confidence: 99%

Impact of insect‐resistant transgenic rice on above‐ground non‐target arthropods in Korea

Amin

Bae

et al. 2020

Entomological Research

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Transgenic rice (Bt-T event) shows resistance against rice leaf roller (Cnaphalocrocis medinalis) by expressing a toxic protein (mCry1Ac1) mediated from the soil bacterium Bacillus thuringiensis. Environmental risk assessment of Bt-T event, in addition to the parent variety Dongjin-byeo and cultivar Ilmi-byeo, was performed during the rice cultivation seasons of 2016 and 2017 at LMO quarantine fields in Gunwi and Jeonju, Korea. Non-target arthropods (insects and spiders) were captured using an aspirator from the three rice ecosystems of both locations, and in total 39,734 individuals of 57 families and 11 orders were collected. The numbers of individuals collected from the Bt-T, Dongjin-byeo and Ilmi-byeo rice ecosystems were 12,899, 12,730, and 14,105, respectively, which did not differ significantly among rice ecosystems. The dominance, diversity, evenness, and richness indices of the collected insects were not statistically different among the rice ecosystems, but significant variations between the two locations and survey years were detected. Principal component analysis showed that insects and spiders in the Bt-T, Dongjinbyeo, and Ilmi-byeo rice ecosystems were separated by the study locations and years irrespective of rice variety. In conclusion, results obtained in two consecutive years from two non-genetically modified rice ecosystems and a Bt-T rice ecosystem showed that the Bt-T rice had no significant negative impacts on the above-ground insect and spider communities.

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Influence of Bt Maize on Diversity and Composition of Non-target Arthropod Species

Cited by 2 publications

References 27 publications

Comparing the effects of GM and non‐GM soybean varieties on non‐target arthropods

Comparing the effects of GM and non‐GM soybean varieties on non‐target arthropods

Impact of insect‐resistant transgenic rice on above‐ground non‐target arthropods in Korea

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