Diversity and seasonal phenology of aboveground arthropods in conventional and transgenic maize crops in Central Spain

Farinós, Gema P.; Poza, Marta de la; Hernández‐Crespo, Pedro; Ortego, Félix; Castañera, Pedro

doi:10.1016/j.biocontrol.2007.11.007

Cited by 57 publications

(45 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Similarly to spiders and harvestmen (Řezáč et al 2006), we could not detect any treatment effect on the assemblage of carabid beetles in any of the study fields. Our results are thus congruent with previous findings (Volkmar & Freier 2003;Candolfi et al 2004;Pons et al 2005;Eizaguirre et al 2006;Farinos et al 2008;Balog et al 2011), including those from the Czech Republic. No significant negative effect of Bt maize on carabid beetles, rove beetles, and spiders was found in the study from south-easten part of the Czech Republic (Habuštová et al 2006) nor significant differences between Bt maize and izogenic cultivar were found in the occurrence of aphids, thrips, and predatory bugs (Sehnal et al 2004).…”

Section: Discussionsupporting

confidence: 93%

“…In most cases, assemblages of epigeal arthropods seemed not to be affected by presence of transgenic Bt maize (Volkmar & Freier 2003;Candolfi et al 2004;Sehnal et al 2004;Habuštová et al 2005Habuštová et al , 2006Pons et al 2005;Eizaguirre et al 2006;Farinos et al 2008;Balog et al 2011; but see Wold et al 2001), and these results were repeated also for Bt cotton and vegetables (Leslie et al 2007;Torres & Ruberson 2007). Indeed, some authors conclude that compared to conventional farming, the use of transgenic plants enhances arthropod biodiversity in crop fields via reduced input of insecticides to the system (Ferry et al 2006;Leslie et al 2007).…”

mentioning

confidence: 96%

See 1 more Smart Citation

Diversity of carabid beetles (Coleoptera: Carabidae) under three different control strategies against European corn borer in maize

Kocourek¹,

Saska²,

Řezáč³

2013

Plant Prot. Sci.

View full text Add to dashboard Cite

Kocourek F., Saska P., Řezáč M. (2013): Diversity of carabid beetles (Coleoptera: Carabidae) under three different control strategies against European corn borer in maize. Plant Protect. Sci., 49: 146-153.We compared three control strategies against European corn borer (ostrinia nubilalis Hubner) in maize with respect to carabid beetles, beneficial epigeal arthropods. The impact of the focal treatment (insect resistant Bt maize MON 810) was compared with conventionally farmed and Trichogramma-treated plots at two sites (Prague-Ruzyně and Ivanovice na Hané) in the Czech Republic, replicated in three cropping seasons (2002)(2003)(2004). The sampled assemblages were species-poor. The species were unevenly distributed in terms of their catch size -the communities were dominated by 7 (Ruzyně) or 3 (Ivanovice) species. No differences were found in species richness or species composition between treatments, seasons or sites, suggesting no effect of planting transgenic insect resistant Bt maize MON 810 on the assemblages of carabid beetles in the study fields.

show abstract

Section: Discussionsupporting

confidence: 93%

mentioning

confidence: 96%

Diversity of carabid beetles (Coleoptera: Carabidae) under three different control strategies against European corn borer in maize

Kocourek¹,

Saska²,

Řezáč³

2013

Plant Prot. Sci.

View full text Add to dashboard Cite

show abstract

“…Potential impacts of Bt maize on the environment to be considered included those for non-target arthropods (NTAs), an important component of agro-ecosystems formed by non-target herbivores and pests' natural enemies, among other functional groups (Asín & Pons, 1998;Albajes et al, 2003;de la Poza et al, 2005;Farinós et al, 2008;Lumbierres et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

“…In pitfall trapping two families, Carabidae and Staphylinidae, and two orders, Dermaptera and Araneae, were recorded. These predatory groups were selected according to the abundance and potential effects recorded in previous field trials (Lang et al, 1999;Albajes et al, 2003;Jasinski et al, 2003;de la Poza et al, 2005;Farinós et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Post-market environmental monitoring of Bt maize in Spain: Non-target effects of varieties derived from the event MON810 on predatory fauna

Albajes

Farinós

Pérez‐Hedo

et al. 2012

Span. j. agric. res.

View full text Add to dashboard Cite

The Spanish Government has established post-market environmental monitoring (PMEM) as mandatory for genetically modified (GM) crop varieties cultivated in Spain. In order to comply with this regulation, effects of Bt maize varieties derived from the event MON810 on the predatory fauna were monitored for two years in northeast and central Spain. The study was carried out with a randomized block design in maize fields of 3-4 ha on which the abundance of plant-dwelling predators and the activity-density of soil-dwelling predators in Bt vs. non-Bt near-isogenic varieties were compared. To this end, the plots were sampled by visual inspection of a certain number of plants and pitfall traps 6 or 7 times throughout two seasons. No significant differences in predator densities on plants were found between Bt and non-Bt varieties. In the pitfall traps, significant differences between the two types of maize were found only in Staphylinidae, in which trap catches in non-Bt maize were higher than in Bt maize in central Spain. Based on the statistical power of the assays, surrogate arthropods for PMEM purposes are proposed; Orius spp. and Araneae for visual sampling and Carabidae, Araneae, and Staphylinidae for pitfall trapping. The other predator groups recorded in the study, Nabis sp. and Coccinellidae in visual sampling and Dermaptera in pitfall trapping, gave very poor power results. To help to establish a standardized protocol for PMEM of genetically modified crops, the effect-detecting capacity with a power of 0.8 of each predator group is given.Additional key words: GMO; non-target arthropods; Orius spp.; Staphylinidae; Carabidae; PMEM; statistical power. Resumen Plan de Seguimiento del cultivo de maíz Bt en España: evaluación de los efectos de variedades con el evento MON810 sobre entomofauna no dianaCon el objetivo de cumplir con la legislación española que establece la obligatoriedad de un plan de seguimiento ambiental para post-comercialización (PMEM) para los cultivos modificados genéticamente, se evaluó durante dos años el efecto de variedades de maíz Bt derivadas del evento MON810 en la fauna depredadora, en el nordeste y centro de España. El estudio se realizó mediante un diseño de bloques al azar, en campos de maíz de 3-4 ha, en los cuales se comparó la abundancia/actividad de depredadores en planta y en el suelo entre variedades de maíz Bt y no-Bt. Las parcelas se muestrearon de 6 a 7 veces durante cada uno de los dos años mediante inspección visual de un número determinado de plantas y por medio de trampas de gravedad. No se observaron en general diferencias significativas en la densidad de depredadores en planta y en el suelo entre las variedades Bt y no-Bt y sólo los Staphylinidae mostraron capturas significativamente mayores en parcelas no Bt en el centro de España. En base a la potencia estadística obtenida de los análisis se proponen una serie de artrópodos indicadores para los ensayos de PMEM: Orius spp. y Araneae

show abstract

Effects of genetically modified maize events expressing Cry34Ab1, Cry35Ab1, Cry1F, and CP4 EPSPS proteins on arthropod complex food webs

Pálinkás

Kiss

Zalai

et al. 2017

Ecology and Evolution

View full text Add to dashboard Cite

Four genetically modified (GM) maize (Zea mays L.) hybrids (coleopteran resistant, coleopteran and lepidopteran resistant, lepidopteran resistant and herbicide tolerant, coleopteran and herbicide tolerant) and its non‐GM control maize stands were tested to compare the functional diversity of arthropods and to determine whether genetic modifications alter the structure of arthropods food webs. A total number of 399,239 arthropod individuals were used for analyses. The trophic groups’ number and the links between them indicated that neither the higher magnitude of Bt toxins (included resistance against insect, and against both insects and glyphosate) nor the extra glyphosate treatment changed the structure of food webs. However, differences in the average trophic links/trophic groups were detected between GM and non‐GM food webs for herbivore groups and plants. Also, differences in characteristic path lengths between GM and non‐GM food webs for herbivores were observed. Food webs parameterized based on 2‐year in‐field assessments, and their properties can be considered a useful and simple tool to evaluate the effects of Bt toxins on non‐target organisms.

show abstract

Diversity and seasonal phenology of aboveground arthropods in conventional and transgenic maize crops in Central Spain

Abstract: El artículo seleccionado no se encuentra disponible por ahora a texto completo por no haber sido facilitado todavía por el investigador a cargo del archivo del mismo.

Cited by 57 publications

References 40 publications

Diversity of carabid beetles (Coleoptera: Carabidae) under three different control strategies against European corn borer in maize

Diversity of carabid beetles (Coleoptera: Carabidae) under three different control strategies against European corn borer in maize

Post-market environmental monitoring of Bt maize in Spain: Non-target effects of varieties derived from the event MON810 on predatory fauna

Effects of genetically modified maize events expressing Cry34Ab1, Cry35Ab1, Cry1F, and CP4 EPSPS proteins on arthropod complex food webs

Contact Info

Product

Resources

About