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• Dolezsai, A
• Mátrai, N
• Székács, A
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• Dolezsai, A
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Insects 2011, 2(2), 243-252; doi:10.3390/insects2020243

Article

Effects of Consumption of Bt-maize (MON 810) on the Collembolan Folsomia candida, Over Multiple Generations: A Laboratory Study

Gábor Bakonyi ^1,* , Anna Dolezsai ¹ , Norbert Mátrai ¹  and András Székács ²

¹ Szent István University, Department of Zoology and Animal Ecology, 2100 Gödöllő, Páter K. u. 1, Hungary ² Plant Protection Institute of the Hungarian Academy of Sciences, Department of Ecotoxicology and Environmental Analysis, 1021 Budapest, Herman O. u. 15., Hungary

* Author to whom correspondence should be addressed.

Received: 6 April 2011; in revised form: 7 May 2011 / Accepted: 19 May 2011 / Published: 23 May 2011

(This article belongs to the Special Issue Effects of Genetically Modified Plants on Insects)

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Abstract: The effect of long-term feeding on Bt-maize by collembolans in the laboratory is virtually unestablished. That is why the aim of the present study was to test whether the reproduction, fecal pellet production or food preference of the collembolan F. candida is affected when fed on Bt-maize for several consecutive generations. The collembolans were fed with Bt-maize for 0, 6, 16 and 22 months and the number of eggs and fecal pellets were determined. The experiment was repeated seven months later with the same populations. Food preference tests were additionally performed. Significant differences were found in food consumption, egg production and food preference between populations in some cases, but no time-response effect was observed. In conclusion, several generations feeding of F. candida on Cry1Ab toxin containing Bt-maize seems not to be harmful to this collembolan species.

Keywords: Folsomia candida; Bt-maize; life-history; food preference; long-term

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