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|a 10.1007/s10646-021-02513-3
|2 doi
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|a eng
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|a Tsotesti, Palesa Andile Adrena
|e verfasserin
|4 aut
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|a Behavioural changes and flight response of a mosquito (Culicidae) and an earthworm (Lumbricidae), respectively, after exposure to imidacloprid
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|c 2022
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|a Text
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Completed 24.03.2022
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|a Date Revised 24.03.2022
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2021. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.
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|a A major point of concern in ecotoxicology is the effects of pesticides on nontarget organisms. This can impact the ecological role played by certain beneficial species in nature. Regarding neonicotinoid insecticides such as imidacloprid (IMI), several measures, including limited trade, restrictive use, and ban have been implemented in Europe and the USA but not globally. The goal of our study was to evaluate the potential risk of this still widely used agrochemical on the behaviour of mosquito larvae (Culicidae) and the escape behaviour of earthworms (Lumbricidae). Changes in breathing, swimming and resting were recorded in mosquitoes postexposure to 0, 1 and 2 mg IMI/L for 10 min. Earthworms were topically exposed in water for 2 minutes to 0, 5, 10 and 20 mg IMI/L. The escape behaviour (initial escape distance and speed) of the earthworms were recorded. In culicids, resting particularly was significantly increased by the exposure to imidacloprid (p < 0.05). In earthworms, the initial escape distance was statistically longer (p < 0.05) when fleeing from the 5 mg IMI/L solution than the solutions with the two highest concentrations. The worms exposed to the 5 mg IMI/L reacted faster than those exposed to the higher concentrations, which explained the long distance covered in the same amount of time. These results point to the relatively quick onset of the neurotoxic effects of imidacloprid, crippling earthworms and altering the buoyancy of mosquito larvae. The ecological consequences of these findings on the completion of life cycles and the survival of these species in nature are yet to be established
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|a Journal Article
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|a Behaviour patterns
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|a Earthworm
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|a Imidacloprid
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|a Mosquito larvae
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|a Insecticides
|2 NLM
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|a Neonicotinoids
|2 NLM
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|a Nitro Compounds
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|a imidacloprid
|2 NLM
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| 650 |
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|a 3BN7M937V8
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|a Mazibuko, Simangele Sandra
|e verfasserin
|4 aut
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|a Nyoka, Ngitheni Winnie-Kate
|e verfasserin
|4 aut
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|a Mnkandla, Sanele Michelle
|e verfasserin
|4 aut
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|a Fouché, Tanya
|e verfasserin
|4 aut
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|a Otomo, Patricks Voua
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Ecotoxicology (London, England)
|d 1992
|g 31(2022), 3 vom: 10. Apr., Seite 367-375
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|x 1573-3017
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|g volume:31
|g year:2022
|g number:3
|g day:10
|g month:04
|g pages:367-375
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|u http://dx.doi.org/10.1007/s10646-021-02513-3
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