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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1007/s10646-023-02715-x
|2 doi
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|a pubmed24n1231.xml
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|a (DE-627)NLM364812664
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|a (NLM)37989986
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
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|a Silva, Andreia Sofia Jorge
|e verfasserin
|4 aut
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| 245 |
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|a Using dietary exposure to determine sub-lethal effects from imidacloprid in two springtail (Collembola) species
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|c 2023
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 16.12.2023
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|a Date Revised 18.12.2023
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2023. The Author(s).
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|a Standard toxicity tests expose springtails (Collembola) through soil, while dietary exposure tests with animals visible on a surface are less commonly applied. We refined a method for dietary chemical exposure for two widely distributed and abundant Collembola species: Folsomia quadrioculata and Hypogastrura viatica as existing methods were sub-optimal. Newly hatched Collembola were offered bark with a natural layer of Cyanobacteria that was either moistened with a solution of the neonicotinoid insecticide imidacloprid using a micropipette or soaked in the solution overnight. The first method was superior in producing a measured concentration close to the nominal (0.21 and 0.13 mg/kg dry bark, respectively), and resulting in sub-lethal effects as expected. The adult body size was reduced by 8% for both species, but egg production only in H. viatica. Contrastingly, soaked bark resulted in a measured concentration of 8 mg/kg dry bark, causing high mortality and no egg production in either species. Next, we identified the sub-lethal concentration-range by moistening the bark to expose H. viatica to 0, 0.01, 0.04, 0.13, 0.43 and 1.2 mg imidacloprid/kg dry bark. Only the highest concentration affected survival, causing a mortality of 77%. Imidacloprid reduced moulting rate and the body size at first reproduction. The age at first reproduction appeared delayed as some replicates did not reproduce within the experiment duration. The method of moistened bark for dietary exposure proved optimal to continuously study life history traits, such as growth and reproductive outcomes, which are important to understand effects on key events crucial for population viability and growth
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|a Journal Article
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|a Collembola
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|a Dietary exposure
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|a Life history traits
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| 650 |
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|a Neonicotinoids
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| 650 |
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|a Soil ecotoxicology
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| 650 |
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|a imidacloprid
|2 NLM
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| 650 |
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|a 3BN7M937V8
|2 NLM
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| 650 |
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|a Neonicotinoids
|2 NLM
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| 650 |
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|a Nitro Compounds
|2 NLM
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| 650 |
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|a Insecticides
|2 NLM
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| 700 |
1 |
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|a Kristiansen, Silje Marie
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Sengupta, Sagnik
|e verfasserin
|4 aut
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| 700 |
1 |
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|a van Gestel, Cornelis A M
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Leinaas, Hans Petter
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Borgå, Katrine
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Ecotoxicology (London, England)
|d 1992
|g 32(2023), 10 vom: 21. Dez., Seite 1209-1220
|w (DE-627)NLM098212214
|x 1573-3017
|7 nnns
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| 773 |
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|g volume:32
|g year:2023
|g number:10
|g day:21
|g month:12
|g pages:1209-1220
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|u http://dx.doi.org/10.1007/s10646-023-02715-x
|3 Volltext
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