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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1111/gcb.15856
|2 doi
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|a pubmed25n1098.xml
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|a (DE-627)NLM32961634X
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|a (NLM)34418243
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Macaulay, Samuel J
|e verfasserin
|4 aut
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| 245 |
1 |
0 |
|a Warming and imidacloprid pulses determine macroinvertebrate community dynamics in experimental streams
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| 264 |
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1 |
|c 2021
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| 336 |
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|a Text
|b txt
|2 rdacontent
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| 337 |
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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| 500 |
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|a Date Completed 01.11.2021
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| 500 |
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|a Date Revised 01.11.2021
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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| 520 |
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|a © 2021 John Wiley & Sons Ltd.
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|a Sustainable management of freshwater and pesticide use is essential for mitigating the impacts of intensive agriculture in the context of a changing climate. To better understand how climate change will affect the vulnerability of freshwater ecosystems to chemical pollutants, more empirical evidence is needed on the combined effects of climatic and chemical stressors in environmentally realistic conditions. Our experiment provides the first empirical evaluation of stream macroinvertebrate community dynamics in response to one of the world's most widely used insecticides, imidacloprid, and increased water temperature. In a 7-week streamside experiment using 128 flow-through circular mesocosms, we investigated the effects of pulsed imidacloprid exposure (four environmentally relevant levels between 0 and 4.6 µg/L) and raised water temperature (ambient, 3°C above) on invertebrate communities representative of fast- and slow-flowing microhabitats. Invertebrate drift and insect emergence were monitored during three pesticide pulses (10 days apart), and benthic invertebrate communities were sampled after 24 days of heating and pesticide manipulations. All three manipulated factors strongly affected drift community composition. The first imidacloprid pulse and increased temperature had a greater impact on communities in fast-flowing mesocosms, which contained more pollution-sensitive EPT taxa (mayflies, stoneflies and caddisflies). Heating and imidacloprid caused increased emigration by drift, weak reductions in emergence, and negatively affected the benthic community. The combined effect of stressor manipulations and a 10-day natural heatwave drastically reduced relative abundances of EPT and insects overall and caused a shift to oligochaete-, crustacean- and gastropod-dominated communities. Contrary to our hypothesis, the very high yet realistic water temperatures reached in our experiment meant the negative effects of imidacloprid were clearest at ambient temperatures and fast flow. These findings demonstrate the potential combined impacts of imidacloprid contamination and heatwaves on freshwater invertebrate communities under future climate scenarios and highlight the need for more countries to take regulatory action to control neonicotinoid use
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| 650 |
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4 |
|a Journal Article
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| 650 |
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4 |
|a climate change
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| 650 |
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4 |
|a freshwater
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| 650 |
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4 |
|a heatwaves
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| 650 |
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4 |
|a insecticides
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| 650 |
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4 |
|a multiple stressors
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| 650 |
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4 |
|a neonicotinoids
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| 650 |
|
7 |
|a Insecticides
|2 NLM
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| 650 |
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7 |
|a Neonicotinoids
|2 NLM
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| 650 |
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7 |
|a Nitro Compounds
|2 NLM
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| 650 |
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7 |
|a Water Pollutants, Chemical
|2 NLM
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| 650 |
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7 |
|a imidacloprid
|2 NLM
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| 650 |
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7 |
|a 3BN7M937V8
|2 NLM
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| 700 |
1 |
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|a Hageman, Kimberly J
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Piggott, Jeremy J
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Juvigny-Khenafou, Noël P D
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Matthaei, Christoph D
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Global change biology
|d 1999
|g 27(2021), 21 vom: 06. Nov., Seite 5469-5490
|w (DE-627)NLM098239996
|x 1365-2486
|7 nnas
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| 773 |
1 |
8 |
|g volume:27
|g year:2021
|g number:21
|g day:06
|g month:11
|g pages:5469-5490
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| 856 |
4 |
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|u http://dx.doi.org/10.1111/gcb.15856
|3 Volltext
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|d 27
|j 2021
|e 21
|b 06
|c 11
|h 5469-5490
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