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排序方式: 共有73条查询结果,搜索用时 31 毫秒
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Pisa Lennard Goulson Dave Yang En-Cheng Gibbons David Sánchez-Bayo Francisco Mitchell Edward Aebi Alexandre van der Sluijs Jeroen MacQuarrie Chris J. K. Giorio Chiara Long Elizabeth Yim McField Melanie Bijleveld van Lexmond Maarten Bonmatin Jean-Marc 《Environmental science and pollution research international》2021,28(10):11749-11797
Environmental Science and Pollution Research - New information on the lethal and sublethal effects of neonicotinoids and fipronil on organisms is presented in this review, complementing the... 相似文献
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Le Conte Y Bécard JM Costagliola G de Vaublanc G El Maâtaoui M Crauser D Plettner E Slessor KN 《Die Naturwissenschaften》2006,93(5):237-241
A brood pheromone identified in honeybee larvae has primer and releaser pheromone effects on adult bees. Using gas chromatography–mass spectrometry (GC–MS) to evaluate fatty acid esters—the pheromonal compounds—in different parts of the larvae, we have localized the source of the esters as the larval salivary glands. A histochemical study describes the glands and confirms the presence of lipids in the glands. Epithelial cells of the gland likely secrete the fatty acids into the lumen of the gland. These results demonstrate the salivary glands to be a reservoir of esters, components of brood pheromone, in honeybee larvae. 相似文献
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C.?Martel J.?M.?Guarini G.?Blanchard P.?G.?Sauriau C.?Trichet S.?Robert P.?Garcia-MeunierEmail author 《Marine Biology》2004,146(1):93-102
Invasive species impacts on native species and communities have been widely recognised for decades and may involve important economical losses. In this study, we examined two marine muricid gastropods: an invader, Ocinebrellus inornatus, and a resident, Ocenebra erinacea. Both species co-occur on French Atlantic coasts and probably have economical impacts on oyster farming areas of the Charente-Maritime region of France. In previous studies, we investigated the introduction source and the expansion patterns of O. inornatus, using molecular markers. However, these studies are not sufficient to fully understand the expansion dynamics of the exotics. The present framework is devoted to comparing life-history traits between the introduced and resident species. Our results first showed that O. inornatus has more favourable traits, such as a better mean growth rate and a higher reproductive effort, in comparison with O. erinacea. These traits may explain the invader establishment and, partly, its spread along the coast of France. Secondly, the resident species drilled a higher rate of oysters than the invader. Finally, the establishment of O. inornatus in France does not seem to be at the expense of O. erinacea because: (1) resources are not limiting in oyster farming areas and (2) there does not appear to be competition by interference between the species.Communicated by O. Kinne, Oldendorf/Luhe 相似文献
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Gentès Sophie Taupiac Julie Colin Yannick André Jean-Marc Guyoneaud Rémy 《Environmental science and pollution research international》2017,24(23):19223-19233
Environmental Science and Pollution Research - Macrophyte floating roots are considered as hotspots for methylmercury (MeHg) production in aquatic ecosystems through microbial activity.... 相似文献
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Nitrate-induced photodegradation of atenolol in aqueous solution: kinetics, toxicity and degradation pathways 总被引:2,自引:0,他引:2
The extensive utilization of β-blockers worldwide led to frequent detection in natural water. In this study the photolysis behavior of atenolol (ATL) and toxicity of its photodegradation products were investigated in the presence of nitrate ions. The results showed that ATL photodegradation followed pseudo-first-order kinetics upon simulated solar irradiation. The photodegradation was found to be dependent on nitrate concentration and increasing the nitrate from 0.5 mM L−1 to 10 mM L−1 led to the enhancement of rate constant from 0.00101 min−1 to 0.00716 min−1. Hydroxyl radical was determined to play a key role in the photolysis process by using isopropanol as molecular probe. Increasing the solution pH from 4.8 to 10.4, the photodegradation rate slightly decreased from 0.00246 min−1 to 0.00195 min−1, probably due to pH-dependent effect of nitrate-induced OH formation. Bicarbonate decreased the photodegradation of ATL in the presence of nitrate ions mainly through pH effect, while humic substance inhibited the photodegradation via both attenuating light and competing radicals. Upon irradiation for 240 min, only 10% reduction of total organic carbon (TOC) can be achieved in spite of 72% transformation rate of ATL, implying a majority of ATL transformed into intermediate products rather than complete mineralization. The main photoproducts of ATL were identified by using solid phase extraction-liquid chromatography-mass spectrometry (SPE-LC-MS) techniques and possible nitrate-induced photodegradation pathways were proposed. The toxicity of the phototransformation products was evaluated using aquatic species Daphnia magna, and the results revealed that photodegradation was an effective mechanism for ATL toxicity reduction in natural waters. 相似文献
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