Desiccation tolerance and possible starvation trade-offs in larvicide resistant Culex and Aedes mosquitoes
Summary: Larvicides are widely used for mosquito control, but resistance development complicates efforts. We investigated the interplay between insecticide resistance and environmental stress in Aedes albopictus, Culex pipiens pipiens, and Culex pipiens molestus. Mosquitoes were selected for resista...
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| Language: | English |
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Elsevier
2025-06-01
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| Series: | iScience |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2589004225007825 |
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| author | Eleni C. Savvidou Charalampos S. Ioannou Lemonia Apocha John S. Terblanche Nikos T. Papadopoulos |
| author_facet | Eleni C. Savvidou Charalampos S. Ioannou Lemonia Apocha John S. Terblanche Nikos T. Papadopoulos |
| author_sort | Eleni C. Savvidou |
| collection | DOAJ |
| description | Summary: Larvicides are widely used for mosquito control, but resistance development complicates efforts. We investigated the interplay between insecticide resistance and environmental stress in Aedes albopictus, Culex pipiens pipiens, and Culex pipiens molestus. Mosquitoes were selected for resistance to diflubenzuron and Bacillus thuringiensis subsp. israelensis, acclimated at four temperatures, and subjected to desiccation and starvation assays. Desiccation and starvation survival were affected by species, sex, and thermal acclimation, but not by larvicide resistance. Larvicide resistance affected starvation survival in Ae. albopictus, which also exhibited higher thermal plasticity under both stressors. Females outlived males across all species and conditions. These findings highlight ecological consequences of larvicide resistance, as it does not compromise stress resistance and thermal plasticity, complicating mosquito control amid climate change. Trade-offs between starvation and desiccation in Ae. albopictus suggests potential mechanistic links between these traits and larvicide mode-of-action. Species-, context- and trait-specific larvicide resistance responses complicates mosquito control efforts. |
| format | Article |
| id | doaj-art-1930e6a1a3854fe688440a2a08a28bf3 |
| institution | DOAJ |
| issn | 2589-0042 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | iScience |
| spelling | doaj-art-1930e6a1a3854fe688440a2a08a28bf32025-08-20T03:09:42ZengElsevieriScience2589-00422025-06-0128611252110.1016/j.isci.2025.112521Desiccation tolerance and possible starvation trade-offs in larvicide resistant Culex and Aedes mosquitoesEleni C. Savvidou0Charalampos S. Ioannou1Lemonia Apocha2John S. Terblanche3Nikos T. Papadopoulos4Laboratory of Entomology and Agricultural Zoology, Department of Agriculture, Crop Production and Rural Environment, University of Thessaly, Volos 38446, GreeceLaboratory of Entomology and Agricultural Zoology, Department of Agriculture, Crop Production and Rural Environment, University of Thessaly, Volos 38446, GreeceLaboratory of Entomology and Agricultural Zoology, Department of Agriculture, Crop Production and Rural Environment, University of Thessaly, Volos 38446, GreeceCentre for Invasion Biology, Department of Conservation Ecology & Entomology, Stellenbosch University, Stellenbosch 7602, South AfricaLaboratory of Entomology and Agricultural Zoology, Department of Agriculture, Crop Production and Rural Environment, University of Thessaly, Volos 38446, Greece; Corresponding authorSummary: Larvicides are widely used for mosquito control, but resistance development complicates efforts. We investigated the interplay between insecticide resistance and environmental stress in Aedes albopictus, Culex pipiens pipiens, and Culex pipiens molestus. Mosquitoes were selected for resistance to diflubenzuron and Bacillus thuringiensis subsp. israelensis, acclimated at four temperatures, and subjected to desiccation and starvation assays. Desiccation and starvation survival were affected by species, sex, and thermal acclimation, but not by larvicide resistance. Larvicide resistance affected starvation survival in Ae. albopictus, which also exhibited higher thermal plasticity under both stressors. Females outlived males across all species and conditions. These findings highlight ecological consequences of larvicide resistance, as it does not compromise stress resistance and thermal plasticity, complicating mosquito control amid climate change. Trade-offs between starvation and desiccation in Ae. albopictus suggests potential mechanistic links between these traits and larvicide mode-of-action. Species-, context- and trait-specific larvicide resistance responses complicates mosquito control efforts.http://www.sciencedirect.com/science/article/pii/S2589004225007825Biological sciencesEntomology |
| spellingShingle | Eleni C. Savvidou Charalampos S. Ioannou Lemonia Apocha John S. Terblanche Nikos T. Papadopoulos Desiccation tolerance and possible starvation trade-offs in larvicide resistant Culex and Aedes mosquitoes iScience Biological sciences Entomology |
| title | Desiccation tolerance and possible starvation trade-offs in larvicide resistant Culex and Aedes mosquitoes |
| title_full | Desiccation tolerance and possible starvation trade-offs in larvicide resistant Culex and Aedes mosquitoes |
| title_fullStr | Desiccation tolerance and possible starvation trade-offs in larvicide resistant Culex and Aedes mosquitoes |
| title_full_unstemmed | Desiccation tolerance and possible starvation trade-offs in larvicide resistant Culex and Aedes mosquitoes |
| title_short | Desiccation tolerance and possible starvation trade-offs in larvicide resistant Culex and Aedes mosquitoes |
| title_sort | desiccation tolerance and possible starvation trade offs in larvicide resistant culex and aedes mosquitoes |
| topic | Biological sciences Entomology |
| url | http://www.sciencedirect.com/science/article/pii/S2589004225007825 |
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