Divergent responses to urbanisation and forest cover shape the spatial distribution of Culex pipiens ecotypes in western Switzerland
Antoine Perrin, Clara Deillon, Philippe Christe, Olivier Glaizot · 2026
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Description
Antoine Perrin, with three colleagues, reports a 2026 field study of two mosquito forms in western Switzerland. The Culex pipiens complex carries West Nile and Usutu viruses in Europe. Its two forms differ in habitat taste, one leaning urban and one natural, and they can cross-breed. Past work rarely split them along a clear landscape gradient.
Traps ran at 57 sites from May to September 2025, and gene tests told the forms apart. Farm landscapes suited all forms and hybrids. City growth favoured the pipiens form but not molestus, which ran against the usual story. Forest cover cut the share of hybrids. Warmth raised the presence of all forms, while rain showed no effect. The split results warn that virus risk maps must treat each form on its own terms.
Catalog record
| CREATOR | Antoine Perrin, Clara Deillon, Philippe Christe, Olivier Glaizot |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 36579 |
| LICENSE | https://creativecommons.org/publicdomain/zero/1.0 |
| RIGHTS | CC0 |
| SOURCE | Europe PMC |