Predation on <i>Drosophila suzukii</i> within Hedges in the Agricultural Landscape
The invasive <i>Drosophila suzukii</i> feeds and reproduces on various cultivated and wild fruits and moves between agricultural and semi-natural habitats. Hedges in agricultural landscapes play a vital role in the population development of <i>D. suzukii</i>, but also harbor...
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| Format: | Article |
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MDPI AG
2021-03-01
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| Series: | Insects |
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| Online Access: | https://www.mdpi.com/2075-4450/12/4/305 |
| _version_ | 1797539539913277440 |
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| author | Alexandra Siffert Fabian Cahenzli Patrik Kehrli Claudia Daniel Virginie Dekumbis Barbara Egger Jana Furtwengler Camille Minguely Nicola Stäheli Franco Widmer Dominique Mazzi Jana Collatz |
| author_facet | Alexandra Siffert Fabian Cahenzli Patrik Kehrli Claudia Daniel Virginie Dekumbis Barbara Egger Jana Furtwengler Camille Minguely Nicola Stäheli Franco Widmer Dominique Mazzi Jana Collatz |
| author_sort | Alexandra Siffert |
| collection | DOAJ |
| description | The invasive <i>Drosophila suzukii</i> feeds and reproduces on various cultivated and wild fruits and moves between agricultural and semi-natural habitats. Hedges in agricultural landscapes play a vital role in the population development of <i>D. suzukii</i>, but also harbor a diverse community of natural enemies. We investigated predation by repeatedly exposing cohorts of <i>D. suzukii</i> pupae between June and October in dry and humid hedges at five different locations in Switzerland. We sampled predator communities and analyzed their gut content for the presence of <i>D. suzukii</i> DNA based on the COI marker. On average, 44% of the exposed pupae were predated. Predation was higher in dry than humid hedges, but did not differ significantly between pupae exposed on the ground or on branches and among sampling periods. Earwigs, spiders, and ants were the dominant predators. Predator communities did not vary significantly between hedge types or sampling periods. DNA of <i>D. suzukii</i> was detected in 3.4% of the earwigs, 1.8% of the spiders, and in one predatory bug (1.6%). While the molecular gut content analysis detected only a small proportion of predators that had fed on <i>D. suzukii</i>, overall predation seemed sufficient to reduce <i>D. suzukii</i> populations, in particular in hedges that provide few host fruit resources. |
| first_indexed | 2024-03-10T12:46:23Z |
| format | Article |
| id | doaj.art-489d17c4ed7a42a881eec90fb1a4514c |
| institution | Directory Open Access Journal |
| issn | 2075-4450 |
| language | English |
| last_indexed | 2024-03-10T12:46:23Z |
| publishDate | 2021-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Insects |
| spelling | doaj.art-489d17c4ed7a42a881eec90fb1a4514c2023-11-21T13:25:11ZengMDPI AGInsects2075-44502021-03-0112430510.3390/insects12040305Predation on <i>Drosophila suzukii</i> within Hedges in the Agricultural LandscapeAlexandra Siffert0Fabian Cahenzli1Patrik Kehrli2Claudia Daniel3Virginie Dekumbis4Barbara Egger5Jana Furtwengler6Camille Minguely7Nicola Stäheli8Franco Widmer9Dominique Mazzi10Jana Collatz11Research Division Agroecology and Environment, Agroscope, Reckenholzstrasse 191, 8046 Zürich, SwitzerlandDepartment of Crop Sciences, FiBL, Research Institute of Organic Agriculture, Ackerstrasse 113, 5070 Frick, SwitzerlandResearch Division Plant Protection, Agroscope, Route de Duillier 50, 1260 Nyon, SwitzerlandDepartment of Crop Sciences, FiBL, Research Institute of Organic Agriculture, Ackerstrasse 113, 5070 Frick, SwitzerlandResearch Division Plant Protection, Agroscope, Route des Eterpys 18, 1964 Conthey, SwitzerlandCompetence Division Plants and Plant Products, Agroscope, Müller-Thurgau-Strasse 29, 8820 Wädenswil, SwitzerlandDepartment of Crop Sciences, FiBL, Research Institute of Organic Agriculture, Ackerstrasse 113, 5070 Frick, SwitzerlandResearch Division Plant Protection, Agroscope, Route des Eterpys 18, 1964 Conthey, SwitzerlandCompetence Division Plants and Plant Products, Agroscope, Müller-Thurgau-Strasse 29, 8820 Wädenswil, SwitzerlandMolecular Ecology, Agroscope, Reckenholzstrasse 191, 8046 Zürich, SwitzerlandResearch Division Plant Protection, Agroscope, Müller-Thurgau-Strasse 29, 8820 Wädenswil, SwitzerlandResearch Division Agroecology and Environment, Agroscope, Reckenholzstrasse 191, 8046 Zürich, SwitzerlandThe invasive <i>Drosophila suzukii</i> feeds and reproduces on various cultivated and wild fruits and moves between agricultural and semi-natural habitats. Hedges in agricultural landscapes play a vital role in the population development of <i>D. suzukii</i>, but also harbor a diverse community of natural enemies. We investigated predation by repeatedly exposing cohorts of <i>D. suzukii</i> pupae between June and October in dry and humid hedges at five different locations in Switzerland. We sampled predator communities and analyzed their gut content for the presence of <i>D. suzukii</i> DNA based on the COI marker. On average, 44% of the exposed pupae were predated. Predation was higher in dry than humid hedges, but did not differ significantly between pupae exposed on the ground or on branches and among sampling periods. Earwigs, spiders, and ants were the dominant predators. Predator communities did not vary significantly between hedge types or sampling periods. DNA of <i>D. suzukii</i> was detected in 3.4% of the earwigs, 1.8% of the spiders, and in one predatory bug (1.6%). While the molecular gut content analysis detected only a small proportion of predators that had fed on <i>D. suzukii</i>, overall predation seemed sufficient to reduce <i>D. suzukii</i> populations, in particular in hedges that provide few host fruit resources.https://www.mdpi.com/2075-4450/12/4/305biological controlpredatorsmolecular gut content analysisearwigsspiderspredatory bugs |
| spellingShingle | Alexandra Siffert Fabian Cahenzli Patrik Kehrli Claudia Daniel Virginie Dekumbis Barbara Egger Jana Furtwengler Camille Minguely Nicola Stäheli Franco Widmer Dominique Mazzi Jana Collatz Predation on <i>Drosophila suzukii</i> within Hedges in the Agricultural Landscape Insects biological control predators molecular gut content analysis earwigs spiders predatory bugs |
| title | Predation on <i>Drosophila suzukii</i> within Hedges in the Agricultural Landscape |
| title_full | Predation on <i>Drosophila suzukii</i> within Hedges in the Agricultural Landscape |
| title_fullStr | Predation on <i>Drosophila suzukii</i> within Hedges in the Agricultural Landscape |
| title_full_unstemmed | Predation on <i>Drosophila suzukii</i> within Hedges in the Agricultural Landscape |
| title_short | Predation on <i>Drosophila suzukii</i> within Hedges in the Agricultural Landscape |
| title_sort | predation on i drosophila suzukii i within hedges in the agricultural landscape |
| topic | biological control predators molecular gut content analysis earwigs spiders predatory bugs |
| url | https://www.mdpi.com/2075-4450/12/4/305 |
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