Not All Field Margins Are Equally Useful: Effects of the Vegetation Structure of Margins on Cereal Aphids and Their Natural Enemies.

Autor: Salat-Moltó A; Agroecology Group, Botany and Mycology Unit, Department of Evolutionary Biology, Ecology and Environmental Sciences, Faculty of Biology, Universitat de Barcelona, Av. Diagonal 643, 08028 Barcelona, Spain.; Institut de Recerca de la Biodiversitat (IRBio), Faculty of Biology, Universitat de Barcelona, 08028 Barcelona, Spain., Caballero-López B; Department of Arthropods, Natural Sciences Museum of Barcelona, Castell Dels Tres Dragons, Av. Picasso, 08003 Barcelona, Spain., Pérez-Hidalgo N; Institute for Integrative Systems Biology, C. Catedrático José Beltrán, University of Valencia CSIC, Paterna, 46980 Valencia, Spain., Michelena JM; Department of Entomology and Pest Control, Cavanilles Institute of Biodiversity and Evolutionary Biology, University of Valencia, 46022 Valencia, Spain., Ferrer Suay M; Department of Zoology, Faculty of Biological Sciences, University of Valencia, Campus de Burjassot-Paterna, Dr. Moliner 50, Burjassot, 46100 Valencia, Spain., Guerrieri E; Institute for Sustainable Plant Protection, National Research Council of Italy, 10135 Turin, Italy.; Department of Life Sciences, the Natural History Museum, London SW7 5BD, UK., Blanco-Moreno JM; Agroecology Group, Botany and Mycology Unit, Department of Evolutionary Biology, Ecology and Environmental Sciences, Faculty of Biology, Universitat de Barcelona, Av. Diagonal 643, 08028 Barcelona, Spain.; Institut de Recerca de la Biodiversitat (IRBio), Faculty of Biology, Universitat de Barcelona, 08028 Barcelona, Spain.
Jazyk: angličtina
Zdroj: Insects [Insects] 2023 Feb 03; Vol. 14 (2). Date of Electronic Publication: 2023 Feb 03.
DOI: 10.3390/insects14020156
Abstrakt: Differences in the semi-natural vegetation of field margins will affect the biological control services derived from the presence of these semi-natural habitats adjacent to fields. Of the plant functional traits that are most relevant for insects, plant life forms reflect different aspects of plant structure and functioning that can help predict the value of marginal vegetation for arthropods in agricultural systems. The aim of this study was to determine the effect of the vegetation structure of field margins on cereal aphids and on some of their natural enemies (parasitoids, hoverflies and ladybugs) in terms of plant life forms. We characterized margin vegetation using the relative cover of each life form and sampled insects in crops along transects parallel to field margins. Our results show that in the studied areas, the abundance of natural enemies was greater near margins dominated by annual plants than in margins dominated by perennial plants. On the other hand, the abundances of aphids and parasitism rates were higher near margins dominated by perennial woody plants than near margins dominated by perennial herbaceous plants. By promoting specific life forms in existing margins, farmers can enhance the conservation biological control and relieve aphid pressure on their crops.
Databáze: MEDLINE
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