The Effect of Cover Crops on the Biodiversity and Abundance of Ground-Dwelling Arthropods in a Mediterranean Pear Orchard
| Autor: | Elena López-Gallego, Luis de Pedro, Luis Gabriel Perera-Fernández, María Pérez-Marcos, Juan Antonio Sanchez |
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| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
pear pests Biodiversity biological control natural enemies 01 natural sciences lcsh:Agriculture Diversity index Abundance (ecology) ground-dwelling arthropods Cover crop pitfall traps PEAR biology business.industry lcsh:S Pest control 04 agricultural and veterinary sciences biology.organism_classification 010602 entomology Linyphiidae Agronomy 040103 agronomy & agriculture 0401 agriculture forestry and fisheries cover crops Orchard ecosystem services business Agronomy and Crop Science |
| Zdroj: | Agronomy Volume 10 Issue 4 Agronomy, Vol 10, Iss 580, p 580 (2020) |
| ISSN: | 2073-4395 |
| DOI: | 10.3390/agronomy10040580 |
| Popis: | The intensification of agriculture has led to the reduction of the diversity of arthropods in agroecosystems, including that of ground-dwelling species. The aim of our work was to assess the effect of a sown cover crop on the diversity of ground-dwelling arthropods, including key predators for pest control in pear orchards. The trial was carried out in a pear orchard divided in three blocks two treatments (cover-cropping and control) were implemented in each block. A seed mixture of 10 plant species was used in the plots with the sown cover. The densities of ground-dwelling arthropods were sampled using pitfall traps. The ground cover had a significant impact on the diversity and abundance of arthropods. The Shannon&ndash Wiener diversity index was significantly higher for the cover than for the control plots. Several families of spiders (Linyphiidae, Lycosidae), beetles (Carabidae, Staphylinidae) and hymenopterans (Scelionidae) were significantly more abundant in the cover-sown plots. Ants and collembola had a significantly higher abundance in the control plots. Some of these groups arthropods (ants and spiders), are represented by species that may commute between ground and pear trees, having an impact on pest control. The use of cover crops is encouraged to enhance biodiversity in farmlands. |
| Databáze: | OpenAIRE |
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