The Effect of Cover Crops on the Biodiversity and Abundance of Ground-Dwelling Arthropods in a Mediterranean Pear Orchard

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...

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Main Authors: Luis de Pedro, Luis Gabriel Perera-Fernández, Elena López-Gallego, María Pérez-Marcos, Juan Antonio Sanchez
Format: Article
Language:English
Published: MDPI AG 2020-04-01
Series:Agronomy
Subjects:
Online Access:https://www.mdpi.com/2073-4395/10/4/580
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author Luis de Pedro
Luis Gabriel Perera-Fernández
Elena López-Gallego
María Pérez-Marcos
Juan Antonio Sanchez
author_facet Luis de Pedro
Luis Gabriel Perera-Fernández
Elena López-Gallego
María Pérez-Marcos
Juan Antonio Sanchez
author_sort Luis de Pedro
collection DOAJ
description 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–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.
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spelling doaj.art-37110e5ed16c4b7f84e357ac8d25f1682023-11-19T22:00:23ZengMDPI AGAgronomy2073-43952020-04-0110458010.3390/agronomy10040580The Effect of Cover Crops on the Biodiversity and Abundance of Ground-Dwelling Arthropods in a Mediterranean Pear OrchardLuis de Pedro0Luis Gabriel Perera-Fernández1Elena López-Gallego2María Pérez-Marcos3Juan Antonio Sanchez4Department of Crop Protection, Biological Control and Ecosystem Services, Instituto Murciano de Investigación y Desarrollo Agrario y Alimentario, C/Mayor s/n, La Alberca, 30150 Murcia, SpainDepartment of Crop Protection, Biological Control and Ecosystem Services, Instituto Murciano de Investigación y Desarrollo Agrario y Alimentario, C/Mayor s/n, La Alberca, 30150 Murcia, SpainDepartment of Crop Protection, Biological Control and Ecosystem Services, Instituto Murciano de Investigación y Desarrollo Agrario y Alimentario, C/Mayor s/n, La Alberca, 30150 Murcia, SpainDepartment of Crop Protection, Biological Control and Ecosystem Services, Instituto Murciano de Investigación y Desarrollo Agrario y Alimentario, C/Mayor s/n, La Alberca, 30150 Murcia, SpainDepartment of Crop Protection, Biological Control and Ecosystem Services, Instituto Murciano de Investigación y Desarrollo Agrario y Alimentario, C/Mayor s/n, La Alberca, 30150 Murcia, SpainThe 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–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.https://www.mdpi.com/2073-4395/10/4/580ground-dwelling arthropodspitfall trapscover cropsecosystem servicesnatural enemiespear pests
spellingShingle Luis de Pedro
Luis Gabriel Perera-Fernández
Elena López-Gallego
María Pérez-Marcos
Juan Antonio Sanchez
The Effect of Cover Crops on the Biodiversity and Abundance of Ground-Dwelling Arthropods in a Mediterranean Pear Orchard
Agronomy
ground-dwelling arthropods
pitfall traps
cover crops
ecosystem services
natural enemies
pear pests
title The Effect of Cover Crops on the Biodiversity and Abundance of Ground-Dwelling Arthropods in a Mediterranean Pear Orchard
title_full The Effect of Cover Crops on the Biodiversity and Abundance of Ground-Dwelling Arthropods in a Mediterranean Pear Orchard
title_fullStr The Effect of Cover Crops on the Biodiversity and Abundance of Ground-Dwelling Arthropods in a Mediterranean Pear Orchard
title_full_unstemmed The Effect of Cover Crops on the Biodiversity and Abundance of Ground-Dwelling Arthropods in a Mediterranean Pear Orchard
title_short The Effect of Cover Crops on the Biodiversity and Abundance of Ground-Dwelling Arthropods in a Mediterranean Pear Orchard
title_sort effect of cover crops on the biodiversity and abundance of ground dwelling arthropods in a mediterranean pear orchard
topic ground-dwelling arthropods
pitfall traps
cover crops
ecosystem services
natural enemies
pear pests
url https://www.mdpi.com/2073-4395/10/4/580
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