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Isolated cork oak trees affect soil properties and biodiversity in a Mediterranean wooded grassland

TitoloIsolated cork oak trees affect soil properties and biodiversity in a Mediterranean wooded grassland
Tipo di pubblicazioneArticolo su Rivista peer-reviewed
Anno di Pubblicazione2015
AutoriRossetti, Ivo, Bagella S., Cappai C., Caria M.C., Lai R., Roggero P.P., P. da Silva Martins, Sousa J.P., Querner P., and Seddaiu G.
RivistaAgriculture, Ecosystems and Environment
Volume202
Paginazione203-216
ISSN01678809
Parole chiaveagricultural ecosystem, Animalia, arthropod, Biodiversity, Collembola, community composition, deciduous tree, ecosystem service, grassland, isolated population, litter, Mediterranean environment, Quercus, Quercus suber, soil fauna, soil organic matter, soil property
Abstract

Mediterranean wooded grasslands are multipurpose systems that support high plant and animal diversity levels and are habitats of European importance (i.e., 6310 - Dehesas with evergreen Quercus spp.). Moreover, these systems offer a number of agro-ecosystem services such as forage production, soil carbon sequestration, nutrient recycling and soil protection. The scattered trees enhance the ecological complexity of grassland influencing the soil properties, the herbaceous layer diversity and composition and the soil communities. Understanding how isolated trees influence the other components of the system is essential to comprehend their role supporting high levels of above and below ground biodiversity and ecosystem services. In the present study, we present a hypothetical framework of the effects of isolated trees on soil properties, plant and soil fauna assemblages, the latter here represented by the class Collembola. The floor litter and the associated input of organic matter to the soil was a key factor linking the components of the tree-soil-biodiversity system in a Mediterranean cork oak wooded grassland.Topsoil C increased by +50% under the tree canopy in comparison with the areas beyond the tree canopy. Plant diversity was lower under tree canopy, but contributed to enhance the total species richness of the grassland. Collembolan diversity was higher under the peculiar conditions beneath the tree canopy. Relationships between plant and collembolan species emerged. The findings of this study suggest that isolated trees have direct and indirect effects on soil properties, plant and collembolan assemblages, hence they can influence the ecological processes of wooded grasslands, with implications for food webs, nutrient cycling and productivity of the agro-ecosystem. © 2015 Elsevier B.V.

Note

cited By 58

URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84921502741&doi=10.1016%2fj.agee.2015.01.008&partnerID=40&md5=9383f1ee0a6c25e6088f6c4ae5c1b874
DOI10.1016/j.agee.2015.01.008
Citation KeyRossetti2015203