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Contrasting land uses in Mediterranean agro-silvo-pastoral systems generated patchy diversity patterns of vascular plants and below-ground microorganisms

Bagella, Simonetta and Filigheddu, Rossella Speranza and Caria, Maria Carmela and Girlanda, Mariangela and Roggero, Pier Paolo (2014) Contrasting land uses in Mediterranean agro-silvo-pastoral systems generated patchy diversity patterns of vascular plants and below-ground microorganisms. Comptes rendus biologies, Vol. 337 (12), p. 717-724. ISSN 1631-0691. eISSN 1768-3238. Article.

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DOI: 10.1016/j.crvi.2014.09.005

Abstract

The aims of this paper were (i) to define how contrasting land uses affected plant biodiversity in Mediterranean agro-silvo-pastoral-systems across a gradient of disturbance regimes: cork oak forests, secondary grasslands, hay crops, grass covered vineyards, tilled vineyards; (ii) to determine whether these patterns mirrored those of below-ground microorganisms and whether the components of γ-diversity followed a similar model. The disturbance regimes affected plant assemblage composition. Species richness decreased with increasing land use intensity, the Shannon index showed the highest values in grasslands and hay crops. Plant assemblage composition patterns mirrored those of Basidiomycota and Ascomycota. Richness in Basidiomycota, denitrifying bacteria and microbial biomass showed the same trend as that observed for vascular plant richness. The Shannon index pattern of below-ground microorganisms was different from that of plants. The plant γ-diversity component model weakly mirrored those of Ascomycota. Patchy diversity patterns suggest that the maintenance of contrasting land uses associated with different productions typical of agro-silvo-pastoral-systems can guarantee the conservation of biodiversity.

Item Type:Article
ID Code:10596
Status:Published
Refereed:Yes
Uncontrolled Keywords:Cork oak forests, grass covered vineyards, grazing, hay crops, secondary grasslands, tilled vineyards
Subjects:Area 05 - Scienze biologiche > BIO/03 Botanica ambientale e applicata
Area 07 - Scienze agrarie e veterinarie > AGR/02 Agronomia e coltivazioni erbacee
Divisions:001 Università di Sassari > 01-a Nuovi Dipartimenti dal 2012 > Agraria
001 Università di Sassari > 01-a Nuovi Dipartimenti dal 2012 > Scienze della Natura e del Territorio
Publisher:Elsevier
ISSN:1631-0691
eISSN:1768-3238
Deposited On:13 Jan 2015 09:49

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