HAL : hal-00496438, version 1

DOI : 10.1016/j.pedobi.2009.12.007

CEMOA : http://cemadoc.irstea.fr/cemoa/PUB00028854

Fiche détaillée

Récupérer au format BibTeX - EndNote - TEI - RefWorks -

Pedobiologia 53, 5 (2010) p. 337 - p. 341

The biodiversity of dictyostelids in mountain forests: a case study in the French Alps

Y. Paillet 1, M. Satre 2

(2010)

Forest management can seriously modify the biodiversity of forest dwelling species, but the consequences are poorly known for certain taxa, particularly soil fauna, for which few studies have been published. We compared the biodiversity of dictyostelids cellular slime moulds in a managed and an unmanaged forest in the French Alps and analysed the influence of environmental factors on species richness and abundance of dictyostelids. To our knowledge, this study is the first one undertaken in the European Alps. We must better understand the influence of various environmental factors on the biodiversity of these organisms if we want to accurately define their functional role in the soil. In our study, dictyostelids showed lower levels of diversity compared to previously published results. The mean species richness of dictyostelids was marginally higher in unmanaged than in managed forests and biodiversity indices were significantly correlated with elevation and pH. This suggests that environmental factors have a predominant effect on the biodiversity of dictyostelids and that the effect of forest management is secondary.

1 :	Ecosystèmes montagnards (UR EMGR)
	CEMAGREF
2 :	Biochimie et biophysique des systèmes intégrés (BBSI)
	CNRS : UMR5092 – CEA : DSV/IRTSV – Université Joseph Fourier - Grenoble I

Domaine

:

Sciences de l'environnement Sciences de l'environnement/Biodiversité et Ecologie

Mots Clés : FORET DE MONTAGNE – BIODIVERSITE – RICHESSE SPECIFIQUE – ABONDANCE D'ESPECE – MICROFAUNE – GESTION FORESTIERE – EXPLOITATION FORESTIERE – FORET VIERGE – FACTEUR DE L'ENVIRONNEMENT – SOL DE FORET – SOL DE MONTAGNE – PH – FAGUS SYLVATICA – ABIES ALBA – PICEA ABIES – CHAMPIGNON – ALPES FRANCAISES – DICTYOSTELIDS – FOREST MANAGEMENT – MIXED BEECH-FIR-SPRUCE STANDS – ELEVATION

hal-00496438, version 1

http://hal.archives-ouvertes.fr/hal-00496438

oai:hal.archives-ouvertes.fr:hal-00496438

Contributeur : Import Ws Irstea <>

Déposé pour le compte de : Irstea Depot-HAL <>

Soumis le : Mercredi 30 Juin 2010, 15:41:23

Dernière modification le : Mercredi 30 Juin 2010, 17:02:49