Environmental factors explaining the vegetation patterns in a temperate peatland

Pellerin, Stéphanie; Lagneau, Louis-Adrien; Lavoie, Martin et Larocque, Marie (2009). « Environmental factors explaining the vegetation patterns in a temperate peatland ». Comptes Rendus Biologies, 332(8), pp. 720-731.

Fichier(s) associé(s) à ce document :

Prévisualisation	PDF Télécharger (236kB)

Résumé

Although ombrotrophic temperate peatlands are important ecosystems for maintaining biodiversity in eastern North America, the environmental factors influencing their flora are only partly understood. The relationships between plant species distribution and environmental factors were thus studied within the oldest temperate peatland of Québec. Plant assemblages were identified by cluster analysis while CCA was used to related vegetation gradients to environmental factors. Five assemblages were identified; three typical of open bog and two characterized by more minerotrophic vegetation. Thicker peat deposit was encounter underlying the bog assemblages while higher water table level and percentage of free surface water distinguished the minerotrophic assemblages. Overall, the floristic patterns observed were spatially structured along the margins and the expanse. The most important environmental factors explaining this spatial gradient were the percentage of free surface water and the highest water-table level.

Type:	Article de revue scientifique
Mots-clés ou Sujets:	Bog, Environmental gradients, Canonical correspondence analyses, Plant assemblages, Québec
Unité d'appartenance:	Faculté des sciences > Département des sciences de la Terre et de l'atmosphère
Déposé par:	Marie Larocque
Date de dépôt:	27 sept. 2016 14:51
Dernière modification:	01 nov. 2016 13:41
Adresse URL :	http://archipel.uqam.ca/id/eprint/8910

Modifier les métadonnées (propriétaire du document)

Statistiques