Contribution à l'étude de l'écologie des Bryophytes dans les champs cultivés du Chablais vaudois

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Etat: Public
Version: de l'auteur
ID Serval
serval:BIB_B4F179C73166
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Contribution à l'étude de l'écologie des Bryophytes dans les champs cultivés du Chablais vaudois
Périodique
Bulletin de la Société Vaudoise des Sciences Naturelles
Auteur(s)
Parisod C., Streiff A.
ISSN
0037-9603
Statut éditorial
Publié
Date de publication
2002
Volume
88
Numéro
1
Pages
1-17
Langue
français
Résumé
While Switzerland presents a great Bryodiversity, some important aspects of Bryophyte ecology are almost unknown. Bryophyte flora of arable fields has been particularly neglected and studies are of great interest since numerous species can inhabit this type of open environment. Moreover, because of the reduced competition and the notable predictability of life conditions, some endangered Bryophytes species could maintain viable populations in this type of artificial and extensively simplified landscapes, particularly on temporarily flooded soils. 16 Bryophytes species have been sampled in 5 stability-contrasted stations of the Chablais vaudois. The stations were visited twice (spring and summer) and the dynamic of these communities has been extrapolated from these data. Attempts to (i) link the species sampled in the Chablais vaudois with described phytosociological associations and (ii) explain their distribution by simple ecological factors such as plowing frequency and soil water content are discussed. Since these factors are strongly implicated in ecosystem stability and predictability, they select species with adapted life strategies and are thought to be relevant to explain a great part of the observed diversity and dynamic of arable field Bryophyte communities.
Mots-clé
Europe , Switzerland , Bryophyta , Plant sociology , Population dynamics , Flood , Endangered species , Rare species , Anthropogenic factor , Biodiversity , Flora , Cultivated field ,
Création de la notice
20/01/2008 15:17
Dernière modification de la notice
20/08/2019 15:23
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