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Title: Dry grasslands of the central valleys of the Alps from a European perspective : the example of Ausserberg (Valais, Switzerland)
Authors : Dengler, Jürgen
Widmer, Stefan
Staubli, Eline
Babbi, Manuel
Gehler, Jamyra
Hepenstrick, Daniel
Bergamini, Ariel
Billeter, Regula
Boch, Steffen
Rohrer, Sven
Dembicz, Iwona
et. al : No
Published in : Hacquetia
Volume(Issue) : 18
Issue : 2
Pages : 155
Pages to: 177
Publisher / Ed. Institution : Založba ZRC
Issue Date: Jul-2019
License (according to publishing contract) : CC BY-NC-ND 4.0: Attribution - Non commercial - No derivatives 4.0 International
Type of review: Peer review (publication)
Language : English
Subjects : Trockenrasen; Wallis
Subject (DDC) : 577: Ecology
Abstract: The upper Rhone valley in the Swiss canton of Valais is one of the driest and most continental of the inner-alpine valleys and harbours a rich xerothermic flora. We studied syntaxonomy and ecology of dry grasslands and their species richness patterns. In 2018 we recorded 28 vegetation plots (10 m²) and three nested-plot series of 0.0001 to 100 m² on the south-facing slopes above the village of Ausserberg. Mean richness of all species ranged from 1.7 on 1 cm² to 47.3 on 100 m², with little contribution of bryophytes and lichens. The species-area relationship for total richness closely followed a power function. Modified TWINSPAN yielded a three-cluster solution, which could easily be matched with three orders of the class Festuco- Brometea: Stipo pulcherrimae-Festucetalia pallentis (xeric, rocky), Festucetalia valesiacae (xeric, non-rocky) and Brachypodietalia pinnati (meso-xeric). The subdivision of the xeric types into two orders is new for Swiss dry grasslands, where these types up to now had been joined in a single alliance Stipo-Poion within the Festucetalia valesiacae.
Departement: Life Sciences and Facility Management
Organisational Unit: Institute of Natural Resource Sciences (IUNR)
Publication type: Article in scientific journal
DOI : 10.2478/hacq-2019-0008
ISSN: 1581-4661
Appears in Collections:Publikationen Life Sciences und Facility Management

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