The rich sides of mountain summits – a pan-European view on aspect preferences of alpine plants
WINKLER, Manuela
Universität für Bodenkultur Wien = University of Natural Resources and Life Sciences [Vienne, Autriche] [BOKU]
Universität für Bodenkultur Wien = University of Natural Resources and Life Sciences [Vienne, Autriche] [BOKU]
LAMPRECHT, Andrea
Universität für Bodenkultur Wien = University of Natural Resources and Life Sciences [Vienne, Autriche] [BOKU]
Universität für Bodenkultur Wien = University of Natural Resources and Life Sciences [Vienne, Autriche] [BOKU]
STEINBAUER, Klaus
Universität für Bodenkultur Wien = University of Natural Resources and Life Sciences [Vienne, Autriche] [BOKU]
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Universität für Bodenkultur Wien = University of Natural Resources and Life Sciences [Vienne, Autriche] [BOKU]
WINKLER, Manuela
Universität für Bodenkultur Wien = University of Natural Resources and Life Sciences [Vienne, Autriche] [BOKU]
Universität für Bodenkultur Wien = University of Natural Resources and Life Sciences [Vienne, Autriche] [BOKU]
LAMPRECHT, Andrea
Universität für Bodenkultur Wien = University of Natural Resources and Life Sciences [Vienne, Autriche] [BOKU]
Universität für Bodenkultur Wien = University of Natural Resources and Life Sciences [Vienne, Autriche] [BOKU]
STEINBAUER, Klaus
Universität für Bodenkultur Wien = University of Natural Resources and Life Sciences [Vienne, Autriche] [BOKU]
Universität für Bodenkultur Wien = University of Natural Resources and Life Sciences [Vienne, Autriche] [BOKU]
HÜLBER, Karl
Department of Botany and Biodiversity Research
Vienna Institute for Nature Conservation and Analyses [VINCA]
Department of Botany and Biodiversity Research
Vienna Institute for Nature Conservation and Analyses [VINCA]
THEURILLAT, Jean-Paul
Centre alpien de Phytogéographie [CAP]
Université de Genève = University of Geneva [UNIGE]
Centre alpien de Phytogéographie [CAP]
Université de Genève = University of Geneva [UNIGE]
BREINER, Frank
Swiss Federal Institute for Forest, Snow and Landscape Research WSL
Department of Ecology and Evolution
Swiss Federal Institute for Forest, Snow and Landscape Research WSL
Department of Ecology and Evolution
GUTIÉRREZ GIRÓN, Alba
Universidad Complutense de Madrid = Complutense University of Madrid [Madrid] [UCM]
Universidad Complutense de Madrid = Complutense University of Madrid [Madrid] [UCM]
BENITO ALONSO, José-Luis
Instituto Pirenaico de Ecologìa = Pyrenean Institute of Ecology [Zaragoza] [IPE - CSIC]
Instituto Pirenaico de Ecologìa = Pyrenean Institute of Ecology [Zaragoza] [IPE - CSIC]
GAVILÁN, Rosario G.
Universidad Complutense de Madrid = Complutense University of Madrid [Madrid] [UCM]
Universidad Complutense de Madrid = Complutense University of Madrid [Madrid] [UCM]
GHOSN, Dany
Centre International de Hautes Etudes Agronomiques Méditerranéennes - Institut Agronomique Méditerranéen de Chania [CIHEAM-IAMC]
Centre International de Hautes Etudes Agronomiques Méditerranéennes - Institut Agronomique Méditerranéen de Chania [CIHEAM-IAMC]
KAZAKIS, George
Centre International de Hautes Etudes Agronomiques Méditerranéennes - Institut Agronomique Méditerranéen de Chania [CIHEAM-IAMC]
Centre International de Hautes Etudes Agronomiques Méditerranéennes - Institut Agronomique Méditerranéen de Chania [CIHEAM-IAMC]
VILLAR, Luis
Instituto Pirenaico de Ecologìa = Pyrenean Institute of Ecology [Zaragoza] [IPE - CSIC]
Instituto Pirenaico de Ecologìa = Pyrenean Institute of Ecology [Zaragoza] [IPE - CSIC]
GOTTFRIED, Michael
Universität für Bodenkultur Wien = University of Natural Resources and Life Sciences [Vienne, Autriche] [BOKU]
Universität für Bodenkultur Wien = University of Natural Resources and Life Sciences [Vienne, Autriche] [BOKU]
PAULI, Harald
Universität für Bodenkultur Wien = University of Natural Resources and Life Sciences [Vienne, Autriche] [BOKU]
< Réduire
Universität für Bodenkultur Wien = University of Natural Resources and Life Sciences [Vienne, Autriche] [BOKU]
Langue
en
Article de revue
Ce document a été publié dans
Journal of Biogeography. 2016, vol. 43, n° 11, p. 2261-2273
Wiley
Résumé en anglais
<strong>Aim</strong> In the alpine life zone, plant diversity is strongly determined by local topography and microclimate. We assessed the extent to which aspect and its relatedness to temperature affect plant species ...Lire la suite >
<strong>Aim</strong> In the alpine life zone, plant diversity is strongly determined by local topography and microclimate. We assessed the extent to which aspect and its relatedness to temperature affect plant species diversity, and the colonization and disappearance of species on alpine summits on a pan-European scale. <strong>Location</strong> Mountain summits in Europe's alpine life zone. <strong>Methods</strong> Vascular plant species and their percentage cover were recorded in permanent plots in each cardinal direction on 123 summits in 32 regions across Europe. For a subset from 17 regions, resurvey data and 6-year soil temperature series were available. Differences in temperature sum and Shannon index as well as species richness, colonization and disappearance of species among cardinal directions were analysed using linear mixed-effects and generalised mixed-effects models, respectively. <strong>Results</strong> Temperature sums were higher in east- and south-facing aspects than in the north-facing ones, while the west-facing ones were intermediate; differences were smallest in northern Europe. The patterns of temperature sums among aspects were consistent among years. In temperate regions, thermal differences were reflected by plant diversity, whereas this relationship was weaker or absent on Mediterranean and boreal mountains. Colonization of species was positively related to temperature on Mediterranean and temperate mountains, whereas disappearance of species was not related to temperature. <strong>Main conclusions</strong> Thermal differences caused by solar radiation determine plant species diversity on temperate mountains. Advantages for plants on eastern slopes may result from the combined effects of a longer diurnal period of radiation due to convection cloud effects in the afternoon and the sheltered position against the prevailing westerly winds. In northern Europe, long summer days and low sun angles can even out differences among aspects. On Mediterranean summits, summer drought may limit species numbers on the warmer slopes. Warmer aspects support a higher number of colonization events. Hence, aspect can be a principal determinant of the pace of climate-induced migration processes.< Réduire
Mots clés
Europe
soil temperature
vascular plants
Mots clés en anglais
alpine life zone
climate change
GLORIA
long-term monitoring
slope aspect
species diversity
Origine
Importé de halUnités de recherche