The contribution of cold air pooling to the distribution of a rare and endemic plant of the Alps

Détails

ID Serval
serval:BIB_7D3387BAC4BC
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
The contribution of cold air pooling to the distribution of a rare and endemic plant of the Alps
Périodique
Plant Ecology and Diversity
Auteur(s)
Patsiou T.S., Conti E., Theodoridis S., Randin C.F.
ISSN
1755-1668
ISSN-L
1755-0874
Statut éditorial
Publié
Date de publication
2017
Peer-reviewed
Oui
Volume
10
Numéro
1
Pages
29-42
Langue
anglais
Résumé
Background: The topographic complexity typical of alpine landscapes creates a variety of (micro)climatic conditions that may mitigate the effects of a warming climate on alpine plants via such mechanisms as cold air pooling (CAP).Aims: Our primary objectives were to (1) assess whether landscape potential for CAP as a predictor improved species distribution models (SDMs) projections and (2) quantify the impact of CAP on the microclimate experienced by alpine plants compared to the macroclimate.Methods: We selected the Maritime Alps as our study area, located on the French-Italian border, and its rare endemic plant, Saxifraga florulenta, as model taxon. We generated a spatial layer in GIS (Geographic Information System) that reflected the potential of the landscape for CAP and ran five SDM algorithms with and without CAP layer as a predictor. Second, we recorded the microclimate plants experience with temperature loggers.Results:CAP as a predictor decreased the omission error of SDMs, mostly at low and mid elevations, where topography may buffer extreme temperatures, resulting in a more stable microclimate compared to macroclimate.Conclusions: We have shown that plants in an alpine landscape may be less exposed to climate warming than predicted by macroclimate. Topo-climatic GIS layers for SDM projections in mountain environments should integrate such physical mechanisms as CAP.
Mots-clé
climate change, climate projections, macroclimate, microclimate, mountain terrain, persistence, temperature inversions, topography
Web of science
Création de la notice
21/06/2017 14:34
Dernière modification de la notice
03/03/2018 18:39
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