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Auteur Patrick Saccone (1976-) |
Documents disponibles écrits par cet auteur (2)
Affiner la rechercheAcer negundo invasion along a successional gradient: Early direct facilitation by native pioneers and late indirect facilitation by conspecifics / Patrick Saccone in New Phytologist, 187 (3) (2010)
Titre : Acer negundo invasion along a successional gradient: Early direct facilitation by native pioneers and late indirect facilitation by conspecifics Type de document : Numérique Auteurs : Patrick Saccone (1976-) ; Jean-Philippe Pages ; Jacky Girel ; Jean-Jacques Brun ; Richard Michalet Année de publication : 2010 Article en page(s) : 13 p. Langues : Anglais (eng) Catégories : [CBNPMP-Thématique] Plantes subspontanées, naturalisées, envahissantes Mots-clés : Acer negundo L., 1753 Identifiant : DOI : 10.1111/j.1469-8137.2010.03289.x / HAL : hal-02667702
Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=142781
in New Phytologist > 187 (3) (2010) . - 13 p.Saccone, Patrick (1976-), Pages, Jean-Philippe, Girel, Jacky, Brun, Jean-Jacques, Michalet, Richard 2010 Acer negundo invasion along a successional gradient: Early direct facilitation by native pioneers and late indirect facilitation by conspecifics. New Phytologist, 187(3): 13 p..Documents numériques
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Titre : Limited impact of microtopography on alpine plant distribution Type de document : Imprimé Auteurs : Kryštof Chytrý ; Norbert Helm ; Karl Hülber ; Dietmar Moser ; Johannes Wessely ; Johannes Hausharter ; Andreas Kollert ; Andreas Mayr ; Martin Rutzinger ; Manuela Winkler ; Harald Pauli ; Patrick Saccone (1976-) ; Mariana Paetzolt ; Peter Hietz ; Stefan Dullinger Année de publication : 2024 Article en page(s) : e06744 Langues : Anglais (eng) Résumé : Complex topography regulates near-surface temperature above the treeline. It may thus sustain microrefugia for alpine plants and relax the need of shifting upward when the climate warms. The effectiveness of these microrefugia rests on the premise that plant distributions in alpine landscapes are mainly controlled by fine-scale topographic variation.
We tested this assumption by relating the distribution of 79 plant species and 10 community attributes across 900 1 m² plots in a landscape spanning 1677 m of elevation to 17 topographical descriptors at resolutions between 1 and 301 m.
We found that the presence of most species and most community attributes were better explained by topographic variation at coarser scales (> 20 m). Fine-scale topography is more clearly reflected in moisture than in temperature requirements of species. The elevational gradient rather than topographic variation at any scale, is the single most important driver of both species distributions and the variation in community attributes in the area studied.
We hypothesise that our results reveal a hitherto underestimated influence of spatial mass effects on alpine plant distributions. These effects can override environmental filtering at fine scales and will thus impede the survival of cold-adapted plants in small and fragmented refugia under climate warming.Identifiant : DOI : 10.1111/ecog.06744 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=155512
in Ecography > (2024) . - e06744Chytrý, Kryštof, Helm, Norbert, Hülber, Karl, Moser, Dietmar, Wessely, Johannes, Hausharter, Johannes, Kollert, Andreas, Mayr, Andreas, Rutzinger, Martin, Winkler, Manuela, Pauli, Harald, Saccone, Patrick (1976-), Paetzolt, Mariana, Hietz, Peter, Dullinger, Stefan 2024 Limited impact of microtopography on alpine plant distribution. Ecography: e06744.Documents numériques
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