Auteur Penélope González-Sampériz
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Documents disponibles écrits par cet auteur (3)
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est un extrait de Le changement climatique dans les Pyrénées : impact, vulnérabilités et adaptation : bases de connaissances pour la future stratégie d'adaptation au changement climatique dans les Pyrénées / Observatoire pyrénéen du changement climatique (OPCC) (2018)
Titre : Écosystèmes sensibles de haute montagne: lacs et tourbières Type de document : Extrait d'ouvrage Auteurs : Blas L. Valero-Garcés ; David Amouroux ; Laure Gandois ; Didier Galop ; Gaël Le Roux (1978-) ; Lluis Camarero ; Jordi Catalán ; Jesus Miguel Santamaria ; David Elustondo ; Alberto de Diego ; Ana Moreno ; Fernando Barreiro-Lostres ; Pablo Corella ; Penélope González-Sampériz ; Ana Avila Castells ; Olaia Liñero ; Felip Marisol Année de publication : 2018 Importance : 58-65 Catégories : [CBNPMP-Thématique] Conservation et gestion des espaces
[CBNPMP-Thématique] Enjeux de conservation des lacs d'altitude
[CBNPMP-Thématique] Lac d'altitude
[CBNPMP-Thématique] Tourbières hautes actives, végétation bord de lacs et rivières, marais, tourbières et sourcesRésumé : Les lacs et les tourbières de haute montagne sont des éléments emblématiques des paysages pyrénéens. Ils sont très vulnérables aux changements climatiques et à l’augmentation des pressions humaines. Depuis des millénaires, ils jouent un rôle essentiel de maintien de la biodiversité, contribuent au stockage de carbone, constituent des ressources en eau. Ces zones humides ont constitué des lieux nécessaires pour l’activité pastorale et plus récemment, elles sont devenues des ressources touristiques. Leur conservation dans le cadre d’un développement durable des montagnes est un défi et une occasion de sensibiliser le public aux effets du changement global sur ces territoires considérés à tort comme vierges de tout impact humain. Identifiant : HAL : hal-02461479 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=151758 Valero-Garcés, B.L., Amouroux, D., Gandois, L., Galop, D., Le Roux, G., Camarero, L., Catalán, J., Santamaria, J.M., Elustondo, D., Diego, A.d., Moreno, A., Barreiro-Lostres, F., Corella, P., González-Sampériz, P., Avila Castells, A., Liñero, O., Marisol, F., 2018 . Écosystèmes sensibles de haute montagne: lacs et tourbières. In: Le changement climatique dans les Pyrénées : impact, vulnérabilités et adaptation : bases de connaissances pour la future stratégie d'adaptation au changement climatique dans les Pyrénées. : 58-65.Documents numériques
Chapitre 2.5 (2018)URLHabitats hold an evolutionary signal of past climatic refugia / María Begoña García in Biodiversity and conservation, 31 (2022)
Titre : Habitats hold an evolutionary signal of past climatic refugia Type de document : Imprimé Auteurs : María Begoña García ; Hector Miranda ; Manuel Pizarro ; Xavier Font i Castell ; Cristina Roquet ; Penélope González-Sampériz Année de publication : 2022 Article en page(s) : 1665-1688 Langues : Anglais (eng) Catégories : [CBNPMP-Thématique] Endémisme
[CBNPMP-Thématique] Habitats
[CBNPMP-Thématique] Phylogénie (liens existant entre espèces apparentées)
[CBNPMP-Thématique] Forêts (habitat)Résumé : Climatic refugia have often been associated with hotspots of richness and endemism, and identified on the basis of molecular or paleobotanical information. Here, we apply a phylogenetic analysis to 18,000 plant communities distributed across the Pyrenees, a south European mountain range, to identify climatic refugia from imprints of relictuality inferred from species’ evolutionary distinctiveness (ED). We produced a genus-level phylogenetic tree to calculate the standardized mean ED value of plant communities (cED). Then, we explored which habitats concentrate the plant communities with the highest cED and the interrelated effect of past (long-term climatic stability) and present (topographic and spatial position) factors. Results show strong differences of cED among habitats: forests ranked first, followed by some open habitats like high altitude wetlands. Climate stability and roughness positively influenced cED. A weak negative association resulted between the two diversity measurements (richness and endemism rate) and also with cED. We propose that forests acted as “mobile refugia” during the glacial-interglacial periods, supported by paleoenvironmental reconstructions revealing continuous presence at regional scale of key broad-leaved trees at that time. Azonal habitats like the endemic-poor humid communities at high elevation would have also played an important role as more permanent microrefugia. Our approach identifies a variety of habitats and plant assemblages that have successfully withstood past climate change in different ways, and therefore would hold an important evolutionary potential to cope with current climate change. Given their potential role in preserving biodiversity, they should be integrated in future conservation agendas. Identifiant : DOI : 10.1007/s10531-022-02419-4 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=148886
in Biodiversity and conservation > 31 (2022) . - 1665-1688García, M.B., Miranda, H., Pizarro, M., Font i Castell, X., Roquet, C., González-Sampériz, P., 2022 . Habitats hold an evolutionary signal of past climatic refugia. Biodiversity and conservation, 31: 1665-1688.Documents numériques
Article (2022)URL
Titre : Human and climate-environment interactions in Pyrenean landscapes: a Lateglacial-Holocene multiproxy reconstruction Type de document : Imprimé Auteurs : Irene Julián-Posada ; Graciela Gil-Romera ; Ana Moreno ; Bérengère Leys ; Blas L. Valero-Garcés ; Penélope González-Sampériz Année de publication : 2026 Article en page(s) : 7411-7446 Langues : Anglais (eng) Catégories : [CBNPMP-Géographique] Pyrénées
[CBNPMP-Thématique] Changement climatique
[CBNPMP-Thématique] PaysagesRésumé : Mountain ecosystems present a complex challenge in disentangling the drivers of their long-term transformation. The subalpine belt of the Pyrenees, once forested, is now characterised by a mosaic of forest patches and open landscapes, and has represented a key region in herding practices until the last century, when land-use changes have led to a reforestation of this area. However, the relative contributions of climate and human activity in driving its change remain intensely contested. We present a high-resolution, multi-proxy reconstruction of landscape dynamics over the last 25 000 years from the southern Pyrenees. We have integrated mammal herbivores, fire regime and vegetation dynamics through sedimentary ancient DNA, pollen and charcoal analyses. With this approach, we aim to compare these proxies and identify the timing and drivers of vegetation change and to distinguish anthropogenic from climatic forces. Our results reveal a multi-phase evolution, with Lateglacial and postglacial forest expansion followed by Mid-Holocene openness, initially triggered by the cooling at the initial phase of the Neoglacial period, but subsequently maintained by pastoral activities. We find that humans opportunistically exploited this openness from the Mid-Holocene onwards, later transitioning to active landscape management through fires and grazing. This study demonstrates that current Pyrenean landscapes are not a product of exclusively humans or climate, but of their synergy over millennia. Effective conservation strategies must integrate an understanding of this deep ecological history with the emulation of traditional practices to preserve these unique, human-shaped biodiversity hotspots. Identifiant : DOI : 10.5194/bg-23-7411-2026 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=156473
in Biogeosciences > 23 (20) (2026) . - 7411-7446Julián-Posada, I., Gil-Romera, G., Moreno, A., Leys, B., Valero-Garcés, B.L., González-Sampériz, P., 2026 . Human and climate-environment interactions in Pyrenean landscapes: a Lateglacial-Holocene multiproxy reconstruction. Biogeosciences, 23(20): 7411-7446.Documents numériques
Article (2026)URL
