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Pirineos : revista de ecologÃa de montaña / Instituto de estudios pirenaicos (Espagne) . vol. 168Mention de date : Année 2013Paru le : 01/11/2013 |
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Ajouter le résultat dans votre panierPatterns of endemism along an elevation gradient in Sierre Nevada (Spain) and Lefka Ori (Crete, Greece) / Maria Rosa Fernà ndez-Calzado in Pirineos : revista de ecologÃa de montaña, vol. 168 (Année 2013)
[article]
Titre : Patterns of endemism along an elevation gradient in Sierre Nevada (Spain) and Lefka Ori (Crete, Greece) Type de document : Livre Auteurs : Maria Rosa Fernà ndez-Calzado, Auteur ; D. Ghosn ; M. Gottfried, Auteur ; G. Kazakis, Auteur ; JoaquÃn Molero Mesa, Auteur ; H. Pauli, Auteur ; A. Merzouki, Auteur Année de publication : 2013 Article en page(s) : pp. 7-24 Langues : Anglais Catégories : [ZG] Espagne
[ZG] Grèce
[Thèmes] Bassin méditerranéen
[Thèmes] Flore vasculaire (phanérogames et cryptogames vasculaires)Mots-clés : endémisme richesse en espèces montagne île programme GLORIA changement climatique Résumé : "Aim: High mountains in the Mediterranean region of Europe areparticularly rich in endemic vascular plants. We aimed to compare the altitudinalpatterns of vascular plant species richness and the proportion of endemic species intwo Mediterranean region: Lefka Ori on the island of Crete (Greece) and SierraNevada on the Iberian peninsula. Location: Sierra Nevada, Granada (Spain); Lefka Ori, Crete (Greece).
Methods: Data from standardised permanent plots settings on summit sites (comprising eight plot sectors, covering the upeermost 10 altitudinal metres) of different elevations were used (GLORIA Multi-Summit approach; www.gloria.ac.at). Species numbers, rates of endemic species, and soils temperature were compared by means of ANCOV A and linear regression.
Results: The two regions, though climatically similar, showed strikingly different patterns: In Sierra Nevada, the proportion of endemic vascular plants (species restricted to Sierra Nevada) showed a stepwise increase from the lowest to the highest summit. In contrast, the proportion of endemic species restricted to Crete was not significantly different between the four summits in Lefka Ori. In both regions the observed trends were largely consistent with the altitudinal distribution of the endemic species obtained from standard floras.
Main conclusions: The geographic positions of the two regions, i.e. island versus mainland and the higher elevation of Sierra Nevada are suggested to be the primary causes of the observed differences. The high degree of endemism in the cold environments of Mediterranean mountains’ upper bioclimatic zones indicates a pronounced vulnerability to the impacts of climate change. A continued and intensified species monitoring in the mountains around the Mediterranean basin, therefore, should be considered as a priority research task." (source : auteurs)Type de publication : périodique Référence biblio : Fernà ndez-Calzado M., Ghosn D., Gottfried M., Kazakis G., Molero Mesa J., Pauli H., Merzouki A., 2013 - Patterns of endemism along an elevation gradient in Sierre Nevada (Spain) and Lefka Ori (Crete, Greece). Pirineos : revista de ecologÃa de montaña, 168 : 7-24. ID PMB : 56367 DOI : 10.3989/Pirineos.2013.168001 Permalink : http://www.cbnbrest.fr/catalogue_en_ligne/index.php?lvl=notice_display&id=56367
in Pirineos : revista de ecologÃa de montaña > vol. 168 (Année 2013) . - pp. 7-24[article]Exemplaires
Cote Localisation Disponibilité P0163 Brest Exclu du prêt Comparative state of the status of Pinus uncinata Ram. Potentially protective against snow of a zone Andorra and Catalonia (NE of Spain) / R. Blanco in Pirineos : revista de ecologÃa de montaña, vol. 168 (Année 2013)
[article]
Titre : Comparative state of the status of Pinus uncinata Ram. Potentially protective against snow of a zone Andorra and Catalonia (NE of Spain) Type de document : Livre Auteurs : R. Blanco, Auteur ; J. Pemà n, Auteur ; F. Rodriguez, Auteur ; A. Aunos, Auteur Année de publication : 2013 Article en page(s) : pp. 39-57 Langues : Espagnol Catégories : [Espèces (in biblio)] Pinus uncinata Ramond ex DC.
[ZG] Péninsule ibérique
[Thèmes] PyrénéesMots-clés : analyse multivariée distribution diamétrique mortalité Résumé : "A comparative study was carried out among stands of Pinus uncinata Ram. located, respectively, in La Massana (Andorra) and in the Catalonian Pyrenees, and give these sites an important role against snow avalanches. To check if there exist some differential attributes between Andorran and Catalonian sites, a dendrometric database was generated from sampling (Andorra) and from the information provided by the Third Forest National Inventory (Catalonian Pyrenees). As for their tendency towards uneven-aged stand structure, both geographical regions are quite similar. In fact, stand regeneration is not associated to other stocking variables, and stand stocking is not closely linked to the altitudinal gradient (which little affects mortality). However, Catalonian stands have shown less stocking and, in general, they offer worse characteristics for their protective role against avalanches compared with the Andorran stands." (source : auteurs) Type de publication : périodique Référence biblio : Blanco R., Pemà n J., Rodriguez F., Aunos A., 2013 - Comparative state of the status of Pinus uncinata Ram. Potentially protective against snow of a zone Andorra and Catalonia (NE of Spain). Pirineos : revista de ecologÃa de montaña, 168 : 39-57. ID PMB : 56368 DOI : 10.3989/Pirineos.2013.168003 Permalink : http://www.cbnbrest.fr/catalogue_en_ligne/index.php?lvl=notice_display&id=56368
in Pirineos : revista de ecologÃa de montaña > vol. 168 (Année 2013) . - pp. 39-57[article]Exemplaires
Cote Localisation Disponibilité P0163 Brest Exclu du prêt
Exemplaires
Cote | Localisation | Disponibilité |
---|---|---|
P0163 | Brest | Exclu du prêt |