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Un site d'une exceptionnelle beauté : la réserve naturelle du Néouvielle / Pierre Chouard in Revue forestière française, 23 (0) (1971)
[article]
Titre : Un site d'une exceptionnelle beauté : la réserve naturelle du Néouvielle Type de document : Imprimé Auteurs : Pierre Chouard (1903-1983) Année de publication : 1971 Article en page(s) : 159-162 Langues : Français (fre) Catégories : [CBNPMP-Thèmes] Enjeux de conservation des lacs d'altitude
[CBNPMP-Thèmes] Lac d'altitude
[CBNPMP-Géographique] Massif du Néouvielle
[CBNPMP-Géographique] Parc National des PyrénéesLien pérenne : HAL : hal-03395085 / DOI : 10.4267/2042/20555 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=136369
in Revue forestière française > 23 (0) (1971) . - 159-162Chouard, P. 1971. Un site d'une exceptionnelle beauté : la réserve naturelle du Néouvielle. Revue forestière française, 23(0): 159-162.Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité R16724 P-68 Revue Centre de documentation Revues Consultable Documents numériques
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Article (1971)URL The chemical and biological response of two remote mountain lakes in the Southern Central Alps (Italy) to twenty years of changing physical and chemical climate / Aldo Marchetto in Journal of limnology, 63 (1) (2004)
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Titre : The chemical and biological response of two remote mountain lakes in the Southern Central Alps (Italy) to twenty years of changing physical and chemical climate Type de document : Imprimé Auteurs : Aldo Marchetto ; Rosario Mosello ; Michela Rogora ; Marina Manca ; Angela Boggero ; Giuseppe Morabito ; Simona Musazzi ; Gabriele Tartari ; Anna M. Nocentini ; Alessandra Pugnetti ; Roberta Bettinetti ; Pierisa Panzani ; Michele Armiraglio ; Pierluigi Cammarano ; Andrea Lami Année de publication : 2004 Article en page(s) : 77-89 Langues : Anglais (eng) Catégories : [CBNPMP-Thèmes] Lac d'altitude Résumé : Two small high mountain lakes in the Alps were monitored in 1984-2003 to follow their response to changes in human impact, such as deposition of atmospheric pollutants, fish stocking and climate change. The results were compared to occasional samplings performed in the 1940s, and to the remains found in sediment cores. When monitoring started, the most acid-sensitive of them, Lake Paione Superiore, was acidified, with evident effects in its flora and fauna: benthic diatoms assemblage was shifted towards acidophilous species, and zooplankton lost the dominant species, Arctodiaptomus alpinus. Palaeolimnological studies outlined that lake acidification paralleled the increasing input of long-range transported industrial pollutants, traced by spherical carbonaceous particles. On the contrary, the biota of Lake Paione Inferiore appeared to be mainly affected by fish stocking. In the last twenty years, decrease in acid load from the atmosphere led to an improvement in lake water quality, with an increase in both pH and alkalinity. First signs of biological recovery were identified, such as change in diatom flora and appearance of sensitive species among benthic insects. However, climate change and episodic deposition of Saharan dust were important driving factors controlling lake water chemistry. Further monitoring to assess the effects of climate change and of the increasing load of nitrogen and other pollutants is recommended. Lien pérenne : DOI : 10.4081/jlimnol.2004.77 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=152307
in Journal of limnology > 63 (1) (2004) . - 77-89Marchetto, A., Mosello, R., Rogora, M., Manca, M., Boggero, A., Morabito, G., Musazzi, S., Tartari, G., Nocentini, AM., Pugnetti, A., Bettinetti, R., Panzani, P., Armiraglio, M., Cammarano, P., Lami, A. 2004. The chemical and biological response of two remote mountain lakes in the Southern Central Alps (Italy) to twenty years of changing physical and chemical climate. Journal of limnology, 63(1): 77-89.Documents numériques
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Article (2004)URL The effect of increased water level on Isoetes lacustris L. in lake Baciver, Spain / Esperança Gacia i Passola (1996)
Titre : The effect of increased water level on Isoetes lacustris L. in lake Baciver, Spain Type de document : Tiré à part de revue Auteurs : Esperança Gacia i Passola ; Enric Ballesteros (1958-) Année de publication : 1996 Importance : 57-59 Langues : Anglais (eng) Catégories : [CBNPMP-Géographique] Baciver
[CBNPMP-Géographique] Pyrénées
[CBNPMP-Thèmes] Communautés hygrophiles (eau dormante)
[CBNPMP-Thèmes] Enjeux de conservation des lacs d'altitude
[CBNPMP-Thèmes] Lac d'altitude
[CBNPMP-Thèmes] Monitoring, suivi
[CBNPMP-Thèmes] Neige
[CBNPMP-Thèmes] Rôle de la lumière en physiologie végétale
[CBNPMP-Thèmes] SemisMots-clés : Isoetes lacustris L. Résumé : Ten months after flooding lake Baciver, water levels were 5.5 m higher than the previous normal and the area formally occupied by the Isoetes population was reduced. All Isoetes originally present below 0.6 m died, and only plants standing between 5.8 and 6.1 m (new depth) survived. As irradiance decreased, remaining individuals produced fewer leaves, but their biomass production was higher, as leaf length increased in response to the diminished available irradiance. Because leaf mortality was excessive, regeneration capacity, popula- tion performance and dynamics were adversely affected. In 1992, no new production occurred in Isoetes lacustris individu- als surviving after the winter. We suggest that low surface oxy- gen levels at the water column under the ice, and total anoxia below 6 m depth, caused the demise of the I. lacustris population in Lake Baciver. Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=131061 Gacia i Passola, E., Ballesteros, E. 1996. The effect of increased water level on Isoetes lacustris L. in lake Baciver, Spain. Journal of Aquatic Plant Management, 34 : 57-59.Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 12937 Ballesteros Tiré à part Centre de documentation Tirés à part Consultable Documents numériques
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Article (1996)Adobe Acrobat PDF The effect of increased water level on Isoëtes lacustris L. in Lake Baciver, Spain / Esperança Gacia i Passola in Journal of Aquatic Plant Management, 34 (1996)
[article]
Titre : The effect of increased water level on Isoëtes lacustris L. in Lake Baciver, Spain Type de document : Imprimé Auteurs : Esperança Gacia i Passola ; Enric Ballesteros (1958-) Année de publication : 1996 Article en page(s) : 57-59 Langues : Anglais (eng) Catégories : [CBNPMP-Géographique] Baciver
[CBNPMP-Géographique] Pyrénées
[CBNPMP-Thèmes] Communautés hygrophiles (eau dormante)
[CBNPMP-Thèmes] Eaux douces
[CBNPMP-Thèmes] Enjeux de conservation des lacs d'altitude
[CBNPMP-Thèmes] Lac d'altitude
[CBNPMP-Thèmes] Monitoring, suivi
[CBNPMP-Thèmes] Neige
[CBNPMP-Thèmes] Rôle de la lumière en physiologie végétale
[CBNPMP-Thèmes] SemisMots-clés : Isoëtes lacustris L. Résumé : Ten months after flooding lake Baciver, water levels were 5.5 m higher than the previous normal and the area formally occupied by the Isoetes population was reduced. All Isoetes originally present below 0.6 m died, and only plants standing between 5.8 and 6.1 m (new depth) survived. As irradiance decreased, remaining individuals produced fewer leaves, but their biomass production was higher, as leaf length increased in response to the diminished available irradiance. Because leaf mortality was excessive, regeneration capacity, popula- tion performance and dynamics were adversely affected. In 1992, no new production occurred in Isoetes lacustris individu- als surviving after the winter. We suggest that low surface oxy- gen levels at the water column under the ice, and total anoxia below 6 m depth, caused the demise of the I. lacustris population in Lake Baciver. Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=141551
in Journal of Aquatic Plant Management > 34 (1996) . - 57-59Gacia i Passola, E., Ballesteros, E. 1996. The effect of increased water level on Isoëtes lacustris L. in Lake Baciver, Spain. Journal of Aquatic Plant Management, 34: 57-59.Documents numériques
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article (1996)URL
Titre : Towards a microbial conservation perspective in high mountain lakes Type de document : Extrait d'ouvrage Auteurs : Emilio O Casamayor Editeur : Springer Année de publication : 2017 Collection : Advances in global change research num. 62 Importance : 157-180 Catégories : [CBNPMP-Thèmes] Biodiversité
[CBNPMP-Thèmes] Enjeux de conservation des lacs d'altitude
[CBNPMP-Thèmes] Lac d'altitudeRésumé : Microorganisms are fundamental components to maintain the ecological integrity of any ecosystem. Microscopic organisms have been, however, mostly excluded in conservation studies and microbiology has been developed as a scientific discipline lacking a natural history background. The detailed genetic studies carried out in the Aigüestortes i Estany de Sant Maurici National Park and recent works in the mostly scarce literature, show that the mostly oligotrophic and highly diluted waters in high mountain lakes hold a larger microbial phylogenetic uniqueness than expected and are reservoirs of large evolutionary potential, providing an overall natural history perspective for alpine archaea, bacteria, fungi and protists. Microbes arise as an important part of the biological richness of these environments that should be considered as a fundamental component of the natural heritage. Microbial ecologists are now closer than ever to deal with conservation biology concepts such as biological richness, extinction, biotic interactions, and ecosystems management. First insights emerge for establishing the microbial tolerance to different environmental conditions, for estimating which is the potentiality of survival and dispersal abilities in the different species, and for highlighting how the underappreciated microbiota will respond to stresses and disturbances brought by the global change. Warming and eutrophication may jeopardise the most idiosyncratic microbial populations that have found in these (ultra)oligotrophic and diluted systems the most appropriate conditions to thrive. Environmental managers and lawyers, citizen, and stakeholders, in general, have now access to scientifically informed advice for the unseen microbial life in the unexpectedly rich high mountain microbial ecosystems. Lien pérenne : DOI : 10.1007/978-3-319-55982-7_7 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=150766 Casamayor, E.O. 2017. Towards a microbial conservation perspective in high mountain lakes. In: High mountain conservation in a changing world. Springer, [S.l.]: 157-180.Documents numériques
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Chapitre 7 (2017)URL Transferts des polluants organiques persistants de l’atmosphère aux milieux aquatiques de montagne / Johanna Marçais (2017)
PermalinkUtilisation des rivières et des lac pyrénéens pour la création de réservoirs d'énergie / J. Lhériaud (1919)
PermalinkLa végétation du massif du Néouvielle (Hautes-Pyrénées) et de la chaîne frontière du sud de la vallée d'Aure (2e note préliminaire) / Pierre Chouard in Bulletin de la Société botanique de France, 73 (1926)
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