Détail de l'auteur
Auteur Jordi Catalán |
Documents disponibles écrits par cet auteur (10)
Affiner la rechercheAspectos generales de la limnología invernal de dos lagos pirenaicos morfológicamente muy distintos (estany Redó y estany Baciver) / Enric Ballesteros (1990)
Titre : Aspectos generales de la limnología invernal de dos lagos pirenaicos morfológicamente muy distintos (estany Redó y estany Baciver) Type de document : Tiré à part de revue Auteurs : Enric Ballesteros (1958-) ; Jordi Catalán ; Lluis Camarero ; E. García Année de publication : 1990 Importance : 55-68 Langues : Espagnol (spa) Catégories : [CBNPMP-Géographique] Baciver
[CBNPMP-Géographique] Pyrénées
[CBNPMP-Géographique] Redó
[CBNPMP-Thématique] Communautés hygrophiles (eau dormante)Résumé : El estudio del periodo invemal en dos lagos pirenaicos de caractensticas tróficas y de mineralizaci6n similares, pero morfológicamente muy distintos, ha permitido comparar la influencia de la profundidad y la tasa de renovación del agua sobre algunos aspectos caracteristicos de este periodo: el decrecimiento de la biomasa fitoplanctónica, el consumo de oxigeno, la supervivencia de macrófitos, etc. Las distintas fases de la dinámica de la cubierta (formación del hielo, acumulación y metamorfismo de la nieve, los procesos de inundación y hundimiento, el deshielo) afectaron de distinta manera los procesos bajo el hielo en los dos lagos. Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=131063 Ballesteros, Enric (1958-), Catalán, Jordi, Camarero, Lluis, García, E. 1990 Aspectos generales de la limnología invernal de dos lagos pirenaicos morfológicamente muy distintos (estany Redó y estany Baciver). Scientia gerundensis, 16(2) : 55-68.Documents numériques
Consultable
Article (1990)Adobe Acrobat PDFAtmospheric phosphorus deposition may cause lakes to revert from phosphorus limitation back to nitrogen limitation / Lluis Camarero in Nature communications, 3 (2012)
Titre : Atmospheric phosphorus deposition may cause lakes to revert from phosphorus limitation back to nitrogen limitation Type de document : Imprimé Auteurs : Lluis Camarero ; Jordi Catalán Année de publication : 2012 Article en page(s) : 1118 Langues : Français (fre) Catégories : [CBNPMP-Thématique] Enjeux de conservation des lacs d'altitude Résumé : Recent findings indicate that increased atmospheric deposition of nitrogen of human origin has caused changes in the pattern of ecological nutrient limitation in lakes in the northern hemisphere. An increase in the nitrogen to phosphorus ratio, and hence a shift from pristine nitrogen limitation to human-induced phosphorus limitation of phytoplankton growth, seems to have been driven by deposition of atmospheric nitrogen. These findings challenge the classical paradigm of lake phytoplankton productivity being naturally limited by phosphorus availability. However, atmospheric phosphorus deposition may also be highly relevant. Here we show how dissolved inorganic nitrogen concentration has decreased in the Pyrenean lake district over recent decades, despite there being an increase in deposition of atmospheric nitrogen. This is related to an increased atmospheric phosphorus load in the lake water, as a result of higher atmospheric inputs. These changes are causing phytoplankton to revert from being phosphorus-limited to being nitrogen-limited. Identifiant : DOI : 10.1038/ncomms2125 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=150956
in Nature communications > 3 (2012) . - 1118Camarero, Lluis, Catalán, Jordi 2012 Atmospheric phosphorus deposition may cause lakes to revert from phosphorus limitation back to nitrogen limitation. Nature communications, 3: 1118.Documents numériques
Consultable
Article (2012)URL
Titre : Attenuation of ultraviolet radiation in mountain lakes: Factors controlling the among- and within-lake variability Type de document : Imprimé Auteurs : Isabelle Laurion ; Marc Ventura ; Jordi Catalán ; Roland Psenner (1950-) ; Ruben Sommaruga Année de publication : 2000 Article en page(s) : 1274-1288 Langues : Anglais (eng) Catégories : [CBNPMP-Thématique] Enjeux de conservation des lacs d'altitude Résumé : High-altitude lakes are exposed to high fluence rates of solar ultraviolet radiation (UVR; 29–400 nm) and contain low concentrations of dissolved organic carbon (DOC). While in most lowland lakes, DOC can be used to predict UV transparency with sufficient accuracy, current models fail to estimate UVR in clear alpine lakes. In these lakes, phytoplankton may contribute significantly to the UV attenuation either as particles or as a source of chromophoric dissolved organic matter (CDOM) with distinctive properties. We investigated a series of 26 lakes in the Alps and Pyrenees, situated at elevations ranging from 422 to 2,799 m above sea level and having DOC concentrations ranging from 0.2 to 3.5 mg L−1. CDOM, as measured by the absorptivity of filtered lake water, explained most of the variability in the attenuation of underwater UVR among lakes (r2 = 0.94, P < 0.001). However, within-lake variation in the UV attenuation revealed a significant contribution from phytoplankton in deeper waters (UV attenuation increasing with chlorophyll a concentration; r2 = 0.97, P = 0.002), only apparent when DOC concentrations were low (∼0.3 mg L−1). The DOC-specific absorptivity (ag*) was also important for characterizing the optical conditions in this series of lakes. Epilimnetic values of ag* were significantly lower in lakes located at high elevations (with low allochthonous CDOM inputs from the catchment), compared to lakes surrounded by trees and meadows. Moreover, ag* was generally lower in surface waters than in deeper water layers, suggesting the influence of photobleaching on UV transparency. The slope S of the exponential regression between CDOM absorptivity and wavelength did not show clear patterns, such as found in marine systems, and often presented lower values in the epilimnetic waters (in association with lower ag*). Collectively, our results suggest that in transparent alpine lakes, the dynamics of the CDOM pool and phytoplankton production will have a strong effect on temporal changes in UV underwater attenuation. Identifiant : DOI : 10.4319/lo.2000.45.6.1274 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=150993
in Limnology and oceanography > 45 (6) (2000) . - 1274-1288Laurion, Isabelle, Ventura, Marc, Catalán, Jordi, Psenner, Roland (1950-), Sommaruga, Ruben 2000 Attenuation of ultraviolet radiation in mountain lakes: Factors controlling the among- and within-lake variability. Limnology and oceanography, 45(6): 1274-1288.Documents numériques
Article (2000)URL
Titre : Ecology under lake ice Type de document : Imprimé Auteurs : Stephanie E. Hampton ; Aaron W. E. Galloway ; Stephen M. Powers ; Ted Ozersky ; Kara H. Woo ; Ryan D. Batt ; Stephanie G. Labou ; Catherine M. O'Reilly ; Sapna Sharma ; Noah R. Lottig ; Emily H. Stanley ; Rebecca L. North ; Jason D. Stockwell ; Rita Adrian ; Gesa A. Weyhenmeyer ; Lauri Arvola ; Helen M. Baulch ; Isabella Bertani ; Larry L., Jr Bowman ; Cayelan C. Carey ; Jordi Catalán ; William Colom-Montero ; Leah M. Domine ; Marisol Felip ; Ignacio Granados ; Corinna Gries ; Hans-Peter Grossart ; Juta Haberman ; Marina Haldna ; Brian Hayden ; Scott N. Higgins ; Jeff C. Jolley ; Kimmo K. Kahilainen ; Enn Kaup ; Michael J. Kehoe ; Sally MacIntyre ; Anson W. Mackay ; Heather L. Mariash ; Robert M. McKay ; Brigitte Nixdorf ; Tiina Nõges ; Michelle Palmer ; Don C. Pierson ; David M. Post ; Matthew J. Pruett ; Milla Rautio ; Jordan S. Read ; Sarah L. Roberts ; Jacqueline Rücker ; Steven A. Sadro ; Eugene A. Silow ; Derek E. Smith ; Robert W. Sterner ; George E. A. Swann ; Maxim A. Timofeyev ; Manuel Toro ; Michael R. Twiss ; Richard J. Vogt ; Erika J. Whiteford ; Marguerite A. Xenopoulos Année de publication : 2017 Article en page(s) : 98-111 Langues : Anglais (eng) Catégories : [CBNPMP-Thématique] Enjeux de conservation des lacs d'altitude Résumé : Winter conditions are rapidly changing in temperate ecosystems, particularly for those that experience periods of snow and ice cover. Relatively little is known of winter ecology in these systems, due to a historical research focus on summer ‘growing seasons’. We executed the first global quantitative synthesis on under-ice lake ecology, including 36 abiotic and biotic variables from 42 research groups and 101 lakes, examining seasonal differences and connections as well as how seasonal differences vary with geophysical factors. Plankton were more abundant under ice than expected; mean winter values were 43.2% of summer values for chlorophyll a, 15.8% of summer phytoplankton biovolume and 25.3% of summer zooplankton density. Dissolved nitrogen concentrations were typically higher during winter, and these differences were exaggerated in smaller lakes. Lake size also influenced winter-summer patterns for dissolved organic carbon (DOC), with higher winter DOC in smaller lakes. At coarse levels of taxonomic aggregation, phytoplankton and zooplankton community composition showed few systematic differences between seasons, although literature suggests that seasonal differences are frequently lake-specific, species-specific, or occur at the level of functional group. Within the subset of lakes that had longer time series, winter influenced the subsequent summer for some nutrient variables and zooplankton biomass. Identifiant : DOI : 10.1111/ele.12699 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=150982
in Ecology Letters > 20 (2017) . - 98-111Hampton, Stephanie E., Galloway, Aaron W. E., Powers, Stephen M., Ozersky, Ted, Woo, Kara H., Batt, Ryan D., Labou, Stephanie G., O'Reilly, Catherine M., Sharma, Sapna, Lottig, Noah R., Stanley, Emily H., North, Rebecca L., Stockwell, Jason D., Adrian, Rita, Weyhenmeyer, Gesa A., Arvola, Lauri, Baulch, Helen M., Bertani, Isabella, Bowman, Larry L., Jr, Carey, Cayelan C., Catalán, Jordi, Colom-Montero, William, Domine, Leah M., Felip, Marisol, Granados, Ignacio, Gries, Corinna, Grossart, Hans-Peter, Haberman, Juta, Haldna, Marina, Hayden, Brian, Higgins, Scott N., Jolley, Jeff C., Kahilainen, Kimmo K., Kaup, Enn, Kehoe, Michael J., MacIntyre, Sally, Mackay, Anson W., Mariash, Heather L., McKay, Robert M., Nixdorf, Brigitte, Nõges, Tiina, Palmer, Michelle, Pierson, Don C., Post, David M., Pruett, Matthew J., Rautio, Milla, Read, Jordan S., Roberts, Sarah L., Rücker, Jacqueline, Sadro, Steven A., Silow, Eugene A., Smith, Derek E., Sterner, Robert W., Swann, George E. A., Timofeyev, Maxim A., Toro, Manuel, Twiss, Michael R., Vogt, Richard J., Whiteford, Erika J., Xenopoulos, Marguerite A. 2017 Ecology under lake ice. Ecology Letters, 20: 98-111.Documents numériques
Article (2017)URL
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, Blas L., Amouroux, David, Gandois, Laure, Galop, Didier, Le Roux, Gaël (1978-), Camarero, Lluis, Catalán, Jordi, Santamaria, Jesus Miguel, Elustondo, David, Diego, Alberto de, Moreno, Ana, Barreiro-Lostres, Fernando, Corella, Pablo, González-Sampériz, Penélope, Avila Castells, Ana, Liñero, Olaia, Marisol, Felip 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
Consultable
Chapitre 2.5 (2018)URL
Titre : High mountain conservation in a changing world Type de document : Numérique Auteurs : Jordi Catalán ; Josep Maria Ninot i Sugrañes (1955-) ; Mercè Aniz Editeur : Springer Année de publication : 2017 Collection : Advances in global change research num. 62 Importance : 413 p. ISBN/ISSN/EAN : 978-3-319-85796-1 Langues : Anglais (eng) Catégories : [CBNPMP-Thématique] Changement climatique
[CBNPMP-Géographique] PyrénéesRésumé : Unique case studies from the Pyrenees providing a view of the main processes involved in the ecosystem shifts in the high mountains. In-depth research into the high mountain experiencing increasing temperatures causing shifts related to atmospheric chemical deposition, land use, and species invasion. A study of how high mountains hold the largest areas for nature conservation, and in many countries are still considered a wilderness. Identifiant : DOI : 10.1007/978-3-319-55982-7 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=148571 Catalán, Jordi, Ninot i Sugrañes, Josep Maria (1955-), Aniz, Mercè , 2017. High mountain conservation in a changing world. Springer, [S.l.]. 413 pp.Documents numériques
Livre (2017)URLHigh mountain lakes and atmospherically transported pollutants / Richard William Battarbee (2005)
Titre : High mountain lakes and atmospherically transported pollutants Type de document : Extrait d'ouvrage Auteurs : Richard William Battarbee (1947-) ; Uli M. Huber ; Harald K. M. Bugmann ; Mel A. Reasoner ; Martin Beniston ; Simon Patrick ; Martin Kernan ; Roland Psenner (1950-) ; Hansjoerg Thies ; Joan Grimalt ; Bjoern O. Rosseland ; Bente Wathne ; Jordi Catalán ; Rosario Mosello ; Andrea Lami ; David Livingstone ; Evzen Stuchlik ; Vera Straskrabova ; Gunnar Raddum Editeur : Dordrecht : Springer Netherlands Année de publication : 2005 Importance : 113-121 Catégories : [CBNPMP-Thématique] Enjeux de conservation des lacs d'altitude
[CBNPMP-Thématique] Etude d'aménagement, étude d'impact, actions anthropiques et leur impact
[CBNPMP-Thématique] Lac d'altitudeRésumé : Remote mountain lakes, whether found at high altitudes or high latitudes, usually appear to be in pristine condition. In particular, those lakes that are situated above or beyond the tree-line are rarely disturbed by agricultural or forestry practices and few if any people inhabit their catchments. However, recent research indicates that even the most remote lakes are impacted by atmospherically transported pollutants, and that greenhouse-gas forced climate change is beginning to have a significant influence on ecosystem functioning. UV-B radiation is also increasing and, in interaction with global warming, may already be changing biogeochemical cycles in many mountain lakes (Vinebrooke and Leavitt, this volume). All sites are subject to multiple stresses, and studies of the ecological response of mountain lakes to such combined stress need to consider interactions between all factors, both natural and anthropogenic. In this chapter, we consider acid deposition, toxic substances and climate change as the three main drivers of ecosystem change in high mountain lakes. Identifiant : DOI : 10.1007/1-4020-3508-X_12 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=147857 Battarbee, Richard William (1947-), Huber, Uli M., Bugmann, Harald K. M., Reasoner, Mel A., Beniston, Martin, Patrick, Simon, Kernan, Martin, Psenner, Roland (1950-), Thies, Hansjoerg, Grimalt, Joan, Rosseland, Bjoern O., Wathne, Bente, Catalán, Jordi, Mosello, Rosario, Lami, Andrea, Livingstone, David, Stuchlik, Evzen, Straskrabova, Vera, Raddum, Gunnar 2005 High mountain lakes and atmospherically transported pollutants. In: Global change and mountain regions. Springer Netherlands, Dordrecht: 113-121.
Titre : High mountain lakes: extreme habitats and witnesses of environmental changes Type de document : Imprimé Auteurs : Jordi Catalán ; Lluis Camarero ; Marisol Felip ; Sergi Pla ; Marc Ventura ; Teresa Buchaca ; Frederic Bartumeus ; Guillermo de Mendoza ; Alexandre Miró ; Emilio O Casamayor ; Juan Manuel Medina-Sánchez ; Montserrat Bacardit ; Maddi Altuna ; Mireia Bartrons ; Daniel Díaz de Quijano Année de publication : 2006 Article en page(s) : 35 Langues : Français (fre) Catégories : [CBNPMP-Thématique] Changement climatique
[CBNPMP-Thématique] Enjeux de conservation des lacs d'altitude
[CBNPMP-Thématique] Lac d'altitudeRésumé : High mountain lakes offer research opportunities beyond what could be expected from their quantitative relevance in the Earth system. In this article we present a brief summary of the research carried out in the lakes of the Pyrenees in the last twenty years by the group of limnology of the Centre for High Mountain Research (CRAM) of the University of Barcelona. The studies can be included in three main topics: life in extreme conditions, catchment-lake relationships and environmental changes. Identifiant : DOI : 10.23818/limn.25.38 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=147856
in Limnética > 25 (1-2) (June 2006) . - 35Catalán, Jordi, Camarero, Lluis, Felip, Marisol, Pla, Sergi, Ventura, Marc, Buchaca, Teresa, Bartumeus, Frederic, Mendoza, Guillermo de, Miró, Alexandre, Casamayor, Emilio O, Medina-Sánchez, Juan Manuel, Bacardit, Montserrat, Altuna, Maddi, Bartrons, Mireia, de Quijano, Daniel Díaz 2006 High mountain lakes: extreme habitats and witnesses of environmental changes. Limnética, 25(1-2): 35.Documents numériques
Article (2006)URL
Titre : Limnology in the pyrenean lakes Type de document : Tiré à part de revue Auteurs : Jordi Catalán ; Enric Ballesteros (1958-) ; Lluis Camarero ; Marisol Felip ; Esperança Gacia i Passola Année de publication : 1992 Importance : 27-38 Langues : Anglais (eng) Catégories : [CBNPMP-Thématique] Eaux douces Mots-clés : Isoëtes Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=134195 Catalán, Jordi, Ballesteros, Enric (1958-), Camarero, Lluis, Felip, Marisol, Gacia i Passola, Esperança 1992 Limnology in the pyrenean lakes. Limnética, 8 : 27-38.Documents numériques
Article (1992)URL
Titre : Scientists' warning of threats to mountains Type de document : Imprimé Auteurs : Dirk S. Schmeller ; Davnah Urbach ; Kieran A. Bates ; Jordi Catalán ; Dan Cogălniceanu ; Matthew C. Fisher ; Jan Friesen ; Leopold Füreder ; Veronika Gaube ; Marilen Haver ; Dean Jacobsen ; Gaël Le Roux (1978-) ; Yu-Pin Lin ; Adeline Loyau ; Oliver Machate ; Andreas Mayer ; Ignacio Palomo ; Christoph Plutzar ; Hugo Sentenac ; Ruben Sommaruga ; Rocco Tiberti ; William Ripple Année de publication : 2022 Article en page(s) : 158611 Langues : Anglais (eng) Catégories : [CBNPMP-Thématique] Montagne
[CBNPMP-Thématique] Enjeux de conservation des lacs d'altitude
[CBNPMP-Thématique] Changement climatique
[CBNPMP-Thématique] Relation homme-environnementRésumé : Mountains are an essential component of the global life-support system. They are characterized by a rugged, heterogenous landscape with rapidly changing environmental conditions providing myriad ecological niches over relatively small spatial scales. Although montane species are well adapted to life at extremes, they are highly vulnerable to human derived ecosystem threats. Here we build on the manifesto ‘World Scientists' Warning to Humanity’, issued by the Alliance of World Scientists, to outline the major threats to mountain ecosystems. We highlight climate change as the greatest threat to mountain ecosystems, which are more impacted than their lowland counterparts. We further discuss the cascade of “knock-on” effects of climate change such as increased UV radiation, altered hydrological cycles, and altered pollution profiles; highlighting the biological and socio-economic consequences. Finally, we present how intensified use of mountains leads to overexploitation and abstraction of water, driving changes in carbon stock, reducing biodiversity, and impacting ecosystem functioning. These perturbations can provide opportunities for invasive species, parasites and pathogens to colonize these fragile habitats, driving further changes and losses of micro- and macro-biodiversity, as well further impacting ecosystem services. Ultimately, imbalances in the normal functioning of mountain ecosystems will lead to changes in vital biological, biochemical, and chemical processes, critically reducing ecosystem health with widespread repercussions for animal and human wellbeing. Developing tools in species/habitat conservation and future restoration is therefore essential if we are to effectively mitigate against the declining health of mountains. Identifiant : DOI : 10.1016/j.scitotenv.2022.158611 / HAL : hal-03795426v1
Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=152131
in Science of the total environment > 853 (20 December 2022) . - 158611Schmeller, Dirk S., Urbach, Davnah, Bates, Kieran A., Catalán, Jordi, Cogălniceanu, Dan, Fisher, Matthew C., Friesen, Jan, Füreder, Leopold, Gaube, Veronika, Haver, Marilen, Jacobsen, Dean, Le Roux, Gaël (1978-), Lin, Yu-Pin, Loyau, Adeline, Machate, Oliver, Mayer, Andreas, Palomo, Ignacio, Plutzar, Christoph, Sentenac, Hugo, Sommaruga, Ruben, Tiberti, Rocco, Ripple, William 2022 Scientists' warning of threats to mountains. Science of the total environment, 853: 158611.Documents numériques
Consultable
Article (2022)URL
