Articles

Articles 281 records found  beginprevious269 - 278next  jump to record: Search took 0.00 seconds. 
269.
13 p, 372.3 KB Warming and drought alter C and N concentration, allocation and accumulation in a Mediterranean shrubland / Sardans i Galobart, Jordi (Centre de Recerca Ecològica i Aplicacions Forestals) ; Peñuelas, Josep (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia) ; Estiarte, Marc (Centre de Recerca Ecologica i Aplicacions Forestals. Ecophysiology and Global Change Unit) ; Prieto, Patricia (Centre de Recerca Ecologica i Aplicacions Forestals. Ecophysiology and Global Change Unit)
We investigated the effects of warming and drought on C and N concentrations, nitrogen use efficiency (NUE), and C and N accumulation in different ecosystem compartments. We conducted a 6-year (1999–2005) field experiment to simulate the climate conditions projected by IPCC models for the coming decades in a Mediterranean shrubland. [...]
2008
Global Change Biology, Vol. 14, Núm. 10 (Octubre 2008) , p. 2304-2316  
270.
19 p, 437.9 KB Response of plant species richness and primary productivity in shrublands along a north–south gradient in Europe to seven years of experimental warming and drought: reductions in primary productivity in the heat and drought year of 2003 / Peñuelas, Josep (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia) ; Prieto, Patricia (Centre de Recerca Ecològica i Aplicacions Forestals) ; Beier, Claus (RISØ National Laboratory) ; Cessaraccio, Carla (National Research Council of Italy. Institute of Biometeorology) ; De Angelis, Paolo (University of Tuscia. Department of Forest Environment and Resources) ; De Dato, Giovanbattista (University of Tuscia. Department of Forest Environment and Resources) ; Emmett, Bridget A. (Centre for Ecology and Hydrology-Bangor) ; Estiarte, Marc (Centre de Recerca Ecològica i Apicacions Forestals) ; Garadnai, János (Hungarian Academy of Sciences. Institute of Ecology and Botany) ; Gorissen, Antonie (Plant Research International) ; Lang, Edit Kovacs (Hungarian Academy of Sciences. Institute of Ecology and Botany) ; Kröel-Dulay, György (Hungarian Academy of Sciences. Institute of Ecology and Botany) ; Llorens, Laura (Centre de Recerca Ecològica i Apicacions Forestals) ; Pellizaro, Grazia (National Research Council of Italy. Institute of Biometeorology) ; Riis-Nielsen, Torben (University of Copenhagen. University of Copenhagen) ; Schmidt, Inger K. (University of Copenhagen. University of Copenhagen) ; Sirca, Constantino (Univeristy of Sassari. Department of Economics and Tree Crops) ; Sowerby, Alwyn (Centre for Ecology and Hydrology-Bangor) ; Spano, Donatella (Univeristy of Sassari. Department of Economics and Tree Crops) ; Tietema, Albert (Universiteit van Amsterdam. Center for Geo-ecological Research)
We used a nonintrusive field experiment carried out at six sites – Wales (UK), Denmark (DK), the Netherlands (NL), Hungary (HU), Sardinia (Italy – IT), and Catalonia (Spain – SP) – along a climatic and latitudinal gradient to examine the response of plant species richness and primary productivity to warming and drought in shrubland ecosystems. [...]
2007
Global Change Biology, Vol. 13, Núm. 12 (Desembre 2007) , p. 2563-2581  
271.
13 p, 316.7 KB Monoterpene emissions from rubber trees (Hevea brasiliensis) in a changing landscape and climate: chemical speciation and environmental control / Wang, Yong-Feng (Chinese Academy of Sciences. Xishuangbanna Tropical Botanical Garden) ; Owen, Susan M. (Centre de Recerca Ecològica i Aplicacions Forestals. Unitat d'Ecofisiologia i Canvi Global) ; Li, Qing-Jun (Chinese Academy of Sciences. Xishuangbanna Tropical Botanical Garden) ; Peñuelas, Josep (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia)
Emissions of biogenic volatile organic compounds (VOCs) have important roles in ecophysiology and atmospheric chemistry at a wide range of spatial and temporal scales. Tropical regions are a major global source of VOC emissions and magnitude and chemical speciation of VOC emissions are highly plant-species specific. [...]
2007
Global Change Biology, Vol. 13, Núm. 11 (Novembre 2007) , p. 2270-2282  
272.
12 p, 371.7 KB Rapid climate change-related growth decline at the southern range edge of Fagus sylvatica / Jump, Alistair (Centre de Recerca Ecològica i Aplicacions Forestals) ; Hunt, Jenny M. (Centre de Recerca Ecològica i Aplicacions Forestals. Unitat d'Ecofisiologia) ; Peñuelas, Josep (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia)
Studies on Fagus sylvatica show that growth in populations toward the southern limit of this species' distribution is limited strongly by drought. Warming temperatures in the Mediterranean region are expected to exacerbate drought where they are not accompanied by increases in precipitation. [...]
2006
Global Change Biology, Vol. 12, Núm. 11 ( 2006) , p. 2163-2174  
273.
11 p, 214.6 KB Experimental evidence of reduced diversity of seedlings due to climate modification in a Mediterranean-type community / Lloret Maya, Francisco (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia) ; Peñuelas, Josep (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia) ; Estiarte, Marc (Centre de Recerca Ecològica i Aplicacions Forestals. Unitat Ecofisiologia)
We are still lacking in experimental evidence of the effects of climate change on the richness of plant species under field conditions. We report a decrease in the species richness of recruited seedlings in a Mediterranean shrubland in experimentally induced drought and warming over 4 consecutive years. [...]
2004
Global Change Biology, Vol. 10, Núm. 2 (2004) , p. 248-258  
274.
10 p, 956.2 KB A global change-induced biome shift in the Montseny mountains (NE Spain) / Peñuelas, Josep (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia) ; Boada, Martí 1949- (Universitat Autònoma de Barcelona. Departament de Geografia)
Shifts in plant species and biome distribution in response to warming have been described in past climate changes. However, reported evidence of such shifts under current climate change is still scarce. [...]
2003
Global Change Biology, Vol. 9, Núm. 2 (2003) , p. 131-140  
275.
14 p, 536.4 KB Changed plant and animal life cycles from 1952 to 2000 in the Mediterranean region / Peñuelas, Josep (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia) ; Filella Cubells, Iolanda, dir. (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia) ; Comas, Pere (Cardedeu Field Station)
The available data on climate over the past century indicate that the earth is warming. Important biological effects, including changes of plant and animal life cycle events, have already been reported. [...]
2002
Global Change Biology, Vol. 8, Núm. 6 (2002) , p. 531-544  
276.
8 p, 118.7 KB Carbon-based secondary and structural compounds in Mediterranean shrubs growing near a natural CO2 spring / Peñuelas, Josep (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia) ; Castells, Eva (Centre de Recerca Ecològica i Aplicacions Forestals) ; Joffre, R. (Centre d'Ecologie Fonctionnelle et Evolutive-CNRS. DREAM Unit) ; Tognetti, Roberto (Università degli Studi del Molize. Dipartimento di Scienze Animali, Vegetali e dell'Ambiente)
We studied carbon-based secondary and structural compounds (CBSSCs) in Myrtus communis, Erica arborea, and Juniperus communis co-occurring in a natural CO2 spring site and in a nearby control site in a Mediterranean environment. [...]
2002
Global Change Biology, Vol. 8, Núm. 3 (2002) , p. 281-288  
277.
7 p, 130.6 KB Herbaria century record of increasing eutrophication in Spanish terrestrial ecosystems / Peñuelas, Josep (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia) ; Filella Cubells, Iolanda, dir. (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia)
Additional biological evidence is presented for the alteration of biogeochemical cycles by human activities. The leaf δ15N and the concentrations of nutrients in herbarium specimens of 24 species of vascular plants and 3 species of bryophytes collected in northern and eastern regions of Spain have substantially changed throughout the XX century. [...]
2001
Global Change Biology, Vol. 7, Núm. 4 (Abril 2001) , p. 427-433  
278.
11 p, 382.4 KB Leaf mineral concentrations of Erica arborea, Juniperus communis and Myrtus communis growing in the proximity of a natural CO2 spring / Peñuelas, Josep (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia) ; Filella Cubells, Iolanda, dir. (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia) ; Tognetti, Roberto (Università degli Studi del Molize. Dipartimento di Scienze Animali, Vegetali e dell'Ambiente (SAVA))
Leaf mineral concentrations of co-occurring Erica arborea, Juniperus communis and Myrtus communis were measured at bimonthly intervals throughout a year in a natural CO2 spring and in a nearby control site with similar soil chemistry in a Mediterranean environment. [...]
2001
Global Change Biology, Vol. 7, Núm. 3 (2001) , p. 291-301  

Articles : 281 records found   beginprevious269 - 278next  jump to record:
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