Now showing items 127-146 of 159

    • Semiempirical modeling of abiotic and biotic factors controlling ecosystem respiration across eddy covariance sites 

      Migliavacca, Mirco; Reichstein, Markus; Richardson, Andrew D.; Colombo, Roberto; Sutton, Mark A.; Lasslop, Gitta; Tomelleri, Enrico; Wohlfahrt, Georg; Carvalhais, Nuno; Cesatti, Alessandro; Mahecha, Miguel D.; Montagnani, Leonardo; Papale, Dario; Zaehle, Sönke; Arain, Altaf; Arneth, Almut; Black, Andrew; Carrara, Arnaud; Dore, Sabina; Gianelle, Damiano; Helfter, Carole; Hollinger, David; Kutsch, Werner L.; Lafleur, Peter M.; Nouvellon, Yann; Rebmann, Corinna; Da Rocha, Humberto R.; Rodeghiero, Mirco; Roupsard, Olivier; Sebastià, Ma. T.; Seufert, Guenther; Soussana, Jean- Françoise (Blackwell Publishing Ltd, 2011)
      In this study we examined ecosystem respiration (RECO) data from 104 sites belonging to FLUXNET, the global network of eddy covariance flux measurements. The goal was to identify the main factors involved in the variability ...
    • El Síndrome de Despoblamiento de las Colonias, las apimiasis y la teoría de las abejas poseídas 

      Tolsá Sanz, M.D.; Ballesta Remy, Astrid (Arquivos Entomolóxicos Galegos (AEGA), 2017)
      En este artículo se efectúa una revisión de las apimiasis y se analiza su posible relación con el Síndrome de Despoblamiento de las Colonias. En particular, se analiza la teoría que relaciona los cambios comportamentales ...
    • Soil carbon and plant diversity distribution at the farm level in the savannah region of Northern Togo (West Africa) 

      Sebastià, Ma. T.; Marks, E.; Poch, Rosa M. (European Geosciences Union, 2008)
      In western Africa, soil organic matter is a source of fertility for food provision and a tool for climate mitigation. In the Savannah region, strong soil degradation linked to an increase in population threatens organic ...
    • Soil organic carbon storage in mountain grasslands of the Pyrenees: effects of climate and topography 

      Garcia-Pausas, Jordi; Casals, Pere; Huguet, Carme; Sebastià, Ma. T.; Thompson, Roy; Romanyà i Socoró, Joan; Camarero, Lluís (Springer Verlag, 2007)
      The prediction of soil C stocks across the landscape has been increasingly studied in many areas of the world. Soil organic C storage in mountain areas is highly heterogeneous, mainly as a result of local-scale variability ...
    • Soil porosity changes in orchards with subsurface irrigation: quantification and interpretation 

      Poch, Rosa M.; Pascual Roca, Miquel; Villar Mir, Josep Ma.; Rufat i Lamarca, Josep (Sociedad Geológica Mexicana, 2019)
      In order to assess the irrigation efficiency under water-limiting conditions, four different treatments of subsurface irrigation of peach trees in a semi-arid Mediterranean climate near Lleida (NE Iberian Peninsula) were ...
    • Sowing date affects maize development and yield in irrigated Mediterranean environments 

      Maresma Galindo, Ángel; Ballesta Remy, Astrid; Santiveri Morata, Paquita; Lloveras Vilamanyà, Jaume (MDPI, 2019-03-26)
      Timely sowing is critical for maximizing yield for both grain and biomass in maize.The effects of early (mid-March), normal (mid-April), and late (mid-May) sowing date (SD) werestudied over a three-year period in irrigated ...
    • Spatial and temporal stability of weed patches in cereal fields under direct drilling and harrow tillage 

      Izquierdo i Figarola, Jordi; Milne, Alice; Recasens i Guinjuan, Jordi; Royo-Esnal, Artiz; Torra Farré, Joel; Webster, R. (Richard); Baraibar Padró, Bàrbara (MDPI, 2020-03-25)
      The adoption of conservation agriculture (CA) techniques by farmers is changing the dynamics of weed communities in cereal fields and so potentially their spatial distribution. These changes can challenge the use of ...
    • Spatio-temporal analysis of african swine fever in Sardinia (2012-2014): trends in domestic pigs and wild boar 

      Iglesias, I.; Rodríguez Hernández, Antonio; Feliziani, F.; Rolesu, S.; De la Torre, A. (Blackwell Verlag GmbH, 2015-09-22)
      African swine fever (ASF) is a notifiable viral disease affecting domestic pigs and wild boars that has been endemic in Sardinia since 1978. Several risk factors complicate the control of ASF in Sardinia: generally poor ...
    • Stakeholder perceptions of the impacts of rural funding scenarios on mountain landscapes across Europe 

      Bayfield, Neil; Barancok, Peter; Furger, Markus; Sebastià, Ma. T.; Domínguez, Gloria; Lapka, Miloslav; Cudlinova, Eva; Vescovo, Loris; Ganielle, Damiano; Cernusca, Alexander; Tappeiner, Ulrike; Drösler, Matthias (Springer Verlag, 2008)
      This article examines how alternative rural funding scenarios might influence the pattern of functional land types in mountain areas. The study aims were to explore the use of stakeholders to predict landscape change and ...
    • Strong shifts in plant diversity and vegetation composition in grassland shortly after climatic change 

      Sebastià, Ma. T.; Kirwan, Laura; Connolly, John (Wiley, 2008)
      Questions: Is plant diversity in mesic grassland ecosystems vulnerable in the short-term to extreme climate change events? How rapidly can responses in vegetation composition occur in perennial grasslands? Are the ...
    • Target site as the main mechanism of resistance to imazamox in a Euphorbia heterophylla biotype 

      Rojano-Delgado, Antonia M.; Portugal, João M.; Palma-Bautista, Candelario; Alcántara-de la Cruz, Ricardo; Torra Farré, Joel; Alcántara, Esteban; Prado, Rafael de (Springer Nature, 2019-10-28)
      Euphorbia heterophylla is a weed species that invades extensive crop areas in subtropical regions of Brazil. This species was previously controlled by imazamox, but the continuous use of this herbicide has selected for ...
    • Target-site and non-target-site resistance mechanisms to ALS inhibiting herbicides in Papaver rhoeas 

      Rey Caballero, Jordi; Menéndez, Julio; Osuna, Maria D.; Salas, Marisa; Torra Farré, Joel (Elsevier, 2017-03-02)
      Target-site and non-target-site resistance mechanisms to ALS inhibitors were investigated in multiple resistant (tribenuron-methyl and 2,4-D) and only 2,4-D resistant, Spanish corn poppy populations. Six amino-acid ...
    • Temperature and light requirements for germination and emergence of three arable Papaveraceae species 

      Torra Farré, Joel; Royo-Esnal, Aritz; Recasens i Guinjuan, Jordi (2016)
      This research investigated the temperature and light requirements for seed germination and emergence patterns of pinnate poppy, violet horned-poppy, and nodding hypecoum, three annual Papaveraceae species found in arable ...
    • Temperature and moisture controls of C fluxes in grazed Subalpine grasslands 

      Sjögersten, Sofie; Llurba, Rosa; Ribas Artola, Àngela; Yanez-Serrano, Ana; Sebastià, Ma. T. (Institute of Arctic and Alpine Research, 2012-05-01)
      The aim of this research was to determine how changes in soil moisture and temperature influence ecosystem C fluxes in the context of changing grazing regimes in subalpine grasslands in the Pyrenees. We (i) measured CO2 ...
    • Teucrium campanulatum L. (Lamiaceae), una nova espècie per a Catalunya 

      Pedrol Solanes, Joan; Conesa i Mor, Josep A. (Josep Antoni) (Universitat Autònoma de Barcelona. Departament de Biologia Animal, Biologia Vegetal i Ecologia, 2009)
      Es dóna a conèixer una nova localitat de Teucrium campanulatum al Segrià, que representa una novetat per a la flora de Catalunya. S’ha elaborat un mapa de la distribució de l’espècie, a partir de material d’herbari i ...
    • The Agrodiversity Experiment: three years of data from a multisite study in intensively managed grasslands 

      Kirwan, Laura; Connolly, John; Brophy, Caroline; Baadshaug, Ole H.; Belanger, Gilles; Black, Alistair; Carnus, Timothee; Collins, Rosemary P.; Čop, Jure; Delgado, Ignacio; De Vliegher, A.; Elgersma, Anjo; Frankow-Lindberg, Bodil E.; Golinski, Piotr; Grieu, Philippe; Gustavsson, Anne-Maj; Helgadóttir, Áslaug; Höglind, Mats; Huguenin-Elie, Olivier; Jørgensen, Marit; Kadziuliene, Zydre; Lunnan, Tor; Lüscher, Andreas; Kurki, Päivi; Porqueddu, Claudio; Sebastià, Ma. T.; Thumm, Ulrich; Walmsley, David; Finn, John A. (2014-06-11)
      Intensively managed grasslands are globally prominent ecosystems. Weinvestigated whether experimental increases in plant diversity in intensively managedgrassland communities can increase their resource use efficiency.This ...
    • The role of light in the emergence of weeds: using Camelina microcarpa as an example 

      Royo-Esnal, Aritz; Gesch, Russell W.; Forcella, Frank; Torra Farré, Joel; Recasens i Guinjuan, Jordi; Necajeva, Jevgenija (Public Library of Science, 2015)
      When modelling the emergence of weeds, two main factors are considered that condition this process: temperature and soil moisture. Optimum temperature is necessary for metabolic processes that generate energy for growth, ...
    • The stable isotope ecology of terrestrial plant succession 

      Resco de Dios, Víctor; Ferrio Díaz, Juan Pedro; Carreira, José A.; Calvo, Leonor; Casals, Pere; Ferrero-Serrano, Ángel; Marcos, Elena; Moreno, José M.; Ramírez, David A.; Sebastià, Ma. T.; Valladares, Fernando; Williams, D. G. (Taylor & Francis, 2011)
      We review the relevance and use of stable isotopes for the study of plant community succession. Stable isotope measurements provide information on the origin of resources acquired by plants, the processes governing resource ...
    • Transcriptional regulation of the rice arginine decarboxylase (Adc1) and S-adenosylmethionine decarboxylase (Samdc) genes by methyl jasmonate 

      Peremartí, Ariadna; Bassie Rene, Ludovic; Yuan, Dawei; Pelacho Aja, Ana Mª; Christou, Paul; Capell Capell, Teresa (Elsevier, 2010)
      We investigated the effect of methyl jasmonate (MeJa) treatment on the expression of two genes in the rice polyamine biosynthesis pathway and on the polyamine content in wild type plants and transgenic rice plants expressing ...
    • Transdisciplinary weed research: new leverage on challenging weed problems? 

      Jordan, N.; Shut, M.; Graham, S.; Barney, J. N.; Childs, D. Z.; Christensen, S; Cousens, R. D.; Davis, A. S.; Eizenberg, H.; Ervin, D. E.; Fernandez Quintanilla, C.; Harrison, L. J.; Harsch, M. A.; Haijting, S.; Liebman, M.; Loddo, D.; Mirsky, S. B.; Riemens, M.; Neve, P.; Peltzer, D. A.; Renton, M.; Williams, M.; Recasens i Guinjuan, Jordi; Sonderskov, M. (Wiley, 2016)
      Transdisciplinary weed research (TWR) is a promising path to more effective management of challenging weed problems. We define TWR as an integrated process of inquiry and action that addresses complex weed problems in the ...