<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Coll, Lluís</style></author><author><style face="normal" font="default" size="100%">Camarero, Araid</style></author><author><style face="normal" font="default" size="100%">Aragón, Juan Martínez De</style></author><author><style face="normal" font="default" size="100%">Camarero, Jesús Julio</style></author><author><style face="normal" font="default" size="100%">Martínez de Aragón, Juan</style></author><author><style face="normal" font="default" size="100%">Camarero, Araid</style></author><author><style face="normal" font="default" size="100%">Aragón, Juan Martínez De</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Fine Root Seasonal Dynamics, Plasticity, and Mycorrhization in 2 Coexisting Mediterranean Oaks with Contrasting Aboveground Phenology</style></title><secondary-title><style face="normal" font="default" size="100%">Ecoscience</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">architecture et le statut</style></keyword><keyword><style  face="normal" font="default" size="100%">Chênes</style></keyword><keyword><style  face="normal" font="default" size="100%">coexistence d</style></keyword><keyword><style  face="normal" font="default" size="100%">des mécanismes supportant la</style></keyword><keyword><style  face="normal" font="default" size="100%">Ectomycorrhizae</style></keyword><keyword><style  face="normal" font="default" size="100%">espèces méditerranéennes de</style></keyword><keyword><style  face="normal" font="default" size="100%">et caduques</style></keyword><keyword><style  face="normal" font="default" size="100%">feuilles persistantes</style></keyword><keyword><style  face="normal" font="default" size="100%">fine roots</style></keyword><keyword><style  face="normal" font="default" size="100%">l</style></keyword><keyword><style  face="normal" font="default" size="100%">mixte de chênes à</style></keyword><keyword><style  face="normal" font="default" size="100%">mycorhizien des radicelles d</style></keyword><keyword><style  face="normal" font="default" size="100%">nous avons analysé sur</style></keyword><keyword><style  face="normal" font="default" size="100%">nous avons utilisé la</style></keyword><keyword><style  face="normal" font="default" size="100%">Phenology</style></keyword><keyword><style  face="normal" font="default" size="100%">pour accroître notre compréhension</style></keyword><keyword><style  face="normal" font="default" size="100%">Quercus faginea</style></keyword><keyword><style  face="normal" font="default" size="100%">Quercus ilex</style></keyword><keyword><style  face="normal" font="default" size="100%">résumé</style></keyword><keyword><style  face="normal" font="default" size="100%">root traits</style></keyword><keyword><style  face="normal" font="default" size="100%">technique du sac</style></keyword><keyword><style  face="normal" font="default" size="100%">un peuplement</style></keyword><keyword><style  face="normal" font="default" size="100%">une année la production</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2012</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2012///</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.bioone.org/doi/abs/10.2980/19-3-3488</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">19</style></volume><pages><style face="normal" font="default" size="100%">238 - 245</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">To advance understanding of the mechanisms underpinning the coexistence of Mediterranean oak species, we conducted a year-long analysis of the production, architecture, and mycorrhization status of the fine roots of a mixed evergreen (Quercus ilex) and winter deciduous (Quercus faginea) oak stand. We used the ingrowth bag technique to sample the fine roots produced by each species in spring, summer, and winter. For each season, root architecture traits (specific root length, root diameter, root tips) and variables associated to root ectomycorrhizal status were measured in the laboratory. Results showed a marked seasonality in the fine root architecture, including more fine root tips and longer roots per unit of weight formed in spring and summer, revealing a capacity in Mediterranean oak species to modify root architecture in spring and suggesting the possibility of increased resource capture in summer. Fine root ectomycorrhizal status was comparable between species and also showed marked seasonality: we found a high percentage of roots colonized by dead ectomycorrhizas in winter but low ectomycorrhizal colonization rates in summer. Quercus ilex produced greater amounts of fine roots than Q. faginea (particularly during spring), suggesting greater competitive ability in the former species for belowground resources.</style></abstract><issue><style face="normal" font="default" size="100%">3</style></issue></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Coll, Lluís</style></author><author><style face="normal" font="default" size="100%">González-Olabarria, José Ramón</style></author><author><style face="normal" font="default" size="100%">Mola-Yudego, Blas</style></author><author><style face="normal" font="default" size="100%">Pukkala, Timo</style></author><author><style face="normal" font="default" size="100%">Messier, Christian</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Predicting understory maximum shrubs cover using altitude and overstory basal area in different Mediterranean forests</style></title><secondary-title><style face="normal" font="default" size="100%">European Journal of Forest Research</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">á altitude á</style></keyword><keyword><style  face="normal" font="default" size="100%">á fagaceae</style></keyword><keyword><style  face="normal" font="default" size="100%">Altitude</style></keyword><keyword><style  face="normal" font="default" size="100%">Basal area</style></keyword><keyword><style  face="normal" font="default" size="100%">e47</style></keyword><keyword><style  face="normal" font="default" size="100%">european network for forest</style></keyword><keyword><style  face="normal" font="default" size="100%">Fagaceae</style></keyword><keyword><style  face="normal" font="default" size="100%">Overstory</style></keyword><keyword><style  face="normal" font="default" size="100%">overstory á basal area</style></keyword><keyword><style  face="normal" font="default" size="100%">Pinaceae</style></keyword><keyword><style  face="normal" font="default" size="100%">Shrub cover</style></keyword><keyword><style  face="normal" font="default" size="100%">shrub cover á pinaceae</style></keyword><keyword><style  face="normal" font="default" size="100%">the cost action</style></keyword><keyword><style  face="normal" font="default" size="100%">the final conference of</style></keyword><keyword><style  face="normal" font="default" size="100%">this article originates from</style></keyword><keyword><style  face="normal" font="default" size="100%">vegetation management</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2010</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2010///</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.springerlink.com/index/10.1007/s10342-010-0395-yhttp://link.springer.com/10.1007/s10342-010-0395-y</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">130</style></volume><pages><style face="normal" font="default" size="100%">55 - 65</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">In some areas of the Mediterranean basin where the understory stratum represents a critical ﬁre hazard, managing the canopy cover to control the understory shrubby vegetation is an ecological alternative to the current mechanical management techniques. In this study, we determine the relationship between the overstory basal area and the cover of the understory shrubby vegetation for different dominant canopy species (Pinaceae and Fagaceae species) along a wide altitudinal gradient in the province of Catalonia (Spain). Analyses were conducted using data from the Spanish National Forest Inventory. At the regional scale, when all stands are analysed together, a strong negative relationship between mean shrub cover and site elevation was found. Among the Pinaceae species, we found fairly good relationships between stand basal area and the maximum development of the shrub stratum for species located at intermediate elevations (Pinus nigra, Pinus sylvestris). However, at the extremes of the elevationclimatic gradient (Pinus halepensis and Pinus uncinata stands), stand basal area explained very little of the shrub cover variation probably because microsite and topographic factors override its effect. Among the Fagaceae species, a negative relationship between basal area and the maximum development of the shrub stratum was found in Quercus humilis and Fagus sylvatica dominated stands but not in Quercus ilex. This can be due to the particular canopy structure and management history of Q. ilex stands. In conclusion, our study revealed a marked effect of the tree layer composition and the environment on the relationship between the development of the understory and overstory tree structure. More ﬁne-grained studies are needed to provide forest managers with more detailed information about the relationship between these two forest strata.</style></abstract><issue><style face="normal" font="default" size="100%">1</style></issue></record></records></xml>