<?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%">Giordani, Paolo</style></author><author><style face="normal" font="default" size="100%">Incerti, Guido</style></author><author><style face="normal" font="default" size="100%">Rizzi, Guido</style></author><author><style face="normal" font="default" size="100%">Rellini, Ivano</style></author><author><style face="normal" font="default" size="100%">Nimis, Pier Luigi</style></author><author><style face="normal" font="default" size="100%">Modenesi, Paolo</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Functional traits of cryptogams in Mediterranean ecosystems are driven by water, light and substrate interactions</style></title><secondary-title><style face="normal" font="default" size="100%">JOURNAL OF VEGETATION SCIENCE</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">bryophytes</style></keyword><keyword><style  face="normal" font="default" size="100%">functional traits</style></keyword><keyword><style  face="normal" font="default" size="100%">lichens</style></keyword><keyword><style  face="normal" font="default" size="100%">Photosynthetic strategy</style></keyword><keyword><style  face="normal" font="default" size="100%">Reproductive strategy</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2014</style></year></dates><publisher><style face="normal" font="default" size="100%">WILEY-BLACKWELL</style></publisher><pub-location><style face="normal" font="default" size="100%">111 RIVER ST, HOBOKEN 07030-5774, NJ USA</style></pub-location><volume><style face="normal" font="default" size="100%">25</style></volume><pages><style face="normal" font="default" size="100%">778-792</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Question Poikilohydric organisms can survive desiccation without damage and recover soon after re-wetting. In this work we explore the realized niches of epilithic, poikilohydric organisms, i.e. lichenized and lichenicolous fungi and bryophytes, grouped into 15 functional guilds based on growth form, reproductive strategy and photosynthetic traits. We hypothesize that in Mediterranean ecosystems, the distribution of these guilds is controlled by water availability and solar radiation, together with characteristics of the substrate. Location Western Sardinia (Italy). The area hosts Mediterranean Quercus ilex forests on basaltic substrata within an agroforestry landscape. Methods The presence or absence of species from each guild was recorded in 1025 small quadrats (10x10cm). Four environmental variables were measured: solar radiation, microtopography (potential water run-off), substrate roughness and number of cracks. The occurrence of each guild was related to environmental variables using non-parametric multiplicative regression, and ecological niches of the guilds were derived from those models. Results The occurrence of all functional guilds varied significantly according to the selected environmental variables. In most cases, solar radiation was the most important variable; TI was included first in the model of two sorediate guilds, whereas four sexually reproducing functional guilds had surface relief as first variable. The growth forms were separated along a gradient of increasing solar radiation, whereas water run-off and surface roughness mainly discriminated reproductive strategies and photobionts. Vegetatively reproducing guilds with other photobionts than Euphyta-like pigments were confined to the border of the ecological space, defined by gradients of environmental factors, which was largely occupied by more competitive, sexually reproducing organisms. Conclusions Functional traits of epilithic poikilohydric organisms were associated with ecological adaptations to the stressful environment of Mediterranean outcrops. We showed that their response in terms of probability of occurrence is coherent with quantitative gradients of solar radiation and water availability at the micro-scale.</style></abstract></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%">Pinho, P</style></author><author><style face="normal" font="default" size="100%">Llop, E</style></author><author><style face="normal" font="default" size="100%">Ribeiro, M C</style></author><author><style face="normal" font="default" size="100%">Cruz, C</style></author><author><style face="normal" font="default" size="100%">Soares, A</style></author><author><style face="normal" font="default" size="100%">Pereira, M J</style></author><author><style face="normal" font="default" size="100%">Branquinho, C</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Tools for determining critical levels of atmospheric ammonia under the influence of multiple disturbances</style></title><secondary-title><style face="normal" font="default" size="100%">Environmental Pollution</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Air Pollutants</style></keyword><keyword><style  face="normal" font="default" size="100%">Air Pollutants: analysis</style></keyword><keyword><style  face="normal" font="default" size="100%">ammonia</style></keyword><keyword><style  face="normal" font="default" size="100%">Ammonia: analysis</style></keyword><keyword><style  face="normal" font="default" size="100%">Atmosphere</style></keyword><keyword><style  face="normal" font="default" size="100%">Atmosphere: chemistry</style></keyword><keyword><style  face="normal" font="default" size="100%">Biodiversity</style></keyword><keyword><style  face="normal" font="default" size="100%">Critical thresholds</style></keyword><keyword><style  face="normal" font="default" size="100%">Environmental Monitoring</style></keyword><keyword><style  face="normal" font="default" size="100%">Environmental Monitoring: methods</style></keyword><keyword><style  face="normal" font="default" size="100%">Eutrophication</style></keyword><keyword><style  face="normal" font="default" size="100%">Functional groups</style></keyword><keyword><style  face="normal" font="default" size="100%">Global change</style></keyword><keyword><style  face="normal" font="default" size="100%">lichens</style></keyword><keyword><style  face="normal" font="default" size="100%">Lichens: chemistry</style></keyword><keyword><style  face="normal" font="default" size="100%">Lichens: classification</style></keyword><keyword><style  face="normal" font="default" size="100%">nitrogen</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2014</style></year></dates><publisher><style face="normal" font="default" size="100%">Elsevier Ltd</style></publisher><volume><style face="normal" font="default" size="100%">188</style></volume><pages><style face="normal" font="default" size="100%">88-93</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Critical levels (CLEs) of atmospheric ammonia based on biodiversity changes have been mostly calculated using small-scale single-source approaches, to avoid interference by other factors, which also influence biodiversity. Thus, it is questionable whether these CLEs are valid at larger spatial scales, in a multi- disturbances context. To test so, we sampled lichen diversity and ammonia at 80 sites across a region with a complex land-cover including industrial and urban areas. At a regional scale, confounding factors such as industrial pollutants prevailed, masking the CLEs. We propose and use a new tool to calculate CLEs by stratifying ammonia concentrations into classes, and focusing on the highest diversity values. Based on the significant correlations between ammonia and biodiversity, we found the CLE of ammonia for Mediterranean evergreen woodlands to be 0.69 mgm?3, below the previously accepted value of 1.9 mgm?3, and below the currently accepted pan-European CLE of 1.0 mgm?3</style></abstract><accession-num><style face="normal" font="default" size="100%">24568792</style></accession-num></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%">Fos, Simón</style></author><author><style face="normal" font="default" size="100%">Giralt, Mireia</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Rinodina evae (Physciaceae, Ascomycota), a new corticolous blastidiate species from Eastern Spain</style></title><secondary-title><style face="normal" font="default" size="100%">Nova Hedwigia</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Biodiversity</style></keyword><keyword><style  face="normal" font="default" size="100%">cork-oak forests</style></keyword><keyword><style  face="normal" font="default" size="100%">iberian peninsula</style></keyword><keyword><style  face="normal" font="default" size="100%">lichens</style></keyword><keyword><style  face="normal" font="default" size="100%">Rinodina</style></keyword><keyword><style  face="normal" font="default" size="100%">taxonomy</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2009</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2009///</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://openurl.ingenta.com/content/xref?genre=article&amp;issn=0029-5035&amp;volume=88&amp;issue=1&amp;spage=33</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">88</style></volume><pages><style face="normal" font="default" size="100%">33 - 40</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Rinodina evae, a new corticolous species, is described from Eastern Spain. It is mainly characterized by a blastidiate, hairy thallus, Pachysporaria-type ascospores and the lack of secondary lichen substances. Hitherto, it is only known from several cork-oak forests of Catalonia and the Valencian Community, where it always grows on virgin bark of Quercus suber. The new species is compared with Rinodina poeltiana, somewhat similar in habit, as well as with other corticolous blastidiate Rinodina species.</style></abstract><issue><style face="normal" font="default" size="100%">1</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%">Fos, Simón</style></author><author><style face="normal" font="default" size="100%">Giralt, Mireia</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Rinodina evae (Physciaceae, Ascomycota), a new corticolous blastidiate species from Eastern Spain</style></title><secondary-title><style face="normal" font="default" size="100%">Nova Hedwigia</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Biodiversity</style></keyword><keyword><style  face="normal" font="default" size="100%">cork-oak forests</style></keyword><keyword><style  face="normal" font="default" size="100%">iberian peninsula</style></keyword><keyword><style  face="normal" font="default" size="100%">lichens</style></keyword><keyword><style  face="normal" font="default" size="100%">Rinodina</style></keyword><keyword><style  face="normal" font="default" size="100%">taxonomy</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2009</style></year></dates><volume><style face="normal" font="default" size="100%">88</style></volume><pages><style face="normal" font="default" size="100%">33-40</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Rinodina evae, a new corticolous species, is described from Eastern Spain. It is mainly characterized by a blastidiate, hairy thallus, Pachysporaria-type ascospores and the lack of secondary lichen substances. Hitherto, it is only known from several cork-oak forests of Catalonia and the Valencian Community, where it always grows on virgin bark of Quercus suber. The new species is compared with Rinodina poeltiana, somewhat similar in habit, as well as with other corticolous blastidiate Rinodina species.</style></abstract></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>3</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">García, C</style></author><author><style face="normal" font="default" size="100%">Carvalho, P</style></author><author><style face="normal" font="default" size="100%">Sergio, C</style></author><author><style face="normal" font="default" size="100%">Sim-Sim, M</style></author><author><style face="normal" font="default" size="100%">Diogo, A</style></author></authors><secondary-authors><author><style face="normal" font="default" size="100%">Marchetti, M</style></author></secondary-authors></contributors><titles><title><style face="normal" font="default" size="100%">Epiphytic bryophytes and lichens in Quercus rotundifolia Lam. woodlands of Portugal and their value as ecological indicators</style></title><secondary-title><style face="normal" font="default" size="100%">Monitoring and Indicators of Forest Biodiversity in Europe - From Ideas to Operationality</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">bryophytes</style></keyword><keyword><style  face="normal" font="default" size="100%">Ecological indicators</style></keyword><keyword><style  face="normal" font="default" size="100%">lichens</style></keyword><keyword><style  face="normal" font="default" size="100%">Portugal</style></keyword><keyword><style  face="normal" font="default" size="100%">TWINSPAN</style></keyword><keyword><style  face="normal" font="default" size="100%">woodlands</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2005</style></year></dates><publisher><style face="normal" font="default" size="100%">EUROPEAN FOREST INSTITUTE</style></publisher><pub-location><style face="normal" font="default" size="100%">TORIKATU 34, FIN-80100 JOENSUU, FINLAND</style></pub-location><pages><style face="normal" font="default" size="100%">271-283</style></pages><isbn><style face="normal" font="default" size="100%">952-5453-04-9</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">The epiphytic bryophyte and lichen vegetation in Quercus rotundifolia woodlands in Portugal and its dependence on a number of environmental variables were investigated in six sites of Portugal. 36 bryophyte (32 mosses, 4 liverworts) and 105 lichens were found. Multivariate analysis was used to examine the epiphytic bryophyte and lichen composition of these woodlands. TWINSPAN and Canonical Correspondence Analysis (CCA) recognized four major groups of bryophytes and lichens species, one related to pastoral woodlands, another to altitudinal woodlands, a third one to the woodlands under Atlantic influence and a fourth with generalist species. Differences in bryophyte and lichen species composition and cover in the studied areas were attributed mainly to distinct humidity, precipitation, evapotranspiration and insolation levels. The bryophytes Leucodon sciuroides, Frullania dilatata, and the lichen Evernia prunastri presented the highest cover values. A very rare bryophyte species Zygodon forsteri, included in the European Red Data Book, was found. Obtained results are a good basis to improve methods based on bryophytes and lichens as bio-indicators of forest biodiversity.</style></abstract></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>47</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Garcia, C.</style></author><author><style face="normal" font="default" size="100%">Carvalho, P.</style></author><author><style face="normal" font="default" size="100%">Sergio, C.</style></author><author><style face="normal" font="default" size="100%">Sim-Sim, M.</style></author><author><style face="normal" font="default" size="100%">Diogo, A.</style></author></authors><secondary-authors><author><style face="normal" font="default" size="100%">Marchetti, M.</style></author></secondary-authors></contributors><titles><title><style face="normal" font="default" size="100%">Epiphytic bryophytes and lichens in Quercus rotundifolia Lam. woodlands of Portugal and their value as ecological indicators</style></title><secondary-title><style face="normal" font="default" size="100%">Monitoring and Indicators of Forest Biodiversity in Europe - From Ideas to Operationality</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">bryophytes</style></keyword><keyword><style  face="normal" font="default" size="100%">Ecological indicators</style></keyword><keyword><style  face="normal" font="default" size="100%">lichens</style></keyword><keyword><style  face="normal" font="default" size="100%">Portugal</style></keyword><keyword><style  face="normal" font="default" size="100%">TWINSPAN</style></keyword><keyword><style  face="normal" font="default" size="100%">woodlands</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2005</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2005///</style></date></pub-dates></dates><publisher><style face="normal" font="default" size="100%">EUROPEAN FOREST INSTITUTE</style></publisher><pages><style face="normal" font="default" size="100%">271 - 283</style></pages><isbn><style face="normal" font="default" size="100%">952-5453-04-9</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">The epiphytic bryophyte and lichen vegetation in Quercus rotundifolia woodlands in Portugal and its dependence on a number of environmental variables were investigated in six sites of Portugal. 36 bryophyte (32 mosses, 4 liverworts) and 105 lichens were found. Multivariate analysis was used to examine the epiphytic bryophyte and lichen composition of these woodlands. TWINSPAN and Canonical Correspondence Analysis (CCA) recognized four major groups of bryophytes and lichens species, one related to pastoral woodlands, another to altitudinal woodlands, a third one to the woodlands under Atlantic influence and a fourth with generalist species. Differences in bryophyte and lichen species composition and cover in the studied areas were attributed mainly to distinct humidity, precipitation, evapotranspiration and insolation levels. The bryophytes Leucodon sciuroides, Frullania dilatata, and the lichen Evernia prunastri presented the highest cover values. A very rare bryophyte species Zygodon forsteri, included in the European Red Data Book, was found. Obtained results are a good basis to improve methods based on bryophytes and lichens as bio-indicators of forest biodiversity.</style></abstract><notes><style face="normal" font="default" size="100%">The following values have no corresponding Zotero field:&lt;br/&gt;periodical: Monitoring and Indicators of Forest Biodiversity in Europe - From Ideas to Operationality&lt;br/&gt;issue: 51&lt;br/&gt;pub-location: TORIKATU 34, FIN-80100 JOENSUU, FINLAND</style></notes></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%">Fos, Simón</style></author><author><style face="normal" font="default" size="100%">Clerc, Philippe</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">The Lichen Genus Usnea On Quercus Suber In Iberian Cork-Oak Forests</style></title><secondary-title><style face="normal" font="default" size="100%">The Lichenologist</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">characterization</style></keyword><keyword><style  face="normal" font="default" size="100%">lichens</style></keyword><keyword><style  face="normal" font="default" size="100%">quercus suber (PG)</style></keyword><keyword><style  face="normal" font="default" size="100%">usnea</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2000</style></year></dates><volume><style face="normal" font="default" size="100%">32</style></volume><pages><style face="normal" font="default" size="100%">67-68</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Fifteen species of Usnea are recorded from Iberian cork-oak forests: U. ceratina, U. cornuta, U. dasaea, U. esperantiana, U. ﬂammea, U. fulvoreagens, U. glabrata, U. hirta, U. mutabilis, U. rubicunda, U. subcornuta, U. subﬂoridana, U. subscabrosa, U. substerilis and U. wasmuthii. A key for these species is provided. Details of morphology, chemistry, distribution, ecology and taxonomy are discussed. Usnea dasaea is reported as new to the Iberian Peninsula. New chemotypes of U. fulvoreagens (with squamatic acid) and U. wasmuthii (with psoromic acid) have been identiﬁed. Distribution maps of U. dasaea and U. subcornuta in Europe are presented. A new combination, Usnea subﬂoridana subsp. praetervisa (Asahina) P. Clerc, is proposed</style></abstract></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%">Branquinho, C.</style></author><author><style face="normal" font="default" size="100%">Catarino, F.</style></author><author><style face="normal" font="default" size="100%">Brown, D. H.</style></author><author><style face="normal" font="default" size="100%">Pereira, M. J.</style></author><author><style face="normal" font="default" size="100%">Soares, A.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Improving the use of lichens as biomonitors of atmospheric metal pollution.</style></title><secondary-title><style face="normal" font="default" size="100%">The Science of the total environment</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Atmospheric dust pollution</style></keyword><keyword><style  face="normal" font="default" size="100%">Cellular location of Cu</style></keyword><keyword><style  face="normal" font="default" size="100%">chlorophyll fluorescence</style></keyword><keyword><style  face="normal" font="default" size="100%">Cu-mine</style></keyword><keyword><style  face="normal" font="default" size="100%">Fv Fm</style></keyword><keyword><style  face="normal" font="default" size="100%">Intracellular Cu</style></keyword><keyword><style  face="normal" font="default" size="100%">K and Mg</style></keyword><keyword><style  face="normal" font="default" size="100%">Lichen biodiversity</style></keyword><keyword><style  face="normal" font="default" size="100%">lichens</style></keyword><keyword><style  face="normal" font="default" size="100%">Ramalina fastigiata</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1999</style></year><pub-dates><date><style  face="normal" font="default" size="100%">1999///</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.ncbi.nlm.nih.gov/pubmed/10474262</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">232</style></volume><pages><style face="normal" font="default" size="100%">67 - 77</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">The data reported on this study supported the hypothesis that the absence of the lichen Ramalina fastigiata near a copper mine site located on the south of Portugal was related to toxic levels of Cu-dust near the centre of the mine. Lichen biodiversity reflected the impact of the copper-mine dust emissions which were more widespread towards the east, correlated with wind direction and frequency. The chemical analysis of R. fastigiata collected at different distances and in different directions from the mine showed that Cu, K and Mg were derived from the centre of the mine site, confirming thus as the major source of atmospheric dust. Total inhibition of PSII photochemical reactions occurred in R. fastigiata both under field and controlled conditions, when intracellular Cu concentrations exceeded a threshold of approximately 2.0 mumol g-1. No samples of this species were found under field conditions beyond the Cu threshold. Thus, the fluorescence parameter Fv/Fm proved to be a good estimator of the survival capacity of R. fastigiata under field conditions and thus a useful parameter in determining the sensitivity of the lichens (photobiont) to Cu pollution. The intracellular location of Cu allowed an explanation of the physiological changes and the survival of the species in the surroundings of the copper-mine.</style></abstract><issue><style face="normal" font="default" size="100%">1-2</style></issue><notes><style face="normal" font="default" size="100%">The following values have no corresponding Zotero field:&lt;br/&gt;accession-num: 10474262</style></notes></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%">Branquinho, C</style></author><author><style face="normal" font="default" size="100%">Catarino, F</style></author><author><style face="normal" font="default" size="100%">Brown, D H</style></author><author><style face="normal" font="default" size="100%">Pereira, M J</style></author><author><style face="normal" font="default" size="100%">Soares, A</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Improving the use of lichens as biomonitors of atmospheric metal pollution.</style></title><secondary-title><style face="normal" font="default" size="100%">The Science of the total environment</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Atmospheric dust pollution</style></keyword><keyword><style  face="normal" font="default" size="100%">Cellular location of Cu</style></keyword><keyword><style  face="normal" font="default" size="100%">chlorophyll fluorescence</style></keyword><keyword><style  face="normal" font="default" size="100%">Cu-mine</style></keyword><keyword><style  face="normal" font="default" size="100%">Fv Fm</style></keyword><keyword><style  face="normal" font="default" size="100%">Intracellular Cu</style></keyword><keyword><style  face="normal" font="default" size="100%">K and Mg</style></keyword><keyword><style  face="normal" font="default" size="100%">Lichen biodiversity</style></keyword><keyword><style  face="normal" font="default" size="100%">lichens</style></keyword><keyword><style  face="normal" font="default" size="100%">Ramalina fastigiata</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1999</style></year></dates><volume><style face="normal" font="default" size="100%">232</style></volume><pages><style face="normal" font="default" size="100%">67-77</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">The data reported on this study supported the hypothesis that the absence of the lichen Ramalina fastigiata near a copper mine site located on the south of Portugal was related to toxic levels of Cu-dust near the centre of the mine. Lichen biodiversity reflected the impact of the copper-mine dust emissions which were more widespread towards the east, correlated with wind direction and frequency. The chemical analysis of R. fastigiata collected at different distances and in different directions from the mine showed that Cu, K and Mg were derived from the centre of the mine site, confirming thus as the major source of atmospheric dust. Total inhibition of PSII photochemical reactions occurred in R. fastigiata both under field and controlled conditions, when intracellular Cu concentrations exceeded a threshold of approximately 2.0 mumol g-1. No samples of this species were found under field conditions beyond the Cu threshold. Thus, the fluorescence parameter Fv/Fm proved to be a good estimator of the survival capacity of R. fastigiata under field conditions and thus a useful parameter in determining the sensitivity of the lichens (photobiont) to Cu pollution. The intracellular location of Cu allowed an explanation of the physiological changes and the survival of the species in the surroundings of the copper-mine.</style></abstract><accession-num><style face="normal" font="default" size="100%">10474262</style></accession-num></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%">Longán, Angels</style></author><author><style face="normal" font="default" size="100%">Gómez-Bolea, Antonio</style></author><author><style face="normal" font="default" size="100%">Biologia, Dep</style></author><author><style face="normal" font="default" size="100%">Unitat, Vegetal</style></author><author><style face="normal" font="default" size="100%">Biologia, Fac</style></author><author><style face="normal" font="default" size="100%">Barcelona, Unív</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Líquenes y hongos liquenícolas epífitos de Quercus ilex L., poco conocidos en encinares de Cataluña (España)</style></title><secondary-title><style face="normal" font="default" size="100%">Cryptogamie Mycologie</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Catalonia</style></keyword><keyword><style  face="normal" font="default" size="100%">epiphytes</style></keyword><keyword><style  face="normal" font="default" size="100%">lichens</style></keyword><keyword><style  face="normal" font="default" size="100%">Quercus ilex</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1999</style></year></dates><volume><style face="normal" font="default" size="100%">20</style></volume><pages><style face="normal" font="default" size="100%">49-55</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">We present here 13 species of lichens and 3 of lichenicolous fungi found on Quercus ilex L. in evergreen oak forests of Catalonia. Leptogium coralloideum (Meyen &amp;amp; Flotow) Vainio, Scoliciosporum gallurae Vězda &amp;amp; Poelt, Abrothallus microspermus Tul. are new reports for Spain, and nine more species are new for the flora of Catalonia. For each one of them, a brief morphological characterisation, its distribution in Europe and in the Iberian Peninsula, and its autoecology are given.</style></abstract></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%">Longán, Angels</style></author><author><style face="normal" font="default" size="100%">Gómez-Bolea, Antonio</style></author><author><style face="normal" font="default" size="100%">Biologia, Dep</style></author><author><style face="normal" font="default" size="100%">Unitat, Vegetal</style></author><author><style face="normal" font="default" size="100%">Biologia, Fac</style></author><author><style face="normal" font="default" size="100%">Barcelona, Unív</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Líquenes y hongos liquenícolas epífitos de Quercus ilex L., poco conocidos en encinares de Cataluña (España)</style></title><secondary-title><style face="normal" font="default" size="100%">Cryptogamie Mycologie</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Catalonia</style></keyword><keyword><style  face="normal" font="default" size="100%">epiphytes</style></keyword><keyword><style  face="normal" font="default" size="100%">lichens</style></keyword><keyword><style  face="normal" font="default" size="100%">Quercus ilex</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1999</style></year><pub-dates><date><style  face="normal" font="default" size="100%">1999///</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.sciencedirect.com/science/article/pii/S0181158499800086</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">20</style></volume><pages><style face="normal" font="default" size="100%">49 - 55</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">We present here 13 species of lichens and 3 of lichenicolous fungi found on Quercus ilex L. in evergreen oak forests of Catalonia. Leptogium coralloideum (Meyen &amp;amp; Flotow) Vainio, Scoliciosporum gallurae Vězda &amp;amp; Poelt, Abrothallus microspermus Tul. are new reports for Spain, and nine more species are new for the flora of Catalonia. For each one of them, a brief morphological characterisation, its distribution in Europe and in the Iberian Peninsula, and its autoecology are given.</style></abstract><issue><style face="normal" font="default" size="100%">1</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%">ASCASO, C</style></author><author><style face="normal" font="default" size="100%">RAPSCH, S</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Ultrastructural Changes in Chloroplasts of Quercus rotundifolia Lam. in Response to Evernic Acid</style></title><secondary-title><style face="normal" font="default" size="100%">Annals of Botany</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">chloroplasts</style></keyword><keyword><style  face="normal" font="default" size="100%">evernic acid</style></keyword><keyword><style  face="normal" font="default" size="100%">lichens</style></keyword><keyword><style  face="normal" font="default" size="100%">Quercus rotundifolia Lam.</style></keyword><keyword><style  face="normal" font="default" size="100%">ultrastructure</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1986</style></year></dates><volume><style face="normal" font="default" size="100%">57</style></volume><pages><style face="normal" font="default" size="100%">407-413</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">The amount of total chlorophyll, chlorophylls a and b as well as the ratio of a to b decreased in chloroplasts isolated from Quercus rotundifolia leaves, kept for 17 d in a solution of 35.5 μM evernic acid in 1 mM Na HCO3, when compared with the chloroplasts of control leaves (kept in NaHCO3). The chloroplasts in the spongy parenchyma were smaller and the amount of starch and plastoglobuli lower. The number of grana per chloroplast section, the number of thylakoids per grana and the height of grana stacks were also less in the chloroplasts of leaves treated with evernic acid. Quantitative ultrastructural differences were determined by means of electron microscopy and image analysis techniques.</style></abstract></record></records></xml>