<?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%">Villanueva, Florentina</style></author><author><style face="normal" font="default" size="100%">Tapia, Araceli</style></author><author><style face="normal" font="default" size="100%">Notario, Alberto</style></author><author><style face="normal" font="default" size="100%">Albaladejo, José</style></author><author><style face="normal" font="default" size="100%">Martínez, Ernesto</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Ambient levels and temporal trends of VOCs, including carbonyl compounds, and ozone at Cabañeros National Park border, Spain</style></title><secondary-title><style face="normal" font="default" size="100%">Atmospheric Environment</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">air quality</style></keyword><keyword><style  face="normal" font="default" size="100%">aldehydes</style></keyword><keyword><style  face="normal" font="default" size="100%">Cabañeros National Park</style></keyword><keyword><style  face="normal" font="default" size="100%">Ozone</style></keyword><keyword><style  face="normal" font="default" size="100%">passive samplers</style></keyword><keyword><style  face="normal" font="default" size="100%">VOCs</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2014</style></year></dates><volume><style face="normal" font="default" size="100%">85</style></volume><pages><style face="normal" font="default" size="100%">256-265</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Concentration levels of 15 carbonyls, 17 VOCs and ozone were studied at Cabañeros National Park border, Spain, in an area mainly constituted by holm oaks (Quercus ilex) and cork oaks (Quercus suber), along with scrubland formations such as rock-rose and heather. The compounds were collected by means of diffusive samplers from August–November 2010 and February–August 2011. Carbonyl compounds, VOCs and O3 were analysed by HPLC with diode array UV–Vis detector, GC–FID and by UV–visible spectrophotometry, respectively. The most abundant carbonyls were hexanal, acetone–acrolein, formaldehyde and acetaldehyde. Seasonal variation was apparent with maximum values observed in summer months. Total carbonyl concentrations ranged from 2.8 to 19.7 μg m−3. Most VOCs studied (using chemically desorbable cartridges) were either not detected or were below their detection limits, however, a parallel sampling using thermally desorbable cartridges, from May 22 to June 19, revealed the presence of much more VOCs, identified using GC–MS. O3 concentration ranged from 27.2 to 90.5 μg m−3, reaching the maximum monthly mean concentration in March (84.4 μg m−3). The analysis of back trajectories indicates the transport of polluted air masses from remote areas, mainly from the Mediterranean basin that should contribute to the high levels of ozone observed.</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%">NUMA, CATHERINE</style></author><author><style face="normal" font="default" size="100%">LOBO, Jorge M.</style></author><author><style face="normal" font="default" size="100%">VERDÚ, JOSÉ R.</style></author><author><style face="normal" font="default" size="100%">Uma, Catherine N.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Scaling local abundance determinants in mediterranean dung beetles</style></title><secondary-title><style face="normal" font="default" size="100%">Insect Conservation and Diversity</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Abundance models</style></keyword><keyword><style  face="normal" font="default" size="100%">Cabañeros National Park</style></keyword><keyword><style  face="normal" font="default" size="100%">landscape connectivity</style></keyword><keyword><style  face="normal" font="default" size="100%">landscape scale</style></keyword><keyword><style  face="normal" font="default" size="100%">Scarabaeoidea</style></keyword><keyword><style  face="normal" font="default" size="100%">species traits</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://dx.doi.org/10.1111/j.1752-4598.2011.00137.x</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">5</style></volume><pages><style face="normal" font="default" size="100%">106 - 117</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Abstract. 1. We study the factors that contribute to the variation in the local abundance of dung beetle species inhabiting Cabañeros National Park, a Mediterranean reserve in Central Spain. The relative roles of five different groups of explanatory variables (climatic, local-scale vegetation, landscape-scale vegetation, landscape connectivity and trophic resources) were assessed for 27 sampling sites established by a nested hierarchical sampling design that considered three regional landscapes (woodland, scrubland, grassland) and three local habitat types (forest, scrub, pasture) within each landscape. 2. Connectivity variables related to the spatial configuration of closed vegetation and distance to patches of open or closed vegetation were the best predictors of the species abundance. Precipitation was the most important climatic variable, whereas grassland area at the local- or landscape-scale and woodland area at the landscape-scale were the most important vegetation variables. Dung resources variables had the lowest explanatory ability. 3. More than 60% of the models explained more than 70% of the total variability. Observed and predicted abundance were highly and positively correlated and the mean percentage of absolute predictive errors was approximately 50%. Low-abundance observations had higher predictive errors and model accuracies seemed to be lower for species with narrow distributional ranges and presence in a high number of sampling localities. 4. Mediterranean ecosystems contain a diverse assemblage of dung beetle species whose composition and abundance are influenced by a variety of factors operating across different spatial scales. The most important variables are the spatial configuration and the habitat connectivity around each locality.</style></abstract><issue><style face="normal" font="default" size="100%">2</style></issue><notes><style face="normal" font="default" size="100%">The following values have no corresponding Zotero field:&lt;br/&gt;publisher: Blackwell Publishing Ltd</style></notes></record></records></xml>