Floral BVOC emissions in relation to floral rewards and visits of pollinators in 5 plant species of a Mediterranean shrubland.

Farré G, Filella I, Llusià J, Peñuelas J (2012) Floral BVOC emissions in relation to floral rewards and visits of pollinators in 5 plant species of a Mediterranean shrubland. BVOCs Gordon Conference, Biogenic Hydrocarbons & the atmosphere. Reaching across scales: from molecule to the globe. Bates College, Maine. June 24-29.

Plants warn each other of imminent danger.

Seco R, Filella I, Llusià J, Peñuelas J (2012) Plants warn each other of imminent danger. UABdivulga 02/2012

Second report on climate change in Catalonia

Llebot JE, Carnicer J, Curiel J, Coll M, Díaz de Quijano M, Estiarte M, Filella I, Garbulsky M, Jump A, Llusià J, Ogaya R, Peñuelas J, Rico L, Rivas-Ubach A, Rutishauser T, Sardans J, Seco R, Silva J, Stefanescu C, Terradas J (2012) Second report on climate change in Catalonia. Executive summary. Institut d'Estudis Catalans. Generalitat de Catalunya. pp. 1-36. ISBN9788499650975.

Optical estimation of biophysical parameters: A short history and current challenges.

Peñuelas J, Filella I, Garbulsky M (2012) Optical estimation of biophysical parameters: A short history and current challenges. A science-industry interaction meeting on Spectral Sampling Tools for Vegetation Biophysical Parameters and Flux Measurements in Europe. Brussels. 9-10th May.

BVOCs in the plant-pollinator market and other applications of ecology to betytyerunderstand BVOC emissions in the environment.

Peñuelas J, Filella I, Farré G, Owen S, Primante C, Rodrigo A, Martín A, Bosch J, Seco R, Porcar A, Llusià J, Greenberg J, Harley P, Rapparini F, Estiarte M, Mejia-Chang M, Ogaya R, Ibañez J, Sardans J, Turnipseed A, Geron C, Duhl T, Facini O, Baraldi R, Rapparini F, Guenther A (2012) BVOCs in the plant-pollinator market and other applications of ecology to betytyerunderstand BVOC emissions in the environment. BVOCs Gordon Conference, Biogenic Hydrocarbons & the atmosphere. Reaching across scales: from molecule to the globe. Bates College, Maine. June 24-29. Key note invited speaker.

Volatile organic compounds in the Western Mediterranean Basin: urban and rural winter measurements during the DAURE campaign

Seco R, Peñuelas J, Filella I, Llusià J, Schallharts S, Metzger A, Müller M, Hansel A 2012 Volatile organic compounds in the Western Mediterranean Basin: urban and rural winter measurements during the DAURE campaign. Atmospheric and Physics Discussion 12: 30909-30950.

Contrasting winger and summer VOC mixing ratios at a Mediterranean forest site: the effect of local biogenic emissions.

Seco R, Penuelas J, Filella I, Llusia J, Ansel A (2012) Contrasting winger and summer VOC mixing ratios at a Mediterranean forest site: the effect of local biogenic emissions. BVOCs Gordon Conference, Biogenic Hydrocarbons & the atmosphere. Reaching across scales: from molecule to the globe. Bates College, Maine. June 24-29.

Els COVs al Montseny: entre l'smog urbà i la biogeneració.

Seco R, Peñuelas J, Filella I, Llusià J, Molowny-Horas R (2012). Els COVs al Montseny: entre l'smog urbà i la biogeneració. UABdivulga 03/2012.

Ecosystemic and biospheric interactions with carbon cycle

Peñuelas J, Filella I, Estiarte M, Ogaya R, Llusià J, Sardans J, Jump A, Carnicer J, Rico L, Garbulsky M, Coll M, Díaz de Quijano M, Seco R, Rivas-Ubach A, Kefauver S, Barbeta A, Achoategui A, Mejía-Chang M, Gallardo A, Farre G, Fernández M, Terradas J (2012) Ecosystemic and biospheric interactions with carbon cycle. In Carbon dioxide budget: processes and tendencies symposium. Universitat Politècnica de Catalunya, May 23-25.

Seasonal changes in the daily emission rates of terpenes by Quercus ilex and the atmospheric concentrations of terpenes in the natural park of Montseny, NE Spain

Llusia J., Peñuelas J., Seco R., Filella I. (2012) Seasonal changes in the daily emission rates of terpenes by Quercus ilex and the atmospheric concentrations of terpenes in the natural park of Montseny, NE Spain. Journal of Atmospheric Chemistry. 69: 215-230.
Enlace
Doi: 10.1007/s10874-012-9238-1

Resumen:

We studied the daily patterns in the rates of terpene emissions by the montane holm oak, Quercus ilex, in three typical days of winter and three typical days of summer in Montseny, a natural park near Barcelona, and related them to the air concentrations of terpenes, ozone and NO 2. Terpene emission rates were about 10 times higher in summer than in winter. Emissions virtually stopped in the dark. In both seasons, rates of terpene emissions were well correlated with light, air temperature and relative humidity. Rates of emissions were also correlated with stomatal conductance and the rates of transpiration and photosynthesis. Almost all the individual terpenes identified followed the same pattern as total terpenes. The most abundant terpene was α-pinene, followed by sabinene + β-pinene, limonene, myrcene, camphene and α-phellandrene. Atmospheric terpene concentrations were also about 10 times higher in summer than in winter. A significant diurnal pattern with maxima at midday was observed, especially in summer. The increase by one order of magnitude in the concentrations of these volatile isoprenoids highlights the importance of local biogenic summer emissions in these Mediterranean forested areas which also receive polluted air masses from nearby or distant anthropic sources. Atmospheric concentrations of O 3 and NO 2 were also significantly higher in summer and at midday hours. In both seasons, concentrations of O 3 were significantly correlated with concentrations of terpenes and NO 2 in the air and with rates of terpene emission. © Springer Science+Business Media B.V. 2012.

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