Introducing the climate change effects on Mediterranean forest ecosystems: observation, experimentation, simulation and management. In: Knowledge-based management of Mediterranean forests under climate driven risks: the ways ahead. EFIMED Annual Scientif

Peñuelas J (2010) Introducing the climate change effects on Mediterranean forest ecosystems: observation, experimentation, simulation and management. In: Knowledge-based management of Mediterranean forests under climate driven risks: the ways ahead. EFIMED Annual Scientif ic Seminar. Antalya pp. 10-11 proceedings.

Intégration des effets du changement climatique sur les forêts méditerranéennes : observation, expérimentation, modélisation et gestion p. 351. Introducing the climate change effects on Mediterranean forest ecosystems: observation, experimentation, simul

Peñuelas J, Gracia C, Filella I, Jump A, Carnicer J, Coll M, Lloret F, Curiel J, Estiarte M, Rutishauser T, Ogaya R, LLusiá J, Sardans J (2010) Intégration des effets du changement climatique sur les forêts méditerranéennes : observation, expérimentation, modélisation et gestion p. 351. Introducing the climate change effects on Mediterranean forest ecosystems: observation, experimentation, simul ation and management . Forêt Méditerranéenne XXXI, nº 4 pp. 357. ISSN 0245-484X.

Photochemical Reflectance Index (PRI) can estimate seasonal variations of ecosystem gross radiation use efficiency for different forest types. 1st Symposium The Terrestrial biosphere in the Earth System.

Garbulsky M, Peñuelas J, Filella I (2010) Photochemical Reflectance Index (PRI) can estimate seasonal variations of ecosystem gross radiation use efficiency for different forest types. 1st Symposium The Terrestrial biosphere in the Earth System. Hamburg, February 9-11. pp. 37-38 proceedings.

An Overview of the DAURE Campaign: Aerosols Emissions and Evolution in the Western Mediterranean Basin.

Pandolfi M, Querol X, Alastuey X, Jimenez JL, Pey J, Cusack M, Reche C, Amato F, Artiñano B, Baldasano JM, Burkhart J, Hansel A, Jorba O, Lorente J, Mohr C, Moreno T, Nemitz E, Peñuelas J, Seco R, Filella I, Llusià J, Sicard M, Viana M (2010) An Overview of the DAURE Campaign: Aerosols Emissions and Evolution in the Western Mediterranean Basin. Geophysical Research Abstracts. Vol. 12, EGU2010-1202General Assembly proceedings.

Phenology in the local, regional and global ecology of climate change. Phenology 2010: Climate change impacts and adaptations.

Peñuelas J, Filella I, Estiarte M, Rutishuaser T, Garbulsky M (2010) Phenology in the local, regional and global ecology of climate change. Phenology 2010: Climate change impacts and adaptations. Trinity College Dublin. pp 1 proceedings.

Impactes, vulnerabilitat i retroalimentacions climàtiques als ecosistemes terrestres catalans. A: Llebot E. (ed). Segon informe sobre el canvi climàtic a Catalunya.

Peñuelas J, Filella I, Estiarte M, Ogaya R, Llusià J, Sardans J, Jump A, Curiel J, Carnicer J, Rutishauser T, Rico L, Keenan T, Garbulsky M, Coll M, Díaz de Quijano M, Seco R, Rivas-Ubach A, Silva J, Boada M, Stefanescu C, Lloret F, Terradas J (2010) Impactes, vulnerabilitat i retroalimentacions climàtiques als ecosistemes terrestres catalans. A: Llebot E. (ed). Segon informe sobre el canvi climàtic a Catalunya. Institut d'Estudis Catalans i Generalitat de Catalunya. pp. 373-407.

Metabolòmica: una nova eina per a l'ecologia.

Peñuelas J, Sardans J (2010) Metabolòmica: una nova eina per a l'ecologia. UAB Divulga 05/2010.

Projected Climate Change Impacts on Biodiversity in Mediterranean Ecosystems. In Atlas of Biodiversity Risk. Eds. Settele J, Penev L, Georgiev T, Grabaum R, Grobelnik V, Hammen V, Klotz S, Kühn I.

Peñuelas J, Estiarte M, Prieto P, Sardans J, Jump A Moreno JM, Torres I, Cespedes B, Pla E, Sabaté S, Gracia CA (2010) Projected Climate Change Impacts on Biodiversity in Mediterranean Ecosystems. In Atlas of Biodiversity Risk. Eds. Settele J, Penev L, Georgiev T, Grabaum R, Grobelnik V, Hammen V, Klotz S, Kühn I. Pensoft Publishers. Sofia-Moscow. ISBN 978-954-642-446-4 (print) and ISBN 978-954-642-447-1 (e-book).

Annual and seasonal changes in foliar terpene content and emission rates in cistus albidus L. submitted to soil drought in Prades Forest (Catalonia, NE Spain)

Llusià J., Peñuelas J., Ogaya R., Alessio G. (2010) Annual and seasonal changes in foliar terpene content and emission rates in cistus albidus L. submitted to soil drought in Prades Forest (Catalonia, NE Spain). Acta Physiologiae Plantarum. 32: 387-394.
Enllaç
Doi: 10.1007/s11738-009-0416-y

Resum:

We measured the gas exchange and foliar terpene concentrations and terpene emission rates of Cistus albidus throughout the seasons of two annual periods (2003 and 2005) of contrasting precipitations (900 vs. 500 mm) and in response to experimental drought in a Mediterranean forest of southern Catalonia. C. albidus showed a typical seasonal oscillation of photosynthetic rates and stomatal conductance. Maximum photosynthetic activity appeared in the spring of the first year of the study and minimum ones in both summers. Net photosynthetic rates and stomatal conductance tended to decrease with drought treatment. In the first year, Cistus albidus presented maximum values of stored terpenes in autumn and winter and minimum values in spring and summer. Average concentrations in the first year were 154 and 96 μg g-1 dry matter (d.m.) for control and drought, respectively. Average concentrations in the second year were higher, 339 and 263 μg g-1 (d.m.) for control and drought, respectively. The most abundant terpene was zingiberene, followed by aromadendrene, germacrene, (-)-α-cedrene, and sesquiphel-landrene. The drought treatment tended to decrease terpene content, but not significantly. Considering all the treatments together, total terpene emissions ranged between practically 0 (spring 2003) to 9 μg g-1 (d.m.) h-1 (winter 2003). In the second year, total terpene emission rates decreased 39% in control plants, and 29% in drought plants. Significant seasonal differences in emission rates were found. Total emission rates tended to be higher in the drought treatment, especially in spring and autumn. These results help for a better understanding of the behavior of plant volatiles in Mediterranean conditions interannualy and seasonally, an issue of great interest for forest flammability and atmospheric chemistry. © Franciszek Górski Institute of Plant Physiology.

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Measurement of volatile terpene emissions in 70 dominant vascular plant species in Hawaii: Aliens emit more than natives

Llusià J., Peñuelas J., Sardans J., Owen S.M., Niinemets Ü. (2010) Measurement of volatile terpene emissions in 70 dominant vascular plant species in Hawaii: Aliens emit more than natives. Global Ecology and Biogeography. 19: 863-874.
Enllaç
Doi: 10.1111/j.1466-8238.2010.00557.x

Resum:

Aim Alien plant invasion is prominent in the Hawaiian Islands. There are many factors involved in invader success. To date, there is a general lack of information about one of them, which we aim to study here: the terpene emission capacity of both Hawaiian native and alien plants.Location Oahu (Hawaii).Methods We screened 35 alien and 35 native dominant plant species on Oahu Island for monoterpene emissions. The emission rates were measured from field-grown plants under standardized conditions of temperature and quantum flux density in the laboratory.Results The emission rates of total terpenes ranged from 0 μg g-1 h-1 to 55 μg g-1 h-1, and altogether 15 different terpenes were emitted in detectable amounts by the overall set of species. A phylogenetic signal was observed for total terpene emissions. Total terpene emission rates were higher in aliens than in native species (12.8 ± 2.0 vs. 7.6 ± 1.9 μg g-1 h-1, respectively).Main conclusions The greater terpene emission capacity may confer protection against multiple stresses and may partly account for the success of the invasive species, and may make invasive species more competitive in response to new global change-driven combined stresses. These results are consistent with aliens coming from very diverse ecosystems with generally higher biotic and abiotic stress pressures, and having higher nutrient concentrations. On the contrary, these results are not consistent with the 'excess carbon' hypotheses. These results indicate changes in vegetation terpene emissions brought about by alien plant invasions. © 2010 Blackwell Publishing Ltd.

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