Traces de metalls contaminants en biomasses, analitzades espectroscòpicament.

Sardans J, Peñuelas J, Montes F (2010) Traces de metalls contaminants en biomasses, analitzades espectroscòpicament. UAB Divulga 06/2010.

Menys aigua, menys nutrients: el canvi climàtic en els nostres ecosistemes mediterranis.

Sardans J, Peñuelas J, Estiarte M (2010) Menys aigua, menys nutrients: el canvi climàtic en els nostres ecosistemes mediterranis. UAB Divulga 10/2010.

Menos agua, menos nutrientes: el cambio climático en los ecosistemas mediterráneos.

Sardans J, Peñuelas J, Estiarte M (2010) Menos agua, menos nutrientes: el cambio climático en los ecosistemas mediterráneos. UAB Divulga 10/2010.

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

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.

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).

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.
Enlace
Doi: 10.1111/j.1466-8238.2010.00557.x

Resumen:

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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Genome size unaffected by moderate changes in climate and phosphorus availability in Mediterranean plants.

Pellicer J, Estiarte M, Garcia S, Garnatje T, Peñuelas J, Sardans J, Valles J (2010) Genome size unaffected by moderate changes in climate and phosphorus availability in Mediterranean plants. African Journal of Biotechnology 9: 6070-6077.

Faster returns on 'leaf economics' and different biogeochemical niche in invasive compared with native plant species

Penuelas J., Sardans J., Llusià J., Owen S.M., Carnicer J., Giambelluca T.W., Rezende E.L., Waite M., Niinemets Ü. (2010) Faster returns on 'leaf economics' and different biogeochemical niche in invasive compared with native plant species. Global Change Biology. 16: 2171-2185.
Enlace
Doi: 10.1111/j.1365-2486.2009.02054.x

Resumen:

Plant-invasive success is one of the most important current global changes in the biosphere. To understand which factors explain such success, we compared the foliar traits of 41 native and 47 alien-invasive plant species in Oahu Island (Hawaii), a location with a highly endemic flora that has evolved in isolation and is currently vulnerable to invasions by exotic plant species. Foliar traits, which in most cases presented significant phylogenetic signal, i.e. closely related species tended to resemble each other due to shared ancestry, separated invasive from native species. Invasive species had lower leaf mass per area and enhanced capacities in terms of productivity (photosynthetic capacity) and nutrient capture both of macro- (N, P, K) and microelements (Fe, Ni, Cu and Zn). All these differences remain highly significant after removing the effects of phylogenetic history. Alien-invasive species did not show higher efficiency at using limiting nutrient resources, but they got faster leaf economics returns and occupied a different biogeochemical niche, which helps to explain the success of invasive plants and suggests that potential increases in soil nutrient availability might favor further invasive plant success. © 2009 Blackwell Publishing Ltd.

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