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Memorias de investigación
Artículos en revistas:
Population differences in juvenile survival under increasing drought are mediated by seed size in cork oak (Quercus suber L.)
Año:2009
Áreas de investigación
  • Fisiología vegetal
Datos
Descripción
Many studies have focused on the physiological and morphological responses of Quercus suber to high temperatures and summer drought. Nevertheless, our understanding of the potential of this species to cope with climate change is incomplete. An increase in severity, length and frequency of summer droughts is expected in the Iberian Peninsula over the 21st century. We investigated the potential of cork oak to adapt to climate change in a 4-year study comparing seedling survival from thirteen Spanish populations in a common garden. Acorn size was evaluated as a possible adaptive trait enhancing stress resistance during establishment. Populations originating from sites with the driest summers exhibited the highest survival rates under dry conditions. These populations were characterized by bigger acorns, suggesting selection for this trait across sites experiencing drought. Our findings reveal that northern populations are not well adapted to cope with increasing drought but suggest that they might cope well with the moderate drought increase expected for these zones. However, continental populations are intermediately adapted to dry conditions, while drastic and fast increases in summer droughts are expected to occur in these regions. This extensive and quick change will provide scant chances to adapt making the populations of cork oak in these regions particularly vulnerable to the future climatic conditions.
Internacional
Si
JCR del ISI
Si
Título de la revista
FOREST ECOLOGY AND MANAGEMENT
ISSN
0378-1127
Factor de impacto JCR
2,11
Información de impacto
Volumen
257
DOI
Número de revista
8
Desde la página
1676
Hasta la página
1683
Mes
MARZO
Ranking
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Participantes
  • Participante: Jose Alberto Ramírez-Valiente (INIA)
  • Autor: Luis Alfonso Gil Sanchez (UPM)
  • Participante: Fernándo Valladares (CSIC)
  • Autor: Ismael Aranda García (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Genética y Fisiología Forestal
  • Departamento: Silvopascicultura
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