Phenotypic plasticity facilitates resistance to climate change in a highly variable environment

Calderon Guerrero, Carlos; Richter, Sarah; Kipfer, Tabea; Wohlgemuth, Thomas; Ghazoul, Jaboury y Moser, Barbara (2012). Phenotypic plasticity facilitates resistance to climate change in a highly variable environment. "Oecologia", v. 169 ; pp. 269-279. ISSN 0029-8549. https://doi.org/10.1007/S00442-011-2191-X.

Descripción

Título: Phenotypic plasticity facilitates resistance to climate change in a highly variable environment
Autor/es:
  • Calderon Guerrero, Carlos
  • Richter, Sarah
  • Kipfer, Tabea
  • Wohlgemuth, Thomas
  • Ghazoul, Jaboury
  • Moser, Barbara
Tipo de Documento: Artículo
Título de Revista/Publicación: Oecologia
Fecha: 2012
Volumen: 169
Materias:
Escuela: E.T.S.I. Montes (UPM) [antigua denominación]
Departamento: Proyectos y Planificación Rural [hasta 2014]
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

Increased summer drought will exacerbate the regeneration of many tree species at their lower latitudinal and altitudinal distribution limits. In vulnerable habitats, introduction of more drought-tolerant provenances or species is currently considered to accelerate tree species migration and facilitate forest persistence. Trade-offs between drought adaptation and growth plasticity might, however, limit the effectiveness of assisted migration, especially if introductions focus on provenances or species from different climatic regions. We tested in a common garden experiment the performance of Pinus sylvestris seedlings from the continental Central Alps under increased temperatures and extended spring and/or summer drought, and compared seedling emergence, survival and biomass allocation to that of P. sylvestris and closely related Pinus nigra from a Mediterranean seed source. Soil heating had only minor effects on seedling performance but high spring precipitation doubled the number of continental P. sylvestris seedlings present after the summer drought. At the same time, twice as many seedlings of the Mediterranean than the continental P. sylvestris provenance were present, which was due to both higher emergence and lower mortality under dry conditions. Both P. sylvestris provenances allocated similar amounts of biomass to roots when grown under low summer precipitation. Mediterranean seedlings, however, revealed lower phenotypic plasticity than continental seedlings under high precipitation, which might limit their competitive ability in continental Alpine forests in non-drought years. By contrast, high variability in the response of individual seedlings to summer drought indicates the potential of continental P. sylvestris provenances to adapt to changing environmental conditions.

Más información

ID de Registro: 32178
Identificador DC: http://oa.upm.es/32178/
Identificador OAI: oai:oa.upm.es:32178
Identificador DOI: 10.1007/S00442-011-2191-X
Depositado por: Memoria Investigacion
Depositado el: 07 Oct 2014 11:22
Ultima Modificación: 07 Oct 2014 11:22
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