Local variability of serotinous cones in a Canary Island pine (Pinus canariensis) stand

López de Heredia Larrea, Unai; Lopez Rodriguez, Rosana; Guzmán Delgado, Paula; Nanos, Nikolaos; García del Rey, Eduardo; Gil, Pascual y Gil Sanchez, Luis (2011). Local variability of serotinous cones in a Canary Island pine (Pinus canariensis) stand. En: "4th International Conference of Mediterranean Pines", 06/06/2011 - 10/06/2011, Aviñón, Francia.

Descripción

Título: Local variability of serotinous cones in a Canary Island pine (Pinus canariensis) stand
Autor/es:
  • López de Heredia Larrea, Unai
  • Lopez Rodriguez, Rosana
  • Guzmán Delgado, Paula
  • Nanos, Nikolaos
  • García del Rey, Eduardo
  • Gil, Pascual
  • Gil Sanchez, Luis
Tipo de Documento: Ponencia en Congreso o Jornada (Póster)
Título del Evento: 4th International Conference of Mediterranean Pines
Fechas del Evento: 06/06/2011 - 10/06/2011
Lugar del Evento: Aviñón, Francia
Título del Libro: Proceedings of 4th International Conference of Mediterranean Pines
Fecha: 2011
Materias:
Escuela: E.T.S.I. Montes (UPM) [antigua denominación]
Departamento: Silvopascicultura [hasta 2014]
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

The endemic Canary Island pine (Pinus canariensis) has an effective strategy to counteract fire disturbance in the short term. It has a mixed strategy that combines the presence of serotinous cones and thick barks with the ability to re-sprout from the trunk after a fire, a rare trait in pine species. High frequency of fires in the Canary Islands is related to human action, as natural fires by lightning or vulcan activity have very low frequency; hence, the how and whys of the presence of serotinous cones in the species is still a topic of debate. Previous studies showed that the frequency of serotinous cones varies from stand to stand. Here, we analyzed the presence of serotinous cones at a local scale. We selected a Canary Island pine stand in the transition zone between dry and humid forests in the south of Tenerife. Branches were pruned from 20 trees in order to evaluate the presence of serotinous vs. non-serotinous cones by direct verticile counting on the branches. The opening temperature of serotinous cones was assessed in the laboratory. Percentages of serotinous vs. non-serotinous cones varied from 0 to 93 %, showing high variability between trees. Opening temperatures were very high (above 65 ºC) as compared to other Mediterranean pine species with serotinous cones

Más información

ID de Registro: 12571
Identificador DC: http://oa.upm.es/12571/
Identificador OAI: oai:oa.upm.es:12571
Depositado por: Memoria Investigacion
Depositado el: 04 Sep 2012 07:50
Ultima Modificación: 21 Abr 2016 11:50
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