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Memorias de investigación
Artículos en revistas:
Effect of canopy closure on pollen dispersal in a wind-pollinated species (Fagus sylvatica L.)
Año:2012
Áreas de investigación
  • Ciencias naturales y ciencias de la salud
Datos
Descripción
"The effect of non-reproductive trees and saplings as a physical barrier to pollen dispersal in wind-pollinated species? forests has not received enough attention in the literature so far. The neighborhood seedling model was used to fit pollen dispersal models for beech at different stages of gap recolonization and to elucidate the effect of saplings as a physical barrier on pollen dispersal at local scale. Phenological overlap of leaf emergence, and pollen release as well as wind directionality patterns were also examined. As a case study, we used a mixed beech-oak forest that was managed as open woodland until 1974. The ban on entry of cattle has led to the recolonization of empty spaces by seedlings and saplings of beech (Fagus sylvatica L.) and two oak species (Quercus petraea (Matts.) Liebl. and Q. pyrenaica Willd.) and, at last, to canopy closure. The average pollen dispersal distance for the first plants that regenerated in the gaps was almost twice those found for recently installed seedlings and seeds collected in traps, supporting the hypothesis that the understory may act as a physical barrier to pollen dispersal. Although a substantial part of effective pollination directionality is at random, horizontal winds and vertical anabatic winds may explain some of this directionality. At the time of beech pollen release, leaves of beech and sessile oak are fully developed, enhancing pollen interception by the saplings. Explicit models of pollen dispersal for wind-pollinated trees should incorporate the effect of canopy closure caused by growth of saplings and account for leaf phenology of co-occurring species in the forest."
Internacional
Si
JCR del ISI
Si
Título de la revista
Plant Ecology
ISSN
1385-0237
Factor de impacto JCR
1,83
Información de impacto
Volumen
213
DOI
DOI 10.1007/s11258-012-0125-2
Número de revista
11
Desde la página
1715
Hasta la página
1728
Mes
NOVIEMBRE
Ranking
8/59(Forestry)
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Matias Milleron . (UPM)
  • Autor: Unai Lopez de Heredia Larrea (UPM)
  • Autor: Zaida Lorenzo Rodríguez (UPM)
  • Autor: Ramón Perea (UPM)
  • Autor: Aikaterini Dounavi (Forest Research Institute of Baden-Württemberg. Friburgo. Alemania.)
  • Autor: Jesus de Alonso Nager (UPM)
  • Autor: Luis Alfonso Gil Sanchez (UPM)
  • Autor: Nikolaos Nanos (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Genética y Fisiología Forestal
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