Observatorio de I+D+i UPM

Memorias de investigación
Artículos en revistas:
Why and where do adult trees die in a young secondary temperate forest? The role of neighbourhood
Año:2009
Áreas de investigación
  • Botánica,
  • Ecología
Datos
Descripción
The density and identity of tree neighbourhood is a key factor to explain tree mortality in forests, especially during the stem exclusion phase. To understand this process, we built a logistic model for mortality in a spatially explicit context, including tree and neighbourhood predictors. Additionally, we used this model to build mortality risk frequency distributions. Finally, we tested this model against a random mortality model to predict the spatial pattern of the forest. Annual mortality rate was high for pedunculate oak (Quercus robur, 6.99%), moderate for birch (Betula celtiberica, 2.19%) and Pyrenean oak (Q. pyrenaica, 1.58%) and low for beech (Fagus sylvatica, 0.26%). Mortality risk models for pedunculate oak and birch included stem diameter, tree height, canopy position and neighbourhood. Mortality was affected by the specific nature of the neighbourhood showing a clear competitive hierarchy: beech > pedunculate oak > birch. Models based on random mortality and logistic regression model were able to predict the spatial pattern of survivors although logistic regression predictions were more accurate. Our study highlights how simple models such as the random mortality one may obscure much more complex spatial interactions
Internacional
Si
JCR del ISI
Si
Título de la revista
ANNALS OF FOREST SCIENCE
ISSN
1286-4560
Factor de impacto JCR
1,554
Información de impacto
Volumen
66
DOI
10.1051/forest:2008074
Número de revista
105
Desde la página
1
Hasta la página
8
Mes
ENERO
Ranking
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Participantes
  • Autor: ADRIÁN ESCUDERO
  • Autor: JOSÉ MIGUEL OLANO
  • Autor: Marcelino de la Cruz Rot (UPM)
  • Autor: NERE AMAIA LASKURAIN
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Biodiversidad y conservación de recursos fitogenéticos
  • Departamento: Biología Vegetal
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