A stochastic model for tree survival in stands affected by annosum root disease

Mortality of trees surrounding pine stumps colonized by Heterobasidion annosum for about 35 years was monitored over a period of 20 yr in 53 eastside pine stands in northern California. The data were used to develop a stochastic model that quantifies effects of tree characteristics and spatial proxi...

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Bibliographic Details
Published in:Forest science 1997-02, Vol.43 (1), p.78-86
Main Authors: Preisler, H.K, Slaughter, G.W
Format: Article
Language:English
Subjects:
Biological and medical sciences
CALIFORNIA
CALIFORNIE
DIMENSION
DIMENSIONS
DISTRIBUCION ESPACIAL
DISTRIBUTION SPATIALE
ESPECE
ESPECIES
Fundamental and applied biological sciences. Psychology
Fungal plant pathogens
HETEROBASIDION ANNOSUM
JUNIPERUS
MATHEMATICAL MODELS
MODELE MATHEMATIQUE
MODELOS MATEMATICOS
MORTALIDAD
MORTALITE
MORTALITY
Pathology, epidemiology, host-fungus relationships. Damages, economic importance
Phytopathology. Animal pests. Plant and forest protection
PINUS
RACINE
RAICES
ROOTS
SIZE
SOUCHE D'ARBRE
SPATIAL DISTRIBUTION
SPECIES
STUMPS
SUPERVIVENCIA
SURVIE
SURVIVAL
TOCON
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Summary:Mortality of trees surrounding pine stumps colonized by Heterobasidion annosum for about 35 years was monitored over a period of 20 yr in 53 eastside pine stands in northern California. The data were used to develop a stochastic model that quantifies effects of tree characteristics and spatial proximities on survival of trees within 12 m of a colonized stump. The model accommodates mortality data collected at irregular intervals. Variables with significant effects on tree survival included trees species, size, and distance of roots from the root of a previously dead tree. Results from stochastic models based on actual data are useful for detecting factors affecting tree survival and for evaluating assumptions of numerical (simulation) models, such as root disease computer models
ISSN:0015-749X
1938-3738
DOI:10.1093/forestscience/43.1.78