DSpace Repository

Extinction threshold for spatial forest dynamics with height structure

Extinction threshold for spatial forest dynamics with height structure
 
Garcia Domingo, Josep Lluís ; Saldaña, Joan
2011

Files in this item

Icon
Name: artconlli_a2011_garcia_domingo_extinction_threshold.pdf
Size: 1.100Mb
Format: PDF
Description: Només accés administradors
Enllaç permanent: http://hdl.handle.net/10854/2256
 
Versió de l'editor: https://doi.org/10.1016/j.jtbi.2011.02.003
 

Abstract

We present a pair-approximation model for spatial forest dynamics defined on a regular lattice. The model assumes three possible states for a lattice site: empty (gap site), occupied by an immature tree, and occupied by a mature tree, and considers three nonlinearities in the dynamics associated to the processes of light interference, ...»»»»
We present a pair-approximation model for spatial forest dynamics defined on a regular lattice. The model assumes three possible states for a lattice site: empty (gap site), occupied by an immature tree, and occupied by a mature tree, and considers three nonlinearities in the dynamics associated to the processes of light interference, gap expansion, and recruitment. We obtain an expression of the basic reproduction number R0 which, in contrast to the one obtained under the mean-field approach, uses information about the spatial arrangement of individuals close to extinction. Moreover, we analyze the corresponding survival–extinction transition of the forest and the spatial correlations among gaps, immature and mature trees close to this critical point. Predictions of the pair-approximation model are compared with those of a cellular automaton.^^^^

Type:

Article

xmlui.dri2xhtml.METS-1.0.item-indexacio:

 
Indexat a SCOPUS
 
Indexat a WOS/JCR
 

Rights:

(c) 2011 Elsevier. Published article is available at: http://dx.doi.org/10.1016/j.jtbi.2011.02.003

Citation:

Garcia Domingo, Josep Lluis, and Joan Saldana. "Extinction Threshold for Spatial Forest Dynamics with Height Structure." Journal of theoretical biology 276.1 (2011): 138-49.