Artículo
Analysis and assembling of network structure in mutualistic systems
Medan, Diego
; Perazzo, Roberto Pedro José; Devoto, Mariano
; Burgos, Enrique Miguel
; Zimmermann, Martin Guillermo
; Ceva, Horacio; Delbue, Ana M.
Fecha de publicación:
07/06/2007
Editorial:
Academic Press Ltd - Elsevier Science Ltd
Revista:
Journal of Theoretical Biology
ISSN:
0022-5193
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
It has been observed that mutualistic bipartite networks have a nested structure of interactions. In addition, the degree distributions associated with the two guilds involved in such networks (e.g., plants and pollinators or plants and seed dispersers) approximately follow a truncated power law (TPL). We show that nestedness and TPL distributions are intimately linked, and that any biological reasons for such truncation are superimposed to finite size effects. We further explore the internal organization of bipartite networks by developing a self-organizing network model (SNM) that reproduces empirical observations of pollination systems of widely different sizes. Since the only inputs to the SNM are numbers of plant and animal species, and their interactions (i.e., no data on local abundance of the interacting species are needed), we suggest that the well-known association between species frequency of interaction and species degree is a consequence rather than a cause, of the observed network structure.
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Articulos(OCA PQUE. CENTENARIO)
Articulos de OFICINA DE COORDINACION ADMINISTRATIVA PQUE. CENTENARIO
Articulos de OFICINA DE COORDINACION ADMINISTRATIVA PQUE. CENTENARIO
Articulos(SEDE CENTRAL)
Articulos de SEDE CENTRAL
Articulos de SEDE CENTRAL
Citación
Medan, Diego; Perazzo, Roberto Pedro José; Devoto, Mariano; Burgos, Enrique Miguel; Zimmermann, Martin Guillermo; et al.; Analysis and assembling of network structure in mutualistic systems; Academic Press Ltd - Elsevier Science Ltd; Journal of Theoretical Biology; 246; 3; 7-6-2007; 510-521
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