Abstract:
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. © 2007.
Registro:
Documento: |
Artículo
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Título: | Analysis and assembling of network structure in mutualistic systems |
Autor: | Medan, D.; Perazzo, R.P.J.; Devoto, M.; Burgos, E.; Zimmermann, M.G.; Ceva, H.; Delbue, A.M. |
Filiación: | Cátedra de Botánica, Facultad de Agronomía, la Universidad de Buenos Aires, Av. San Martín 4454, 1417DSE Buenos Aires, Argentina Departamento de Investigación y Desarrollo, Instituto Tecnológico de Buenos Aires, Av. E. Madero 399, 1106 Buenos Aires, Argentina Departamento de Física, Comisión Nacional de Energía Atómica, Av. del Libertador 8250, 1429 Buenos Aires, Argentina Departamento de Física, Facultad de Ciencias Exactas y Naturales, la Universidad de Buenos Aires, Ciudad Universitaria, 1428 Buenos Aires, Argentina Departamento de Economía, Facultad de Ciencias Sociales y Económicas, la Universidad Católica Argentina, Av. A. Moreau de Justo 1400, 1107 Buenos Aires, Argentina Consejo Nacional de Investigaciones Científicas y Técnicas, Av. Rivadavia 1917, C1033AAJ Buenos Aires, Argentina
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Palabras clave: | Mutualistic systems; Nestedness; Network; Plant-pollinator; Preferential attachment; modeling; mutualism; nestedness; network analysis; plant-herbivore interaction; plant-pollinator interaction; pollination; seed dispersal; article; evolutionary adaptation; mathematical model; nonhuman; plant animal interaction; pollination; pollinator; priority journal; species difference; symbiosis; Adaptation, Physiological; Animals; Cooperative Behavior; Ecosystem; Evolution; Plants; Pollen; Reproduction; Systems Analysis; Animalia |
Año: | 2007
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Volumen: | 246
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Número: | 3
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Página de inicio: | 510
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Página de fin: | 521
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DOI: |
http://dx.doi.org/10.1016/j.jtbi.2006.12.033 |
Título revista: | Journal of Theoretical Biology
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Título revista abreviado: | J. Theor. Biol.
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ISSN: | 00225193
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CODEN: | JTBIA
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Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00225193_v246_n3_p510_Medan |
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Citas:
---------- APA ----------
Medan, D., Perazzo, R.P.J., Devoto, M., Burgos, E., Zimmermann, M.G., Ceva, H. & Delbue, A.M.
(2007)
. Analysis and assembling of network structure in mutualistic systems. Journal of Theoretical Biology, 246(3), 510-521.
http://dx.doi.org/10.1016/j.jtbi.2006.12.033---------- CHICAGO ----------
Medan, D., Perazzo, R.P.J., Devoto, M., Burgos, E., Zimmermann, M.G., Ceva, H., et al.
"Analysis and assembling of network structure in mutualistic systems"
. Journal of Theoretical Biology 246, no. 3
(2007) : 510-521.
http://dx.doi.org/10.1016/j.jtbi.2006.12.033---------- MLA ----------
Medan, D., Perazzo, R.P.J., Devoto, M., Burgos, E., Zimmermann, M.G., Ceva, H., et al.
"Analysis and assembling of network structure in mutualistic systems"
. Journal of Theoretical Biology, vol. 246, no. 3, 2007, pp. 510-521.
http://dx.doi.org/10.1016/j.jtbi.2006.12.033---------- VANCOUVER ----------
Medan, D., Perazzo, R.P.J., Devoto, M., Burgos, E., Zimmermann, M.G., Ceva, H., et al. Analysis and assembling of network structure in mutualistic systems. J. Theor. Biol. 2007;246(3):510-521.
http://dx.doi.org/10.1016/j.jtbi.2006.12.033