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Artículo

Architecture of marine food webs: To be or not be a ‘small-world’

Marina, Tomas IgnacioIcon ; Saravia, Leonardo Ariel; Cordone, Georgina FlorenciaIcon ; Salinas, Vanesa AnabellaIcon ; Doyle, Santiago RaúlIcon ; Momo, Fernando Roberto
Fecha de publicación: 05/2018
Editorial: Public Library of Science
Revista: Plos One
e-ISSN: 1932-6203
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Ecología

Resumen

The search for general properties in network structure has been a central issue for food web studies in recent years. One such property is the small-world topology that combines a high clustering and a small distance between nodes of the network. This property may increase food web resilience but make them more sensitive to the extinction of connected species. Food web theory has been developed principally from freshwater and terrestrial ecosystems, largely omitting marine habitats. If theory needs to be modified to accommodate observations from marine ecosystems, based on major differences in several topological characteristics is still on debate. Here we investigated if the small-world topology is a common structural pattern in marine food webs. We developed a novel, simple and statistically rigorous method to examine the largest set of complex marine food webs to date. More than half of the analyzed marine networks exhibited a similar or lower characteristic path length than the random expectation, whereas 39% of the webs presented a significantly higher clustering than its random counterpart. Our method proved that 5 out of 28 networks fulfilled both features of the small-world topology: short path length and high clustering. This work represents the first rigorous analysis of the small-world topology and its associated features in high-quality marine networks. We conclude that such topology is a structural pattern that is not maximized in marine food webs; thus it is probably not an effective model to study robustness, stability and feasibility of marine ecosystems.
Palabras clave: Food web , Architecture , Small word
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/88265
DOI: https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0198217
DOI: http://dx.doi.org/10.1371/journal.pone.0198217
Colecciones
Articulos(CADIC)
Articulos de CENTRO AUSTRAL DE INVESTIGACIONES CIENTIFICAS
Articulos(CESIMAR)
Articulos de CENTRO PARA EL ESTUDIO DE SISTEMAS MARINOS
Citación
Marina, Tomas Ignacio; Saravia, Leonardo Ariel; Cordone, Georgina Florencia; Salinas, Vanesa Anabella; Doyle, Santiago Raúl; et al.; Architecture of marine food webs: To be or not be a ‘small-world’; Public Library of Science; Plos One; 13; 5; 5-2018; 1-13; e0198217
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