Study of the influence of the phylogenetic distance on the interaction network of mutualistic ecosystems

Roberto P.J. Perazzo, Laura Hernández, Horacio Ceva, Enrique Burgos and José Ignacio Alvarez-Hamelin

Physica A: Statistical Mechanics and its Applications, 2014, vol. 394, issue C, 124-135

Abstract: We investigate how the phylogenetic relationship between the species of each interacting guild in a mutualistic ecosystem influences its network of contacts. We develop a dynamical self organized model that reallocates contacts between mutualists, according to a contact preference rule (CPR) that takes into account phylogenetic distances. We conclude that a CPR that promotes phylogenetic proximity among the counterparts of the species of each guild leads to highly unrealistic contact patterns. We find that nestedness can instead be attributed to a general rule by which species tend to behave as generalists holding contacts with counterparts that already have a large number of contacts.

Keywords: Bipartite networks; Self organisation; Mutualistic ecosystems; Complex organisation (search for similar items in EconPapers)
Date: 2014
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:394:y:2014:i:c:p:124-135

DOI: 10.1016/j.physa.2013.08.052

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