000085471 001__ 85471
000085471 005__ 20201122125253.0
000085471 0247_ $$2doi$$a10.1103/PhysRevX.9.031024
000085471 0248_ $$2sideral$$a113554
000085471 037__ $$aART-2019-113554
000085471 041__ $$aeng
000085471 100__ $$aPayrato-Borras, Claudia
000085471 245__ $$aBreaking the spell of nestedness: The entropic origin of nestedness in mutualistic systems
000085471 260__ $$c2019
000085471 5060_ $$aAccess copy available to the general public$$fUnrestricted
000085471 5203_ $$aMutualistic interactions, those that are naturally beneficial for both interacting species, are recurrently found in ecosystems. Observations of natural systems show that if we draw mutualistic relationships as links between species, the resulting mutualistic network of interactions displays a widespread particular ordering called nestedness. In such an ordering, the mutualistic partners of a given species conform a subset of the partners of all species with larger degree, that is, of those species having more interactions. On the other hand, theoretical works show that a nested structure has a positive impact on a number of relevant features of mutualistic communities ranging from species coexistence to structural stability and biodiversity. However, how nestedness emerges and what are its determinants, are still open challenges that have led to multiple debates to date. Here we show, by applying a theoretical approach to the analysis of 167 real mutualistic networks, that nestedness is not an irreducibly macroscopic feature but an entropic consequence of the degree sequences (number of mutualistic interactions of each species). Remarkably, we find that an outstanding majority of the analyzed networks does not show statistically significant nestedness. These findings point to the need of revising previous claims about the role of nestedness and might contribute to expand our understanding of how evolution shapes mutualistic interactions and communities by placing the focus on the node-dependent properties rather than on global quantities.
000085471 536__ $$9info:eu-repo/grantAgreement/ES/MINECO/FIS2017-87519-P
000085471 540__ $$9info:eu-repo/semantics/openAccess$$aAll rights reserved$$uhttp://www.europeana.eu/rights/rr-f/
000085471 590__ $$a12.577$$b2019
000085471 591__ $$aPHYSICS, MULTIDISCIPLINARY$$b5 / 85 = 0.059$$c2019$$dQ1$$eT1
000085471 592__ $$a7.458$$b2019
000085471 593__ $$aPhysics and Astronomy (miscellaneous)$$c2019$$dQ1
000085471 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000085471 700__ $$aHernandez, Laura
000085471 700__ $$0(orcid)0000-0002-0895-1893$$aMoreno, Yamir$$uUniversidad de Zaragoza
000085471 7102_ $$12004$$2405$$aUniversidad de Zaragoza$$bDpto. Física Teórica$$cÁrea Física Teórica
000085471 773__ $$g9, 3 (2019), 031024 [21 pp]$$pPhysical review. X$$tPhysical review. X$$x2160-3308
000085471 8564_ $$s1708202$$uhttps://zaguan.unizar.es/record/85471/files/texto_completo.pdf$$yVersión publicada
000085471 8564_ $$s101623$$uhttps://zaguan.unizar.es/record/85471/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000085471 909CO $$ooai:zaguan.unizar.es:85471$$particulos$$pdriver
000085471 951__ $$a2020-11-22-12:44:33
000085471 980__ $$aARTICLE