Author, as appears in the article.: Capitan, Jose A; Arenas, Alex; Guimera, Roger
Department: Enginyeria Informàtica i Matemàtiques Enginyeria Química
URV's Author/s: Arenas Moreno, Alejandro / Guimera Manrique, Roger
Keywords: Trophic level Theoretical model Species specificity Species size Priority journal Predatory behavior Predation Numerical model Niche dimension Niche Network analysis Models, biological Marine environment Food-web structure Food web Food chain Feeding behavior Ecosystem Ecological niche Ecological networks Ecological modeling Diet contiguity Diet Computer simulation Body size Article Animals Algorithms niche dimension food-web structure ecological networks diet contiguity
Abstract: In food webs, the degree of intervality of consumers' diets is an indicator of the number of dimensions that are necessary to determine the niche of a species. Previous studies modeling food-web structure have shown that real networks are compatible with a high degree of diet contiguity. However, current models are also compatible with the opposite, namely that species' diets have relatively low contiguity. This is particularly true when one takes species' body size as a proxy for niche value, in which case the indeterminacy of diet contiguities provided by current models can be large. We propose a model that enables us to narrow down the range of possible values of diet contiguity. According to this model, we find that diet contiguity not only can be high, but must be high when species are ranked in ascending order of body size. © 2013 Elsevier Ltd.
Thematic Areas: Zootecnia / recursos pesqueiros Statistics and probability Química Modeling and simulation Modeling and simulati Medicine (miscellaneous) Medicine (all) Medicina ii Medicina i Mathematical & computational biology Matemática / probabilidade e estatística Interdisciplinar Immunology and microbiology (miscellaneous) Immunology and microbiology (all) General medicine General immunology and microbiology General biochemistry,genetics and molecular biology General agricultural and biological sciences Farmacia Engenharias iv Engenharias iii Engenharias ii Engenharias i Enfermagem Ciências biológicas ii Ciências biológicas i Ciências agrárias i Ciência de alimentos Ciência da computação Biotecnología Biology, miscellaneous Biology Biodiversidade Biochemistry, genetics and molecular biology (miscellaneous) Biochemistry, genetics and molecular biology (all) Astronomia / física Applied mathematics Agricultural and biological sciences (miscellaneous) Agricultural and biological sciences (all)
licence for use: https://creativecommons.org/licenses/by/3.0/es/
Author's mail: roger.guimera@urv.cat alexandre.arenas@urv.cat
Author identifier: 0000-0002-3597-4310 0000-0003-0937-0334
Record's date: 2024-09-28
Papper version: info:eu-repo/semantics/acceptedVersion
Link to the original source: https://www.sciencedirect.com/science/article/abs/pii/S0022519313002762
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Papper original source: Journal Of Theoretical Biology. 334 35-44
APA: Capitan, Jose A; Arenas, Alex; Guimera, Roger (2013). Degree of intervality of food webs: From body-size data to models. Journal Of Theoretical Biology, 334(), 35-44. DOI: 10.1016/j.jtbi.2013.06.004
Article's DOI: 10.1016/j.jtbi.2013.06.004
Entity: Universitat Rovira i Virgili
Journal publication year: 2013
Publication Type: Journal Publications
Repositori URV