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Degree of intervality of food webs: From body-size data to models

  • Datos identificativos

    Identificador: imarina:9285303
    Autores:
    Capitan, Jose AArenas, AlexGuimera, Roger
    Resumen:
    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.
  • Otros:

    Autor según el artículo: Capitan, Jose A; Arenas, Alex; Guimera, Roger
    Departamento: Enginyeria Informàtica i Matemàtiques Enginyeria Química
    Autor/es de la URV: Arenas Moreno, Alejandro / Guimera Manrique, Roger
    Palabras clave: 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
    Resumen: 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.
    Áreas temáticas: 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)
    Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/
    Direcció de correo del autor: roger.guimera@urv.cat alexandre.arenas@urv.cat
    Identificador del autor: 0000-0002-3597-4310 0000-0003-0937-0334
    Fecha de alta del registro: 2024-09-28
    Versión del articulo depositado: info:eu-repo/semantics/acceptedVersion
    Enlace a la fuente original: https://www.sciencedirect.com/science/article/abs/pii/S0022519313002762
    URL Documento de licencia: https://repositori.urv.cat/ca/proteccio-de-dades/
    Referencia al articulo segun fuente origial: Journal Of Theoretical Biology. 334 35-44
    Referencia de l'ítem segons les normes 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
    DOI del artículo: 10.1016/j.jtbi.2013.06.004
    Entidad: Universitat Rovira i Virgili
    Año de publicación de la revista: 2013
    Tipo de publicación: Journal Publications
  • Palabras clave:

    Agricultural and Biological Sciences (Miscellaneous),Applied Mathematics,Biochemistry, Genetics and Molecular Biology (Miscellaneous),Biology,Biology, Miscellaneous,Immunology and Microbiology (Miscellaneous),Mathematical & Computational Biology,Medicine (Miscellaneous),Modeling and Simulati,Modeling and Simulation,Statistics and Probabili
    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
    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
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