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dc.contributor.author
Borzone Mas, Dalmiro
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dc.contributor.author
Scarabotti, Pablo Augusto
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dc.contributor.author
Alvarenga Mariani, Patricio Francisco
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dc.contributor.author
Arim, Matias
dc.date.available
2023-10-11T17:36:55Z
dc.date.issued
2022-10
dc.identifier.citation
Borzone Mas, Dalmiro; Scarabotti, Pablo Augusto; Alvarenga Mariani, Patricio Francisco; Arim, Matias; Symmetries and asymmetries in the topological roles of piscivorous fishes between occurrence networks and food webs; Wiley Blackwell Publishing, Inc; Journal Of Animal Ecology; 91; 10; 10-2022; 2061-2073
dc.identifier.issn
0021-8790
dc.identifier.uri
http://hdl.handle.net/11336/214902
dc.description.abstract
Ecological networks represent the architecture over which diversity is assembled. The compartmentalization of trophic links and the spatial aggregation of species determine ecosystem dynamics and stability. Species traits such as body size or those related to dispersal ability or environmental and trophic niche may determine the role of a species in different ecological networks such as food webs and occurrence networks. However, the empirical analysis of these connections and their determinants were seldom considered. Our study focused on 16 species of piscivorous fishes from 27 water bodies of the Paraná River floodplain, which were surveyed between 4 and 20 times over 5 years. Occurrence networks and food webs were built from abundance of species by site and preys by gut content. Using null models and methods for weighted bipartite networks, we evaluated the compartmentalization in both kinds of networks. The topological roles of species in each network along four hydro-climatic conditions were calculated, based on their membership in a module standardized within module connectivity ‘z’ and between module connectivity ‘c’ and related to species body size and 30 eco-morphological variables. A significant modular organization in feeding links and species occurrences was detected. While species of larger body size seem to have a main role connecting modules in food webs, the smaller size species foster the connection among spatial aggregations. However, body size was not the main determinant of intra module connectivity. Morphologies associated with linear races (fusiform body) and manoeuvrability (orbicular body) and predation behaviours were consistently related to intra and inter-module connectivity in food webs and occurrence networks. Our results support the modular organization of food webs and occurrence networks of the main consumers of the Paraná River floodplain and the trait-related interrelationship among these networks. Furthermore, the dynamic nature of the trait–role association may foster the stable modular structure observed at higher levels. The recognition of the connecting role of the species in the different networks will improve the understanding of their importance in the functioning of ecosystems, thus enhancing the knowledge of the mechanisms shaping biodiversity.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley Blackwell Publishing, Inc
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dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
BODY SIZE
dc.subject
ECOLOGICAL NETWORKS
dc.subject
ECOMORPHOLOGY
dc.subject
MODULARITY
dc.subject
NEOTROPICAL FLOODPLAIN
dc.subject
PARANÁ RIVER
dc.subject
SPECIES ROLES
dc.subject.classification
Ecología
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dc.subject.classification
Ciencias Biológicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Symmetries and asymmetries in the topological roles of piscivorous fishes between occurrence networks and food webs
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2023-07-18T14:27:26Z
dc.journal.volume
91
dc.journal.number
10
dc.journal.pagination
2061-2073
dc.journal.pais
Reino Unido
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dc.journal.ciudad
Londres
dc.description.fil
Fil: Borzone Mas, Dalmiro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; Argentina. Universidad de la República; Uruguay
dc.description.fil
Fil: Scarabotti, Pablo Augusto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; Argentina
dc.description.fil
Fil: Alvarenga Mariani, Patricio Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; Argentina
dc.description.fil
Fil: Arim, Matias. Universidad Nacional del Litoral; Argentina
dc.journal.title
Journal Of Animal Ecology
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://besjournals.onlinelibrary.wiley.com/doi/abs/10.1111/1365-2656.13784
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1111/1365-2656.13784
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