The division of food space among mammalian species on biomes

Understanding how species’ ecological partitioning functions across biomes is fun- damental to macroecology and conservation biology. Here, we examine the global distribution of dietary strategies in terrestrial mammals, focusing on how biome spe- cialization modulates trophic diversity and structur...

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Detalhes bibliográficos
Autores: Gamboa Jurado-Centurión, Sara, Galván, Sofía, Sobral, Mar, Hernández Fernández, Manuel, Varela, Sara
Formato: artículo
Fecha de publicación:2025
País:España
Recursos:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/124622
Acesso em linha:https://hdl.handle.net/20.500.14352/124622
Access Level:acceso abierto
Palavra-chave:biome specialization
diet
feeding strategies
generalists
macroecology
specialists
Biología
Zoología
Mamíferos
Ecología (Biología)
Evolución
24 Ciencias de la Vida
2401 Biología Animal (Zoología)
2401.06 Ecología Animal
2401.23 Vertebrados
2401.18 Mamíferos
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oai_identifier_str oai:docta.ucm.es:20.500.14352/124622
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repository_id_str
spelling The division of food space among mammalian species on biomesGamboa Jurado-Centurión, SaraGalván, SofíaSobral, MarHernández Fernández, ManuelVarela, Sarabiome specializationdietfeeding strategiesgeneralistsmacroecologyspecialistsBiologíaZoologíaMamíferosEcología (Biología)Evolución24 Ciencias de la Vida2401 Biología Animal (Zoología)2401.06 Ecología Animal2401.23 Vertebrados2401.18 MamíferosUnderstanding how species’ ecological partitioning functions across biomes is fun- damental to macroecology and conservation biology. Here, we examine the global distribution of dietary strategies in terrestrial mammals, focusing on how biome spe- cialization modulates trophic diversity and structure at a broad geographical scale. Using species-level data from over 3600 terrestrial mammal species, we constructed a multivariate dietary space and quantified the area, redundancy, dispersion, uniqueness, and turnover of trophic strategies across ten major biomes. Species were classified as biome specialists, moderate generalists, or extreme generalists based on their biome breadth. By analysing biome specialists and generalists separately, we show that biome specialists tend to exhibit more constrained and compositionally distinct dietary niches in less productive biomes, while generalists, particularly moderate generalists, dominate functional space occupancy in all biomes, even the harsher ones such as tundra and taiga. This highlights how environmental constraints and ecological roles shape trophic strategies at a global scale. Notably, extreme generalists tended to exhibit more carnivorous or insectivorous diets, suggesting a strategy based on mobile preda- tion or opportunism rather than a highly diversified omnivory. Despite these general patterns, highly productive biomes supported the greatest diversity of dietary strate- gies, with higher functional redundancy and niche packing. Nestedness and turnover analyses revealed that biome specialists diets are often subsets of generalists diets, but with significant compositional shifts across biomes. These findings underscore the dual role of biome generalists as both functional stabilizers and potential limiters of eco- logical diversity, and highlight the vulnerability of specialist species to global change. Our study offers a mechanistic framework for understanding how dietary strategies interact with environmental filtering, and for identifying functional risks in changing ecosystems.WileyUniversidad Complutense de Madrid20252025-05-2920252025-05-29journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/124622reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/1246222026-06-02T12:44:21Z
dc.title.none.fl_str_mv The division of food space among mammalian species on biomes
title The division of food space among mammalian species on biomes
spellingShingle The division of food space among mammalian species on biomes
Gamboa Jurado-Centurión, Sara
biome specialization
diet
feeding strategies
generalists
macroecology
specialists
Biología
Zoología
Mamíferos
Ecología (Biología)
Evolución
24 Ciencias de la Vida
2401 Biología Animal (Zoología)
2401.06 Ecología Animal
2401.23 Vertebrados
2401.18 Mamíferos
title_short The division of food space among mammalian species on biomes
title_full The division of food space among mammalian species on biomes
title_fullStr The division of food space among mammalian species on biomes
title_full_unstemmed The division of food space among mammalian species on biomes
title_sort The division of food space among mammalian species on biomes
dc.creator.none.fl_str_mv Gamboa Jurado-Centurión, Sara
Galván, Sofía
Sobral, Mar
Hernández Fernández, Manuel
Varela, Sara
author Gamboa Jurado-Centurión, Sara
author_facet Gamboa Jurado-Centurión, Sara
Galván, Sofía
Sobral, Mar
Hernández Fernández, Manuel
Varela, Sara
author_role author
author2 Galván, Sofía
Sobral, Mar
Hernández Fernández, Manuel
Varela, Sara
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv biome specialization
diet
feeding strategies
generalists
macroecology
specialists
Biología
Zoología
Mamíferos
Ecología (Biología)
Evolución
24 Ciencias de la Vida
2401 Biología Animal (Zoología)
2401.06 Ecología Animal
2401.23 Vertebrados
2401.18 Mamíferos
topic biome specialization
diet
feeding strategies
generalists
macroecology
specialists
Biología
Zoología
Mamíferos
Ecología (Biología)
Evolución
24 Ciencias de la Vida
2401 Biología Animal (Zoología)
2401.06 Ecología Animal
2401.23 Vertebrados
2401.18 Mamíferos
description Understanding how species’ ecological partitioning functions across biomes is fun- damental to macroecology and conservation biology. Here, we examine the global distribution of dietary strategies in terrestrial mammals, focusing on how biome spe- cialization modulates trophic diversity and structure at a broad geographical scale. Using species-level data from over 3600 terrestrial mammal species, we constructed a multivariate dietary space and quantified the area, redundancy, dispersion, uniqueness, and turnover of trophic strategies across ten major biomes. Species were classified as biome specialists, moderate generalists, or extreme generalists based on their biome breadth. By analysing biome specialists and generalists separately, we show that biome specialists tend to exhibit more constrained and compositionally distinct dietary niches in less productive biomes, while generalists, particularly moderate generalists, dominate functional space occupancy in all biomes, even the harsher ones such as tundra and taiga. This highlights how environmental constraints and ecological roles shape trophic strategies at a global scale. Notably, extreme generalists tended to exhibit more carnivorous or insectivorous diets, suggesting a strategy based on mobile preda- tion or opportunism rather than a highly diversified omnivory. Despite these general patterns, highly productive biomes supported the greatest diversity of dietary strate- gies, with higher functional redundancy and niche packing. Nestedness and turnover analyses revealed that biome specialists diets are often subsets of generalists diets, but with significant compositional shifts across biomes. These findings underscore the dual role of biome generalists as both functional stabilizers and potential limiters of eco- logical diversity, and highlight the vulnerability of specialist species to global change. Our study offers a mechanistic framework for understanding how dietary strategies interact with environmental filtering, and for identifying functional risks in changing ecosystems.
publishDate 2025
dc.date.none.fl_str_mv 2025
2025-05-29
2025
2025-05-29
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14352/124622
url https://hdl.handle.net/20.500.14352/124622
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Wiley
publisher.none.fl_str_mv Wiley
dc.source.none.fl_str_mv reponame:Docta Complutense
instname:Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
reponame_str Docta Complutense
collection Docta Complutense
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812429

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