Changes in invertebrate food web structure between high- and low-productivity environments are driven by intermediate but not top-predator diet shifts

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Autor(es): dc.contributorUniversity of California-
Autor(es): dc.contributorNorthern Arizona University-
Autor(es): dc.contributorUSDA Forest Service Rocky Mountain Research Station-
Autor(es): dc.contributorJohns Hopkins Bloomberg School of Public Health-
Autor(es): dc.contributorYale University-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUSDA ARS Eastern Oregon Agricultural Research Center-
Autor(es): dc.contributorStanford University-
Autor(es): dc.contributorColorado State University-
Autor(es): dc.creatorMiller-Ter Kuile, Ana-
Autor(es): dc.creatorApigo, Austen-
Autor(es): dc.creatorBui, An-
Autor(es): dc.creatorButner, Kirsten-
Autor(es): dc.creatorChildress, Jasmine N.-
Autor(es): dc.creatorCopeland, Stephanie-
Autor(es): dc.creatorDifiore, Bartholomew P.-
Autor(es): dc.creatorForbes, Elizabeth S.-
Autor(es): dc.creatorKlope, Maggie-
Autor(es): dc.creatorMotta, Carina I.-
Autor(es): dc.creatorOrr, Devyn-
Autor(es): dc.creatorPlummer, Katherine A.-
Autor(es): dc.creatorPreston, Daniel L.-
Autor(es): dc.creatorYoung, Hillary S.-
Data de aceite: dc.date.accessioned2025-08-21T19:17:37Z-
Data de disponibilização: dc.date.available2025-08-21T19:17:37Z-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2022-10-25-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1098/rsbl.2022.0364-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/246187-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/246187-
Descrição: dc.descriptionPredator-prey interactions shape ecosystem stability and are influenced by changes in ecosystem productivity. However, because multiple biotic and abiotic drivers shape the trophic responses of predators to productivity, we often observe patterns, but not mechanisms, by which productivity drives food web structure. One way to capture mechanisms shaping trophic responses is to quantify trophic interactions among multiple trophic groups and by using complementary metrics of trophic ecology. In this study, we combine two diet-tracing methods: diet DNA and stable isotopes, for two trophic groups (top predators and intermediate predators) in both low- and high-productivity habitats to elucidate where in the food chain trophic structure shifts in response to changes in underlying ecosystem productivity. We demonstrate that while top predators show increases in isotopic trophic position (δ 15 N) with productivity, neither their isotopic niche size nor their DNA diet composition changes. Conversely, intermediate predators show clear turnover in DNA diet composition towards a more predatory prey base in high-productivity habitats. Taking this multi-trophic approach highlights how predator identity shapes responses in predator-prey interactions across environments with different underlying productivity, building predictive power for understanding the outcomes of ongoing anthropogenic change.-
Descrição: dc.descriptionEcology Evolution and Marine Biology Department University of California-
Descrição: dc.descriptionSchool of Informatics Computing and Cyber Systems Northern Arizona University-
Descrição: dc.descriptionUSDA Forest Service Rocky Mountain Research Station-
Descrição: dc.descriptionDepartment of Molecular Microbiology and Immunology Johns Hopkins Bloomberg School of Public Health-
Descrição: dc.descriptionYale School of the Environment Yale University-
Descrição: dc.descriptionDepartamento de Biodiversidade Universidade Estadual Paulista Júlio de Mesquita Filho, Av. 24 A, 1515 - Bela Vista, SP-
Descrição: dc.descriptionUSDA ARS Eastern Oregon Agricultural Research Center-
Descrição: dc.descriptionDepartment of Biology Stanford University-
Descrição: dc.descriptionDepartment of Fish Wildlife and Conservation Biology Colorado State University-
Descrição: dc.descriptionDepartamento de Biodiversidade Universidade Estadual Paulista Júlio de Mesquita Filho, Av. 24 A, 1515 - Bela Vista, SP-
Idioma: dc.languageen-
Relação: dc.relationBiology Letters-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectAraneae-
Palavras-chave: dc.subjectdiet DNA metabarcoding-
Palavras-chave: dc.subjectfood chain-
Palavras-chave: dc.subjectstable isotope analysis-
Título: dc.titleChanges in invertebrate food web structure between high- and low-productivity environments are driven by intermediate but not top-predator diet shifts-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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