DNA metabarcoding Passerine bird feces at tree-line uncovers little intra- and inter-species dietary overlap

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dc.contributor.authorBookwalter, Jamieca
dc.contributor.authorNiyas, Afaq M Mohamedca
dc.contributor.authorCaballero-López, Bertaca
dc.contributor.authorVillari, Caterinaca
dc.contributor.authorMarco-Tresserras, Janaca
dc.contributor.authorBurgas, Albertca
dc.contributor.authorFerrandiz-Rovira, Marionaca
dc.contributor.authorClaramunt-López, Bernatca
dc.contributor.authorConsorci del Museu de Ciències Naturals de Barcelonaca
dc.date.accessioned2023-11-07T13:19:41Z-
dc.date.available2023-11-07T13:19:41Z-
dc.date.issued2023-07-04-
dc.identifierhttp://hdl.handle.net/2072/536774-
dc.identifier.urihttp://hdl.handle.net/11703/132822-
dc.description.abstractHigh-elevation insectivorous birds are currently confronted with the reality of a changing climate, land use shifts, and the decline of many prey groups. The diet dynamics among many imperiled animals in this group are still unresolved. Exam- ining the diets of tree-line Passerine birds to the species level of the prey allows for stronger population predictions. This study uses DNA metabarcoding to identify prey arthropods from adult Passerine bird feces at and slightly below tree-line in a Pyrenean forest. Our objective was to quantify the intra-and inter-species richness and overlap of Passerine bird diet over time and space. The results showed that adult Passerine diets have high inter- and intra-species dietary variability and low inter- and intra-species dietary overlap. The lack of association between dietary richness and open space, season, and eleva- tion and lack of differences between dietary overlap and open space and elevation suggest high-elevation Passerine birds have very high dietary flexibility. The results also showed that aphids known to be pests to conifers, and other conifer pests, were prevalent in the birds’ diets. The Passerine diets and high rate of rare dietary items are mainly in line with other recent DNA metabarcoding studies. Implications for the long-term projections relative to tree-line Passerine populations are discussed.ca
dc.description.abstractHigh-elevation insectivorous birds are currently confronted with the reality of a changing climate, land use shifts, and the decline of many prey groups. The diet dynamics among many imperiled animals in this group are still unresolved. Exam- ining the diets of tree-line Passerine birds to the species level of the prey allows for stronger population predictions. This study uses DNA metabarcoding to identify prey arthropods from adult Passerine bird feces at and slightly below tree-line in a Pyrenean forest. Our objective was to quantify the intra-and inter-species richness and overlap of Passerine bird diet over time and space. The results showed that adult Passerine diets have high inter- and intra-species dietary variability and low inter- and intra-species dietary overlap. The lack of association between dietary richness and open space, season, and eleva- tion and lack of differences between dietary overlap and open space and elevation suggest high-elevation Passerine birds have very high dietary flexibility. The results also showed that aphids known to be pests to conifers, and other conifer pests, were prevalent in the birds’ diets. The Passerine diets and high rate of rare dietary items are mainly in line with other recent DNA metabarcoding studies. Implications for the long-term projections relative to tree-line Passerine populations are discussed.en
dc.description.abstractHigh-elevation insectivorous birds are currently confronted with the reality of a changing climate, land use shifts, and the decline of many prey groups. The diet dynamics among many imperiled animals in this group are still unresolved. Exam- ining the diets of tree-line Passerine birds to the species level of the prey allows for stronger population predictions. This study uses DNA metabarcoding to identify prey arthropods from adult Passerine bird feces at and slightly below tree-line in a Pyrenean forest. Our objective was to quantify the intra-and inter-species richness and overlap of Passerine bird diet over time and space. The results showed that adult Passerine diets have high inter- and intra-species dietary variability and low inter- and intra-species dietary overlap. The lack of association between dietary richness and open space, season, and eleva- tion and lack of differences between dietary overlap and open space and elevation suggest high-elevation Passerine birds have very high dietary flexibility. The results also showed that aphids known to be pests to conifers, and other conifer pests, were prevalent in the birds’ diets. The Passerine diets and high rate of rare dietary items are mainly in line with other recent DNA metabarcoding studies. Implications for the long-term projections relative to tree-line Passerine populations are discussed.es
dc.format.extent11 p.ca
dc.languageengca
dc.rightsCC-BYca
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/ca
dc.subjectADNca
dc.subjectPasseriformesca
dc.subjectExcrementsca
dc.subjectAlimentació animalca
dc.subjectAfídidsca
dc.subjectAràcnidsca
dc.subjectInsectesca
dc.subjectADNen
dc.subjectPasseriformesen
dc.subjectExcrementsen
dc.subjectAlimentació animalen
dc.subjectAfídidsen
dc.subjectAràcnidsen
dc.subjectInsectesen
dc.subjectADNes
dc.subjectPasseriformeses
dc.subjectExcrementses
dc.subjectAlimentació animales
dc.subjectAfídidses
dc.subjectAràcnidses
dc.subjectInsecteses
dc.titleDNA metabarcoding Passerine bird feces at tree-line uncovers little intra- and inter-species dietary overlapca
dc.typetextca
dc.provenanceRecercat (Dipòsit de la Recerca de Catalunya)ca
dc.subject.categoryCiència i tecnologiaca
dc.subject.formaarticlesca
dc.identifier.entitatconsorcisca
dc.rights.notes© The Author(s) 2023ca
metadadalocal.dependencia8008920-
dc.type.driverinfo:eu-repo/semantics/articleca
dc.type.driverinfo:eu-repo/semantics/publishedVersionca
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