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Omega-3 long-chain polyunsaturated fatty acids support aerial insectivore performance more than food quantity

Omega-3 long-chain polyunsaturated fatty acids support aerial insectivore performance more than food quantity

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TWINING, Cornelia W., J. Thomas BRENNA, Peter LAWRENCE, J. Ryan SHIPLEY, Troy N. TOLLEFSON, David W. WINKLER, 2016. Omega-3 long-chain polyunsaturated fatty acids support aerial insectivore performance more than food quantity. In: Proceedings of the National Academy of Sciences of the United States of America (PNAS). National Academy of Sciences. 113(39), pp. 10920-10925. ISSN 0027-8424. eISSN 1091-6490. Available under: doi: 10.1073/pnas.1603998113

@article{Twining2016Omega-51809, title={Omega-3 long-chain polyunsaturated fatty acids support aerial insectivore performance more than food quantity}, year={2016}, doi={10.1073/pnas.1603998113}, number={39}, volume={113}, issn={0027-8424}, journal={Proceedings of the National Academy of Sciences of the United States of America (PNAS)}, pages={10920--10925}, author={Twining, Cornelia W. and Brenna, J. Thomas and Lawrence, Peter and Shipley, J. Ryan and Tollefson, Troy N. and Winkler, David W.}, note={Correction: https://doi.org/10.1073/pnas.1616962113} }

<rdf:RDF xmlns:dcterms="http://purl.org/dc/terms/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:bibo="http://purl.org/ontology/bibo/" xmlns:dspace="http://digital-repositories.org/ontologies/dspace/0.1.0#" xmlns:foaf="http://xmlns.com/foaf/0.1/" xmlns:void="http://rdfs.org/ns/void#" xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > <rdf:Description rdf:about="https://kops.uni-konstanz.de/rdf/resource/123456789/51809"> <foaf:homepage rdf:resource="http://localhost:8080/jspui"/> <dc:creator>Tollefson, Troy N.</dc:creator> <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/rdf/resource/123456789/28"/> <dc:contributor>Brenna, J. Thomas</dc:contributor> <dcterms:rights rdf:resource="https://rightsstatements.org/page/InC/1.0/"/> <bibo:uri rdf:resource="https://kops.uni-konstanz.de/handle/123456789/51809"/> <dc:contributor>Shipley, J. Ryan</dc:contributor> <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/rdf/resource/123456789/28"/> <dc:creator>Lawrence, Peter</dc:creator> <dc:creator>Twining, Cornelia W.</dc:creator> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2020-11-17T09:37:42Z</dc:date> <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/> <dc:creator>Shipley, J. Ryan</dc:creator> <dc:language>eng</dc:language> <dc:contributor>Tollefson, Troy N.</dc:contributor> <dcterms:issued>2016</dcterms:issued> <dcterms:abstract xml:lang="eng">Once-abundant aerial insectivores, such as the Tree Swallow (Tachycineta bicolor), have declined steadily in the past several decades, making it imperative to understand all aspects of their ecology. Aerial insectivores forage on a mixture of aquatic and terrestrial insects that differ in fatty acid composition, specifically long-chain omega-3 polyunsaturated fatty acid (LCPUFA) content. Aquatic insects contain high levels of both LCPUFA and their precursor omega-3 PUFA, alpha-linolenic acid (ALA), whereas terrestrial insects contain much lower levels of both. We manipulated both the quantity and quality of food for Tree Swallow chicks in a full factorial design. Diets were either high-LCPUFA or low in LCPUFA but high in ALA, allowing us to separate the effects of direct LCPUFA in diet from the ability of Tree Swallows to convert their precursor, ALA, into LCPUFA. We found that fatty acid composition was more important for Tree Swallow chick performance than food quantity. On high-LCPUFA diets, chicks grew faster, were in better condition, and had greater immunocompetence and lower basal metabolic rates compared with chicks on both low LCPUFA diets. Increasing the quantity of high-LCPUFA diets resulted in improvements to all metrics of performance while increasing the quantity of low-LCPUFA diets only resulted in greater immunocompetence and lower metabolic rates. Chicks preferentially retained LCPUFA in brain and muscle when both food quantity and LCPUFA were limited. Our work suggests that fatty acid composition is an important dimension of aerial insectivore nutritional ecology and reinforces the importance of high-quality aquatic habitat for these declining birds.</dcterms:abstract> <dc:creator>Brenna, J. Thomas</dc:creator> <dc:contributor>Lawrence, Peter</dc:contributor> <dc:contributor>Twining, Cornelia W.</dc:contributor> <dc:contributor>Winkler, David W.</dc:contributor> <dc:creator>Winkler, David W.</dc:creator> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2020-11-17T09:37:42Z</dcterms:available> <dcterms:title>Omega-3 long-chain polyunsaturated fatty acids support aerial insectivore performance more than food quantity</dcterms:title> <dc:rights>terms-of-use</dc:rights> </rdf:Description> </rdf:RDF>

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