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[{"key": "dc.contributor.advisor", "value": "Taipale, Sami", "language": null, "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.advisor", "value": "Ruuskanen, Suvi", "language": null, "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.author", "value": "M\u00e4kel\u00e4, Meri", "language": null, "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2024-04-05T05:13:47Z", "language": null, "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2024-04-05T05:13:47Z", "language": null, "element": "date", "qualifier": "available", "schema": "dc"}, {"key": "dc.date.issued", "value": "2024", "language": null, "element": "date", "qualifier": "issued", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/94185", "language": null, "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Vesiekosysteemit ravitsevat maaekosysteemej\u00e4 kuluttajille fysiologisesti v\u00e4ltt\u00e4m\u00e4tt\u00f6mill\u00e4 rasvahapoilla. N\u00e4m\u00e4 pitk\u00e4ketjuiset monityydyttym\u00e4tt\u00f6m\u00e4t rasvahapot kulkeutuvat maaekosysteemien ravintoverkkoihin esimerkiksi vedest\u00e4 kuoriutuvien hy\u00f6nteisten mukana. Vesiekosysteemin ominaisuudet voivat kuitenkin vaikuttaa tuotettujen monityydyttym\u00e4tt\u00f6mien rasvahappojen \nm\u00e4\u00e4riin ja kulkeutumiseen, mutta t\u00e4t\u00e4 aihetta ei ole juuri tutkittu. T\u00e4ss\u00e4 pro gradu -ty\u00f6ss\u00e4 selvitin, onko hy\u00f6nteisravinnon tarjonta yht\u00e4l\u00e4inen tummavetisen, \nrunsasravinteisen majavaj\u00e4rven ja kirkasvetisen, v\u00e4h\u00e4ravinteisen majavattoman j\u00e4rven rannoilla sek\u00e4 mets\u00e4ss\u00e4. Lis\u00e4ksi tutkin, ovatko akvaattiset hy\u00f6nteiset\nterrestrisi\u00e4 hy\u00f6nteisi\u00e4 laadukkaampaa ravintoa monityydyttym\u00e4tt\u00f6mien rasvahappojen n\u00e4k\u00f6kulmasta ja vaikuttaako majavan toteuttama ymp\u00e4rist\u00f6nmuokkaus ja j\u00e4rvityyppi hy\u00f6nteisravinnon laatuun. Lis\u00e4ksi \ntarkastelin, hy\u00f6dynt\u00e4v\u00e4tk\u00f6 kirjosiepot akvaattista hy\u00f6nteisravintoa ja heijastuuko t\u00e4m\u00e4 kirjosieppojen veriplasman rasvahappoprofiileihin. N\u00e4ytteeksi \nker\u00e4ttiin hy\u00f6nteisi\u00e4 sek\u00e4 kirjosieponpoikasten veriplasmaa eri koealoilta. Analysoin n\u00e4ytteist\u00e4 rasvahappoprofiilit sek\u00e4 rasvahappojen yhdistespesifiset hiilen isotooppiarvot. Tulokset osoittivat, ett\u00e4 akvaattisen hy\u00f6nteisravinnon m\u00e4\u00e4r\u00e4 oli suurempi tummavetisell\u00e4 majavaj\u00e4rvell\u00e4. Akvaattiset hy\u00f6nteiset sis\u00e4lsiv\u00e4t terrestrisi\u00e4 hy\u00f6nteisi\u00e4 enemm\u00e4n pitk\u00e4ketjuisia monityydyttym\u00e4tt\u00f6mi\u00e4 rasvahappoja, ja runsaampi akvaattisen ravinnon hy\u00f6dynt\u00e4minen n\u00e4kyi \nmajavaj\u00e4rven poikasten veriplasmassa korkeampana fysiologisesti v\u00e4ltt\u00e4m\u00e4tt\u00f6mien rasvahappojen m\u00e4\u00e4r\u00e4n\u00e4. J\u00e4rvien ominaisuuksilla ei kuitenkaan ollut vaikutusta akvaattisen hy\u00f6nteisravinnon laatuun. Jatkotutkimuksessa on syyt\u00e4 selvitt\u00e4\u00e4, mik\u00e4 on pitk\u00e4ketjuisten monityydyttym\u00e4tt\u00f6mien rasvahappojen vaikutus lintujen pesim\u00e4menestykselle.", "language": "fi", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Long-chain polyunsaturated fatty acids are primarily produced in aquatic ecosystems. They are transported into terrestrial food webs, for example, by insects which emerge from the water. The influence of aquatic ecosystem characteristics on the production and transport of these fatty acids has not been \nstudied extensively. My objective in this thesis was to examine the availability of insect food on the lakeshore of a dark-watered, eutrophic beaver lake and in the lakeshore of clear-watered, oligotrophic lake, as well as in the forest. Additionally, I aimed to determine whether aquatic insects are a higher quality food source than terrestrial insects in terms of polyunsaturated fatty acids, and whether beaver environmental modification and lake type affect the amounts of polyunsaturated fatty acids in aquatic insects. I also examined whether pied flycatchers consume aquatic insects and if this is reflected in the fatty acid profiles of their blood plasma. I collected aquatic and terrestrial insects and blood plasma of pied flycatcher nestlings from different experimental sites. I analysed the fatty acid profiles and compound-specific carbon isotope values from the samples. The results of this thesis indicate that the amount of aquatic insect prey was higher in the beaver lake. Aquatic insects contain more long-chain polyunsaturated fatty acids than terrestrial insects. The higher utilisation of aquatic food is reflected in the higher levels of physiologically essential fatty acids in the blood plasma of beaver lake nestlings. However, the characteristics of the lakes seem to have no effect on the quality of aquatic insects. Further research is needed to determine the effect of long-chain polyunsaturated fatty acids on nesting success of birds.", "language": "en", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted by Paivi Vuorio (paelvuor@jyu.fi) on 2024-04-05T05:13:47Z\nNo. of bitstreams: 0", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2024-04-05T05:13:47Z (GMT). No. of bitstreams: 0\n Previous issue date: 2024", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "67", "language": "", "element": "format", "qualifier": "extent", "schema": "dc"}, {"key": "dc.format.mimetype", "value": "application/pdf", "language": null, "element": "format", "qualifier": "mimetype", "schema": "dc"}, {"key": "dc.language.iso", "value": "fin", "language": null, "element": "language", "qualifier": "iso", "schema": "dc"}, {"key": "dc.rights", "value": "In Copyright", "language": "en", "element": "rights", "qualifier": null, "schema": "dc"}, {"key": "dc.subject.other", "value": "ekosysteemien kytkeytyneisyys", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.title", "value": "Majavan ymp\u00e4rist\u00f6nmuokkauksen ja j\u00e4rvityypin yhteisvaikutus kirjosiepon (Ficedula hypoleuca) ravintoon : hy\u00f6nteisravinnon m\u00e4\u00e4r\u00e4n ja laadun vertailu erilaisissa pesim\u00e4paikoissa", "language": null, "element": "title", "qualifier": null, "schema": "dc"}, {"key": "dc.type", "value": "master thesis", "language": null, "element": "type", "qualifier": null, "schema": "dc"}, {"key": "dc.identifier.urn", "value": "URN:NBN:fi:jyu-202404052754", "language": null, "element": "identifier", "qualifier": "urn", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Master\u2019s thesis", "language": "en", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Pro gradu -tutkielma", "language": "fi", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Faculty of Sciences", "language": "en", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Matemaattis-luonnontieteellinen tiedekunta", "language": "fi", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Department of Biological and Environmental Science", "language": "en", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Bio- ja ymp\u00e4rist\u00f6tieteiden laitos", "language": "fi", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "University of Jyv\u00e4skyl\u00e4", "language": "en", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "Jyv\u00e4skyl\u00e4n yliopisto", "language": "fi", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Environmental science", "language": "en", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Ymp\u00e4rist\u00f6tiede", "language": "fi", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "yvv.contractresearch.funding", "value": "0", "language": "", "element": "contractresearch", "qualifier": "funding", "schema": "yvv"}, {"key": "dc.type.coar", "value": "http://purl.org/coar/resource_type/c_bdcc", "language": null, "element": "type", "qualifier": "coar", "schema": "dc"}, {"key": "dc.rights.copyright", "value": "\u00a9 The Author(s)", "language": null, "element": "rights", "qualifier": "copyright", "schema": "dc"}, {"key": "dc.rights.accesslevel", "value": "restrictedAccess", "language": null, "element": "rights", "qualifier": "accesslevel", "schema": "dc"}, {"key": "dc.type.publication", "value": "masterThesis", "language": null, "element": "type", "qualifier": "publication", "schema": "dc"}, {"key": "dc.subject.oppiainekoodi", "value": "40151", "language": null, "element": "subject", "qualifier": "oppiainekoodi", "schema": "dc"}, {"key": "dc.subject.yso", "value": "ymp\u00e4rist\u00f6nmuutokset", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "linnut", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "ravinto", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "rasvahapot", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "hy\u00f6nteiset", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "kirjosieppo", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "ravintoverkot", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.format.content", "value": "fulltext", "language": null, "element": "format", "qualifier": "content", "schema": "dc"}, {"key": "dc.rights.url", "value": "https://rightsstatements.org/page/InC/1.0/", "language": null, "element": "rights", "qualifier": "url", "schema": "dc"}, {"key": "dc.rights.accessrights", "value": "The author has not given permission to make the work publicly available electronically. Therefore the material can be read only at the archival workstation at Jyv\u00e4skyl\u00e4 University Library (https://kirjasto.jyu.fi/en/workspaces/facilities/facilities#autotoc-item-autotoc-2).", "language": "en", "element": "rights", "qualifier": "accessrights", "schema": "dc"}, {"key": "dc.rights.accessrights", "value": "Tekij\u00e4 ei ole antanut lupaa avoimeen julkaisuun, joten aineisto on luettavissa vain Jyv\u00e4skyl\u00e4n yliopiston kirjaston arkistoty\u00f6semalta. Ks. https://kirjasto.jyu.fi/fi/tyoskentelytilat/laitteet-ja-tilat#autotoc-item-autotoc-2.", "language": "fi", "element": "rights", "qualifier": "accessrights", "schema": "dc"}]
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