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[{"key": "dc.contributor.advisor", "value": "Vallius, Elisa", "language": "", "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.author", "value": "Tuominen, Aura", "language": "", "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2018-08-02T05:41:47Z", "language": "", "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2018-08-02T05:41:47Z", "language": "", "element": "date", "qualifier": "available", "schema": "dc"}, {"key": "dc.date.issued", "value": "2018", "language": "", "element": "date", "qualifier": "issued", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/59071", "language": "", "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Hy\u00f6nteisp\u00f6lytys ekosysteemipalveluna on uhattuna ymp\u00e4ri maailmaa, koska esimerkiksi intensiivinen maank\u00e4ytt\u00f6, hy\u00f6nteismyrkyt ja ilmastonmuutos vaikuttavat negatiivisesti p\u00f6lytt\u00e4j\u00e4hy\u00f6nteiskantoihin. P\u00f6lytt\u00e4jien hupenemisella tulee olemaan taloudellisia seurauksia, kun hy\u00f6nteisp\u00f6lytteisten hy\u00f6tykasvien sato k\u00e4rsii. Tutkielmassa selvitet\u00e4\u00e4n Suomen t\u00e4rkeimm\u00e4n mets\u00e4marjan, puolukan, hy\u00f6nteisp\u00f6lytyst\u00e4 ja sen rahallista arvoa. Puolukkaa p\u00f6lytt\u00e4v\u00e4\u00e4 hy\u00f6nteislajistoa ja sen uskollisuutta puolukalle selvitettiin seuraamalla p\u00f6lytt\u00e4ji\u00e4 puolukkapaikoilla ja m\u00e4\u00e4ritt\u00e4m\u00e4ll\u00e4 pyydystettyjen hy\u00f6nteisten kantamaa siitep\u00f6ly\u00e4. P\u00f6lytyksen vaikutusta satoon selvitettiin vertaamalla normaalin p\u00f6lytyksen saaneita versoja verrokkeihin, joilta p\u00f6lytys oli estetty. P\u00f6lytyskokeesta saatuja tuloksia k\u00e4ytettiin rahallisen arvon hahmottamiseen vertaamalla niit\u00e4 tilastoituihin puolukan poiminta- ja vientim\u00e4\u00e4riin ja marjakilosta maksettuihin keskim\u00e4\u00e4r\u00e4isiin hintoihin. Puolukkaa p\u00f6lyttiv\u00e4t ahkerimmin kimalaiset, jotka muodostivat 88 prosenttia p\u00f6lytysvierailuja tehneist\u00e4 hy\u00f6nteisist\u00e4, ja joiden kantamasta siitep\u00f6lyst\u00e4 keskim\u00e4\u00e4rin 88,4% oli l\u00e4ht\u00f6isin puolukan kukista. Puolukan sadosta hy\u00f6nteisp\u00f6lytyksen osuus oli 90,65%. T\u00e4ll\u00e4 luvulla laskettuna hy\u00f6nteisp\u00f6lytyksen rahallinen arvo olisi vuodesta 2006 l\u00e4htien keskim\u00e4\u00e4rin 19,2 miljoonaa euroa vuodessa, kun yhdist\u00e4\u00e4 kaupallisen ja kotitarvepoiminnan. Vuosien v\u00e4linen ero p\u00f6lytt\u00e4j\u00e4vierailuja tekevien hy\u00f6nteisten m\u00e4\u00e4r\u00e4ss\u00e4 oli valtava: Vuonna 2016 havaittiin keskim\u00e4\u00e4rin kahdeksan p\u00f6lytysvierailuja tekev\u00e4\u00e4 kimalaista tunnissa, vuonna 2017 vastaava luku oli alle yksi. Silti sadoissa ei ollut merkitsev\u00e4\u00e4 eroa. Tulos on odotusten vastaisena kiinnostava ja vaatisi lis\u00e4tutkimusta.", "language": "fi", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted by Paivi Vuorio (paelvuor@jyu.fi) on 2018-08-02T05:41:47Z\r\nNo. of bitstreams: 0", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2018-08-02T05:41:47Z (GMT). No. of bitstreams: 0\r\n Previous issue date: 2018", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "43", "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": "ekosysteemipalvelut", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.title", "value": "Puolukan hy\u00f6nteisp\u00f6lytys ekosysteemipalveluna", "language": "", "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-201808023708", "language": "", "element": "identifier", "qualifier": "urn", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Pro gradu -tutkielma", "language": "fi", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Master\u2019s thesis", "language": "en", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Matemaattis-luonnontieteellinen tiedekunta", "language": "fi", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Faculty of Sciences", "language": "en", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Bio- ja ymp\u00e4rist\u00f6tieteiden laitos", "language": "fi", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Department of Biological and Environmental Science", "language": "en", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "Jyv\u00e4skyl\u00e4n yliopisto", "language": "fi", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "University of Jyv\u00e4skyl\u00e4", "language": "en", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Ymp\u00e4rist\u00f6tiede ja -teknologia", "language": "fi", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Environmental science and technology", "language": "en", "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.accesslevel", "value": "openAccess", "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": "4015", "language": "", "element": "subject", "qualifier": "oppiainekoodi", "schema": "dc"}, {"key": "dc.subject.yso", "value": "puolukka (laji)", "language": "", "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "p\u00f6lytys", "language": "", "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "luonnonmarjat", "language": "", "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "kimalaiset", "language": "", "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.type.okm", "value": "G2", "language": null, "element": "type", "qualifier": "okm", "schema": "dc"}]
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