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[{"key": "dc.contributor.advisor", "value": "Kyt\u00f6viita, Minna-Maarit", "language": "", "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.author", "value": "Papunen, Jenna", "language": null, "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2017-12-12T21:08:16Z", "language": "", "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2017-12-12T21:08:16Z", "language": "", "element": "date", "qualifier": "available", "schema": "dc"}, {"key": "dc.date.issued", "value": "2017", "language": null, "element": "date", "qualifier": "issued", "schema": "dc"}, {"key": "dc.identifier.other", "value": "oai:jykdok.linneanet.fi:1808356", "language": null, "element": "identifier", "qualifier": "other", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/56285", "language": "", "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Haitalliset vieraslajit ovat uhka ekosysteemeille kaikkialla maailmassa. Vieraslajeilla voi olla merkitt\u00e4v\u00e4 vaikutus alkuper\u00e4isten lajien menestymiseen vieraslajien uusilla levinneisyysalueilla. Vieraskasvilajien menestymisen taustalla on monia viel\u00e4 kohtalaisen tuntemattomia mekanismeja, joita ovat muun muassa vieraslajien vapautuminen luonnonvaraisista vihollisista uudella levinneisyysalueella, tehokas ravinnekilpailu ja alkuper\u00e4isille kasvilajeille vieraiden allelopaattisten yhdisteiden tuotanto. T\u00e4m\u00e4n tutkimuksen tavoitteena oli selvitt\u00e4\u00e4, vaikuttaako edellinen kasvisukupolvi seuraavan kasvisukupolven menestymiseen maan v\u00e4lityksell\u00e4 ja vaikuttaako yhteinen evolutiivinen historia kasvien maan v\u00e4lityksell\u00e4 tapahtuvaan vuorovaikutukseen. Tutkimus toteutettiin kaksivaiheisen kasvihuonekokeen avulla. Tutkimuksessa tutkittiin maan k\u00e4sittelyvaiheessa kasvatettujen kasvien vaikutusta vastelajien menestymiseen. Kasvualustassa kasvatettiin maan k\u00e4sittelyvaiheessa j\u00e4ttipalsamia (Impatiens glandulifera) ja komealupiinia (Lupinus polyphyllus), jotka ovat Suomessa vieraslajeja sek\u00e4 Suomessa alkuper\u00e4ist\u00e4 timoteita (Phleum pratense). Lis\u00e4ksi perustettiin kaksi kontrollik\u00e4sittely\u00e4, jotka erosivat ravinnepitoisuuden suhteen. Responssikokeessa 1 istutettiin maan k\u00e4sittelyvaiheessa k\u00e4siteltyihin kasvualustoihin vastelajit, joiden kasvuvasteita tutkittiin. Vastelajeista nelj\u00e4 oli alkuper\u00e4isi\u00e4 kasvilajeja ja yksi oli vieraslaji. Vastelajien korkean kuolleisuuden vuoksi perustettiin responssikoe 2, jonka avulla selvitettiin, johtuuko taimien suuri kuolleisuus sattumasta. Edellinen kasvisukupolvi vaikutti seuraavan kasvisukupolven menestymiseen kasvualustalla heikent\u00e4en seuraavan kasvisukupolven kasvua. Edellinen kasvisukupolvi kuitenkin vaikutti eri vastelajeihin eri tavoin. Yhteisell\u00e4 evolutiivisella historialla ei ollut vaikutusta seuraavan kasvisukupolven menestymiseen. Alkuper\u00e4islaji timotei vaikutti voimakkaammin vastelajien kasvuun kuin vieraslajit ja heikensi etenkin vieraslajin kasvua. Tuloksia voivat selitt\u00e4\u00e4 muun muassa edellisen kasvisukupolven voimakas resurssien kulutus, patogeenien kertyminen tai alkuper\u00e4isen lajin allelopaattinen vaikutus vieraslajiin. Tulokset viittaavat siihen, ett\u00e4 alkuper\u00e4iset kasvilajit voivat vastustaa vieraslajien levi\u00e4mist\u00e4 ja heikent\u00e4\u00e4 vieraslajien kasvua paremmin kuin on aiemmin oletettu.", "language": "fi", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.abstract", "value": "The effect of invasive plant species on the success of native plant species via soil.\r\n\r\nInvasive plant species are a potential threat to ecosystems around the world. Invasive species can have a great effect on the success of native plant species and communities. Diverse mechanisms can be behind the invasion success of the invasive plant species. These mechanisms may include the release from natural enemies, such as pathogens in their new range, more efficient resource competition or secretion of novel allelochemicals that can suppress the growth of the native plant species. The aim of this study was to examine if previous plant generation affects the success of the next plant generation and does the common evolutionary history affect the plant soil feedback of different plant generations. The study was performed as a two-phase greenhouse experiment. In the soil treatment phase of the experiment, invasive species Impatiens glandulifera and Lupinus polyphyllus and native Phleum pratense were planted on sand-filled pots. In addition, two control treatments with different nutrient levels were established. The soil treatment plants were removed and four native and one invasive plant species (response plants) were planted into the treated soils. Response plants had a high mortality rate in response experiment 1 and therefore response experiment 2 was founded. The previous plant generation affected the growth and success of the next plant generation by supressing the growth. The previous plant generation had different effects on different response plant species. The common evolutionary history did not affect the success of the next plant generation. The native Phleum pratense had stronger effect on the growth of the next plant generation than invasive plants. Phleum pratense had the strongest suppressive effect on the growth of invasive response plants, and invasive response plants died in both response experiments. Strong resource consumption of the previous generation, pathogen accumulation and \u2018unknown weapons\u2019 could at least partially explain the results. These results suggest that native plant species might be able to resist the invasion of invasive plant species and reduce the growth of invasive species better than has been formerly thought.", "language": "en", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted using Plone Publishing form by Jenna Papunen (jejupapu) on 2017-12-12 21:08:15.419596. Form: Pro gradu -lomake (https://kirjasto.jyu.fi/julkaisut/julkaisulomakkeet/pro-gradu-lomake). JyX data: [jyx_publishing-allowed (fi) =False]", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted by jyx lomake-julkaisija (jyx-julkaisija.group@korppi.jyu.fi) on 2017-12-12T21:08:16Z\r\nNo. of bitstreams: 2\r\nURN:NBN:fi:jyu-201712124652.pdf: 1822575 bytes, checksum: 500685247986fa60c73707f474c62000 (MD5)\r\nlicense.html: 1165 bytes, checksum: 30fcb222cd1571f1b085e1e0a7cee8c7 (MD5)", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2017-12-12T21:08:16Z (GMT). No. of bitstreams: 2\r\nURN:NBN:fi:jyu-201712124652.pdf: 1822575 bytes, checksum: 500685247986fa60c73707f474c62000 (MD5)\r\nlicense.html: 1165 bytes, checksum: 30fcb222cd1571f1b085e1e0a7cee8c7 (MD5)\r\n Previous issue date: 2017", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "1 verkkoaineisto (43 sivua)", "language": null, "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": "interference competition", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "invasive species", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "Novel weapons -hypothesis", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "plant-soil feedback", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "plant generations", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "resource competition", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.title", "value": "Vieraslajien vaikutus alkuper\u00e4isten kasvilajien menestymiseen maaper\u00e4n v\u00e4lityksell\u00e4", "language": null, "element": "title", "qualifier": null, "schema": "dc"}, {"key": "dc.type", "value": "master thesis", "language": null, "element": "type", "qualifier": null, 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Aineisto on luettavissa Jyv\u00e4skyl\u00e4n yliopiston kirjaston arkistoty\u00f6asemalta. Ks. https://kirjasto.jyu.fi/fi/tyoskentelytilat/laitteet-ja-tilat.", "language": "fi", "element": "rights", "qualifier": "accessrights", "schema": "dc"}, {"key": "dc.rights.accessrights", "value": "This material has a restricted access due to copyright reasons. It can be read at the workstation at Jyv\u00e4skyl\u00e4 University Library reserved for the use of archival materials: https://kirjasto.jyu.fi/en/workspaces/facilities.", "language": "en", "element": "rights", "qualifier": "accessrights", "schema": "dc"}, {"key": "dc.type.okm", "value": "G2", "language": null, "element": "type", "qualifier": "okm", "schema": "dc"}]
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