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[{"key": "dc.contributor.advisor", "value": "Kyt\u00f6viita, Minna-Maarit", "language": "", "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.advisor", "value": "\u00d6vermark, Elsi", "language": "", "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.author", "value": "Karjalainen, Henri", "language": "", "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2020-06-16T10:05:24Z", "language": null, "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2020-06-16T10:05:24Z", "language": null, "element": "date", "qualifier": "available", "schema": "dc"}, {"key": "dc.date.issued", "value": "2020", "language": "", "element": "date", "qualifier": "issued", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/69971", "language": null, "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Puolukka (Vaccinium vitis-idaea) on yleinen ja kaupallisesti t\u00e4rke\u00e4 kotimainen luonnonmarja. Sen p\u00f6lytysekologiaa ei tunneta tarkasti, mutta kimalaisten (Bombus spp.) on arveltu olevan sen tehokkaimpien p\u00f6lytt\u00e4jien joukossa. T\u00e4m\u00e4n tutkimuksen tavoitteena oli selvitt\u00e4\u00e4, mitk\u00e4 p\u00f6lytt\u00e4j\u00e4t tuottavat puolukalla suurimman marja- ja siementuoton keskisuomalaisessa mets\u00e4ekosysteemiss\u00e4. Lis\u00e4ksi ker\u00e4ttiin tietoa siit\u00e4, mit\u00e4 hy\u00f6nteisi\u00e4 kukilla vieraili ja miss\u00e4 suhteessa. Kes\u00e4ll\u00e4 2019 tehdyss\u00e4 kentt\u00e4kokeessa tarkkailtiin puolukan kukkien hy\u00f6nteisvierailuja kahdeksassa kangasmets\u00e4ss\u00e4. Kukinnan p\u00e4\u00e4tteeksi tarkkailluilta koealoilta ker\u00e4ttiin kyps\u00e4t marjat ja laskettiin niiden siemenet. Marja- ja siementuottoa verrattiin jokaisessa mets\u00e4ss\u00e4 olleen kolmen k\u00e4sittelyn v\u00e4lill\u00e4; 1) avoin p\u00f6lytys, 2) mehil\u00e4isp\u00f6lytys ja 3) p\u00f6lytt\u00e4m\u00e4t\u00f6n kontrolli. Puoleen metsist\u00e4 oli lis\u00e4tty tarhatut mehil\u00e4ispes\u00e4t, jotta n\u00e4ht\u00e4isiin, onko tarhamehil\u00e4isest\u00e4 (Apis mellifera) tehokkaaksi puolukan p\u00f6lytt\u00e4j\u00e4ksi. P\u00f6lytt\u00e4j\u00e4tarkkailussa yleisin kotimainen vierailijaryhm\u00e4 oli Andrena-suvun maamehil\u00e4iset. Avoimen p\u00f6lytyksen koealojen marja- ja siementuotto olivat keskiarvoiltaan mehil\u00e4isp\u00f6lytyst\u00e4 korkeammat, mutta k\u00e4sittelyiden v\u00e4lill\u00e4 ei ollut tilastollisesti merkitsev\u00e4\u00e4 eroa. N\u00e4in ollen kimalaisten vaikutus puolukan p\u00f6lytyksess\u00e4 j\u00e4i odotettua pienemm\u00e4ksi. Mehil\u00e4ispesien lis\u00e4\u00e4misell\u00e4 ei my\u00f6sk\u00e4\u00e4n ollut tilastollisesti merkitsev\u00e4\u00e4 vaikutusta, vaikka marja- ja siementuotto olivat keskim\u00e4\u00e4rin korkeampia niiss\u00e4 metsiss\u00e4, joihin pesi\u00e4 oli lis\u00e4tty. Tarhamehil\u00e4isen tehokkuus puolukan p\u00f6lytt\u00e4j\u00e4n\u00e4 on siis ep\u00e4selv\u00e4. T\u00e4m\u00e4 tutkimus antoi lis\u00e4tietoa puolukan p\u00f6lytysekologiasta Keski-Suomessa ja osoitti, ett\u00e4 sill\u00e4 ei v\u00e4ltt\u00e4m\u00e4tt\u00e4 ole yht\u00e4 selke\u00e4sti t\u00e4rkeint\u00e4 p\u00f6lytt\u00e4j\u00e4\u00e4.", "language": "fi", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Lingonberry (Vaccinium vitis-idaea) is a common and economically significant wild berry native to Finland. Its pollination ecology is not well-known, but it is believed that bumblebees (Bombus spp.) are among its most effective pollinators. The aim of this study was to determine which insect pollinators provide lingonberry the largest yields of berries and seeds in forest ecosystem in Central Finland. Additionally, the types and relative proportions of visiting insects were surveyed. A field experiment was conducted in the summer of 2019, in which the visitors of lingonberry flowers were observed in eight boreal forest sites. Ripe berries were collected from the study plots and their seeds were counted. The yields of berries and seeds were compared among the three treatments in each of the forests: 1) open pollination, 2) bee pollination and 3) unpollinated control. Half of the forests had beehives to determine whether the western honeybee (Apis mellifera) is an efficient pollinator for lingonberry. The most commonly observed native flower visitors were mining bees from the genus Andrena. The average yields of berries and seeds were larger in plots of open pollination than in plots of bee pollination, but the difference was not statistically significant. Therefore, the effect of bumblebees was smaller than expected. The beehives had no significant effect either, although the average yields of berries and seeds were larger in the forests with beehives. The effect of western honeybee as a pollinator of lingonberry thus remains unclear. This study provided information about the pollination ecology of lingonberry in Central Finland and indicated that it does not necessarily have a single most efficient pollinator.", "language": "en", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted by Miia Hakanen (mihakane@jyu.fi) on 2020-06-16T10:05:24Z\nNo. of bitstreams: 0", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2020-06-16T10:05:24Z (GMT). No. of bitstreams: 0\n Previous issue date: 2020", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "33", "language": "", "element": "format", "qualifier": "extent", "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": "Apis", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "Bombus", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "kimalaisp\u00f6lytys", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "p\u00f6lytysekologia", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.title", "value": "P\u00f6lytt\u00e4j\u00e4tyypin vaikutus puolukan (Vaccinium vitis-idaea) marja- ja siementuottoon", "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-202006164204", "language": "", "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": "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": "Ekologia ja evoluutiobiologia", "language": "fi", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Ecology and evolutionary biology", "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": "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": "4011", "language": "", "element": "subject", "qualifier": "oppiainekoodi", "schema": "dc"}, {"key": "dc.subject.yso", "value": "p\u00f6lytys", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "kasvit", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "marjat", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "tarhamehil\u00e4inen", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "luonnonmarjat", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "p\u00f6lytt\u00e4j\u00e4t", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "kimalaiset", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "siitep\u00f6ly", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "mehil\u00e4ispes\u00e4t", "language": null, "element": "subject", "qualifier": "yso", "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": "Tekij\u00e4 ei ole antanut lupaa avoimeen julkaisuun, joten aineisto on luettavissa vain Jyv\u00e4skyl\u00e4n yliopiston kirjaston <a href=\"https://kirjasto.jyu.fi/fi/tyoskentelytilat/laitteet-ja-tilat\">arkistoty\u00f6asemalta</a>.", "language": "fi", "element": "rights", "qualifier": "accessrights", "schema": "dc"}, {"key": "dc.rights.accessrights", "value": "<br><br>The author has not given permission to make the work publicly available electronically. Therefore the material can be read only at the archival <a href=\"https://kirjasto.jyu.fi/en/workspaces/facilities\">workstation</a> at Jyv\u00e4skyl\u00e4 University Library reserved for the use of archival materials.", "language": "en", "element": "rights", "qualifier": "accessrights", "schema": "dc"}]
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