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[{"key": "dc.contributor.advisor", "value": "Komonen, Atte", "language": "", "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.advisor", "value": "Siitonen, Juha", "language": "", "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.author", "value": "Vainio, Heli", "language": "", "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2022-02-21T08:57:26Z", "language": null, "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2022-02-21T08:57:26Z", "language": null, "element": "date", "qualifier": "available", "schema": "dc"}, {"key": "dc.date.issued", "value": "2021", "language": "", "element": "date", "qualifier": "issued", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/79856", "language": null, "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Luonnossa erilaiset luontaiset h\u00e4iri\u00f6t ovat kaikille ekosysteemeille tyypillisi\u00e4, mutta Fennoskandiassa hakkuut ovat nykyisin syrj\u00e4ytt\u00e4neet luontaiset h\u00e4iri\u00f6t boreaalisten metsien t\u00e4rkeimp\u00e4n\u00e4 h\u00e4iri\u00f6n\u00e4. Hakkuut vaikuttavat my\u00f6s metsien kovakuoriaislajistoon, ja niist\u00e4 erityisesti joko suoraan tai v\u00e4lillisesti puustosta riippuvaisiin lajeihin. Tasaik\u00e4isen mets\u00e4nkasvatuksen vaikutukset kuoriaislajistoon tunnetaan kohtuullisen hyvin, mutta eri-ik\u00e4israkenteisen mets\u00e4nkasvatuksen hakkuutapojen vaikutukset tunnetaan huonosti erityisesti keskipitk\u00e4ll\u00e4 ja pitk\u00e4ll\u00e4 aikav\u00e4lill\u00e4. Jos eri-ik\u00e4israkenteiseen menetelm\u00e4\u00e4n pohjautuvat hakkuutavat tukevat sulkeutuneen mets\u00e4n lajiston s\u00e4ilymist\u00e4 yleisesti k\u00e4ytettyj\u00e4 avohakkuita paremmin, antaisi se toivoa mets\u00e4talouden ja luonnon monimuotoisuuden yll\u00e4pit\u00e4misen paremmasta yhdist\u00e4misest\u00e4. T\u00e4ss\u00e4 tutkielmassa selvitin, miten eri-ik\u00e4israkenteiset hakkuutavat vaikuttivat boreaalisen kuusivaltaisen (Picea abies) mets\u00e4n kovakuoriaislajiston lajim\u00e4\u00e4riin ja lajikoostumukseen 10 vuotta hakkuiden j\u00e4lkeen. T\u00e4t\u00e4 varten ker\u00e4ttiin kovakuoriaisaineisto ikkunapyydyksill\u00e4 kuusivaltaiselta alueelta Kuhmoisista Keski-Suomesta vuosi ennen hakkuita ja yksi, kolme ja kymmenen vuotta hakkuiden j\u00e4lkeen. Uudistuskypsi\u00e4 koemetsik\u00f6it\u00e4 k\u00e4siteltiin nelj\u00e4ll\u00e4 tavalla (poiminta-, pienaukko- ja avohakkuu, k\u00e4sittelem\u00e4t\u00f6n kontrolli, n = 3\u20145). Kustakin metsik\u00f6st\u00e4 mitattiin hakkuuintensiteetti, aukkokoko ja j\u00e4re\u00e4n lahopuun tilavuus. Hakkuutavat eiv\u00e4t selitt\u00e4neet kuoriaisten kokonaislajim\u00e4\u00e4r\u00e4\u00e4, mutta ei-saproksyylien ja niist\u00e4 erotettujen herbivorien lajim\u00e4\u00e4r\u00e4 oli merkitsev\u00e4sti korkeampi avo- ja pienaukkohakkuilla. Ymp\u00e4rist\u00f6muuttujista vain aukkokoko selitti kokonaislajim\u00e4\u00e4r\u00e4\u00e4. Saproksyylien lajim\u00e4\u00e4r\u00e4\u00e4 laski kasvava hakkuuintensiteetti mutta j\u00e4re\u00e4 lahopuu nosti lajim\u00e4\u00e4r\u00e4\u00e4. Ei-saproksyylien ja herbivorien lajim\u00e4\u00e4r\u00e4\u00e4 nosti kasvava aukkokoko. Hakkuutavoista avo- ja pienaukkohakkuu vaikuttivat s\u00e4ilyneiden lajien osuuksiin ja uusien lajien m\u00e4\u00e4riin. Lajikoostumus poikkesi avohakkuilla enemm\u00e4n kontrolleista kuin muissa k\u00e4sittelyiss\u00e4, mutta poimintahakkuilla se ei juuri eronnut kontrolleista. Pienaukkohakkuun lajikoostumus asettui edellisten v\u00e4liin. Tulokset ovat linjassa aiempien tutkimusten kanssa, ja ne tukevat eri-ik\u00e4israkenteisen mets\u00e4nkasvatuksen positiivisia vaikutuksia sulkeutuneen mets\u00e4n kuoriaislajistoon verrattuna tasaik\u00e4israkenteiseen talousmets\u00e4\u00e4n.", "language": "fi", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.abstract", "value": "In nature, various disturbances are typical for all ecosystems, but in Fennoscandia logging has now replaced natural disturbances as the main disturbance of boreal forests. Logging also affects the beetle fauna of forests, and in particular the beetle species that are either directly or indirectly dependent on forest cover. The effects of even-aged forestry on beetle fauna are reasonable well-known, but the effects of uneven-aged forestry are poorly understood especially in the medium- and long-time interval. If cutting methods based on uneven-aged forestry maintain the fauna of closed forests better than clear-cutting, it gives hope for a better combination of forestry and maintaining of biodiversity. In this master thesis I studied, how uneven-aged cutting methods affected to the species diversity and the community structure of beetle fauna in boreal Norway spruce dominated (Picea abies) forests after ten-year period. For this purpose, beetle samples were collected with window traps from spruce-dominated area in Kuhmoinen in Central Finland one year before and one, three and 10 years after cutting. Mature forest stands were treated four different ways (selection, gap and clear-cutting and untreated control, n = 3\u20145). Cutting intensity, gap size and coarse dead wood were also measured for each stand. Cutting methods did not explain the total number of beetle species, but the species diversity of non-saproxylic species and herbivores was significantly higher in clear- and gap-cuttings. Gap size was the only environmental variable that explained total species diversity of beetle fauna. The number of saproxylic species was decreased by increasing cutting intensity but it increased with larger gap size. The number of non-saproxylic species and herbivores was increased with larger gap size. Clear- and gap-cutting affected the proportions of preserved species and the number of new species. Community structure of beetle fauna differed more between clear-cutting and controls than between other cutting methods and controls. Instead, community structure of selection-cuttings barely differed from controls. Community structure of gap-cuttings settled between clear- and gap-cuttings. The results agree with earlier research and support the positive effects of uneven-aged forestry to the beetle fauna of closed forest compared to even-aged forestry.", "language": "en", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted by Miia Hakanen (mihakane@jyu.fi) on 2022-02-21T08:57:26Z\nNo. of bitstreams: 0", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2022-02-21T08:57:26Z (GMT). No. of bitstreams: 0\n Previous issue date: 2021", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "51", "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": "Coleoptera", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "eri-ik\u00e4israkenteinen kasvatus", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "GLM", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "ikkunapyydys", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "sekundaarisukkessio", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.title", "value": "Eri hakkuutapojen vaikutukset boreaalisen kuusivaltaisen mets\u00e4n kovakuoriaislajistoon 10 vuotta hakkuiden j\u00e4lkeen", "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-202202211594", "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": "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.collaborator", "value": "public", "language": "", "element": "contractresearch", "qualifier": "collaborator", "schema": "yvv"}, {"key": "yvv.contractresearch.funding", "value": "0", "language": "", "element": "contractresearch", "qualifier": "funding", "schema": "yvv"}, {"key": "yvv.contractresearch.initiative", "value": "student", "language": "", "element": "contractresearch", "qualifier": "initiative", "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": "mets\u00e4t", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "hakkuut", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "lajit", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "kovakuoriaiset", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "luonnon monimuotoisuus", "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/collections/archival-workstation).", "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/kokoelmat/arkistotyoasema..", "language": "fi", "element": "rights", "qualifier": "accessrights", "schema": "dc"}, {"key": "dc.type.okm", "value": "G2", "language": null, "element": "type", "qualifier": "okm", "schema": "dc"}]
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