| fullrecord |
[{"key": "dc.contributor.advisor", "value": "Lindstr\u00f6m, Leena", "language": "", "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.advisor", "value": "Margus, Aigi", "language": "", "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.author", "value": "Palvi, Anni", "language": "", "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2023-12-15T13:17:11Z", "language": null, "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2023-12-15T13:17:11Z", "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/123456789/92367", "language": null, "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Ilmastonmuutoksen on ennustettu aiheuttavan muutoksia erityisesti lauhkean vy\u00f6hykkeen talviolosuhteisiin. Ennusteiden mukaan l\u00e4mp\u00f6tila nousee ja lumipeite v\u00e4henee, mink\u00e4 on arveltu lis\u00e4\u00e4v\u00e4n maaper\u00e4n l\u00e4mp\u00f6tilaa ja l\u00e4mp\u00f6tilanvaihteluita. N\u00e4m\u00e4 muutokset voivat aiheuttaa erilaisia sopeutumishaasteita hy\u00f6nteisten talvehtimiseen. T\u00e4ss\u00e4 tutkimuksessa tutkittiin l\u00e4mp\u00f6tilan nousun ja vaihtelun vaikutusta minttukuoriaisiin (Chrysolina polita). Minttukuoriainen on lauhkean vy\u00f6hykkeen kovakuoriainen, joka talvehtii aikuisena maaper\u00e4n pintakerroksissa ja kest\u00e4\u00e4 hyvin kylm\u00e4altistusta ja jopa j\u00e4\u00e4tymist\u00e4. T\u00e4ss\u00e4 tutkimuksessa selvitettiin, miten talvil\u00e4mp\u00f6tilojen nousu ja vaihtelu vaikuttavat minttukuoriaisten massaan ja kuolleisuuteen. Tutkimusta varten 150 minttukuoriaista jaettiin kolmeen l\u00e4mp\u00f6tilak\u00e4sittelyryhm\u00e4\u00e4n (n = 50), kontrolli 5 \u00b0C, l\u00e4mmin talvi 7 \u00b0C ja l\u00e4mmin lumeton talvi 4-10 \u00b0C (vaihteleva l\u00e4mp\u00f6tila, ka = 7 \u00b0C). L\u00e4mmin talvi lis\u00e4si kuolleisuut-ta (16 %) verrattuna kontrolliryhm\u00e4\u00e4n (0 %). Kuolleisuus oli kuitenkin pient\u00e4 kaikissa ryhmiss\u00e4, mik\u00e4 kertoo minttukuoriaisen olevan yleisesti hyvin kest\u00e4v\u00e4 laji. Lis\u00e4ksi l\u00e4mmin talvi lis\u00e4si massan kulutusta, mutta lumettoman talven vaihteleva l\u00e4mp\u00f6tila ei edelleen vaikuttanut kuolleisuuteen tai massan kulutukseen merkitsev\u00e4sti. Naaraat menettiv\u00e4t enemm\u00e4n massaa, mutta kuitenkin prosentuaalisesti v\u00e4hemm\u00e4n kuin koiraat. Tutkimuksen perusteella ennustetun ilmastonmuutoksen aiheuttama l\u00e4mp\u00f6tilannousu tulee vaikeuttamaan lauhkean vy\u00f6hykkeen hy\u00f6nteisten talvehtimista ja lis\u00e4\u00e4m\u00e4\u00e4n kuolleisuutta ja massan kulutusta. T\u00e4m\u00e4 voi johtaa selviytyneiden ja lis\u00e4\u00e4ntym\u00e4\u00e4n p\u00e4\u00e4sevien hy\u00f6nteisten v\u00e4h\u00e4isemp\u00e4\u00e4n m\u00e4\u00e4r\u00e4\u00e4n ja huonompaan kuntoon, mik\u00e4 taas voi johtaa populaation pienenemiseen, mik\u00e4li selviytyneiden kuoriaisten j\u00e4lkel\u00e4iset eiv\u00e4t onnistu sopeutumaan muuttuviin talvehtimisolosuhteisiin tarpeeksi nopeasti.", "language": "fi", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.abstract", "value": "The predicted climate warming is going to have a strong effect on the winter temperature in the temperate zone. The increasing winter temperature and thin-ning of the winter snow cover might increase the soil temperature fluctuations. These changes will set challenges to insect diapause and other survival mecha-nisms. This paper discusses the effects of increasing and fluctuating temperatures on the mint beetles (Chrysolina polita). Mint beetle is a temperate zone species that overwinters as an adult in the shallow surface of the soil and has good cold and freeze tolerance. The study explored how the increased (+2 \u00b0C) and fluctuating temperature affects the beetle\u2019s mortality and body mass. For the research 150 mint beetles were divided into three temperature groups (n = 50), control 5 \u00b0C, warm winter 7 \u00b0C and warm winter without snow 4-10 \u00b0C (fluctuating, mean = 7 \u00b0C). The warm winter increased the mortality (16 %) compared to the control group (0 %). However, the mortality was low in all the groups which shows that this species is generally very tolerant. Also, the warm winter decreased body mass, while the fluctuating temperature of the winter without snow did not have a further effect on mortality or body mass. The females lost more mass (mg) than the males, but as a percentage (%) it was less than the males. Based on the results, the increasing temperature of the predicted climate change will decrease the overwintering insects' survival in the temperate zone. This can lead to a smaller amount and worse fitness of the surviving and mating insects, which can lead to a decrease in the population size if the offspring of the surviving insects cannot adapt to the changing wintering conditions fast enough.", "language": "en", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted by Miia Hakanen (mihakane@jyu.fi) on 2023-12-15T13:17:11Z\nNo. of bitstreams: 0", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2023-12-15T13:17:11Z (GMT). No. of bitstreams: 0\n Previous issue date: 2021", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "20", "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": "ilmaston l\u00e4mpeneminen", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "diapaussi", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.title", "value": "Ennustetun ilmastonmuutoksen aiheuttama l\u00e4mp\u00f6tilan nousu vaikeuttaa hy\u00f6nteisten talvehtimista lauhkealla vy\u00f6hykkeell\u00e4", "language": "", "element": "title", "qualifier": null, "schema": "dc"}, {"key": "dc.type", "value": "bachelor thesis", "language": null, "element": "type", "qualifier": null, "schema": "dc"}, {"key": "dc.identifier.urn", "value": "URN:NBN:fi:jyu-202312158360", "language": "", "element": "identifier", "qualifier": "urn", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Bachelor's thesis", "language": "en", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Kandidaatinty\u00f6", "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": "Ymp\u00e4rist\u00f6tiede", "language": "fi", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Environmental science", "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_7a1f", "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": "bachelorThesis", "language": null, "element": "type", "qualifier": "publication", "schema": "dc"}, {"key": "dc.subject.oppiainekoodi", "value": "40151", "language": "", "element": "subject", "qualifier": "oppiainekoodi", "schema": "dc"}, {"key": "dc.subject.yso", "value": "lepotila", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "ilmastonmuutokset", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "l\u00e4mp\u00f6tila", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "ilmasto", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "talvi", "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": "hy\u00f6nteiset", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "sopeutuminen", "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": "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"}]
|