| fullrecord |
[{"key": "dc.contributor.advisor", "value": "Nokelainen, Ossi", "language": null, "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.advisor", "value": "Mappes, Johanna", "language": null, "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.author", "value": "Siiril\u00e4, Tuisku", "language": "", "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2024-01-05T07:39:16Z", "language": null, "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2024-01-05T07:39:16Z", "language": null, "element": "date", "qualifier": "available", "schema": "dc"}, {"key": "dc.date.issued", "value": "2023", "language": null, "element": "date", "qualifier": "issued", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/92547", "language": null, "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Predation is a significant selection pressure on populations of prey species and as a result many species have evolved different defense mechanisms against predators. Various toxic, foul-tasting or smelly substances, spike and shield structures, and warning and protective colours are typical examples of defense mechanisms. Aposematic species use their warning colour to signal to predators that they are poisonous or otherwise poor-quality prey and thus try to avoid being targeted by the predators. The purpose of this study was to find out how predation pressure on the aposematic wood tiger moth (Arctia plantaginis) varies as the summer progresses and how the observed predation pressure is distributed between different colour morphs of A. plantaginis males. The study was carried out as a field predation experiment, where artificial model moths were used as prey. The models were made to resemble the three different colour morphs of adult A. plantaginis males found in Finland: two white morphs and one yellow. The model moths were pinned on tree trunks along the test transects and left in the field for three days. After this, the moths were picked up from the transects and checked for possible signs of attack and marked as either attacked or not attacked. In total, the exam consisted of 16 different transects, which were divided over an eight-week period. A transect count of birds was carried out from each transect, so that the possible effect of the structure of the local predator community on the predation pressure could also be examined. In this experiment, the progression of the summer or the colour morph were not found to affect the predation pressure of the wood tiger moth. The presence of certain bird species was found to increase the predation pressure of the transects, but the effect was evenly distributed among all colour morphs. The location of the transect was also found to affect the predation pressure in a statistically significant way. The forests in which the transects were located had varying characteristics and thus, based on this, no single factor can be named that would have influenced the strength of the predation pressure. Predation pressure can be determined by the sum of many different factors, and environmental conditions should not be ignored as a possible factor that has an influence on predation risk.", "language": "en", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Saalistus on merkitt\u00e4v\u00e4 valintapaine saalislajien populaatioille ja t\u00e4m\u00e4n seurauksena monille lajeille on kehittynyt erilaisia puolustusmekanismeja saalistajia vastaan. Erilaiset myrkylliset, pahanmakuiset tai -hajuiset aineet, piikki- ja kilpirakenteet sek\u00e4 varoitus- ja suojav\u00e4rit ovat tyypillisi\u00e4 esimerkkej\u00e4 puolustusmekanismeista. Aposemaattiset lajit viestitt\u00e4v\u00e4t saalistajille varoitusv\u00e4rins\u00e4 avulla olevansa myrkyllisi\u00e4 tai muuten huonolaatuisia saaliita ja pyrkiv\u00e4t siten v\u00e4ltt\u00e4m\u00e4\u00e4n saalistuksen kohteeksi joutumisen. T\u00e4m\u00e4n tutkimuksen tarkoituksena oli tutkia, kuinka aposemaattisen t\u00e4pl\u00e4siilikk\u00e4\u00e4n (Arctia plantaginis) saalistuspaine vaihtelee kes\u00e4n edetess\u00e4 ja kuinka havaittu saalistuspaine jakautuu aikuisten A. plantaginis -koiraiden eri v\u00e4rimuotojen v\u00e4lill\u00e4. Tutkimus toteutettiin maastossa teht\u00e4v\u00e4n\u00e4 saalistuskokeena, jossa saaliina k\u00e4ytettiin keinotekoisia malliperhosia, jotka vastasivat A. plantaginis -koiraiden kolmea Suomessa tavattavaa v\u00e4rimuotoa: kahta valkoista ja yht\u00e4 keltaista. Malliperhoset neulattiin kiinni koelinjojen varrella sijaitseviin puunrunkoihin ja j\u00e4tettiin maastoon kolmeksi p\u00e4iv\u00e4ksi. T\u00e4m\u00e4n j\u00e4lkeen perhoset noudettiin maastosta ja tarkastettiin mahdollisten hy\u00f6kk\u00e4ysj\u00e4lkien varalta ja merkattiin joko hy\u00f6k\u00e4tyiksi tai hy\u00f6kk\u00e4\u00e4m\u00e4tt\u00f6miksi. Kokonaisuudessaan koe koostui 16:sta eri koelinjasta, jotka oli jaettu kahdeksan viikon aikajaksolle. Jokaiselta koelinjalta suoritettiin linnuston linjalaskenta, jotta my\u00f6s paikallisen saalistajayhteis\u00f6n rakenteen mahdollista vaikutusta saalistuspaineeseen voitiin tarkastella. Kes\u00e4n etenemisen tai v\u00e4rimuodon ei t\u00e4ss\u00e4 kokeessa havaittu vaikuttavan t\u00e4pl\u00e4siilikk\u00e4\u00e4n saalistuspaineeseen. Tiettyjen linturyhmien esiintymisen havaittiin nostavan saalistuspainetta koelinjoilla, mutta vaikutus kohdistui tasaisesti kaikkiin v\u00e4rimuotoihin. My\u00f6s koelinjan sijainnin havaittiin vaikuttavan saalistuspaineeseen tilastollisesti merkitsev\u00e4sti. Mets\u00e4t, joissa koelinjat sijaitsivat, olivat ominaisuuksiltaan vaihtelevia, joten mit\u00e4\u00e4n t\u00e4rkeint\u00e4 saalistuspaineen vahvuuteen vaikuttavaa tekij\u00e4\u00e4 ei t\u00e4m\u00e4n perusteella voida nimet\u00e4. Saalistuspaine voi m\u00e4\u00e4r\u00e4yty\u00e4 monen eri tekij\u00e4n yhteissummana, eik\u00e4 ymp\u00e4rist\u00f6n olosuhteita tule sivuuttaa mahdollisina osatekij\u00f6in\u00e4.", "language": "fi", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted by Paivi Vuorio (paelvuor@jyu.fi) on 2024-01-05T07:39:16Z\nNo. of bitstreams: 0", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2024-01-05T07:39:16Z (GMT). No. of bitstreams: 0\n Previous issue date: 2023", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "30", "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": "aposematismi", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.title", "value": "Fenologian vaikutus aposemaattisen t\u00e4pl\u00e4siilikk\u00e4\u00e4n (Arctia plantaginis) v\u00e4rimuotojen saalistuspaineeseen", "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-202401051050", "language": null, "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": "Faculty of Sciences", "language": "en", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Matemaattis-luonnontieteellinen tiedekunta", "language": "fi", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Department of Biological and Environmental Science", "language": "en", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Bio- ja ymp\u00e4rist\u00f6tieteiden laitos", "language": "fi", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "University of Jyv\u00e4skyl\u00e4", "language": "en", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "Jyv\u00e4skyl\u00e4n yliopisto", "language": "fi", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Ecology and evolutionary biology", "language": "en", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Ekologia ja evoluutiobiologia", "language": "fi", "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.copyright", "value": "\u00a9 The Author(s)", "language": null, "element": "rights", "qualifier": "copyright", "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": null, "element": "subject", "qualifier": "oppiainekoodi", "schema": "dc"}, {"key": "dc.subject.yso", "value": "puolustusmekanismit (biologia)", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "varoitusv\u00e4ri", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "saalistus", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "t\u00e4pl\u00e4siilik\u00e4s", "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/en/workspaces/facilities/facilities#autotoc-item-autotoc-2).", "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/fi/tyoskentelytilat/laitteet-ja-tilat#autotoc-item-autotoc-2.", "language": "fi", "element": "rights", "qualifier": "accessrights", "schema": "dc"}]
|