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[{"key": "dc.contributor.author", "value": "Martiskainen, Henna", "language": null, "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2011-06-28T11:38:04Z", "language": null, "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2011-06-28T11:38:04Z", "language": null, "element": "date", "qualifier": "available", "schema": "dc"}, {"key": "dc.date.issued", "value": "2011", "language": null, "element": "date", "qualifier": "issued", "schema": "dc"}, {"key": "dc.identifier.other", "value": "oai:jykdok.linneanet.fi:1163743", "language": null, "element": "identifier", "qualifier": "other", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/27236", "language": null, "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Natural selection theory predicts low variance in traits closely related to reproductive success,\nsince the most fit trait value should replace all the others. However, a considerable amount of\nvariation is found in life-history traits throughout the animal kingdom. The most widely\naccepted mechanism maintaining this variation is a balance between mutation and selection;\nhowever, observed variance is higher than predicted by mutation \u2013 selection balance alone and\nthus additional processes must be involved. One possible mechanism which has only recently\nstarted to gain attention is intralocus sexual conflict, where the optima of fitness related traits\nare sex dependent. This leads to sexually antagonistic variation in life-history traits, especially\nthose related to reproduction where the sexes diverge most. Intralocus conflict alone might\nonly be able to slow down the depletion of variation, but become really powerful when\ncombined with negative frequency-dependent selection, which favors the rare morphs in the\npopulation. In my master \u201fs thesis I investigate the interaction between these two selective\nforces, sexually antagonistic selection and frequency-dependent selection, and their potential\nto maintain variation in life- history traits. Bank voles (Myodes glareolus) were artificially\nselected in the laboratory according to sexually antagonistic selection to create two lines with\nopposing reproductive success (high-dominance males with low- fecundity sisters and vice\nversa). I found a significant difference between the lines in male dominance in behavioral\nlaboratory trials and plasma testosterone levels. The frequency of these two lines was then\nmanipulated in semi- natural field enclosures to be either rare or common in the population.\nReproductive success was measured by observing female litter size and determining male\nsiring success with genetic paternity analysis. Reproductive success of males in the field was\nnegatively frequency-dependent regardless of their selected dominance status, whereas in\nfemales only the selected fecundity status explained their reproductive success. The results of\nmy thesis suggest that the negative frequency-dependence experienced by male bank voles\ncould maintain sexually antagonistic variation in this species by a cyclic fluctuation in the\nfrequency of the different (male) tactics.", "language": null, "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted using Plone Publishing form by Henna Martiskainen (hemamart) on 2011-06-28 11:38:03.025306. Form: Pro gradu -lomake (1 tekij\u00e4) (https://kirjasto.jyu.fi/julkaisut/julkaisulomakkeet/pro-gradu-lomake-1-tekijae). JyX data:", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted by jyx lomake-julkaisija (jyx-julkaisija@noreply.fi) on 2011-06-28T11:38:04Z\nNo. of bitstreams: 2\nURN:NBN:fi:jyu-2011062811066.pdf: 524375 bytes, checksum: e145481f2cbf8ded4a52b69a8421e0b2 (MD5)\nlicense.html: 5089 bytes, checksum: 2715c793028b10489aa9a6e3e9a9549d (MD5)", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2011-06-28T11:38:04Z (GMT). No. of bitstreams: 2\nURN:NBN:fi:jyu-2011062811066.pdf: 524375 bytes, checksum: e145481f2cbf8ded4a52b69a8421e0b2 (MD5)\nlicense.html: 5089 bytes, checksum: 2715c793028b10489aa9a6e3e9a9549d (MD5)\n Previous issue date: 2011", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "23 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": "eng", "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": "lokuksensis\u00e4inen seksuaalikonflikti", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "mets\u00e4myyr\u00e4 (Myodes glareolus)", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "mikrosatelliitit", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "muuntelun s\u00e4ilyminen", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "seksuaalisesti antagonistinen valinta", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "tasapainottava valinta", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.title", "value": "The maintenance of sexually antagonistic variation in reproductive success by negative frequency-dependence in the bank vole (Myodes glareolus)", "language": null, "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-2011062811066", "language": null, "element": "identifier", "qualifier": "urn", "schema": "dc"}, {"key": "dc.type.dcmitype", "value": "Text", "language": "en", "element": "type", "qualifier": "dcmitype", "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": "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": "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": "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": "openAccess", "language": "fi", "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": "mets\u00e4myyr\u00e4", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "mikrosatelliitit", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "mikrosatelliitit", "language": null, "element": "subject", "qualifier": "yso", "schema": 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