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dc.contributor.advisorAndrews, Richard V.en_US
dc.contributor.authorChristiansen, Edwin C.en_US
dc.date.accessioned2017-09-12T16:05:29Z
dc.date.available2017-09-12T16:05:29Z
dc.date.issued1973
dc.identifier.urihttp://hdl.handle.net/10504/114254
dc.description.abstractSeton (1909) stimulated wide interest in the fluctuation of population density of Arctic mammals. However, his account of suicidal migrations of lemmings was based on legend, as were the accounts of periodic erruptions of house mice, rats and voles. Since then, many investigations have presented conflicting ideas on the causes of density cycles in small mammalian populations. | Cyclic variations of numbers in lemmings, voles and mice populations involve several common factors. These factors include ecological (Thompson, 1955; Pitelka, 1962) ethological, (Krebs, 1964a; Christian and Davis, 1964; Sadlier, 1965; Chitty, 1957), physiological (Christian, 1963b; Bronson and Eleftheriou, 1963a; Andrews, 1968a), reproductive (Kalela, 1962 ; Mullen, 1965; Chitty and Phipps, 1966), and mortality (Krebs, 1964; Sadlier, 1965; Chitty, 1960; Chitty and Phipps, 1966; Lidicker, 1965) studies. In general, the influence of these factors may be segregated into two classes: extrinsic factors and intrinsic factors.en_US
dc.language.isoen_USen_US
dc.publisherCreighton Universityen_US
dc.rightsA non-exclusive distribution right is granted to Creighton University and to ProQuest following the publishing model selected above.en_US
dc.titleThe Effects of Social Stress on Reproduction in a Wild Deermouse Population (Peromyscus Leucopus)en_US
dc.typeThesis
dc.publisher.locationOmaha, Nebraskaen_US
dc.description.noteProQuest Traditional Publishing Optionen_US
dc.contributor.cuauthorChristiansen, Edwin C.en_US
dc.degree.levelMS (Master of Science)en_US
dc.degree.disciplineBiology (graduate program)en_US
dc.degree.nameM.S. in Biologyen_US
dc.degree.grantorGraduate Schoolen_US


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