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dc.contributor.authorCornelius, Emily Ann
dc.date.accessioned2014-03-04T21:05:38Z
dc.date.available2014-03-04T21:05:38Z
dc.date.issued2013-08
dc.identifier.othercornelius_emily_a_201308_ms
dc.identifier.urihttp://purl.galileo.usg.edu/uga_etd/cornelius_emily_a_201308_ms
dc.identifier.urihttp://hdl.handle.net/10724/29010
dc.description.abstractMigrating animals likely face trade-offs in allocating resources to different physiological functions, with one potential trade-off between fat accumulation and immune defense. Here, we sampled three migratory songbird species during their fall migration through coastal Georgia and quantified body condition, fat loads and infection with blood parasites. We predicted that parasitized birds would show decreased fat scores, poorer body condition and increased stress levels. We also asked whether birds with greater immune defense would have higher or lower body condition measures and fat levels and examined the association between infection status and immune defense. Parasitized birds had elevated leukocyte counts but showed no evidence of greater stress, poorer body condition or lower fat levels. Although we found no relationship between leukocytes and body condition or fat scores, results from this study suggest that investment in immune defense might be an important cost of parasite infection for animals undertaking long-distance migrations.
dc.languageeng
dc.publisheruga
dc.rightspublic
dc.subjectMigration
dc.subjectblood parasite
dc.subjectstress
dc.subjectfat
dc.subjectbody condition
dc.subjectstopover
dc.subjectlipids
dc.subjectHaemoproteus
dc.subjectPlasmodium
dc.subjectwarbler
dc.titleInterplay between energy reserves, parasitism, stress and immunity in migrating songbirds
dc.typeThesis
dc.description.degreeMS
dc.description.departmentInstitute of Ecology
dc.description.majorEcology
dc.description.advisorSonia Altizer
dc.description.committeeSonia Altizer
dc.description.committeeVanessa Ezenwa
dc.description.committeeAndrew Davis


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