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dc.contributor.authorStudholme, Katharine Ryder
dc.date.accessioned2018-04-30T13:41:48Z
dc.date.available2018-04-30T13:41:48Z
dc.identifier.urihttp://hdl.handle.net/10222/73902
dc.description.abstractFactors influencing animal fitness during the nonbreeding period are critically important but remain largely unknown for many species. Here, I employed tracking and physiological sampling to gain insight into nonbreeding distributions, migratory behavior, and potential carryover effects in a North Pacific seabird. From 2014-17, nonbreeding Cassin’s auklets from British Columbian colonies occupied nearshore waters from Alaska to Baja California, utilizing regions north of the colony in summer/fall, south of the colony in fall/winter, and returning to the colony region >1 month prior to laying in early spring. Four general migratory tactics were expressed – North, South, North-South, and Local migration – with individuals exhibiting substantial variability in finer-scale phenology and choice of residency areas. Diverse nonbreeding experiences were expected to drive variability in the strength of carryover effects; however, indicators of pre-breeding physiologic state and diet did not predict reproductive investment (egg size) in an additional year, potentially due to oceanographic context.en_US
dc.language.isoenen_US
dc.subjectmigrationen_US
dc.subjectfeather corticosteroneen_US
dc.subjectstable isotopeen_US
dc.subjectegg sizeen_US
dc.subjectgeolocatoren_US
dc.subjectenvironmental contexten_US
dc.subjecthabitat selectionen_US
dc.subjectAlciden_US
dc.titleNonbreeding distributions and potential carryover effects in a sentinel north pacific seabird, the Cassin's aukleten_US
dc.typeThesisen_US
dc.date.defence2018-04-18
dc.contributor.departmentDepartment of Biologyen_US
dc.contributor.degreeMaster of Scienceen_US
dc.contributor.external-examinern/aen_US
dc.contributor.graduate-coordinatorDr. Paul Bentzenen_US
dc.contributor.thesis-readerDr. J Mark Hipfneren_US
dc.contributor.thesis-readerDr. Joanna Mills Flemmingen_US
dc.contributor.thesis-supervisorDr. Glenn T Crossinen_US
dc.contributor.thesis-supervisorDr. Sara J Iversonen_US
dc.contributor.ethics-approvalReceiveden_US
dc.contributor.manuscriptsYesen_US
dc.contributor.copyright-releaseNot Applicableen_US
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