Black Guillemots as indicators of change in the near-shore Arctic marine ecosystem

dc.contributor.authorHarter, B. Britten
dc.contributor.examiningcommitteeSealy, Spencer (Biological Science) Walker, David (Geography)en
dc.contributor.supervisorDavoren, Gail (Biological Science)en
dc.date.accessioned2007-09-14T17:19:27Z
dc.date.available2007-09-14T17:19:27Z
dc.date.issued2007-09-14T17:19:27Z
dc.degree.disciplineZoologyen_US
dc.degree.levelMaster of Science (M.Sc.)en_US
dc.description.abstractThis study attempted to explain an apparent inverse relationship between pack ice proximity and breeding success of Black Guillemots (Cepphus grylle) on Cooper Island, a barrier island in the western Beaufort Sea near Barrow, AK. I elucidated the first linear relationship between energy density and body size for the elusive Arctic Cod (Boreogadus saida). I discovered and ground-truthed the existence of previously unknown guillemot foraging habitat on small 50 m2 ice floes distant from the pack ice. I developed new daily metrics for quantifying the provisioning to linear (8 d – 18 d) and Post-Linear (19 d – fledge) chicks. I found daily consensus between Linear and Post-Linear chicks about the level of provisioning at the colony. Finally, I explained those daily changes with significant correlations with wind speed and direction.en
dc.description.noteOctober 2007en
dc.format.extent793680 bytes
dc.format.mimetypeapplication/pdf
dc.identifier.urihttp://hdl.handle.net/1993/2826
dc.language.isoengen_US
dc.rightsopen accessen_US
dc.subjectArctic Coden
dc.subjectBlack Guillemoten
dc.subjectseabirden
dc.subjectwind speeden
dc.subjectwind directionen
dc.subjectchick massen
dc.subjectforaging habitaten
dc.subjectremote sensing iceen
dc.subjectMODISen
dc.subjectprovisioningen
dc.subjectcepphusen
dc.subjectBeaufort Seaen
dc.subjectArctic Oceanen
dc.subjectBarrowen
dc.subjectambient temperatureen
dc.subjectchick growthen
dc.subjectprey availabilityen
dc.subjectAlcidaeen
dc.titleBlack Guillemots as indicators of change in the near-shore Arctic marine ecosystemen
dc.typemaster thesisen_US
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