{"id":{"repo_id":"uwo","oai_identifier":"oai:uwo.scholaris.ca:20.500.14721/36914"},"canonical_url":"https://search.dev.ndltd.org/etd/uwo/oai:uwo.scholaris.ca:20.500.14721/36914","repository":{"repo_id":"uwo","name":"Western University","base_url":"https://uwo.scholaris.ca/server/oai/request"},"display":{"title":"Environmental Factors Influencing Spring Migration Chronology of Lesser Scaup (Aythya affinis)","abstract":"Weather likely affects the timing and rate of migration by waterfowl to their breeding grounds. I hypothesized that timing of migration by lesser scaup during spring is affected by annual variation in temperature, precipitation and ice cover. I used satellite telemetry data, waterfowl survey data and corresponding weather data to evaluate competing models that explained variation in timing and rate of migration by lesser scaup. Timing of spring migration occurred earlier and faster when lesser scaup encountered warmer temperatures and greater precipitation, both of which are known to influence thermoregulation and habitat availability for waterfowl. Migration chronology of lesser scaup and mallards differed suggesting surveys designed for mallard migration may be biased for scaup. My thesis provides insight into how environmental factors and annual variation in weather influences scaup migration chronology, and could be used to potentially improve survey techniques and breeding population estimates for lesser scaup.","abstract_html":"Weather likely affects the timing and rate of migration by waterfowl to their breeding grounds. I hypothesized that timing of migration by lesser scaup during spring is affected by annual variation in temperature, precipitation and ice cover. I used satellite telemetry data, waterfowl survey data and corresponding weather data to evaluate competing models that explained variation in timing and rate of migration by lesser scaup. Timing of spring migration occurred earlier and faster when lesser scaup encountered warmer temperatures and greater precipitation, both of which are known to influence thermoregulation and habitat availability for waterfowl. Migration chronology of lesser scaup and mallards differed suggesting surveys designed for mallard migration may be biased for scaup. My thesis provides insight into how environmental factors and annual variation in weather influences scaup migration chronology, and could be used to potentially improve survey techniques and breeding population estimates for lesser scaup.","abstract_has_math":false,"creators":["Finger, Taylor A"],"institution":"The University of Western Ontario","degree_name":"M Sc","degree_level":null,"degree_discipline":"Biology","degree_department":null,"school":null,"contributors":[],"advisors":["Scott Petrie","Irena Creed"],"committee_chairs":[],"committee_members":[],"year":2014,"date_issued":"2014-01-15","date_published":"2014-01-15","updated_at":"2026-07-27T21:56:07Z","subjects":["lesser scaup","mallards","migration chronology","weather","satellite transmitter"],"languages":["en_ca"],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://hdl.handle.net/20.500.14721/36914","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Scott Petrie","Irena Creed"]},{"key":"dc:creator","label":"Author","values":["Finger, Taylor A"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2025-07-10T21:27:31Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2025-07-10T21:27:31Z"]},{"key":"dc:date.issued","label":"Date","values":["2014-01-15"]},{"key":"dc:publisher","label":"Institution","values":["The University of Western Ontario"]},{"key":"dc:type","label":"Dc Type","values":["thesis"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Biology"]},{"key":"thesis:degree_name","label":"Degree Name","values":["M Sc"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["lesser scaup","mallards","migration chronology","weather","satellite transmitter"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language.iso","label":"Language (ISO)","values":["en_ca"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["https://hdl.handle.net/20.500.14721/36914"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["The thesis cover page in the PDF document includes references to Western University’s previous institutional repository platform, known as Scholarship@Western, and links to that platform (beginning with ir.lib.uwo.ca). In citing or referring to this thesis, use the DOI or handle from this page instead. Sample citation: Author name, \"Thesis title.\" (Year). Western University Open Repository. https://doi.org/10.71858/123456."]},{"key":"dc:description.abstract","label":"Abstract","values":["Weather likely affects the timing and rate of migration by waterfowl to their breeding grounds. I hypothesized that timing of migration by lesser scaup during spring is affected by annual variation in temperature, precipitation and ice cover. I used satellite telemetry data, waterfowl survey data and corresponding weather data to evaluate competing models that explained variation in timing and rate of migration by lesser scaup. Timing of spring migration occurred earlier and faster when lesser scaup encountered warmer temperatures and greater precipitation, both of which are known to influence thermoregulation and habitat availability for waterfowl. Migration chronology of lesser scaup and mallards differed suggesting surveys designed for mallard migration may be biased for scaup. My thesis provides insight into how environmental factors and annual variation in weather influences scaup migration chronology, and could be used to potentially improve survey techniques and breeding population estimates for lesser scaup."]},{"key":"dc:title","label":"Title","values":["Environmental Factors Influencing Spring Migration Chronology of Lesser Scaup (Aythya affinis)"]}]}],"canonical_facts":{"dc:contributor.advisor":["Scott Petrie","Irena Creed"],"dc:creator":["Finger, Taylor A"],"dc:date.accessioned":["2025-07-10T21:27:31Z"],"dc:date.available":["2025-07-10T21:27:31Z"],"dc:date.issued":["2014-01-15"],"dc:description":["The thesis cover page in the PDF document includes references to Western University’s previous institutional repository platform, known as Scholarship@Western, and links to that platform (beginning with ir.lib.uwo.ca). In citing or referring to this thesis, use the DOI or handle from this page instead. Sample citation: Author name, \"Thesis title.\" (Year). Western University Open Repository. https://doi.org/10.71858/123456."],"dc:description.abstract":["Weather likely affects the timing and rate of migration by waterfowl to their breeding grounds. I hypothesized that timing of migration by lesser scaup during spring is affected by annual variation in temperature, precipitation and ice cover. I used satellite telemetry data, waterfowl survey data and corresponding weather data to evaluate competing models that explained variation in timing and rate of migration by lesser scaup. Timing of spring migration occurred earlier and faster when lesser scaup encountered warmer temperatures and greater precipitation, both of which are known to influence thermoregulation and habitat availability for waterfowl. Migration chronology of lesser scaup and mallards differed suggesting surveys designed for mallard migration may be biased for scaup. My thesis provides insight into how environmental factors and annual variation in weather influences scaup migration chronology, and could be used to potentially improve survey techniques and breeding population estimates for lesser scaup."],"dc:identifier.uri":["https://hdl.handle.net/20.500.14721/36914"],"dc:language.iso":["en_ca"],"dc:publisher":["The University of Western Ontario"],"dc:subject":["lesser scaup","mallards","migration chronology","weather","satellite transmitter"],"dc:title":["Environmental Factors Influencing Spring Migration Chronology of Lesser Scaup (Aythya affinis)"],"dc:type":["thesis"],"thesis:degree_discipline":["Biology"],"thesis:degree_name":["M Sc"]},"updated_at":"2026-07-27T21:56:07Z"}