Factors affecting the patterns of behavior of individual Glaucous-winged Gulls (Larus glaucescens) on Protection Island, Jefferson County, Washington were examined. Males were found to be present on territory often than females. Proportions of behavior varied by time of season. Gulls tended to be more alert (used upright and intermediate-upright displays) during the \"chick\" stage than earlier in the season. Attendance rates were very similar between individuals of the same gender, and a significant correlation was found between the attendance rates of members of a pair. However, sequences of territorial behavior varied significantly between genders.
","abstract_html":"<p>Factors affecting the patterns of behavior of individual Glaucous-winged Gulls <em>(Larus glaucescens)</em> on Protection Island, Jefferson County, Washington were examined. Males were found to be present on territory often than females. Proportions of behavior varied by time of season. Gulls tended to be more alert (used upright and intermediate-upright displays) during the "chick" stage than earlier in the season. Attendance rates were very similar between individuals of the same gender, and a significant correlation was found between the attendance rates of members of a pair. However, sequences of territorial behavior varied significantly between genders.</p>","abstract_has_math":false,"creators":["Murdoch, Michael"],"institution":null,"degree_name":"Master of Science (MS)","degree_level":"Thesis","degree_discipline":"Biology","degree_department":null,"school":null,"contributors":["Joseph G. Galusha","Leonard R. Brand","Ron Carter"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":1993,"date_issued":"1993-06-01T07:00:00Z","date_published":"1993-06-01T07:00:00Z","updated_at":"2026-07-24T02:53:08Z","subjects":["Biology","Glaucous-winged gulls -- Washington -- Behavior; Protection Island National Wildlife Refuge (Wash.)"],"languages":["English"],"rights":["This title appears here courtesy of the author, who has granted Loma Linda University a limited, non-exclusive right to make this publication available to the public. The author retains all other copyrights."],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://scholarsrepository.llu.edu/etd/695","outbound_label":"Repository record","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Joseph G. Galusha","Leonard R. Brand","Ron Carter"]},{"key":"dc:creator","label":"Author","values":["Murdoch, Michael"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"thesis:degree_discipline","label":"Discipline","values":["Biology"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Master of Science (MS)"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Biology","Glaucous-winged gulls -- Washington -- Behavior; Protection Island National Wildlife Refuge (Wash.)"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["English"]},{"key":"dc:rights","label":"Dc Rights","values":["This title appears here courtesy of the author, who has granted Loma Linda University a limited, non-exclusive right to make this publication available to the public. The author retains all other copyrights."]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://scholarsrepository.llu.edu/etd/695"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["Factors affecting the patterns of behavior of individual Glaucous-winged Gulls (Larus glaucescens) on Protection Island, Jefferson County, Washington were examined. Males were found to be present on territory often than females. Proportions of behavior varied by time of season. Gulls tended to be more alert (used upright and intermediate-upright displays) during the \"chick\" stage than earlier in the season. Attendance rates were very similar between individuals of the same gender, and a significant correlation was found between the attendance rates of members of a pair. However, sequences of territorial behavior varied significantly between genders.
"]},{"key":"dc:title","label":"Title","values":["Factors Affecting Behavioral Variation of Individual Glaucous-Winged Gulls (Larus Glaucescens) While on Territory"]}]}],"canonical_facts":{"dc:contributor":["Joseph G. Galusha","Leonard R. Brand","Ron Carter"],"dc:creator":["Murdoch, Michael"],"dc:description.abstract":["Factors affecting the patterns of behavior of individual Glaucous-winged Gulls (Larus glaucescens) on Protection Island, Jefferson County, Washington were examined. Males were found to be present on territory often than females. Proportions of behavior varied by time of season. Gulls tended to be more alert (used upright and intermediate-upright displays) during the \"chick\" stage than earlier in the season. Attendance rates were very similar between individuals of the same gender, and a significant correlation was found between the attendance rates of members of a pair. However, sequences of territorial behavior varied significantly between genders.
"],"dc:identifier":["https://scholarsrepository.llu.edu/etd/695"],"dc:language":["English"],"dc:rights":["This title appears here courtesy of the author, who has granted Loma Linda University a limited, non-exclusive right to make this publication available to the public. The author retains all other copyrights."],"dc:subject":["Biology","Glaucous-winged gulls -- Washington -- Behavior; Protection Island National Wildlife Refuge (Wash.)"],"dc:title":["Factors Affecting Behavioral Variation of Individual Glaucous-Winged Gulls (Larus Glaucescens) While on Territory"],"thesis:degree_discipline":["Biology"],"thesis:degree_level":["Thesis"],"thesis:degree_name":["Master of Science (MS)"]},"updated_at":"2026-07-24T02:53:08Z"}