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Auklets generally foraged < 30 km from each colony in all years. Core foraging areas (50% fixed kernel) from Prince Island in 1999-2001 were north to northeast of the colony over the insular shelf near the shelfbreak. Core foraging areas from Scorpion Rock in 2000-2001 occurred in two focal areas: the Anacapa Passage, a narrow interisland passage adjacent to the colony, and over the southeastern Santa Barbara Channel. During 2000, intercolony foraging areas overlapped by 10%; however, auklets from each colony used the overlapping area at different times. Equivalent-sample-size resampling indicated Prince Island foraging area (1216 ?? 654 km2) was twice that of Scorpion Rock (598 ?? 204 km2). At Prince Island, mean individual distances, home-range areas, and colony-based activity areas were greater for females than males, especially during 2001. At Prince Island, core foraging areas of females and males, pooled separately, overlapped by 63% in 1999 and 2000, and by 35% in 2001. Postbreeding auklets from both colonies dispersed northward and moved to active upwelling centers off central California, coincident with decreased upwelling and sea-surface warming throughout the Santa Barbara Channel.", "description": "20 p.", "publisher": { "@type": "Organization", "name": "American Ornithological Society" }, "author": [ { "@type": "Person", "name": "Carter, Harry R.", "givenName": "Harry R.", "familyName": "Carter", "affiliation": [ { "@type": "Organization", "name": "Northern Prairie Wildlife Research Center", "url": "https://www.usgs.gov/centers/northern-prairie-wildlife-research-center" } ] }, { "@type": "Person", "name": "Adams, Josh josh_adams@usgs.gov", "givenName": "Josh", "familyName": "Adams", "email": "josh_adams@usgs.gov", "identifier": { "@type": "PropertyValue", "propertyID": "ORCID", "value": "0000-0003-3056-925X", "url": "https://orcid.org/0000-0003-3056-925X" }, "affiliation": [ { "@type": "Organization", "name": "Western Ecological Research 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