Item talk:Q310954
From geokb
{
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"@context": "https://schema.org",
"@type": "Article",
"additionalType": "Journal Article",
"name": "Predator disturbance contributed to Common Murre Uria aalge breeding failures in Cook Inlet, Alaska following the 2014\u20132016 Pacific marine heatwave",
"identifier": [
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"value": "70253160",
"url": "https://pubs.usgs.gov/publication/70253160"
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"journal": {
"@type": "Periodical",
"name": "Marine Onithology",
"volumeNumber": "52",
"issueNumber": null
},
"inLanguage": "en",
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"@type": "CreativeWorkSeries",
"name": "Marine Onithology"
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"datePublished": "2024",
"dateModified": "2024-04-23",
"abstract": "The 2014-2016 Pacific marine heatwave caused unprecedented die-offs and multi-year reproductive failures for Common Murres\u00a0Uria aalge\u00a0along the west coast of North America. Lingering impacts, such as declines in colony attendance and productivity, have persisted at some colonies following the heatwave and are attributed largely to changes in prey availability and quality. Here, we present evidence of an additional, top-down mechanism contributing to Common Murre breeding failures on Gull Island (Alaska): disturbance of nesting birds by aerial predators and associated egg depredation. We collected time-lapse images over five murre breeding seasons (2016-2020) on Gull Island to document the frequency, duration, and intensity of disturbances caused by aerial predators, as well as to quantify disturbance-associated egg depredation. To identify seasonal and inter-annual variability of disturbances, we calculated a daily disturbance index and compared years using generalized additive models. In all years, Bald Eagles\u00a0Haliaeetus leucocephalus\u00a0were the primary cause of disturbance, which led to periods of prolonged colony abandonment by murres and facilitated high levels of murre egg depredation by Glaucous-winged Gulls\u00a0Larus glaucescens\u00a0and Herring Gulls\u00a0L. argentatus. We found that the seasonality of disturbance was an important factor in determining egg depredation rates. In years when disturbance levels were high and persisted later in the season, the colony experienced complete breeding failures due to disturbance-associated egg depredation. Our study revealed that the response of nesting murres to a strong environmental perturbation, such as the Pacific marine heatwave, can be complex and involve multiple stressors from both bottom-up and top-down factors.",
"description": "11 p.",
"publisher": {
"@type": "Organization",
"name": "Marine Ornithology"
},
"author": [
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"@type": "Person",
"name": "Marsteller, Caitlin Elizabeth",
"givenName": "Caitlin Elizabeth",
"familyName": "Marsteller",
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"value": "0000-0002-2430-0708",
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"affiliation": [
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"@type": "Organization",
"name": "Alaska Science Center Biology MFEB",
"url": "https://www.usgs.gov/centers/alaska-science-center"
}
]
},
{
"@type": "Person",
"name": "Arimitsu, Mayumi L. marimitsu@usgs.gov",
"givenName": "Mayumi L.",
"familyName": "Arimitsu",
"email": "marimitsu@usgs.gov",
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"name": "Alaska Science Center Biology MFEB",
"url": "https://www.usgs.gov/centers/alaska-science-center"
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{
"@type": "Person",
"name": "Schoen, Sarah K. sschoen@usgs.gov",
"givenName": "Sarah K.",
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"value": "0000-0002-5685-5185",
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"name": "Alaska Science Center Biology MFEB",
"url": "https://www.usgs.gov/centers/alaska-science-center"
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"@type": "Person",
"name": "Stark, Samuel B",
"givenName": "Samuel B",
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"name": "Alaska Science Center Biology MFEB",
"url": "https://www.usgs.gov/centers/alaska-science-center"
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"name": "Piatt, John F.",
"givenName": "John F.",
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"value": "0000-0002-4417-5748",
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"name": "Alaska Science Center Biology MFEB",
"url": "https://www.usgs.gov/centers/alaska-science-center"
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"funder": [
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"@type": "Organization",
"name": "Alaska Science Center Ecosystems",
"url": "https://www.usgs.gov/centers/alaska-science-center"
}
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"additionalType": "country",
"name": "United States",
"url": "https://geonames.org/4074035"
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