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Are stomach temperature recorders a useful tool for determining feeding activity?
https://doi.org/10.15094/00006260
https://doi.org/10.15094/00006260f9f6cb67-66b4-4a6c-a13c-4b45d6a2fc9e
名前 / ファイル | ライセンス | アクション |
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KJ00004531446 (362.5 kB)
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Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||
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公開日 | 2006-12-01 | |||||
タイトル | ||||||
タイトル | Are stomach temperature recorders a useful tool for determining feeding activity? | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | stomach temperature recorders, feeding activity, seabirds, king penguins, Aptenodytes patagonicus | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | departmental bulletin paper | |||||
ID登録 | ||||||
ID登録 | 10.15094/00006260 | |||||
ID登録タイプ | JaLC | |||||
ページ属性 | ||||||
内容記述タイプ | Other | |||||
内容記述 | P(論文) | |||||
論文名よみ | ||||||
その他のタイトル | Are stomach temperature recorders a useful tool for determining feeding activity? | |||||
著者名(英) |
Ropert-Coudert,Yan
× Ropert-Coudert,Yan× Kato,Akiko |
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著者所属(英) | ||||||
en | ||||||
National Institute of Polar Research/National Institute of Polar Research | ||||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Despite a number of limitations, stomach temperature recorders are still commonly used to determine feeding activity in free-ranging marine predators. In this regard, it is important to improve the detection rate of these systems by, for instance, increasing the probability that a cold prey touches the sensors. In the present study, we compared the detection rates and mass estimations of water and fish prey ingested by captive king penguins using a two-point temperature recorder (STL) and a single, but large, point recorder (SICUP). Prey items were of different masses (5-45 g) and delivered at different frequencies (high vs. low). Ingestions were recorded as precipitous drop followed by an exponential rise (PDER). Overall, 57.9, 56.0 and 70.0% of the ingestions were detected by the SICUP and the upper and lower sensors of the STL, respectively. Our study confirmed that employing two sensors improves the detection of prey ingestion, but the detection of very small prey items remains insufficient and prey items swallowed at short intervals are detected as cumulative ingestion events. Nonetheless, the total mass of food ingested can be estimated with more than 70% confidence. | |||||
雑誌書誌ID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA11327019 | |||||
書誌情報 |
Polar bioscience 巻 20, p. 63-72, 発行日 2006-12 |
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出版者 | ||||||
出版者 | National Institute of Polar Research |