WEKO3
アイテム
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Evaluation of bill furrows as age indicator in the Tufted Puffin Lunda cirrhata
https://nipr.repo.nii.ac.jp/records/2044
https://nipr.repo.nii.ac.jp/records/204430e3a888-27d4-4de9-8471-c28f20b96733
名前 / ファイル | ライセンス | アクション |
---|---|---|
KJ00000012597 (1.1 MB)
|
Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||
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公開日 | 1986-12-01 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Evaluation of bill furrows as age indicator in the Tufted Puffin Lunda cirrhata | |||||
言語 | ||||||
言語 | eng | |||||
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 | |||||
ページ属性 | ||||||
内容記述タイプ | Other | |||||
内容記述 | P(論文) | |||||
著者名(英) |
Tanaka,Hiroyuki
× Tanaka,Hiroyuki× Ogi,Haruo |
|||||
著者所属(英) | ||||||
en | ||||||
Research Institute of North Pasific Fisheries, Faculty of Fisheries, Hokkaido University/Research Institute of North Pasific Fisheries, Faculty of Fisheries, Hokkaido University | ||||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Tufted Puffins (Lunda cirrhata) were divided into six stages (F(Y), F(0)-F(4)) according to the number of bill furrows formed in the reddish outer part of the upper bill. To clarify the morphological difference between sexes and among stages, eleven morphological measurements of the bills were made. Males were significantly larger than females in most of the measurements. For example, if Tufted Puffins had a gape length longer than 44.0mm there was a 72.5 percent chance that these birds would be male. The variations of these measurements among the six stages of bill furrows were recognized to have three patterns; two measurements along the gape did not vary despite the stages, five measurements, two of which were connected with lower bill, found to be changed between F(Y) and F(0), and four measurements in terms of upper bill were found to be altered between F(Y) and F(0), and F(2) and F(3). The number of bill furrows of the Tufted Puffin corresponded to six age groups on the analogy of the relationship reported between the number of bill furrows and the age in the Atlantic Puffin (Fratercula arctica) (A. PETERSEN : Ornis Scand., 7,185,1976; M. P. HARRIS : Br. Birds, 74,246,1981). The bill furrows of F(Y), F(0), F(1), F(2), and F(3) and F(4) would correspond to the age of 0 to 1,1 to 2,2 to 3,3 to 4,and 5 or older, respectively. | |||||
雑誌書誌ID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA00733561 | |||||
書誌情報 |
Memoirs of National Institute of Polar Research. Special issue 巻 44, p. 160-166, 発行日 1986-12 |