Plasma testosterone levels of incubating black-tailed gulls

Kentaro Kazama*, Kentaro Q. Sakamoto, Yutaka Watanuki

*この研究の対応する著者

研究成果: Article査読

3 被引用数 (Scopus)

抄録

In some avian species, male plasma testosterone levels are maximum during the courtship or copulation periods, but decline abruptly once incubation starts. However, testosterone levels of male Black-tailed Gulls Larus crassirostris during the course of breeding remain unknown. In 2006, blood samples of 23 incubating males were collected at Rishiri Island, Hokkaido, Japan and testosterone was measured by enzyme immunoassay kit. Plasma testosterone level (mean±S.E.: 0.737±0.282 ng/ml) was assumed to decline with elapsed days from the onset of incubation, as shown in other species.

本文言語English
ページ(範囲)112-116
ページ数5
ジャーナルJournal of the Yamashina Institute for Ornithology
39
2
DOI
出版ステータスPublished - 2007
外部発表はい

ASJC Scopus subject areas

  • 動物科学および動物学

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