ダウンロード数: 289
このアイテムのファイル:
ファイル | 記述 | サイズ | フォーマット | |
---|---|---|---|---|
zsj.28.175.pdf | 160.69 kB | Adobe PDF | 見る/開く |
タイトル: | A Skeletochronological Study of Breeding Females in a Population of Japanese Clouded Salamanders (Hynobius nebulosus) |
著者: | Matsuki, Takashi Matsui, Masafumi |
著者名の別形: | 松井, 正文 |
キーワード: | Life history traits skeletochronology age structure age at first reproduction longevity Hynobius nebulosus |
発行日: | Mar-2011 |
出版者: | Zoological Society of Japan |
誌名: | Zoological Science |
巻: | 28 |
号: | 3 |
開始ページ: | 175 |
終了ページ: | 179 |
抄録: | The age structure of breeding females of Hynobius nebulosus has not been studied sufficiently. We estimated the ages of 76 individuals from a population in Kyoto by using skeletochronology. The mean age and snout-vent length (SVL) of this population were 4. 6 years and 55. 7 mm, respectively. It was estimated that the youngest females breed two years post hatching at a mean SVL of 46. 5 mm, but a larger number of individuals begins breeding at three years and a mean SVL of 52. 2 mm. Because most males also start to breed at three years, there seems to be no gender difference in the timing of sexual maturation. The age of the oldest female was estimated to be 11. 8 years. It is possible that the life history of H. nebulosus is characterized by early maturation and arrested growth, and short longevity. |
著作権等: | © 2011 Zoological Society of Japan |
URI: | http://hdl.handle.net/2433/216895 |
DOI(出版社版): | 10.2108/zsj.28.175 |
PubMed ID: | 21385057 |
出現コレクション: | 松井 正文 |
このリポジトリに保管されているアイテムはすべて著作権により保護されています。