說明
At Macquarie Island 1000 seals were weighed per annum between 1993-2003 at birth and individually marked with two plastic flipper tags in the inter-digital webbing of their hind flippers. These tagged seals were weighed again at weaning, when length, girth, fat depth, and flipper measurements were made. Three weeks after weaning 2000 seals were permanently and individually marked by hot-iron branding. Recaptures and re-weighing of these known aged individuals were used to calculate growth and age-specific survival of the seals. Similar data were collected from elephant seals between 1950 and 1965 when seals were individually marked by hot-iron branding. Mark-recapture data from these cohorts were used to assess the demography of the declining population. Length and mass data were also collected for these cohorts and were used, for the first time, to assess the growth of individual seals without killing them.
資料紀錄
此資源出現紀錄的資料已發佈為達爾文核心集檔案（DwC-A），其以一或多組資料表構成分享生物多樣性資料的標準格式。
此 IPT 存放資料以提供資料儲存庫服務。資料與資源的詮釋資料可由「下載」單元下載。「版本」表格列出此資源的其它公開版本，以便利追蹤其隨時間的變更。
版本
以下的表格只顯示可公開存取資源的已發布版本。
如何引用
研究者應依照以下指示引用此資源。:
Burton, H. (1999, updated 2006) Macquarie Island Elephant Seal Populations 1950 to 1965, Australian Antarctic Data Centre - CAASM Metadata (http://data.aad.gov.au/aadc/metadata/)
GBIF 註冊
此資源尚未向GBIF註冊
關鍵字
Occurrence; Observation
外部資料
此資源尚有其他格式可用
| Online dataset | http://iobis.org/explore/#/dataset/145 UTF-8 HTML |
|---|---|
| Metadata | http://www.vliz.be/imis/iobis/imis.php?module=dataset&dasid=906 UTF-8 HTML |
聯絡資訊
- 託管人 ●
- 出處
- 連絡人
地理涵蓋範圍
PSE, Macquarie I. - http://marineregions.org/mrgid/8592
| 界定座標範圍 | 緯度南界 經度西界 [-55, 158], 緯度北界 經度東界 [-54, 159] |
|---|
分類群涵蓋範圍
urn:lsid:marinespecies.org:taxname:231413
| Species | Mirounga leonina |
|---|
時間涵蓋範圍
| 起始日期 | 1950-01-01 |
|---|
額外的詮釋資料
marine, harvested by iOBIS