韓國李博士再度稍來訊息
他搜集了今年冬天(2014-2015)標記黑面琵鷺的再觀察(目擊回收)資料
分析2002年以來在韓國繫放(戴腳環)的273隻黑面琵鷺的再觀察情形
發現其中有107隻在今年冬天有再被各地人士觀察到
總再觀察率達39.2%
以下是李博士的信件原文
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How are you? The winter is going now.
I am sending you the re-sights rate of BFSpoonbills in this 2014-2015 winter.
Total 107 color bands were re-sighted among 273 birds attached from 2002 to 2014 in Korea.
This means 39.2% of total were seen in this winter. At least 65.4% of juveniles (less than last winter, 74.5%) born in 2014 summer, have succeeded to migrate to wintering area.
And the survial rates were assumed on 76.2% on 1st winter, 61.1% on 2nd winter and so on, by calculated with the all re-sighted data.
This data were collected from your BFSCN colorband webpage, HK WBS color band webpage, and personal collected data from JBFSN, personal blogs, or other direct emails.
Thank you for your many efforts and helps.
If you have some comments, errors, or questions, please let me know.
Best wishes,
Kisup Lee
