基于卫星跟踪对大连市矾坨子岛黄嘴白鹭亚成体的迁徙研究

Study on the Migration of Subadult Egretta eulophotes by Statellite Tracking at Fantuozi Island,Dalian City

2016年6月,利用卫星发射器对大连市矾坨子岛上黄嘴白鹭Egretta eulophotes亚成体的迁徙进行了追踪研究。共安装了13台发射器,仅有5台收集到国内完整数据,损失率达61. 54%。研究结果表明,黄嘴白鹭亚成体7月末8月初开始迁徙,主要有2条迁徙路线,1条是沿中国及朝鲜沿海迁徙,主要停歇地为朝鲜西部沿海,大连南部及其岛屿、山东、江苏、上海、浙江、福建、广东、香港、海南等地沿海;另1条是在中国内陆迁徙,主要停歇地为江苏、安徽、河南、湖北、湖南、贵州、广西、云南等地,其中,河南省信阳市和贵州省兴义市万峰湖是新发现的停歇地。另外,还分析了标记个体2017年没有返回中国境内的卫星数据的原因。

The migration of subadult Egretta eulophotes was studied by using satellite tracking during June in 2016 at Fantuozi island,Dalian city,Liaoning province.A total of 13 transmitters were installed on the subadult E.eulophotes,and the full domestic data were collected from only 5 transmitters with loss rate of 61.54%.The result showed that the subadult E.eulophotes started migrating in the end of July and the beginning of August.There were 2 main migratory routes,and one of which was the coastal migration route along the coastline of China and the west of North Korea.The important stopover sites were the coastal wetlands and the islands of southern Dalian,Shandong,Jiangsu,Shanghai,Zhejiang,Fujian,Guangdong,Hong Kong and Hainan.Another migratory route was along the inland of China,and the important stopover sites were Jiangsu,Anhui,Henan,Hubei,Hunan,Guizhou,Guangxi and Yunnan.Especially,Xinyang city(Henan province)and Wanfeng Lake(Xingyi city,Guizhou province)were identified as 2 new stopover sites of E.eulophotes.In addition,the absence reasons of returning satellite data in 2017 in China were analyzed.