东方白鹳幼鸟渤海湾越冬群体的迁徙策略

嘎日迪, 樊淑娟, 曹垒, 张贝西, 王昱熙, 朱宝光, 董树斌, 赵格日乐图

Migration strategy of the Bohai Bay wintering population of juvenile Oriental Storks (Ciconia boyciana)

Garidi, Shujuan Fan, Lei Cao, Beixi Zhang, Yuxi Wang, Baoguang Zhu, Shubin Dong, Anton Sasin, Gerelt Zhao

表1 东方白鹳渤海湾越冬群体幼鸟秋季和春季迁徙参数统计表。加粗字体表示有显著性差异。

Table 1 Table of parameters of autumn and spring migration of juvenile Oriental Storks population in Bohai Bay. Significant differences were shown in bold.

迁徙参数 Parameters 秋季 Autumn (mean ± SD, N = 13) 春季 Spring (mean ± SD, N = 9) P 迁徙开始时间 Departure date 24 October ± 8 23 April ± 35 迁徙结束时间 Arrival date 21 November ± 17 4 May ± 31 迁徙持续时间 Migration duration (d) 28.0 ± 21.2 11.2 ± 8.7 < 0.05 迁徙距离 Migration distance (km) 1,566.9 ± 325.9 1,533.8 ± 424.8 0.69 迁徙速度 Migration speed (km/d) 92.4 ± 61.7 211.1 ± 118.2 < 0.05 迁徙飞行速度 Travel speed (km/d) 185.5 ± 72.0 280.4 ± 62.0 < 0.05 迁徙飞行时间 Travel duration (d) 10.3 ± 6.5 5.9 ± 2.5 < 0.05 停歇时间 Stopover duration (d) 17.8 ± 18.2 5.4 ± 9.7 0.05 停歇位点数 Number of stopovers 1.8 ± 1.5 0.7 ± 1.1 0.07