半散放丹顶鹤越冬日活动行为

2005年1月在盐城自然保护区和扎龙自然保护区观察半散放丹顶鹤(Grus japonensis)越冬行为,发现在迁徙丹顶鹤的越冬地盐城保护区,雌雄成体丹顶鹤多数日间行为(包括觅食、运动和修饰行为)无明显差异,而其行为与亚成体丹顶鹤存在一定差异。与盐城自然保护区相比,扎龙自然保护区的雄性、雌性及亚成体丹顶鹤日间的觅食、运动、修饰、静栖等行为均表现出显著差异,它们分别采用了相同或不同的行为对策来适应低温环境。

Daytime budget of quasi-wild Grus japonensis in its wintering

By the method of instantaneous and scan sampling,this paper investigated the daily activity and time budget of quasi-wild(Grus japonensis) in its wintering at Yancheng and Zhalong Nature Reserves in January 2005.At Yancheng Nature Reserve,a natural wintering habitat of G.japonensis,the time budget of male and female adults had no significant difference,but was significantly different to that of the immatureness.At Zhalong Nature Reserve,a natural breeding habitat of G.japonensis,there was a significant difference in the behaviors of feeding,locomotion,body care and resting between male and female adults and immatureness,and the wintering adults and immatureness adopted different strategies to adapt to low temperature environment.