Seasonal Migration and Daily Movement Patterns of Sympatric Overwintering Black-Necked Cranes (Grus nigricollis) and Common Cranes (Grus grus) in Caohai, Guizhou, China

IF 0.7 4区生物学 Q3 ORNITHOLOGY

Waterbirds Pub Date : 2021-12-23 DOI:10.1675/063.044.0203

Zhang Ming-Ming, Hu Can-Shi, Sun Xi-jiao, Suo Hai-jun

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引用次数: 1

Abstract

Abstract. Wintering Black-necked (Grus nigricollis) and Common (G. grus) cranes occur sympatrically in Caohai Wetland, Guizhou, China. Seasonal migration dynamics, daily movement patterns, and diurnal activity budgets of the two crane species were investigated in Caohai Wetland, in order to characterize their wintering activity differences and the mechanism of interspecific coexistence, during October - April 2014 - 2017. Black-necked Cranes wintered in Caohai for 147 ± 8 days, and Common Cranes for 169 ± 8 days. Common Cranes generally arrived in Caohai 11.4 ± 3.28 days earlier and departed 11.00 ± 3.20 days later than Black-necked Cranes. During winter in Caohai Wetland, the behavioral activities of both the Black-necked and Common cranes were strongly influenced by circadian rhythms. However, there were significant differences in daily temporal patterns between them in percent time spent in specific behaviors. Common Cranes left their roosting sites 20 min. earlier than Black-necked Cranes and returned 32 min. later. Common Cranes also spent more time foraging and being vigilant than Black-necked Cranes.

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贵州草海同域越冬黑颈鹤和鹤的季节迁徙和日运动规律

摘要越冬黑颈鹤(Grus nigricollis)和鹤(G. Grus)在贵州草海湿地共生。2014年10月至2017年4月，对草海湿地两种鹤的季节迁徙动态、日活动模式和日活动预算进行了调查，以表征两种鹤的越冬活动差异和种间共存机制。黑颈鹤在草海越冬时间为147±8天，白鹤为169±8天。白鹤一般比黑颈鹤早11.4±3.28天到达草海，晚11.00±3.20天离开。草海湿地冬季黑颈鹤和白鹤的行为活动均受昼夜节律的强烈影响。然而，他们之间的日常时间模式在特定行为所花费的时间百分比上存在显著差异。鹤比黑颈鹤早20分钟离开栖息地，晚32分钟返回。普通鹤也比黑颈鹤花更多的时间觅食和保持警惕。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Waterbirds 生物-鸟类学

CiteScore

1.30

自引率

0.00%

发文量

审稿时长

6-12 weeks

期刊介绍： Waterbirds is an international scientific journal of the Waterbird Society. The journal is published four times a year (March, June, September and December) and specializes in the biology, abundance, ecology, management and conservation of all waterbird species living in marine, estuarine and freshwater habitats. Waterbirds welcomes submission of scientific articles and notes containing the results of original studies worldwide, unsolicited critical commentary and reviews of appropriate topics.