Numbers of wintering waterbirds and their changes over the past 20 years at Caohai, Guizhou Province

Feng-Shan LI; Wen LIU; Zhen-Ji LI; Qiang LIU; Jian-Dong WU; Sheng HONG; Ru-Bin WANG; Yun-Xun SHI

doi:10.13918/j.issn.2095-8137.2014.s1.0082

Volume 35 Issue S1

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Feng-Shan LI, Wen LIU, Zhen-Ji LI, Qiang LIU, Jian-Dong WU, Sheng HONG, Ru-Bin WANG, Yun-Xun SHI. Numbers of wintering waterbirds and their changes over the past 20 years at Caohai, Guizhou Province. Zoological Research, 2014, 35(S1): 85-91. doi: 10.13918/j.issn.2095-8137.2014.s1.0082

Citation:

Feng-Shan LI, Wen LIU, Zhen-Ji LI, Qiang LIU, Jian-Dong WU, Sheng HONG, Ru-Bin WANG, Yun-Xun SHI. Numbers of wintering waterbirds and their changes over the past 20 years at Caohai, Guizhou Province. Zoological Research, 2014, 35(S1): 85-91. doi: 10.13918/j.issn.2095-8137.2014.s1.0082

Citation:

Feng-Shan LI, Wen LIU, Zhen-Ji LI, Qiang LIU, Jian-Dong WU, Sheng HONG, Ru-Bin WANG, Yun-Xun SHI. Numbers of wintering waterbirds and their changes over the past 20 years at Caohai, Guizhou Province. Zoological Research, 2014, 35(S1): 85-91. doi: 10.13918/j.issn.2095-8137.2014.s1.0082

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Numbers of wintering waterbirds and their changes over the past 20 years at Caohai, Guizhou Province

doi: 10.13918/j.issn.2095-8137.2014.s1.0082

1.
International Crane Foundation, Baraboo, Wisconsin 53913, USA;
2.
Caohai National Nature Reserve, Weining, Guizhou 553100, China, ;
3.
National Research Center for Plateau Wetland, Kunming, Yunnan 650224, China;
4.
Poyang Lake National Nature Reserve, Nanchang, Jiangxi 330038, China

Received Date: 2014-09-10
Rev Recd Date: 2014-12-20
Publish Date: 2014-12-08

Abstract

Abstract

Caohai, lying on the eastern Yunnan and Guizhou Plateau, is the most important wintering and stopover area for waterbirds in the southwestern China. To document species, their populations, and changes of waterbirds wintering at Caohai, a survey was conducted on 11-12 January 2012. Twenty-six species of waterbirds, with a total of 76,872 individuals were recorded. Of the 26 species of waterbirds, 8 species had a population of more than 1,000, including Common Teal (Anas crecca), Black-necked Crane (Grus nigricollis), Spot-billed Duck (Anas poecilorhyncha), Bar-headed Goose (Anser indicus), Tufted Duck (Aythya fuligula), Ruddy Shelduck (Tadorna ferruginea), Eurasian Wigeon (Anas penelope), and Coot (Fulica atra). Coot, Eurasian Wigeon, and Ruddy Shelducks each had population of near 10,000 or more. Over the past 20 years, the total counts of waterbirds have been between 50,000-80,000. Numbers of Black-necked Cranes have been increasing steadily, while Eurasian Cranes (Grus grus) have been declining. The number of diving ducks is far less than the number of 10,000 diving ducks in 1996, likely due to the decline in water quality at Caohai over the past decades. We recommended the following measures be taken into account in waterbird monitoring and protection: more systematic waterbird count; special attention paid to species or groups with dramatic increase or decrease; land use and change to be monitored; and urgent measures to be taken on pollution, invasive species, urban expansion, and tourists.
- Waterbirds,
- Black-necked Crane,
- Population change,
- Caohai

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References(17)

References

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