Nest site selection by Black-necked Crane Grus nigricollis in the Ruoergai Wetland, China

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	Nest site selection by Black-necked Crane Grus nigricollis in the Ruoergai Wetland, China
	Wu HQ 1; Zha K 2; Zhang M 2; Yang XJ[*]1
刊名	BIRD CONSERVATION INTERNATIONAL
	2009
卷号	19 期号:3 页码:277-286
ISSN号	0959-2709
通讯作者	yangxj@mail.kiz.ac.cn
合作状况	其它
英文摘要	From 5 May 2003 to early June 2005, nest site selection of Black-necked Cranes Grits nigricollis was studied at the Ruoergai Wetland Nature Reserve (RWNR), an important breeding area for the species in China. Results showed that the crane nests only in wetland environments, including lake, swamp and river microhabitats. However, the bird showed different selection patterns in these microhabitats. According to the Ivelev selectivity index (S.I.), cranes preferred lakes and avoided swampy areas, while they used river areas in proportion to their availability. Factors associated with the selection of nest sites included water body size, distance to water, water depth and the level of nest concealment. Nest size was a function of the microhabitat used for nesting; nests were largest in lakes, and similarly-sized in swamp and river habitats. A certain water depth was a prerequisite for nest site selection (mean = 31.1 cm), but no differences were found among different microhabitats. Compared with nests found in Qinghai, Tibet, and Ladakh, nests in Ruoergai Wetland were smaller, but water depth near nesting sites was higher (mean = 31.1 cm vs 18.2 cm). Different plant communities, climate and disturbance are likely to be related to these differences. Conservation efforts should focus on the protection of existing lakes, minimizing disturbance impacts and maintaining small patches (i.e. 100 m(2) water bodies) of swamp areas as important buffer zones. In the future, restoration of wetlands to decrease fragmentation, and reduction of habitat degradation are advocated for effective conservation of this species.
收录类别	SCI
资助信息	Financial support for the study was provided by a grant from the Chinese Academy of Sciences (KSCX2-SW-119), Western light foundation of Chinese Academy of Sciences, and the International Crane Foundation. We are grateful to Dr. Li Fengshan, Beth Lorence,
原文出处	2009193277.pdf
语种	英语
公开日期	2010-08-24
内容类型	期刊论文
源URL	[http://159.226.149.42:8088/handle/152453/5795]
专题	昆明动物研究所_鸟类学昆明动物研究所_遗传资源与进化国家重点实验室
作者单位	1.State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan 650223, P. R. China 2.Ruoergai Wetland Management Bureau, Ruoergai, Sichuan 624500, P. R. China
推荐引用方式 GB/T 7714	Wu HQ,Zha K,Zhang M,et al. Nest site selection by Black-necked Crane Grus nigricollis in the Ruoergai Wetland, China[J]. BIRD CONSERVATION INTERNATIONAL,2009,19(3):277-286.
APA	Wu HQ,Zha K,Zhang M,&Yang XJ[*].(2009).Nest site selection by Black-necked Crane Grus nigricollis in the Ruoergai Wetland, China.BIRD CONSERVATION INTERNATIONAL,19(3),277-286.
MLA	Wu HQ,et al."Nest site selection by Black-necked Crane Grus nigricollis in the Ruoergai Wetland, China".BIRD CONSERVATION INTERNATIONAL 19.3(2009):277-286.