Winter diet and food selection of the Black-necked Crane Grus nigricollis in Dashanbao, Yunnan, China

CORC > 昆明动物研究所 > 昆明动物研究所 > 遗传资源与进化国家重点实验室 > 鸟类学

	Winter diet and food selection of the Black-necked Crane Grus nigricollis in Dashanbao, Yunnan, China
	Dong HY 1,2; Lu GY 1,2; Zhong XY 3; Yang XJ[*]1
刊名	PeerJ
	2016
卷号	4 期号:X 页码:e1968
关键词	Black-necked Crane Dashanbao Diet composition Food availability Food selection Grus nigricollis
通讯作者	yangxj@mail.kiz.ac.cn
英文摘要	The Black-necked Crane Grus nigricollis is a globally vulnerable species whose food is the factor determining its long-term survival. Understanding dietary habits, food preferences, and related factors will facilitate the development of effective conservation plans for the protection of this vulnerable species. For this purpose, we used video recordings and sampling of food availability to examine the dietary composition and temporal variation in food selection of Black-necked Cranes wintering in the Dashanbao National Nature Reserve, China. The Black-necked Crane's diet consists primarily of domestic food crops such as grains (74%) and potatoes (8%), in addition to invertebrates (14%). A much smaller proportion of the diet was comprised of turnips and wild herbaceous plants and tubers. There was monthly variation in food selection, partially related to food availability. Grains were most available in November and decreased through the winter, whereas invertebrates were more available in November and February than in December and January. Grain consumption was lowest in November but higher from December through February. Invertebrate consumption was highest in November and February. The cranes preferred to eat grains throughout winter months, while they mainly selected invertebrates in November and February. We suggested invertebrate populations sharply declined in December and January due to the low temperature. In addition, grain consumption was negatively associated with invertebrate availability. In November, when invertebrates were most abundant, and despite a concomitant peak in grain abundance, we suggested cranes exhibited a preference for invertebrates over grains. We recommend that the protection administration provide appropriate supplemental foods for cranes during freezing weather.
收录类别	SCI
资助信息	The Administration of ZhaoTong Forestry Bureau approved our study on behavior observation and food availability sampling in the research plot in Dashanbao National Nature Reserve (IDZTL2008163).
语种	英语
内容类型	期刊论文
源URL	[http://159.226.149.26:8080/handle/152453/9770]
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, China 2.Kunming College of Life Science, University of Chinese Academy of Science, Kunming, China 3.Administrative Bureau, Dashanbao National Nature Reserve, Zhao Tong, Yunnan, China
推荐引用方式 GB/T 7714	Dong HY,Lu GY,Zhong XY,et al. Winter diet and food selection of the Black-necked Crane Grus nigricollis in Dashanbao, Yunnan, China[J]. PeerJ,2016,4(X):e1968.
APA	Dong HY,Lu GY,Zhong XY,&Yang XJ[*].(2016).Winter diet and food selection of the Black-necked Crane Grus nigricollis in Dashanbao, Yunnan, China.PeerJ,4(X),e1968.
MLA	Dong HY,et al."Winter diet and food selection of the Black-necked Crane Grus nigricollis in Dashanbao, Yunnan, China".PeerJ 4.X(2016):e1968.