The effects of temporal and spatial variations in food resources on the distribution and abundance of black-necked cranes, Grus nigricollis

KIZ OpenIR > 科研部门 > 鸟类学（杨晓君）

	The effects of temporal and spatial variations in food resources on the distribution and abundance of black-necked cranes, Grus nigricollis
	Haoyan, D; Hao, W; Qingming, H; Mengmeng, W; Hua, L; Wenfei, Z; Tingyou, L; Pinghe, W; Xiaojun, Y
	2024
发表期刊	ORNITHOL RES
卷号	33 期号:1
摘要	The black-necked crane, Grus nigricollis, is categorized as Vulnerable on the IUCN Red List. Food distribution and biomass are factors that will determine its long-term survival. Understanding food variation will facilitate the development of effective conservation plans for the protection of this vulnerable species. Available biomass of food for black-necked cranes was sampled on the agricultural farmlands and grasslands used by foraging flocks of these species in Dashanbao Nature Reserve, during the winter periods of 2012 and 2015. We compared variation separately in biomass of a particular group (e.g. invertebrates, grains and potato) and analysed the relationship between food biomass utilisation by cranes. The results showed that relative availability of invertebrates in grassland, and potato and grain in farmland, varied seasonally. The number of cranes was affected by the monthly and yearly food variation in the reserve. In grassland habitat, crane abundance was positively related to invertebrate biomass. However, there was no significant correlation in farmland habitat. The annual difference in grain and potato may be due to damage by spring freezing in 2012-2013 and 2013-2014. The monthly difference for potatoes and grains are probably due to the fact that potatoes and grains are planted in March, so that the food biomass in this period is significantly higher than in other months. Availability food in both habitats vary across years, months, which relate to a seasonal crop depletion and farming, and annual to crop productivity, and invertebrate availability, influenced in part by winter temperatures. Therefore, we recommend that there should be enough food biomass in the reserve for cranes to forage during the cold-weather periods, and expanded grassland foraging habitat, so as to expand the range of foraging and increase the diversity of food for the cranes.
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.kiz.ac.cn/handle/152453/14683
专题	科研部门_鸟类学（杨晓君）
推荐引用方式 GB/T 7714	Haoyan, D,Hao, W,Qingming, H,et al. The effects of temporal and spatial variations in food resources on the distribution and abundance of black-necked cranes, Grus nigricollis[J]. ORNITHOL RES,2024,33(1).
APA	Haoyan, D.,Hao, W.,Qingming, H.,Mengmeng, W.,Hua, L.,...&Xiaojun, Y.(2024).The effects of temporal and spatial variations in food resources on the distribution and abundance of black-necked cranes, Grus nigricollis.ORNITHOL RES,33(1).
MLA	Haoyan, D,et al."The effects of temporal and spatial variations in food resources on the distribution and abundance of black-necked cranes, Grus nigricollis".ORNITHOL RES 33.1(2024).

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YXJ2025042103.pdf（1657KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	请求全文