气候变化领域集成服务门户(CCPortal): Endozoochorous Seed Dispersal by Yak and Tibetan Sheep on Alpine Meadow and Shrubland

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DOI	10.1016/j.rama.2022.11.003
	Endozoochorous Seed Dispersal by Yak and Tibetan Sheep on Alpine Meadow and Shrubland
	Liu, Jin Yin; Yu, Ying Wen; Mou, Xiao Ming; Kong, Yang Yun; Li, Jing
发表日期	2023
ISSN	1550-7424
EISSN	1551-5028
起始页码	198
结束页码	205
卷号	87
英文摘要	The presence of seeds in livestock dung can alter the composition of aboveground vegetation. However, there have been few studies of the composition of the dung seed bank of Tibetan livestock on different vegetation types on the Qinghai-Tibet Plateau. The aims of this study were to identify the differences of endozoochorous seed dispersal in dung type and vegetation type and determine the relationships between the dung seed bank and aboveground vegetation in meadow and shrubland. We conducted experiments to assess the density and plant diversity of the seed bank of yak and sheep dung in meadow and shrubland. The dung seed density in Tibetan sheep dung from meadow sites was the highest (239.3 +/- 13.8 seeds kg(-1)), and the number of species in yak dung from meadow sites was the highest. Among seasons, the livestock dung seed density was highest in November and the lowest in April. The species richness of the dung seed bank was higher in meadows than shrubland and higher in yak dung than that in Tibetan sheep dung only for shrubland. The dispersal of dung seeds has a greater impact on vegetation changes in meadows than shrubland, and the dispersal of seed in yak dung has a greater effect on vegetation changes than does dispersal in Tibetan sheep dung in shrubland. There were more monocotyledons in yak dung of shrubland (42%), whereas there were more dicotyledons in Tibetan sheep dung of meadow (45%). This suggests that yak and Tibetan sheep are complementing each other in their seed dispersal potential. Therefore, we recommend grazing more Tibetan sheep in the meadow and more yak in the shrubland on the Qinghai-Tibet Plateau. (c) 2022 The Society for Range Management. Published by Elsevier Inc. All rights reserved.
关键词	alpine grassland dung seed bank Qinghai-Tibet Plateau species diversity Tibetan livestock vegetation change
英文关键词	WHITE-TAILED DEER; CATTLE DUNG; LARGE HERBIVORES; GERMINATION; ESTABLISHMENT; GRASSLAND; SURVIVAL; DIVERSITY; PLATEAU; PASTURE
WOS研究方向	Ecology ; Environmental Sciences
WOS记录号	WOS:000949005200020
来源期刊	RANGELAND ECOLOGY & MANAGEMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/283383
作者单位	Lanzhou University
推荐引用方式 GB/T 7714	Liu, Jin Yin,Yu, Ying Wen,Mou, Xiao Ming,et al. Endozoochorous Seed Dispersal by Yak and Tibetan Sheep on Alpine Meadow and Shrubland[J],2023,87.
APA	Liu, Jin Yin,Yu, Ying Wen,Mou, Xiao Ming,Kong, Yang Yun,&Li, Jing.(2023).Endozoochorous Seed Dispersal by Yak and Tibetan Sheep on Alpine Meadow and Shrubland.RANGELAND ECOLOGY & MANAGEMENT,87.
MLA	Liu, Jin Yin,et al."Endozoochorous Seed Dispersal by Yak and Tibetan Sheep on Alpine Meadow and Shrubland".RANGELAND ECOLOGY & MANAGEMENT 87(2023).