气候变化领域集成服务门户(CCPortal): Altitudinal variation in soil nematode communities in an alpine mountain region of the eastern Tibetan plateau

CCPortal

DOI	10.1016/j.ejsobi.2024.103617
	Altitudinal variation in soil nematode communities in an alpine mountain region of the eastern Tibetan plateau
	Li, Xianping; Liu, Zhipeng; Zhang, Chunwei; Zheng, Lingyun; Li, Huixin
发表日期	2024
ISSN	1164-5563
EISSN	1778-3615
起始页码	121
卷号	121
英文摘要	Distribution patterns of species diversity in high mountains have received considerable attention in scientific research and conservation efforts. However, our understanding of the corresponding altitudinal patterns of soil fauna across spatial scales, particularly on high-altitude plateaus, remains limited. To address this gap, we conducted a case study on Balang Mountain, located at the eastern margin of the Tibetan Plateau. Our focus was on soil nematodes within an altitudinal range of approximately 3000 to 4000 m. We collected climate, soil, and vegetation data to test multiple hypotheses, including the effects of energy, water availability, productivity, soil resource availability, and pH constraints on nematode communities. Dominance analysis and commonality analysis were employed to determine the relative support of these hypotheses in explaining nematode abundance, diversity, and composition. Beta-diversity, which links local alpha-diversity and regional gammadiversity, was decomposed into distinct components to elucidate ecological processes along altitude and across diversity facets. Our findings revealed distinct yet significant altitudinal patterns in nematode abundance (concave-down), richness (monotonous decrease), and evenness (concave-up). Water and soil resource availability emerged as dominant factors influencing nematode abundance, while energy and pH played pivotal roles in determining nematode richness. Additionally, water and productivity were identified as the most significant drivers shaping nematode community composition. Furthermore, a significant influence of pH on gamma- and beta-diversities was observed, surpassing the impact of other predictors at a coarse level. Upon decomposing beta-diversities into different components, we discovered that taxa substitution (turnover) and individual substitution (balance-variation) were the primary contributors to community dissimilarity among altitudes, indicating strong effects of environmental sorting or spatial and historical constraints on soil nematode communities. These findings contribute to our understanding of the distribution patterns and processes of soil nematode communities along altitude in alpine ecosystems. Moreover, they offer valuable insights into soil biodiversity distribution and conservation in high-mountain environments.
英文关键词	Altitudinal distribution; Soil nematodes; Beta-diversity; Species turnover; Alpine ecosystem
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Agriculture
WOS类目	Ecology ; Soil Science
WOS记录号	WOS:001223149700001
来源期刊	EUROPEAN JOURNAL OF SOIL BIOLOGY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/304860
作者单位	Nanjing Agricultural University
推荐引用方式 GB/T 7714	Li, Xianping,Liu, Zhipeng,Zhang, Chunwei,et al. Altitudinal variation in soil nematode communities in an alpine mountain region of the eastern Tibetan plateau[J],2024,121.
APA	Li, Xianping,Liu, Zhipeng,Zhang, Chunwei,Zheng, Lingyun,&Li, Huixin.(2024).Altitudinal variation in soil nematode communities in an alpine mountain region of the eastern Tibetan plateau.EUROPEAN JOURNAL OF SOIL BIOLOGY,121.
MLA	Li, Xianping,et al."Altitudinal variation in soil nematode communities in an alpine mountain region of the eastern Tibetan plateau".EUROPEAN JOURNAL OF SOIL BIOLOGY 121(2024).