气候变化领域集成服务门户(CCPortal): The hidden network of biocrust successional stages in the High Arctic: Revealing abiotic and biotic factors shaping microbial and metazoan communities

CCPortal

DOI	10.1016/j.scitotenv.2024.171786
	The hidden network of biocrust successional stages in the High Arctic: Revealing abiotic and biotic factors shaping microbial and metazoan communities
	Mugnai, Gianmarco; Pinchuk, Irina; Borruso, Luigimaria; Tiziani, Raphael; Sannino, Ciro; Canini, Fabiana; Turchetti, Benedetta; Mimmo, Tanja; Zucconi, Laura; Buzzini, Pietro
发表日期	2024
ISSN	0048-9697
EISSN	1879-1026
起始页码	926
卷号	926
英文摘要	Despite the important role that biocrust communities play in maintaining ecosystem structure and functioning in deglaciated barren soil, few studies have been conducted on the dynamics of biotic communities and the impact of physicochemical characteristics in shaping the different successional stages. In this study an integrated approach encompassing physicochemical parameters and molecular taxonomy was used for identifying the indicator taxa and the presence of intra- and inter -kingdom interactions in five different crust/biocrust successional stages: i) physical crust, ii) cyanobacteria-dominated biocrust, iii) cyanobacteria/ moss -dominated biocrust, iv) moss -dominated biocrust and v) bryophyte carpet. The phylum Gemmatimonadota was the bacterial indicator taxon in the early stage, promoting both inter- and intra-kingdom interactions, while Cyanobacteria and Nematoda phyla played a pivotal role in formation and dynamics of cyanobacteria-dominated biocrusts. A multitrophic community, characterized by a shift from oligotrophic to copiotrophic bacteria and the presence of saproxylic arthropod and herbivore insects was found in the cyanobacteria/moss-dominated biocrust, while a more complex biota, characterized by an increased fungal abundance (classes Sordariomycetes, Leotiomycetes, and Dothideomycetes, phylum Ascomycota), associated with highly trophic consumer invertebrates (phyla Arthropoda, Rotifera, Tardigrada), was observed in moss -dominated biocrusts. The class Bdelloidea and the family Hypsibiidae (phyla Rotifera and Tardigrada, respectively) were metazoan indicator taxon in bryophyte carpet, suggesting their potential role in shaping structure and function of this late successional stage. Nitrogen and phosphorus were the main physicochemical limiting factors driving the shift among different crust/biocrust successional stages. Identification and characterization of indicator taxa, biological intraand inter -kingdom interactions and abiotic factors driving the shift among different crust/biocrust successional stages provide a detailed picture on crust/biocrust dynamics, revealing a strong interconnection among micro- and macrobiota systems. These findings enhance our understanding of biocrust ecosystems in High Arctic, providing valuable insights for their conservation and management in response to environmental shifts due to climate change.
英文关键词	Biological soil crusts; Ecosystem dynamics; Indicator species analysis; Co-occurrence; Soil chemistry
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:001220956200001
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/304427
作者单位	University of Perugia; Free University of Bozen-Bolzano; Tuscia University
推荐引用方式 GB/T 7714	Mugnai, Gianmarco,Pinchuk, Irina,Borruso, Luigimaria,et al. The hidden network of biocrust successional stages in the High Arctic: Revealing abiotic and biotic factors shaping microbial and metazoan communities[J],2024,926.
APA	Mugnai, Gianmarco.,Pinchuk, Irina.,Borruso, Luigimaria.,Tiziani, Raphael.,Sannino, Ciro.,...&Buzzini, Pietro.(2024).The hidden network of biocrust successional stages in the High Arctic: Revealing abiotic and biotic factors shaping microbial and metazoan communities.SCIENCE OF THE TOTAL ENVIRONMENT,926.
MLA	Mugnai, Gianmarco,et al."The hidden network of biocrust successional stages in the High Arctic: Revealing abiotic and biotic factors shaping microbial and metazoan communities".SCIENCE OF THE TOTAL ENVIRONMENT 926(2024).