Cross-taxon congruence of aquatic microbial communities across geological ages in Iceland: Stochastic and deterministic processes

	Cross-taxon congruence of aquatic microbial communities across geological ages in Iceland: Stochastic and deterministic processes
	Zhao, Wenqian; Pan, Feiyan; Meng, Fanfan; Soininen, Janne; Tupola, Vilja; Ren, Minglei; Zhu, Lifeng; Wang, Jianjun
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2021
卷号	774
英文摘要	Biotic groups usually have nonrandom cross-taxon relationships in their biodiversity or compositions across sites, but it is poorly known how such congruence varies across long-term ecosystem development, and what are the ecological processes underlying biodiversity patterns. Here, we examined the cross-taxon congruence in diversity and compositions of bacteria, fungi and diatoms in streams from four regions with different geological ages in Iceland, and further studied their community assembly processes. Bacteria and fungi showed contrasting trends in alpha and gamma diversities across geological ages, while their beta diversity patterns were consistent, being the lowest in the oldest region. The three taxonomic groups had the strongest cross-taxon congruence of beta diversity in the oldest region, while the weakest for intermediate-aged regions. Although environmental variables played important roles in shaping their congruence, biotic interaction had nonnegligible influences. Deterministic processes, being dominant for bacteria and fungi, had the highest relative influence in intermediate-aged regions, whereas diatoms showed higher stochasticity. We proposed a four-phase conceptual model to show how the balance of deterministic and stochastic processes changes across geological ages. Taken together, our results provide an advanced understanding of cross-taxon congruence and community assembly processes for aquatic communities over long-term periods of geological age. (C) 2021 Elsevier B.V. All rights reserved.
内容类型	期刊论文
源URL	[http://159.226.73.51/handle/332005/20497]
专题	中国科学院南京地理与湖泊研究所
推荐引用方式 GB/T 7714	Zhao, Wenqian,Pan, Feiyan,Meng, Fanfan,et al. Cross-taxon congruence of aquatic microbial communities across geological ages in Iceland: Stochastic and deterministic processes[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2021,774.
APA	Zhao, Wenqian.,Pan, Feiyan.,Meng, Fanfan.,Soininen, Janne.,Tupola, Vilja.,...&Wang, Jianjun.(2021).Cross-taxon congruence of aquatic microbial communities across geological ages in Iceland: Stochastic and deterministic processes.SCIENCE OF THE TOTAL ENVIRONMENT,774.
MLA	Zhao, Wenqian,et al."Cross-taxon congruence of aquatic microbial communities across geological ages in Iceland: Stochastic and deterministic processes".SCIENCE OF THE TOTAL ENVIRONMENT 774(2021).