干旱区生态环境知识资源中心(Arid): Contrasting responses of diazotrophic specialists, opportunists, and generalists to steppe types in Inner Mongolia

Arid

DOI	10.1016/j.catena.2019.104168
	Contrasting responses of diazotrophic specialists, opportunists, and generalists to steppe types in Inner Mongolia
	Wang, Yansu 1,2; Kou, Yongping 3; Li, Chaonan 3; Tu, Bo 3; Wang, Junming 4; Yao, Minjie 3; Li, Xiangzhen 3
通讯作者	Li, Xiangzhen
来源期刊	CATENA
ISSN	0341-8162
EISSN	1872-6887
出版年	2019
卷号	182
英文摘要	Assembly mechanisms and responses of diazotrophic habitat specialists, opportunists, and generalists may differ among various steppe ecosystems. In this study, we investigated the ecological processes that determine the assemblies of diazotrophic communities in meadows and typical steppes (MT), desert steppes (D), and sandy steppes (S) and the effects of habitat environments on diazotrophic specialists, opportunists, and generalists in Inner Mongolia, China. The results showed that taxonomic and phylogenetic communities of diazotrophs were clustered according to their habitat types, as community dissimilarities among habitat types were significantly higher than those within them. Variable selection and dispersal limitation were recognized as the dominant ecological processes that shape diazotrophic community assemblages. Furthermore, the diazotrophic populations were dichotomized into specialists, opportunists and generalists with various strategies to adapt to habitat types. The richness of specialists significantly correlated with vegetation variables, implying that specialists have greater responses to vegetation than generalists and opportunists. This study provides insights into the mechanisms of diazotrophic community differentiation when habitat environments change.
英文关键词	Diazotrophs nifH gene Ecology processes Specialists Generalists Opportunists Steppe ecosystem
类型	Article
语种	英语
国家	Peoples R China ; USA
收录类别	SCI-E
WOS记录号	WOS:000482493700059
WOS关键词	COOCCURRENCE PATTERNS ; BACTERIAL COMMUNITIES ; MULTIVARIATE ANALYSES ; NITROGEN-FIXATION ; FUNGAL COMMUNITY ; DIVERSITY ; DISPERSAL ; HABITAT ; DESERT ; PRECIPITATION
WOS类目	Geosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS研究方向	Geology ; Agriculture ; Water Resources
EI主题词	2019-11-01
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/310659
作者单位	1.Jiangsu Normal Univ, Key Lab Biotechnol Med Plants Jiangsu Prov, Xuzhou 221116, Jiangsu, Peoples R China; 2.Jiangsu Normal Univ, Sch Life Sci, Xuzhou 221116, Jiangsu, Peoples R China; 3.Chinese Acad Sci, Chengdu Inst Biol, Key Lab Sichuan Prov, Key Lab Environm & Appl Microbiol,Chinese Acad Sc, Chengdu 610041, Sichuan, Peoples R China; 4.Univ Illinois, Prairie Res Inst, Climate & Atmospher Sci Sect, Illinois State Water Survey, Champaign, IL 61802 USA
推荐引用方式 GB/T 7714	Wang, Yansu,Kou, Yongping,Li, Chaonan,et al. Contrasting responses of diazotrophic specialists, opportunists, and generalists to steppe types in Inner Mongolia[J],2019,182.
APA	Wang, Yansu.,Kou, Yongping.,Li, Chaonan.,Tu, Bo.,Wang, Junming.,...&Li, Xiangzhen.(2019).Contrasting responses of diazotrophic specialists, opportunists, and generalists to steppe types in Inner Mongolia.CATENA,182.
MLA	Wang, Yansu,et al."Contrasting responses of diazotrophic specialists, opportunists, and generalists to steppe types in Inner Mongolia".CATENA 182(2019).