干旱区生态环境知识资源中心(Arid): Inferring community assembly mechanisms from functional and phylogenetic diversity: The relative contribution of environmental filtering decreases along a sand desertification gradient in a desert steppe community

Arid

DOI	10.1002/ldr.3906
	Inferring community assembly mechanisms from functional and phylogenetic diversity: The relative contribution of environmental filtering decreases along a sand desertification gradient in a desert steppe community
	Wang, Xing; Song, Nai-Ping; Yang, Xin-Guo; Chen, Lin; Qu, Wen-Jie; Wang, Lei
通讯作者	Wang, L (corresponding author), Ningxia Univ, Northwest Natl Key Lab Breeding Base Land Degrada, Yinchuan 750021, Ningxia, Peoples R China.
来源期刊	LAND DEGRADATION & DEVELOPMENT
ISSN	1085-3278
EISSN	1099-145X
出版年	2021
卷号	32 期号:7 页码:2360-2370
英文摘要	The stress-dominance hypothesis (SDH) predicts that environmental filtering will dominate in harsh habitats, while limiting similarity is more important in favourable environments. Here, we test the generality of the SDH to disentangle the relative importance of these two ecological processes along a sand desertification gradient. Data were collected from randomly selected locations in a desert steppe community in Northwest China. In this region, intense habitat fragmentation has resulted in a series of original soil habitat patches called soil islands. These soil islands typically contain Sierozem soils historically subjected to low (L), medium (M), and high (H) levels of sand desertification. Along this sand desertification gradient, soil properties and leaf traits (LDMC, leaf dry matter content; SLA, specific leaf area; LC, leaf carbon concentration; LP, leaf phosphorus concentration; and LN, leaf nitrogen concentration) were measured. We then tested for trait and phylogenetic convergence or divergence using a null model approach. Along the sand desertification gradient, trait convergence trend decreased, while trait divergence trend increased. Similarly, the phylogenetic convergence trends decreased. Traits displaying convergence included LDMC, SLA, and LCC, while LP and LN displayed divergence. The strength of LDMC convergence was negatively correlated with community weighted mean trait values (CWM) for LDMC. In contrast, the strength of LN divergence was positively correlated with CWM for LN. Our results pertaining to LDMC and LN support the SDH. Along the sand desertification gradient, the strength of environmental filtering gradually decreased, while the intensity of limiting similarity gradually increased.
英文关键词	desert steppe leaf traits phylogenetic diversity soil island trait diversity
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000620729600001
WOS类目	Environmental Sciences ; Soil Science
WOS研究方向	Environmental Sciences & Ecology ; Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/351080
作者单位	[Wang, Xing; Song, Nai-Ping; Yang, Xin-Guo; Chen, Lin; Qu, Wen-Jie; Wang, Lei] Ningxia Univ, Northwest Natl Key Lab Breeding Base Land Degrada, Yinchuan 750021, Ningxia, Peoples R China; [Wang, Xing; Song, Nai-Ping; Yang, Xin-Guo; Chen, Lin; Qu, Wen-Jie; Wang, Lei] Ningxia Univ, Key Lab Restorat & Reconstruct Degraded Ecosyst, Minist Educ, Yinchuan, Ningxia, Peoples R China; [Wang, Xing; Song, Nai-Ping; Yang, Xin-Guo; Chen, Lin; Qu, Wen-Jie; Wang, Lei] Ningxia Univ, Joint Res Ctr Ecol & Morphol Resources Dev Wester, Yinchuan, Ningxia, Peoples R China
推荐引用方式 GB/T 7714	Wang, Xing,Song, Nai-Ping,Yang, Xin-Guo,et al. Inferring community assembly mechanisms from functional and phylogenetic diversity: The relative contribution of environmental filtering decreases along a sand desertification gradient in a desert steppe community[J],2021,32(7):2360-2370.
APA	Wang, Xing,Song, Nai-Ping,Yang, Xin-Guo,Chen, Lin,Qu, Wen-Jie,&Wang, Lei.(2021).Inferring community assembly mechanisms from functional and phylogenetic diversity: The relative contribution of environmental filtering decreases along a sand desertification gradient in a desert steppe community.LAND DEGRADATION & DEVELOPMENT,32(7),2360-2370.
MLA	Wang, Xing,et al."Inferring community assembly mechanisms from functional and phylogenetic diversity: The relative contribution of environmental filtering decreases along a sand desertification gradient in a desert steppe community".LAND DEGRADATION & DEVELOPMENT 32.7(2021):2360-2370.