Fewer new species colonize at low frequency N addition in a temperate grassland

doi:10.1111/1365-2435.12585

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	Fewer new species colonize at low frequency N addition in a temperate grassland
	Zhang, Yunhai ; Stevens, Carly J.; Lu, Xiaotao 3; He, Nianpeng 2; Huang, Jianhui ; Han, Xingguo 3
刊名	FUNCTIONAL ECOLOGY
	2016
卷号	30 期号:7
关键词	acidification ammonium accumulative biodiversity ecological processes interspecific competition nitrogen addition frequency nitrogen deposition species turnover
ISSN号	0269-8463
DOI	10.1111/1365-2435.12585
文献子类	Article
英文摘要	Biologically reactive nitrogen (Nr) enrichment threatens biodiversity in diverse ecosystems. Previous controlled N addition experiments may overestimate the effects of atmospheric Nr deposition on the rate of species loss, as it has been found that low frequency Nr additions, as used in traditional studies, lead to more rapid biodiversity loss. It remains unclear, however, whether the colonization of new species (gain) or extinction of old species (loss) is the cause of this difference. By independently manipulating the frequency (twice vs. monthly additions year(-1)) and the rate (from 0 to 50g Nm(-2)year(-1)) of NH4NO3 inputs for six years in a temperate grassland of northern China, we aimed to examine the contribution of gain and loss of species to the reduction in species richness under different regimes of Nr inputs. Results showed that the gain of new species was higher at a high frequency of N addition than that at a low addition frequency, while loss of existing species was similar between the two frequencies of N addition. The number of new species gained decreased and old species lost increased with the increasing rate of Nr addition at both annual and five-year intervals. Cumulative gain of new species was negatively correlated with soil acidification, ammonium concentration and community biomass accumulation, whereas cumulative loss of old species was positively correlated with these variables. Our results revealed lower new species colonization results in lower species richness at low frequency of Nr addition. Findings from this study highlight the important role of N addition frequency in regulating the effects of Nr addition on community dynamics. To assess the effects of atmospheric Nr deposition on ecosystem structure and functioning, it is necessary to assess not only the dose but also the frequency of N addition.
学科主题	Ecology
电子版国际标准刊号	1365-2435
出版地	HOBOKEN
WOS关键词	NITROGEN DEPOSITION ; BIODIVERSITY LOSS ; PLANT DIVERSITY ; RICHNESS ; ESTABLISHMENT ; LIGHT ; SOIL ; ACIDIFICATION ; GERMINATION ; COMPETITION
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
语种	英语
出版者	WILEY
WOS记录号	WOS:000379978100024
资助机构	National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31430016, 31570469, 31170433, 31300384] ; China Postdoctoral Science FoundationChina Postdoctoral Science Foundation [2014M560134, 2015T80153] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences [2014174] ; Natural Environment Research CouncilUK Research & Innovation (UKRI)Natural Environment Research Council (NERC) [ceh010010] Funding Source: researchfish
内容类型	期刊论文
源URL	[http://ir.ibcas.ac.cn/handle/2S10CLM1/24724]
专题	中科院植物分子生理学重点实验室
作者单位	1.Chinese Acad Sci, Synth Res Ctr Chinese Ecosyst Res Network, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 2.Chinese Acad Sci, State Key Lab Forest & Soil Ecol, Inst Appl Ecol, Shenyang 110164, Peoples R China 3.Stevens, Carly J.] Univ Lancaster, Lancaster Environm Ctr, Lancaster LA1 4YQ, England 4.Chinese Acad Sci, State Key Lab Vegetat & Environm Change, Inst Bot, Beijing 100093, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Yunhai,Stevens, Carly J.,Lu, Xiaotao,et al. Fewer new species colonize at low frequency N addition in a temperate grassland[J]. FUNCTIONAL ECOLOGY,2016,30(7).
APA	Zhang, Yunhai,Stevens, Carly J.,Lu, Xiaotao,He, Nianpeng,Huang, Jianhui,&Han, Xingguo.(2016).Fewer new species colonize at low frequency N addition in a temperate grassland.FUNCTIONAL ECOLOGY,30(7).
MLA	Zhang, Yunhai,et al."Fewer new species colonize at low frequency N addition in a temperate grassland".FUNCTIONAL ECOLOGY 30.7(2016).