干旱区生态环境知识资源中心(Arid): Intraspecific trait variation patterns along a precipitation gradient in Mongolian rangelands

Arid

DOI	10.1016/j.flora.2018.11.008
	Intraspecific trait variation patterns along a precipitation gradient in Mongolian rangelands
	Lang, Birgit 1; Geiger, Anna 1; Oyunbileg, Munkhzuul 2; Ahlborn, Julian 3; von Wehrden, Henrik 3; Wesche, Karsten 4,5,6; Oyuntsetseg, Batlai 2; Roemermann, Christine 1,6
通讯作者	Lang, Birgit
来源期刊	FLORA
ISSN	0367-2530
EISSN	1618-0585
出版年	2019
卷号	254 页码:135-146
英文摘要	Moisture availability is the main limiting factor of plant growth and biomass production in arid and semi-arid grasslands. The question whether plant responses to changing precipitation are species-specific, or change over entire plant communities is still controversial. Our study focussed on intraspecific changes in the plant traits canopy height, plant width, specific leaf area, chlorophyll fluorescence, performance index, and individual biomass of three congeneric species pairs with changing precipitation in Mongolian rangelands, covering a gradient from the desert to the forest steppes. Using this trait data set, we focussed on three questions: (i) Is the replacement of congeneric species along an environmental gradient also reflected in their trait values? (ii) Can intraspecific trait variation patterns be derived from patterns in species abundances, i.e., are trait values optimal where species are most abundant? (iii) Is the within-population trait variability lowest in populations growing under very dry conditions, i.e., under highest environmental stress, caused by stronger filtering? We tested the responses of the six traits to changing precipitation according to species' identity and abundance. We found unimodal relationships between most of the species' traits and precipitation, and strong associations between species abundances and trait values, but not for all investigated species. Trait variability did not significantly differ between populations from different positions along the precipitation gradient. Our results highlight that species show multiple or even opposite trait responses along the precipitation gradient. It thus remains challenging to predict how plant distributions will shift under changing environmental conditions based on their trait composition.
英文关键词	Intraspecific trait variability Specific leaf area Chlorophyll fluorescence Artemisia Caragana Stipa
类型	Article
语种	英语
国家	Germany ; Mongolia
收录类别	SCI-E
WOS记录号	WOS:000470109300010
WOS关键词	PLANT FUNCTIONAL TRAITS ; WATER-USE EFFICIENCY ; ELEVATED CO2 ; LEAF-AREA ; CHLOROPHYLL FLUORESCENCE ; RAINFALL VARIABILITY ; SPECIES RICHNESS ; CLIMATE-CHANGE ; WOODY-PLANTS ; DROUGHT
WOS类目	Plant Sciences ; Ecology
WOS研究方向	Plant Sciences ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/215642
作者单位	1.Friedrich Schiller Univ, Inst Ecol & Evolut, Philosophenweg 16, D-07743 Jena, Germany; 2.Natl Univ Mongolia, Sch Arts & Sci, Dept Biol, POB 377, Ulaanbaatar 210646, Mongolia; 3.Leuphana Univ Luneburg, Inst Ecol, Fac Sustainabil, Scharnhorststr 1, D-21335 Luneburg, Germany; 4.Senckenberg Museum Nat Hist, POB 300 154, D-02806 Gorlitz, Germany; 5.Tech Univ Dresden, Int Inst Zittau, Markt 23, D-02763 Zittau, Germany; 6.German Ctr Integrat Biodivers Res iDiv, Halle, Germany
推荐引用方式 GB/T 7714	Lang, Birgit,Geiger, Anna,Oyunbileg, Munkhzuul,et al. Intraspecific trait variation patterns along a precipitation gradient in Mongolian rangelands[J],2019,254:135-146.
APA	Lang, Birgit.,Geiger, Anna.,Oyunbileg, Munkhzuul.,Ahlborn, Julian.,von Wehrden, Henrik.,...&Roemermann, Christine.(2019).Intraspecific trait variation patterns along a precipitation gradient in Mongolian rangelands.FLORA,254,135-146.
MLA	Lang, Birgit,et al."Intraspecific trait variation patterns along a precipitation gradient in Mongolian rangelands".FLORA 254(2019):135-146.