Species-area relationship within and across functional groups at alpine grasslands on the northern Tibetan Plateau, China

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > Journal of Mountain Science > Journal of Mountain Science-2016 > Vol13 No.2

	Species-area relationship within and across functional groups at alpine grasslands on the northern Tibetan Plateau, China
	ZHOU Nan; WU Jian-shuang; SHEN Zhen-xi; ZHANG Xian-zhou; YANG Peng-wan
刊名	Journal of Mountain Science
	2016-02
卷号	13 期号:2 页码:265-275
关键词	Changtang Nature Reserve Complementary response Plant functional groups Plant life forms Species coexistence
ISSN号	1672-6316
通讯作者	WU Jian-shuang
英文摘要	The species-area relationship (SAR) is one of the most fundamental concepts in community ecology and is helpful for biodiversity conservation. However, few studies have systematically addressed this topic for different alpine grassland types on the Tibetan Plateau, China. We explored whether the plant composition of different functional groups affects the manner in which species richness increases with increasing area at scales ≤ 1.0 m2. We also compared species richness (S) within and across forbs, legumes, sedges and grasses, with sampling subplot area (A) increasing from 0.0625 m2 to 1.0 m2 between alpine meadow and steppe communities. We applied a logarithmic function (S = b0 + b1 ln A) to determine the slope and intercept of SAR curves within and across functional groups. The results showed that the logarithmic relationship holds true between species richness and sampling area at these small scales. Both the intercept and slope of the logarithmic forbs-area curves are significantly higher than those for the three other functional groups (P < 0.05). Forb accounts for about 91.9 % of the variation in the intercept and 75.0% of the variation in the slope of the SAR curve when all functional groups’ data were pooled together. Our results indicated that the different SAR patterns should be linked with species dispersal capabilities, environmental filtering, and life form composition within alpine grassland communities. Further studies on the relationship between species diversity and ecosystem functions should specify the differential responses of different functional groups to variations in climate and anthropogenic disturbances.
收录类别	SCI
语种	英语
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/14073]
专题	成都山地灾害与环境研究所_Journal of Mountain Science _Journal of Mountain Science-2016_Vol13 No.2
推荐引用方式 GB/T 7714	ZHOU Nan,WU Jian-shuang,SHEN Zhen-xi,et al. Species-area relationship within and across functional groups at alpine grasslands on the northern Tibetan Plateau, China[J]. Journal of Mountain Science,2016,13(2):265-275.
APA	ZHOU Nan,WU Jian-shuang,SHEN Zhen-xi,ZHANG Xian-zhou,&YANG Peng-wan.(2016).Species-area relationship within and across functional groups at alpine grasslands on the northern Tibetan Plateau, China.Journal of Mountain Science,13(2),265-275.
MLA	ZHOU Nan,et al."Species-area relationship within and across functional groups at alpine grasslands on the northern Tibetan Plateau, China".Journal of Mountain Science 13.2(2016):265-275.