Vascular plant species richness on wetland remnants is determined by both area and habitat heterogeneity

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 城市与区域生态国家重点实验室

	Vascular plant species richness on wetland remnants is determined by both area and habitat heterogeneity
	Shi, Jianmin; Ma, Keming; Wang, Jifeng; Zhao, Jingzhu; He, Kate
刊名	BIODIVERSITY AND CONSERVATION
	2010-05
卷号	19 期号:5 页码:1279-1295
关键词	Species-area relationship The choros model Habitat heterogeneity Species richness Wetland remnant The Sanjiang Plain NE China
中文摘要	There is an ongoing ecological debate on whether area per se or habitat heterogeneity is the main driver for species richness. The wetland remnants in the Sanjiang Plain, NE China harbor a high biodiversity and play an important role for local ecosystems. Fifty-one wetland remnants were sampled to examine the effect of area and habitat heterogeneity on vascular plant species richness. Number of community types, elevation, water heterogeneity and soil resource heterogeneity were employed as habitat heterogeneity variables, but only water heterogeneity was identified as the proper surrogate for habitat heterogeneity. Compared with the classic species-area model, the choros model achieved better fitness when water heterogeneity and elevation were employed as habitat heterogeneity variables. Nevertheless, elevation was poorly correlated with species richness. It suggests, without a comprehensive analysis of habitat heterogeneity variables, the choros model might result in a misleading result. In this study, species richness was significantly influenced by water heterogeneity, area and number of community types. Water heterogeneity and area both controlled the number of community types, and they were the two main determinants of species richness. As area was significantly and positively correlated with water heterogeneity, the variance in species richness was mainly related to the mutual effect of area and water heterogeneity. The results of this study confirmed that the relationship between the area per se hypothesis and the habitat heterogeneity hypothesis was conjunct rather than mutually exclusive. In addition, it is critical that both area and water heterogeneity should be taken into account for biodiversity conservation and management in wetland remnants.
WOS记录号	WOS:000276485300007
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/21023]
专题	生态环境研究中心_城市与区域生态国家重点实验室
推荐引用方式 GB/T 7714	Shi, Jianmin,Ma, Keming,Wang, Jifeng,et al. Vascular plant species richness on wetland remnants is determined by both area and habitat heterogeneity[J]. BIODIVERSITY AND CONSERVATION,2010,19(5):1279-1295.
APA	Shi, Jianmin,Ma, Keming,Wang, Jifeng,Zhao, Jingzhu,&He, Kate.(2010).Vascular plant species richness on wetland remnants is determined by both area and habitat heterogeneity.BIODIVERSITY AND CONSERVATION,19(5),1279-1295.
MLA	Shi, Jianmin,et al."Vascular plant species richness on wetland remnants is determined by both area and habitat heterogeneity".BIODIVERSITY AND CONSERVATION 19.5(2010):1279-1295.