应用生态学报2012，Vol.23Issue(9)：2550-2558,9.
淀山湖浮游植物优势种生态位
Niche analysis of phytoplankton' s dominant species in Dianshan Lake of East China
摘要
Abstract
By using modified Levins and Petraitis formulae, this paper determined the niche breadth and niche overlap of the phytoplankton' s dominant species in Dianshan Lake of East China, and analyzed the relationships between the niche breadth and niche overlap and the density and dominance of the dominant species. The niche breadth and niche overlap of the dominant species differed in different periods, and different dominant species had different adaptive capacity to the environmental factors. Based on their niche breadth in different seasons, the dominant species in the Lake could be classified into four groups, among which, Chroomonas acuta and Chlorella vulgaris had broader niche, more quantity, wider distribution, and better use of environmental resources. During cyanobacterial blooms, the niche overlap among Cyanophyta species was comparatively higher, Microcystis aeruginosa had broader niche breadth, but other species showed lower niche breadth. Correlation analysis showed that the dominance of the dominant species in different seasons had significant correlation with their niche breadth, and the dominant species density had significant correlation with their niche overlap.关键词
浮游植物/优势种/生态位宽度/生态位重叠/淀山湖Key words
phytoplankton/dominant species/niche breadth/niche overlap/Dianshan Lake分类
生物科学引用本文复制引用
徐春燕,俞秋佳,徐凤洁,胡雪芹,由文辉..淀山湖浮游植物优势种生态位[J].应用生态学报,2012,23(9):2550-2558,9.基金项目
上海市科委科技项目(08DZ1203102,08DZ1203002,08DZ1203101)资助. （08DZ1203102,08DZ1203002,08DZ1203101）
