DOES INVASION SEQUENCE AFFECT COMMUNITY STRUCTURE
DOES INVASION SEQUENCE AFFECT COMMUNITY STRUCTURE
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DOI：
10.2307/1938464
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发表时间：
1987-06-01
期刊：
影响因子：
4.8
通讯作者：
DICKERSON, JE
中科院分区：
文献类型：
--
作者：
ROBINSON, JV;DICKERSON, JE
利用水生微生态系统评价了入侵序列对群落结构的影响。将来自绿藻、蓝绿藻和金藻、纤毛虫、轮虫、鞭毛藻和拟绿藻组成的物种池的复制亚群接种到30个400 ml的烧杯中。在23周的时间内，根据4种不同的序列和2种不同的速率添加这些物种，产生了4组复制的岛屿群落。群落结构和物种丰富度的显著差异可归因于入侵顺序和距离效应。“优先”效应在某些情况下很重要，但并非所有情况都如此。群落可分为两种主要类型，这两种类型类似于以前报道的同一分类群根据不同的入侵时间表聚集而产生的两种群落类型。
The effects of invasion sequence on community structures were evaluated using aquatic microcosms. Thirty 400-mL beakers were inoculated with replicated subsets of species from a species pool consisting of green, blue-green, and golden algae, ciliates, a rotifer, a dinoflagellate, and euglenoids. These species were added according to four distinct sequences and two different rates over a 23-wk period, resulting in four replicated sets of insular communities. Significant differences in community structure and species richness could be attributed to both sequence of invasion and distance effects. "Priority" effects were found to be important in some but not all instances. Communities could be divided into two primary types that are similar to the two community types previously reported to arise from the assembly of these same taxa according to different invasion schedules.