A sensitivity analysis of nine diversity and seven similarity indices
A sensitivity analysis of nine diversity and seven similarity indices
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发表时间：
1990
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通讯作者：
Terrence P. Boyle;Gary M. Smillie;Jana C. Anderson;D. Beeson
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作者：
Terrence P. Boyle;Gary M. Smillie;Jana C. Anderson;D. Beeson
总结群落结构的指数被用来评价基本群落生态学、物种相互作用、生物地理图形因子和环境胁迫。其中一些指数对污染污染物引起的群落总体变化不敏感。利用计算机模拟技术对水质研究中常用的16个评价水生群落状况的指标进行了评价，以确定特定的指标响应。利用对数正态方程生成了3种不同初始结构的群落(19种、38种、83种)。然后，每个群落以三种方式受到干扰：常见物种不成比例地减少，所有物种按比例减少，稀有物种按比例减少。对指数的行为进行了图形分析，并记录了由于初始社区结构和社区变化类型而产生的差异响应。利用社区水平指数提出了一些潜在误差源的建议。资源J.水污染。《控制美联储》，62,749(1990)。
Indices summarizing community structure are used to evaluate fundamental community ecology, species interaction, biogeo graphical factors, and environmental stress. Some of these indices are insensitive to gross community changes induced by contaminants of pollution. Sixteen indices commonly used to assess the status of aquatic com munities in water quality studies were evaluated using computer simu lation techniques to determine specific index responses. Three com munities of different initial structure (19 species, 38 species, and 83 species) were generated using the lognormal equation. Each community was then perturbed in three ways: common species disproportionally reduced, all species proportionally reduced, and rare species dispropor tionally reduced. The behavior of the indices was analyzed graphically and differential response due to initial community structure and type of community change was documented. Some recommendations of poten tial sources of error using community level indices were developed. Res. J. Water Pollut. Control Fed., 62, 749 ( 1990).