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Spider populations and their response to different habitat types

机译：蜘蛛种群及其对不同生境类型的反应

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The composition of a spider population in terms of species and numbers is influenced by many environmental factors. Examples of faunal differences between simple, uniform habitats and those which are much more diverse are discussed. This paper examines the characteristics of populations in different habitat types, some stable and others subject to use which causes disturbance. When adequate and accurate samples are taken of spider populations in a denned habitat it is usual to find a few Abundant species, a large number of Scarce, and a third category which is classified as Frequent. The species-numbers relationship can then be illustrated by calculating the proportion of the total population represented in each of the three groups. When graphed, an L-shaped curve is produced, which varies according to the structure and environmental conditions of the habitat, as well as to the sampling method used. A number of examples are described, and possible ecological interpretations are discussed.
机译：在物种和数量方面，蜘蛛种群的组成受到许多环境因素的影响。讨论了简单，统一的生境和种类繁多的生境之间动物区系差异的例子。本文研究了不同生境类型（一些稳定的物种和其他可能会造成干扰的物种）的种群特征。当在狭窄的栖息地中对蜘蛛种群进行足够而准确的采样时，通常会发现一些丰富的物种，大量的稀缺物种以及第三类，它们被归类为“频繁”。然后，可以通过计算三组中每组中代表的总种群的比例来说明物种-数量关系。绘制时，会产生一条L形曲线，该曲线会根据栖息地的结构和环境条件以及所使用的采样方法而变化。描述了许多示例，并讨论了可能的生态学解释。

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