Assessing Benthic Macroinvertebrates in Relations to Environmental Variables and Revitalisation Works

I. Czerniawska-Kusza
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引用次数: 2

Abstract

Abstract Macroinvertebrates of two ex-manor ponds located in Chroscina, Opole Region (Poland) were studied from 2015 to 2018 to investigate their community composition and diversity and evaluate the heterogeneity of communities on spatial and temporal scale referring to environmental variables and revitalisation work. A total of 32 taxa were recorded (at the family level, except Oligochaeta), 13 of which were Ephemeroptera, Odonata and Trichoptera, recognised as sensitive groups in lentic ecosystems. Macroinvertebrate richness and diversity varied considerably, especially in spring and summer. It was found that habitat heterogeneity influenced benthic invertebrates more than basic water parameters. However, the environmental variables together accounted for only 38 % of the observed variations. Thus, other factors, such as fish predation, may have played a leading role in community shaping. The distinct differences between pond communities, four years after the revitalisation works, resulted more from different habitat features than from the previous sediment removal.
评估底栖大型无脊椎动物与环境变数及活化工程的关系
2015年至2018年,对波兰奥波莱地区Chroscina的两个前庄园池塘的大型无脊椎动物进行了研究,研究了它们的群落组成和多样性,并根据环境变量和活化工作评估了群落的时空异质性。共记录到32个分类群(除寡毛目外),其中被认为是生态系统敏感类群的Ephemeroptera、Odonata和Trichoptera 13个。大型无脊椎动物的丰富度和多样性变化较大,特别是在春季和夏季。生境异质性对底栖无脊椎动物的影响大于基本水体参数。然而,环境变量加起来只占观察到的变化的38%。因此,其他因素,如鱼类捕食,可能在群落形成中发挥了主导作用。在活化工程进行四年后,池塘群落之间的明显差异,更多是由于不同的生境特征,而不是由于先前的沉积物清除。
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