Species abundance distribution of benthic chironomids and other macroinvertebrates across different levels of pollution in streams

Abstract

-Chironomid assemblages collected from seven different streams in South Korea were investigated. The subfamily composition of chironomids was clearly differentiated accross different levels of organic pollution. Species abundance distributions (SADs) of chironomid communities were compared with the total macroinvertebrate communities across different levels of pollution. The number of species with minimal range of abundance was lower in SADs for chironomid communities compared with total communities. The log normal distribution was accepted for both total and chironomid communities, while the geometric series was relatively more suitable for chironomids and the log series were more fitted to total communities. The a values in the log normal distribution increased in chironomid communities across different levels of pollution, while c values increased at the polluted sites for both chironomid and total communities. In the Power law analysis, the parameter decreased in chironomid communities. The dominance decay model was more fitted to chironomid communities in clean conditions while random fraction and assortment models were more suitable for the polluted sites.

Effects of Land Use Types on Community Structure Patterns of Benthic Macroinvertebrates in Streams of Urban Areas in the South of the Korea Peninsula

“…Various parameters of these models (e.g., k values in the geometric series, a and γ values in the log-normal distribution) have been used as indicators for community structure [28,49,50]. In this study, we extended the scope of RADs so that it would offer more information on community structure [21,27].…”

Self-organizing map and species abundance distribution of stream benthic macroinvertebrates in revealing community patterns in different seasons

“…While community parameters (i.e., diversity, similarity) provide only limited information on community as single indices, SADs can provide information on the structure property of communities using two dimensions on rank and abundance of species. Since Raunkiaer (1909) and Motomura (1932) first used SAD to evaluate structures of communities, a large number of studies on SAD have been reported on various taxa including terrestrial plants (Forster and Warton, 2007), terrestrial animals (Ford and Lancaster, 2007) and freshwater macroinvertebrate communities (Qu et al, 2008;Tang et al, 2010).…”

“…With regard to marine benthic communities, variation in the log normal distribution in SADs was reported when detecting pollution induced changes, towards a geometric series (Gray and Mirza, 1979). SADs have been further dealt in revealing the states of communities of benthic macroinvertebrates in fresh water across different levels of pollution (Qu et al, 2008;Tang et al, 2010).…”

Larvae of Chironomidae family (Diptera, Insecta) in Southern Morava river basin and their application in assessing the ecological status of lotic systems

“…СОМ се прво користио за одређивање просторне и временске дистрибуције бентосних заједница макроинвертебрата (Chon et al, 1996). Од тада велики број аутора користи СОМ за ординацију и класификацију, предикцију и моделовање података у различитим аспектима истраживања бентосних макроинвертебрата (Chon et al, 2000;Verdonschot, 2005;Tang et al, 2010;Chon, 2011). СОМ анализа је такође била коришћена за моделовање динамике ларви хирономида на различитим профилима станишта .…”

“…The SOM was first used in pattering the benthic community by Chon et al (1996). Since then, many authors have used SOM for clustering, classification, estimation, prediction, and data mining in various aspects of benthic macroinvertebrate research (Chon et al 2000;Verdonschot 2005;Tang et al 2010;Chon 2011). The SOM has also been used for the analysis of chironomid assemblages in various habitats and for the presentation of the assemblage patterns .…”