Community patterns of benthic macroinvertebrates collected on the national scale in Korea

Young-Seuk Park, Mi-Young Song, Young-Cheol Park, Kyung-Hee Oh, Eungchun Cho and Tae-Soo Chon

Ecological Modelling, 2007, vol. 203, issue 1, 26-33

Abstract: From 1997 to 2002, benthic macroinvertebrates were collected with a Surber sampler from the 1970 sampling sites from clean to intermediately polluted areas in streams in Korea. The Self-Organizing Map (SOM) was used for patterning and visualizing community patterns of macroinvertebrates collected on the national scale. The SOM accordingly classified the samples to eight groups of communities, and the groups firstly corresponded to the geographical regions of the sampling sites, distinguishing the samples from mountain streams with high species richness from the samples from lowland areas with low species richness. Relations between species richness and abundance showed three patterns according to the SOM groups: (1) high species richness and high abundance in the clean area, (2) intermediate species richness and high abundance in intermediately polluted area, and (3) low species richness and low abundance in severely damaged area. Biological indices (Shannon diversity index, evenness, EPT richness, EPT abundance, and BMWP score) were also accordingly differentiated among the different clusters. The clustered communities were correspondingly related to the patterns of species richness and abundance, and the trained SOM appears to be efficient in defining the patterns of ecoregions.

Keywords: Benthic community; Species richness; Abundance; Community classification; Regional classification (search for similar items in EconPapers)
Date: 2007
References: View complete reference list from CitEc
Citations: View citations in EconPapers (5)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0304380006005552
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:ecomod:v:203:y:2007:i:1:p:26-33

DOI: 10.1016/j.ecolmodel.2006.04.032

Access Statistics for this article

Ecological Modelling is currently edited by Brian D. Fath

More articles in Ecological Modelling from Elsevier
Bibliographic data for series maintained by Catherine Liu ().