Issue |
Ann. Limnol. - Int. J. Lim.
Volume 46, Number 1, 2010
|
|
---|---|---|
Page(s) | 53 - 66 | |
DOI | https://doi.org/10.1051/limn/2009031 | |
Published online | 15 December 2009 |
Species abundance distribution of benthic chironomids and other macroinvertebrates across different levels of pollution in streams
1
Department of Biological Sciences, Pusan National University, Busan (Pusan) 609-735, Republic of Korea
2
West Sea Fisheries Research Institute, Incheon 400-420, Republic of Korea
3
Department of Biology, Kyung Hee University, Dongdaemun, Seoul 130-701, Republic of Korea
Corresponding author: tschon@pusan.ac.kr
Received:
22
October
2009
Accepted:
4
November
2009
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 γ 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.
Key words: Chironomid / species abundance distribution / macroinvertebrates / log normal distribution / power law analysis / random fraction / random assortment / dominance decay
© EDP Sciences, 2009
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.