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http://dx.doi.org/10.17663/JWR.2022.24.3.185

Ecological Characteristics of Benthic Macroinvertebrates according to Stream Order and Habitat - Focused on the Ecological Landscape Conservation Area -  

Hwang, In Chul (Dept. of Biotechnology, Hanseo University)
Kwon, Soon Jik (The Korean association for survey and assessment ecosystem)
Park, Young Jun (National Institude of Ecology)
Park, Jin Young (National Institude of Ecology)
Publication Information
Journal of Wetlands Research / v.24, no.3, 2022 , pp. 185-195 More about this Journal
Abstract
This study conducted a survey over spring and autumn from 2014 to 2020 to confirm the ecological characteristics of the size of streams and habitats, centering on the ecological landscape conservation area, and a total 256 species of benthic macroinvertebrates in 105 families, 25 orders, 8 classes, and 5 phyla appeared. In terms of appearance species, by region, the rate of appearance of Ephemeroptera and Trichoptera was high in regions consisting of lotic area and the rate of appearance of Coleoptera and Odonata was high in regions consisting of lentic areas. When comparing the population of Ephemeroptera-Plecoptera-Trichoptera (EPT) groups by region, they were classified into three groups: upstream area, mainstream area, and lentic areas, and it was confirmed that the population ratio of EPT changed as it moved from upstream to downstream. As the stream order increased, the number of species and populations increased. The Shredder group (SH) tended to decrease as the size of stream increased(r=0.9925), and the Collector-Filtering (CF) tended to increase as the size of stream increased(r=0.9319). It was confirmed that the Scraper (SC) replaced each other between species with the same ecological status as it went downstream from upstream, and it is thought that the SC did not differ significantly by stream order. In order to maintain a healthy ecosystem in the designation and management of ecological landscape conservation areas, it is necessary to consider ecological factors such as competition and physico-chemistry factors such as water quality and substrate conditions. Therefore, if the competent authority designated survey areas including buffer areas that include streams and physical habitats of various sizes, it will be advantageous to the conservative area and securing more biological resources.
Keywords
Ecological Landscape Conservation Area; Benthic Macroinvertebrate; Stream Order; Functional Feeding Groups;
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Times Cited By KSCI : 1  (Citation Analysis)
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