Spatial Distribution of Benthic Macroinvertebrate Assemblages in Relation to Environmental Variables in Korean Nationwide Streams

Jun, Yung-Chul; Kim, Nanyoung; Kim, Sanghun; Park, Young‐Seuk; Kong, Dongsoo; Hwang, Soon‐Jin

doi:10.3390/w8010027

Cited by 51 publications

(59 citation statements)

References 63 publications

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“…This is reflected in evidence supporting our hypotheses regarding the relationships between land use and the connectance of our co-occurrence networks (H2), and the mean strength of their co-occurrences (H3). Evidence supporting our hypothesis regarding a negative correlation between network size and land use (H1) reflects a well-established link between environmental stress and both the loss of biodiversity and measures of biotic integrity (Freeman & Schorr, 2004;Garie & McIntosh, 1986;Jun et al, 2016Jun et al, , 2011. We find the importance of network size, along with network connectance and co-occurrence strength, reinforces prior observations on the importance of both regional and local measures of environmental quality in BMI communities (Stoll et al, 2016).…”

Section: Discussionsupporting

confidence: 87%

Using co‐occurrence network topology in assessing ecological stress in benthic macroinvertebrate communities

Simons

Mazor

Theroux

2019

Ecology and Evolution

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Ecological monitoring of streams has often focused on assessing the biotic integrity of individual benthic macroinvertebrate (BMI) communities through local measures of diversity, such as taxonomic or functional richness. However, as individual BMI communities are frequently linked by a variety of ecological processes at a regional scale, there is a need to assess biotic integrity of groups of communities at the scale of watersheds. Using 4,619 sampled communities of streambed BMIs, we investigate this question using co‐occurrence networks generated from groups of communities selected within California watersheds under different levels of stress due to upstream land use. Building on a number of arguments in theoretical ecology and network theory, we propose a framework for the assessment of the biotic integrity of watershed‐scale groupings of BMI communities using measures of their co‐occurrence network topology. We found significant correlations between stress, as described by a mean measure of upstream land use within a watershed, and topological measures of co‐occurrence networks such as network size (r = −.81, p < 10–4), connectance (r = .31, p < 10–4), mean co‐occurrence strength (r = .25, p < 10–4), degree heterogeneity (r = −.10, p < 10–4), and modularity (r = .11, p < 10–4). Using these five topological measures, we constructed a linear model of biotic integrity, here a composite of taxonomic and functional diversity known as the California Stream Condition Index, of groups of BMI communities within a watershed. This model can account for 66% of among‐watershed variation in the mean biotic integrity of communities. These observations imply a role for co‐occurrence networks in assessing the current status of biotic integrity for BMI communities, as well as their potential use in assessing other ecological communities.

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Section: Discussionsupporting

confidence: 87%

Using co‐occurrence network topology in assessing ecological stress in benthic macroinvertebrate communities

Simons

Mazor

Theroux

2019

Ecology and Evolution

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“…This study showed that Ephemeroptera dominated the invertebrate composition mainly by Baetidae and though in limited abundance, Heptageniidae was recorded at the sites. This pattern was found in some Asian streams [3]; Leuctridae and Perlodidae were recorded for the presence of Plecoptera while Rhyacophilidae, Hydropsychidae and Limnephilidae composed the Trichoptera. The differences between sites were linked to differences in abundance rather than taxonomically different families.…”

Section: Benthic Macroinvertebrate Communitiessupporting

confidence: 55%

“…Variables associated with altitude reveal local environmental factors which determine the structure and distribution of benthic macroinvertebrate communities [3]. A limited composition of benthic macroinvertebrates accounted for a combination of ultimate (altitude, catchment area and slope) and proximate (BOD, phosphate-P, conductivity and discharge) factors.…”

Section: Physicochemical Variables and The Community Of Benthic Macromentioning

confidence: 99%

“…The relationship between an ecological metric and environmental variables may inform the source of stress or response experienced by an ecological indicator [1]. These relationships have been demonstrated between benthic macroinvertebrate communities and physicochemical variables in various studies [2][3][4]. In the case of urban rivers, the relationships could reveal the effect of multiple stressors collective termed "urban stream syndrome" [5] or by pollution.…”

Section: Introductionmentioning

confidence: 99%

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Distribution of benthic macroinvertebrate communities and assessment of water quality in a small UK river catchment

Medupin

2019

SN Appl. Sci.

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Communities of benthic macroinvertebrates obtained from a river catchment impacted by point source pollution were investigated from March 2013 to April 2014. The main purpose of this study was to describe the taxon richness of benthic macroinvertebrate communities obtained at upstream and downstream of a wastewater treatment works and combined sewer overflows, assess water quality and to determine major physicochemical variables that affect the distribution and richness of benthic macroinvertebrate communities. The biotic index Whalley Hawkes, Paisley and Trigg revealed distinction between the sites upstream of the wastewater treatment works from the downstream sites. Between and within sampling locations, the dominance of certain taxonomic groups was recorded including Oligochaete, Baetidae and Chironomidae. Predominant in the river were insects which constituted 72% of the overall benthic invertebrate communities followed by Oligochaeta (28%). Distribution of benthic macroinvertebrate communities was not associated with sewage variables but related more with altitude, catchment area, slope and discharge. Altitudes range from 31 to 140 m. The sites at higher altitude had better quality compared to the lower sites and therefore suggests that altitude could provide a spatial proxy for anticipated future ecological changes in the river over time. Classification of the river based on the European Union's Water Framework Directive indicated that the river had moderate ecological status.

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“…Jun et al [14] studied nationwide distribution patterns of benthic macroinvertebrates and important environmental factors affecting their spatial distribution using the data obtained from the NAEMP. They classified 720 sampling sites into five clusters according to the pollution levels from fast-flowing, less-polluted streams with low electrical conductivity to moderately or severely polluted streams with high electrical conductivity and low water velocity.…”

Section: Contributionsmentioning

confidence: 99%

Ecological Monitoring, Assessment, and Management in Freshwater Systems

Park

Hwang

2016

Water

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Ecological monitoring and assessment is fundamental for effective management of ecosystems. As an introduction to this Special Issue, this editorial provides an overview of "Ecological Monitoring, Assessment, and Management in Freshwater Systems". This issue contains a review article on monitoring surface waters, and research papers on data management, biological assessment of aquatic ecosystems, water quality assessment, effects of land use on aquatic ecosystems, etc. The papers in this issue contribute to the existing scientific knowledge of freshwater ecology. They also contribute to the development of more reliable biological monitoring and assessment methods for sustainable freshwater ecosystems and ecologically acceptable decision-making policies, and establishment of practices for effective ecosystem management and conservation.

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Spatial Distribution of Benthic Macroinvertebrate Assemblages in Relation to Environmental Variables in Korean Nationwide Streams

Cited by 51 publications

References 63 publications

Using co‐occurrence network topology in assessing ecological stress in benthic macroinvertebrate communities

Using co‐occurrence network topology in assessing ecological stress in benthic macroinvertebrate communities

Distribution of benthic macroinvertebrate communities and assessment of water quality in a small UK river catchment

Ecological Monitoring, Assessment, and Management in Freshwater Systems

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