Role of Stream Restoration on Improving Benthic Macroinvertebrates and In-Stream Water Quality in an Urban Watershed: Case Study

Selvakumar, Ariamalar; O’Connor, Thomas P.; Struck, Scott D.

doi:10.1061/(asce)ee.1943-7870.0000116

Cited by 41 publications

(31 citation statements)

References 8 publications

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“…Similarly, if the hydrologic regime is restored but there is no nearby source of invertebrate colonists, then the in-stream communities will remain unrestored (Sundermann et al 2011). Finally, an over-reliance on channel design may obfuscate efforts to identify the factor that most limits recovery of a stream; quite often this factor is water quality, and thus ecological recovery will not occur until the source of pollutants is removed (Kail et al 2012, Selvakumar et al 2010).…”

Section: Restoration As Channel Designmentioning

confidence: 99%

Ecological Restoration of Streams and Rivers: Shifting Strategies and Shifting Goals

Palmer

Hondula²,

Koch

2014

Annu. Rev. Ecol. Evol. Syst.

385

297

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Ecological restoration has grown rapidly and now encompasses not only classic ecological theory but also utilitarian concerns, such as preparedness for climate change and provisioning of ecosystem services. Three dominant perspectives compete to influence the science and practice of river restoration. A strong focus on channel morphology has led to approaches that involve major Earth-moving activities, such as channel reconfiguration with the unmet assumption that ecological recovery will follow. Functional perspectives of river restoration aim to regain the full suite of biogeochemical, ecological, and hydrogeomorphic processes that make up a healthy river, and though there is well-accepted theory to support this, research on methods to implement and assess functional restoration projects is in its infancy. A plethora of new studies worldwide provide data on why and how rivers are being restored as well as the project outcomes. Measurable improvements postrestoration vary by restoration method and measure of outcome.

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Section: Restoration As Channel Designmentioning

confidence: 99%

Ecological Restoration of Streams and Rivers: Shifting Strategies and Shifting Goals

Palmer

Hondula²,

Koch

2014

Annu. Rev. Ecol. Evol. Syst.

385

297

View full text Add to dashboard Cite

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“…Similarly, O’Connor (1991) found that woody debris additions increased habitat heterogeneity and macroinvertebrate species richness in an Australian lowland stream. Selvakumar et al (2010) also found slight increases in several community metrics including HBI and EPT taxa 2 years after restoring an urban stream in Virginia, although the metrics indicated that water quality remained impaired. Other studies noted significant changes in at least some aspect of community health following changes in geomorphology or pool formation (Miller et al 2009); however, a meta‐analysis of 24 studies indicated that invertebrate community responses to stream restoration were weakest in channel‐modification restorations (Miller et al 2009).…”

Section: Discussionmentioning

confidence: 89%

Natural‐Channel‐Design Restorations That Changed Geomorphology Have Little Effect on Macroinvertebrate Communities in Headwater Streams

Ernst

Warren

Baldigo

2011

Restoration Ecology

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Stream restorations that increase geomorphic stability can improve habitat quality, which should benefit selected species and local aquatic ecosystems. This assumption is often used to define primary restoration goals; yet, biological responses to restoration are rarely monitored or evaluated methodically. Macroinvertebrate communities were inventoried at 6 study reaches within 5 Catskill Mountain streams between 2002 and 2006 to characterize their responses to natural-channel-design (NCD) restoration. Although bank stability increased significantly at most restored reaches, analyses of variation showed that NCD restorations had no significant effect on 15 of 16 macroinvertebrate community metrics. Multidimensional scaling ordination indicated that communities from all reach types within a stream were much more similar to each other within any given year than they were in the same reaches across years or within any type of reach across streams. These findings indicate that source populations and watershed-scale factors were more important to macroinvertebrate community characteristics than were changes in channel geomorphology associated with NCD restoration. Furthermore, the response of macroinvertebrates to restoration cannot always be used to infer the response of other stream biota to restoration. Thus, a broad perspective is needed to characterize and evaluate the full range of effects that restoration can have on stream ecosystems.

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“…For the sequential process, removal of the disturbance factor should be followed by active restoration of necessary ecological structure (Kauffman et al, 1997), and furthermore, continuous monitoring for the effectiveness of restoration has to be implemented that have not been performed in most restoration projects (Selvakumar et al, 2010;Whiteway et al, 2010). Multi-dimensional restoration planning can be found when observing the biodiversity perspective: i.e., not only biological components but also habitats and connectivity need to be considered simultaneously, and the strategies for restoration or conservation of habitats should be distinguished from each other (Roni et al, 2002).…”

Section: Stream Restoration Strategy and Smi Applicationmentioning

confidence: 99%

Current status of Korean streams and exploring areas with high necessity for stream structure restoration

Jeong

Kim²,

Jeong

et al. 2011

Ann. Limnol. - Int. J. Lim.

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-Stream restoration is an important process affecting the ecological health of stream ecosystems. There have been numerous cases of restoration, dealing with either structural or biological changes. In Korea, most restoration projects have merely dealt with improving hydrological characteristics or water quality; however, in recent years the improvement of ecological characteristics has been an increasing focus for restoration projects. In this study, we utilized data collected from 5675 stream sites in May 2007 to discover general patterns of anthropogenic modification in Korean streams. The survey results after application of the stream modification index (SMI; presence or absence type; high scores indicate more disturbed) provided a general distribution of disturbed/undisturbed streams or rivers in the watershed. We then compared the level of modification with the socio-geographical patterns (population, land coverage, elevation, and slope) for the watershed. The results show that streams in highly populated areas suffered from human modification compared with other well-preserved stream sites. In metropolitan cities, urbanized areas had positive relationship as identified by a high SMI. On the other hand, agricultural land cover identified an SMI increase for lowland river area. In general, mountainous streams possessed a better status in stream morphology due to different land-cover patterns (i.e., mainly forested area); however, some mountainous areas were impacted by concentrated summer rainfall. We could distinguish the forcing variables (i.e., land use pattern) for the disturbed streams through a comparison between the SMI and geographical information; the SMI application was able to identify areas of high necessity for restoration.

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Role of Stream Restoration on Improving Benthic Macroinvertebrates and In-Stream Water Quality in an Urban Watershed: Case Study

Cited by 41 publications

References 8 publications

Ecological Restoration of Streams and Rivers: Shifting Strategies and Shifting Goals

Ecological Restoration of Streams and Rivers: Shifting Strategies and Shifting Goals

Natural‐Channel‐Design Restorations That Changed Geomorphology Have Little Effect on Macroinvertebrate Communities in Headwater Streams

Current status of Korean streams and exploring areas with high necessity for stream structure restoration

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