Urban streams across the USA: lessons learned from studies in 9 metropolitan areas

Brown, Larry R.; Cuffney, Thomas F.; Coles, James F.; Fitzpatrick, Faith A.; McMahon, Gerard; Steuer, Jeffrey J.; Bell, Amanda H.; May, Jason T.

doi:10.1899/08-153.1

Cited by 179 publications

(154 citation statements)

References 69 publications

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“…Allan (2004) suggested that silty sediments may limit the ability of algal accumulation in urban (Walsh 2004). Urban streams are characterised by a community of tolerant taxa (Helms et al 2009), and these results are consistent with those described elsewhere (Brown et al 2009;Ramı´rez et al 2009). Stepenuck et al (2002 assessed invertebrate communities in response to changes in urbanisation and water quality and a decrease in functional feeding groups (shredders, collectors and predators) generally associated with allochthonous resources.…”

Section: Discussionsupporting

confidence: 75%

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Assessing the local effects of riparian restoration on urban streams

Thompson

Parkinson

2011

New Zealand Journal of Marine and Freshwater Research

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Riparian zones mediate chemical and biological exchanges between streams and the terrestrial environment. In urban systems, these zones are often heavily modified by removal of native vegetation and bank disruption. Management agencies have made considerable investments into restoring riparian vegetation through replanting. We investigated the potential for riparian plantings to restore invertebrate communities, by comparing open and forested (replanted) reaches over winter within three urban streams in Melbourne, Australia. Clear differences in aquatic habitats, food resources and fauna were evident between reaches. Algal biomass on artificial substrates did not differ significantly between reaches. Open reaches had higher abundances of taxa reliant on autochthonous production as the primary food resources (e.g. gastropods, chironomids and oligochaetes), while forested reaches displayed a higher diversity of invertebrate taxa associated with allochthonous resources. We conclude that riparian plantings may have some positive effects on streams, even without broader catchment improvements in water quality and hydrology.

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Section: Discussionsupporting

confidence: 75%

“…Brown et al 2009;Ramı´rez et al 2009). Banks were heavily incised and substrates were dominated by fine silts, with little retention of organic matter apparent as accumulations of leaf litter or snags (Parkinson pers.…”

Section: Discussionmentioning

confidence: 99%

Assessing the local effects of riparian restoration on urban streams

Thompson

Parkinson

2011

New Zealand Journal of Marine and Freshwater Research

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“…Influence of site factors such as habitat structure on fish assemblages has been investigated extensively (Schlosser, 1982;Harding et al, 1998;Brown et al, 2009). The structure of stream fish assemblages has been related to numerous site variables, such as bottom type and cover (Angermeier & Winston, 1998), and bottom, depth, and current (Gorman & Karr, 1978).…”

Section: Discussionmentioning

confidence: 99%

“…Moreover, local habitat conditions are directly or indirectly affected by catchment conditions, including land use changes (e.g., Sály et al, 2011;Marzin et al, 2012;Macedo et al, 2014). Local habitat conditions are a fundamental factor for determining the structure and composition of stream biota (Schlosser, 1982;Rosenzweig, 1995;Harding et al, 1998;Brown et al, 2009). For example, fish assemblages are strongly influenced by site channel structure and hydraulic conditions, such as substrate, canopy shading, fish cover, wetted width, depth variation, and slope (Gorman & Karr, 1978;Wang et al, 1998;.…”

Section: Introductionmentioning

confidence: 99%

Influence of environmental variables on stream fish fauna at multiple spatial scales

et al. 2016

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Effects of environmental variables at different spatial scales on freshwater fish assemblages are relatively unexplored in Neotropical ecosystems. However, those influences are important for developing management strategies to conserve fish diversity and water resources. We evaluated the influences of site-(in-stream) and catchment-scale (land use and cover) environmental variables on the abundance and occurrence of fish species in streams of the Upper Araguari River basin through use of variance partitioning with partial CCA. We sampled 38 1 st to 3 rd order stream sites in September 2009. We quantified site variables to calculate 11 physical habitat metrics and mapped catchment land use/cover. Site and catchment variables explained > 50% of the total variation in fish species. Site variables (fish abundance: 25.31%; occurrence: 24.51%) explained slightly more variation in fish species than catchment land use/cover (abundance: 22.69%; occurrence: 18.90%), indicating that factors at both scales are important. Because anthropogenic pressures at site and catchment scales both affect stream fish in the Upper Araguari River basin, both must be considered jointly to apply conservation strategies in an efficient manner.Os efeitos das variáveis ambientais em diferentes escalas espaciais sobre as assembleias de peixes de água doce ainda é um tema pouco explorado na região Neotropical. Entretanto é um assunto de extrema relevância, pois gera subsídios para definições de estratégias de manejo e conservação de ictiofauna e dos recursos hídricos. Nós avaliamos a influência de variáveis ambientais em escalas local (dentro do rio) e da paisagem (uso e cobertura do solo) na abundância e ocorrência das espécies de peixes de riachos da bacia do alto rio Araguari através da partição da variância usando CCA parcial. Um total de 38 riachos de até 3ª ordem foi amostrado em setembro de 2009. Nós quantificamos variáveis locais para calcular 11 métricas de hábitats físicos e mapeamos o uso e cobertura do solo. O conjunto de dados (variáveis locais e da paisagem) explicou mais de 50% da variação total nas espécies de peixes. Variáveis em escala local (abundância: 25,31%; ocorrência: 24,51%) explicaram levemente uma maior variação nas assembleias de peixes do que o uso e cobertura do solo (abundância: 22,69%; ocorrência: 18,90%), indicando que os fatores em ambas as escalas de estudo são importantes. Uma vez que a influência antrópica em diferentes escalas afeta as espécies de peixes em riachos da bacia do alto rio Araguari, ambas devem ser consideradas juntamente para a adoção de estratégias de conservação de uma forma racional. Keywords IntroductionStreams are hierarchically organized and spatially nested systems (Frissell et al., 1986 in which conditions at smaller spatial scales are constrained by processes at larger spatial scales (O'Neill et al., 1989). In other words, site conditions are influenced by regional conditions (Hildrew & Giller, 1994), and different variables may act at different scales (Willis & Whittaker, 2002). Some...

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“…Similarly, a recent New Zealand study illustrated how different water quality, macroinvertebrate and fish indicators varied in their responses to land-use stressors (Clapcott et al, 2012). Comparable studies suggest that the assessment of multiple groups of organisms has the potential to provide a more robust evaluation of ecological integrity than the assessment of a single group (Brown et al, 2009;Waite, 2014). Our goal was to combine multiple indicators of stream health into a MMI to provide a more holistic measure of EI than the use of individual indicators.…”

Section: Introductionmentioning

confidence: 99%

A multimetric approach for predicting the ecological integrity of New Zealand streams

Clapcott

Goodwin

Young

et al. 2014

Knowl. Managt. Aquatic Ecosyst.

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Integrating multiple measures of stream health into a combined metric can provide a holistic assessment of the ecological integrity of a stream. The aim of this study was to develop a multimetric index (MMI) of stream integrity based on predictive modelling of national data sets of water quality, macroinvertebrates, fish and ecosystem process metrics. We used a boosted regression tree approach to calculate an observed/expected score for each metric prior to combining metrics in a MMI based on data availability and the strength of predictive models. The resulting MMI provides a geographically meaningful prediction of the ecological integrity of rivers in New Zealand, but identifies limitations in data and approach, providing focus for ongoing research. RÉSUMÉUne approche multimétrique pour prédire l'intégrité écologique des cours d'eau en Nouvelle-Zélande Mots-clés :indice multimétrique, intégrité écologique, santé des cours d'eau, arbres de décision stimulés, NouvelleZélande L'intégration de plusieurs mesures de la santé des cours d'eau dans une métrique combinée peut fournir une évaluation globale de l'intégrité écologique d'un cours d'eau. Le but de cette étude était de développer un indice multimétrique (MMI) de l'intégrité des rivières basé sur la modélisation prédictive des ensembles de données nationales de métrologie de la qualité de l'eau, des macro-invertébrés, des poissons et des processus de l'écosystème. Nous avons utilisé une approche par l'arbre de décision stimulé pour calculer un score observé / prévu pour chaque métrique avant de combiner les paramètres dans une MMI basée sur la disponibilité des données et la force de modèles prédictifs. Le MMI résultant fournit une prédiction géographique significative de l'intégrité écologique des rivières en Nouvelle-Zélande, mais identifie les limites des données et de l'approche, et donne une orientation à la recherche en cours.

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Urban streams across the USA: lessons learned from studies in 9 metropolitan areas

Cited by 179 publications

References 69 publications

Assessing the local effects of riparian restoration on urban streams

Assessing the local effects of riparian restoration on urban streams

Influence of environmental variables on stream fish fauna at multiple spatial scales

A multimetric approach for predicting the ecological integrity of New Zealand streams

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