Geographically isolated wetlands and intermittent/ephemeral streams in Montana : extent, distribution, and function

Vance, Linda K.

doi:10.5962/bhl.title.51000

Cited by 11 publications

(9 citation statements)

References 7 publications

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“…perennial streams in the basin (Caruso and Haynes, 2011), which has also been found in a number of other areas (Vance, 2009;Fritz et al, 2013). Our study using the NHD high-resolution data also showed that almost half the reaches in Cement…”

Section: Discussionsupporting

confidence: 84%

“…In the Southern Rockies Ecoregion perennial streams comprise more than half of total stream length and intermittent streams make up the remainder (Caruso and Haynes, ). Using high‐resolution NHD data, Vance () found that in mountain ecoregions in Montana perennial streams ranged from 35 to 53% of all mapped streams, intermittent reaches accounted for 17 to 26%, and ephemeral streams ranged from 30 to 39%. Caruso and Haynes () showed that in the Upper Colorado River Basin, where Cement Creek is located, >50% of reaches are intermittent first order, and 9% are perennial first order based on the medium‐resolution data.…”

Section: Discussionmentioning

confidence: 99%

“…Caruso and Haynes () showed that in the Upper Colorado River Basin, where Cement Creek is located, >50% of reaches are intermittent first order, and 9% are perennial first order based on the medium‐resolution data. However, the high‐resolution data resulted in a significantly higher percentage of intermittent and ephemeral streams than perennial streams in the basin (Caruso and Haynes, ), which has also been found in a number of other areas (Vance, ; Fritz et al ., ). Our study using the NHD high‐resolution data also showed that almost half the reaches in Cement Creek are ephemeral and that both ephemeral and intermittent reaches constitute almost two‐thirds of all streams.…”

Section: Discussionmentioning

confidence: 99%

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GIS‐Based Stream Classification in a Mountain Watershed for Jurisdictional Evaluation

Caruso

2014

J American Water Resour Assoc

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This study analyzed stream characteristics in a mountain watershed in southwestern Colorado and developed a three‐level hierarchical classification scheme using national datasets to demonstrate jurisdictional evaluation as “waters of the United States (U.S.)” under U.S. Clean Water Act Section 404 at the watershed scale. The National Hydrography Dataset and USGS StreamStats were used with field observations to classify streams in the 53 km2 Cement Creek Watershed based on flow duration (Level 1), stream order (Level 2), and other biophysical metrics (Level 3). Kruskal‐Wallis tests and discriminant analysis showed significant differences among Level 2 classes. Level 3 classification used cluster analysis for stream length, distance to the downstream traditional navigable water (TNW), and the ratio of mean annual flow from the source stream to the TNW. Results showed all perennial and intermittent streams are jurisdictional relatively permanent waters (RPWs), which include over a third of all streams, 64% are intermittent or ephemeral, and almost half are ephemeral first order. All ephemeral reaches are non‐RPWs requiring significant nexus evaluation to determine jurisdiction. These ephemeral first‐order streams can contribute 5% of the annual flow to the TNW at the confluence, while the Cement Creek main stem contributes 21% of the TNW flow. The study demonstrated that the classification provides key biophysical and regulatory information to aid jurisdictional evaluations in mountain watersheds.

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Section: Discussionsupporting

confidence: 84%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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GIS‐Based Stream Classification in a Mountain Watershed for Jurisdictional Evaluation

Caruso

2014

J American Water Resour Assoc

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“…Even with the range of differences or errors above, the classifications of perennial and intermittent streams are generally considered satisfactory by USGS (Simley, 2007; Vance, 2009), and the 1:100,000 scale data are often used in national and regional‐scale studies (Nadeau and Rains, 2007; Levick et al. , 2008).…”

Section: Discussionmentioning

confidence: 99%

Biophysical-Regulatory Classification and Profiling of Streams Across Management Units and Ecoregions1

Caruso¹,

Haynes²

2011

JAWRA Journal of the American Water Resources Association

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Aquatic resources management in the United States (U.S.) under Clean Water Act Section 404 has become more complex after recent Supreme Court decisions and U.S. Army Corps of Engineers and Environmental Protection Agency (USEPA) guidance. Many intermittent ⁄ ephemeral and headwater streams may not be jurisdictional if they lack a significant nexus with navigable waters. Streams in semiarid USEPA Region 8 were classified based on hydrologic permanence and stream order using National Hydrography Dataset (NHD) Plus and GIS to provide information across broad spatial scales to aid with jurisdictional determinations (JDs). Four classes were developed for profiling across management units and ecoregions. Based on medium-resolution NHDPlus data, intermittent streams comprise > 3 /4, and first order streams constitute >½ of the total stream length in Region 8. Mountain states and ecoregions have the largest percentage of perennial first order streams, whereas the Dakotas, plains, and desert ecoregions have the greatest percentages of intermittent first order and intermittent higher order streams. In the Upper Colorado River Basin, >50% of reaches are intermittent first order, and 9% are perennial first order. NHDPlus data can significantly underestimate the length of headwater and intermittent streams, but can still be a valuable tool to help develop stream classes and for regional JD planning and analysis. Refinement of the stream classes using high resolution NHD data and other key catchment parameters can improve their utility for JDs.(KEY TERMS: stream order; classification; intermittent; ephemeral; perennial; headwaters.) Caruso, Brian S.

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“…Son zonas de transición entre los ambientes terrestres y acuáticos y constituyen un vínculo dinámico entre ambos sistemas (Mitsch y Gosselink 2007). A grandes rasgos, pueden subdividirse en dos grupos (Zilli et al 2008, Vance 2009 "conectados" y "aislados".…”

Section: Hidrología De Los Humedalesunclassified

Comunidades de invertebrados acuáticos de mallines de Patagonia, bajo distintos niveles de antropización

Epele¹

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En Patagonia los humedales se denominan “mallines”, palabra que en Mapuche significa área inundada o bajo donde se acumula el agua. Son una fuente importante de recursos para especies nativas terrestres y acuáticas y por ser los ambientes patagónicos de mayor productividad forrajera presentan un uso ganadero generalizado que sustenta gran parte la economía regional. Con el objetivo de evaluar las respuestas de las comunidades de invertebrados acuáticos a los diferentes niveles de antropización producidos por las prácticas ganaderas y detectar qué ensambles de invertebrados pueden ser indicadores de degradación ambiental, se muestrearon durante el verano (2006 y 2007) 30 mallines y 15 ríos y arroyos de precordillera y estepa en el NO de la provincia de Chubut (42°02' y 44°22' S - 70°13' y 71°31' O). Se realizó una caracterización ambiental que incluyó condiciones físicas, químicas y biológicas. Se tomaron muestras de invertebrados acuáticos (n=3 por sitio), las que fueron de columna de agua en los mallines (n=90) y del bentos en los ríos (n=45). Por otro lado, se analizó mensualmente (estudio temporal: mayo 2008-abril 2009) la variación estructural y funcional de las comunidades de invertebrados acuáticos en un mallín de estepa (Mallín Crespo, 825 m.s.n.m.) en relación a los factores ambientales y al uso ganadero. Se seleccionaron tres charcas intermitentes y en cada visita se documentaron las características ambientales y se colectó una muestra integrada de invertebrados en cada una (n=36).

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Geographically isolated wetlands and intermittent/ephemeral streams in Montana : extent, distribution, and function

Cited by 11 publications

References 7 publications

GIS‐Based Stream Classification in a Mountain Watershed for Jurisdictional Evaluation

GIS‐Based Stream Classification in a Mountain Watershed for Jurisdictional Evaluation

Biophysical-Regulatory Classification and Profiling of Streams Across Management Units and Ecoregions1

Comunidades de invertebrados acuáticos de mallines de Patagonia, bajo distintos niveles de antropización

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