Search Results - "May, Jason T."
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Coupled Downscaled Climate Models and Ecophysiological Metrics Forecast Habitat Compression for an Endangered Estuarine Fish
Published in PloS one (21-01-2016)“…Climate change is driving rapid changes in environmental conditions and affecting population and species' persistence across spatial and temporal scales…”
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Stream macroinvertebrate response models for bioassessment metrics: addressing the issue of spatial scale
Published in PloS one (27-03-2014)“…We developed independent predictive disturbance models for a full regional data set and four individual ecoregions (Full Region vs. Individual Ecoregion…”
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Associations of Benthic Macroinvertebrate Assemblages with Environmental Variables in the Upper Clear Creek Watershed, California
Published in Western North American naturalist (01-12-2012)“…Benthic macroinvertebrates are integral components of stream ecosystems and are often used to assess the ecological integrity of streams. We sampled streams in…”
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Responses of benthic macroinvertebrates to environmental changes associated with urbanization in nine metropolitan areas
Published in Ecological applications (01-07-2010)“…Responses of benthic macroinvertebrates along gradients of urban intensity were investigated in nine metropolitan areas across the United States. Invertebrate…”
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Patterns and magnitude of flow alteration in California, USA
Published in Freshwater biology (01-08-2018)“…Quantifying the natural flow regime is essential for management of water resources and conservation of aquatic ecosystems. Understanding the degree to which…”
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Tools for managing hydrologic alteration on a regional scale: Setting targets to protect stream health
Published in Freshwater biology (01-08-2018)“…Widespread hydrologic alteration creates a need for tools to assess ecological impacts to streams that can be applied across large geographic scales. A…”
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Evaluating the adequacy of a reference-site pool for ecological assessments in environmentally complex regions
Published in Freshwater science (01-03-2016)“…Many advances in the field of bioassessment have focused on approaches for objectively selecting the pool of reference sites used to establish expectations for…”
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Predicting biological condition in southern California streams
Published in Landscape and urban planning (01-10-2012)“…► We developed a boosted regression tree model for predicting stream biological condition at unsampled sites. ► The two most important variables were…”
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Urban streams across the USA: lessons learned from studies in 9 metropolitan areas
Published in Journal of the North American Benthological Society (01-12-2009)“…Studies of the effects of urbanization on stream ecosystems have usually focused on single metropolitan areas. Synthesis of the results of such studies have…”
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Comparison of watershed disturbance predictive models for stream benthic macroinvertebrates for three distinct ecoregions in western US
Published in Ecological indicators (01-11-2010)“…The successful use of macroinvertebrates as indicators of stream condition in bioassessments has led to heightened interest throughout the scientific community…”
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Correspondence of biological condition models of California streams at statewide and regional scales
Published in Environmental monitoring and assessment (01-01-2015)“…We used boosted regression trees (BRT) to model stream biological condition as measured by benthic macroinvertebrate taxonomic completeness, the ratio of…”
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Comparison of Stream Invertebrate Response Models for Bioassessment Metrics
Published in Journal of the American Water Resources Association (01-06-2012)“…We aggregated invertebrate data from various sources to assemble data for modeling in two ecoregions in Oregon and one in California. Our goal was to compare…”
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Response to King and Baker: limitations on threshold detection and characterization of community thresholds
Published in Ecological applications (01-10-2011)Get full text
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Temporal changes in aquatic-invertebrate and fish assemblages in streams of the north-central and northeastern US
Published in Ecological indicators (01-07-2012)“…Many management agencies seek to evaluate temporal changes in aquatic assemblages at monitoring sites, but few have sites with ecological time series that are…”
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A quantitative tool for assessing the integrity of southern coastal California streams
Published in Environmental management (New York) (01-04-2005)“…We developed a benthic macro-invertebrate index of biological integrity (B-IBI) for the semi-arid and populous southern California coastal region. Potential…”
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Relation of urbanization to stream fish assemblages and species traits in nine metropolitan areas of the United States
Published in Urban ecosystems (01-12-2009)“…We examined associations of fish assemblages and fish traits with urbanization and selected environmental variables in nine major United States metropolitan…”
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AQUATIC VERTEBRATE ASSEMBLAGES OF THE UPPER CLEAR CREEK WATERSHED, CALIFORNIA
Published in Western North American naturalist (01-07-2007)“…We sampled streams in the Upper Clear Creek Watershed in northwestern California in fall 2004 and fall 2005 to document assemblages of aquatic vertebrates and…”
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Fish communities of the Sacramento River Basin: implications for conservation of native fishes in the Central Valley, California
Published in Environmental biology of fishes (01-04-2002)“…The associations of resident fish communities with environmental variables and stream condition were evaluated at representative sites within the Sacramento…”
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Variation in Spring Nearshore Resident Fish Species Composition and Life Histories in the Lower San Joaquin Watershed and Delta
Published in San Francisco estuary and watershed science (01-09-2006)“…Providing freshwater to human populations while protecting or rehabilitating ecosystem health is a significant challenge to. water resource managers and…”
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Macroinvertebrate assemblages on woody debris and their relations with environmental variables in the Lower Sacramento and San Joaquin River drainages, California
Published in Environmental monitoring and assessment (01-09-2000)“…Data from 25 sites were used to evaluate associations between macroinvertebrate assemblages on large woody debris (snags) and environmental variables in the…”
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