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: (EM-821)
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EM-821: A Predictive Index of Biotic Integrity Model for A predictive index of biotic integrity model foraquatic-vertebrate assemblages of Western U.S. Streams
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EM Identity and Description
| EM-821 | |
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Document Author
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Pont, D., Hughes, R.M., Whittier, T.R., and S. Schmutz. |
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Document Year
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2009 |
Variable General Info
| Anthropogenic reference criteria (disturbance) |
Ecoregions ?Comment:Mountains, Plains, Xeric |
Environmental variables |
Vertebrate assemblage (fish & amphibian) metrics ?Comment:This is a file for all the vertebrate taxa collected providing autecological characteristics for each taxon. Normally these variables would be included but given the 600 or so taxa collected, the numbers would overwhelm the VRD and Database if individually entered. |
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Variable ID
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19561 | 19560 | 19929 | 19928 |
| Not reported | Not reported | Not reported | Not reported | |
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Qualitative-Quantitative
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Quantitative (Cardinal Only) | Qualitative (Class, Rating or Ranking) | Quantitative (Cardinal Only) | Quantitative (Cardinal Only) |
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Cardinal-Ordinal
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Cardinal | Non-Ordinal | Cardinal | Cardinal |
| variable | Not applicable |
Not reported ?Comment:Varied with only a handful in source documentation. |
Not reported |
Variable Typology
| Anthropogenic reference criteria (disturbance) |
Ecoregions ?Comment:Mountains, Plains, Xeric |
Environmental variables |
Vertebrate assemblage (fish & amphibian) metrics ?Comment:This is a file for all the vertebrate taxa collected providing autecological characteristics for each taxon. Normally these variables would be included but given the 600 or so taxa collected, the numbers would overwhelm the VRD and Database if individually entered. |
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Predictor-Intermediate-Response
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Predictor |
Predictor |
Predictor |
Predictor |
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Predictor Variable Type
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Time- or Space-varying Variable |
Time- or Space-varying Variable |
Time- or Space-varying Variable |
Time- or Space-varying Variable |
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Response Variable Type
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Not applicable | Not applicable | Not applicable | Not applicable |
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Data Source/Type
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Local field/Lab data (e.g., particular to the EM study) | Map or database (e.g., wide coverage, wide availability, measured or modeled) |
Map or database (e.g., wide coverage, wide availability, measured or modeled) ?Comment:Some data was local to site and catchment |
Local field/Lab data (e.g., particular to the EM study) ?Comment:Developed for the taxa collected by the EPA over their EMAP and NARS surveys. |
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Variable Classification Hierarchy
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5. Ecosystem Attributes and Potential Supply of Ecosystem Goods and Services |
2. Land Surface (or Water Body) Cover, Use, Substrate, or Metric |
5. Ecosystem Attributes and Potential Supply of Ecosystem Goods and Services |
5. Ecosystem Attributes and Potential Supply of Ecosystem Goods and Services |
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--Physical/chemical characteristics of nonliving ecosystem components |
--Ecoregion designation |
--Biological characteristics, processes or requirements of living ecosystem components |
--Biological characteristics, processes or requirements of living ecosystem components |
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----Other, multiple, unspecified or unclear |
----Biological characteristics, processes or requirements of fauna |
----Biological characteristics, processes or requirements of fauna |
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------Other, multiple, unspecified or unclear |
------Other, multiple, unspecified or unclear |
Variable Spatial Characteristics
| Anthropogenic reference criteria (disturbance) |
Ecoregions ?Comment:Mountains, Plains, Xeric |
Environmental variables |
Vertebrate assemblage (fish & amphibian) metrics ?Comment:This is a file for all the vertebrate taxa collected providing autecological characteristics for each taxon. Normally these variables would be included but given the 600 or so taxa collected, the numbers would overwhelm the VRD and Database if individually entered. |
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Spatial Extent Area
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>1,000,000 km^2 | 100,000-1,000,000 km^2 | >1,000,000 km^2 | >1,000,000 km^2 |
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Spatially Distributed?
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No | Yes | Yes | Yes |
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Observations Spatially Patterned?
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Not applicable | Yes | Yes | Yes |
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Spatial Grain Type
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Not applicable | Other (specify), for irregular (e.g., stream reach, lake basin) | other (specify), for irregular (e.g., stream reach, lake basin) | other (specify), for irregular (e.g., stream reach, lake basin) |
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Spatial Grain Size
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Not applicable | ecoregion | stream reach | stream reach |
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Spatial Density
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Not applicable | Not applicable |
Not applicable ?Comment:stream reach sites and cathment variables |
Not applicable |
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EnviroAtlas URL
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U.S. EPA (Omernik) ecoregions |
Variable Temporal Characteristics
| Anthropogenic reference criteria (disturbance) |
Ecoregions ?Comment:Mountains, Plains, Xeric |
Environmental variables |
Vertebrate assemblage (fish & amphibian) metrics ?Comment:This is a file for all the vertebrate taxa collected providing autecological characteristics for each taxon. Normally these variables would be included but given the 600 or so taxa collected, the numbers would overwhelm the VRD and Database if individually entered. |
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Temporal Extent
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2004-2005 | 2004-2005 | 2004-2005 | 2004-2005 |
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Temporally Distributed?
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Not applicable | No | No | No |
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Regular Temporal Grain?
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Not applicable | Not applicable | Not applicable | Not applicable |
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Temporal Grain Size Value
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Not applicable | Not applicable | Not applicable | Not applicable |
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Temporal Grain Size Units
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Not applicable | Not applicable | Not applicable | Not applicable |
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Temporal Density
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Not applicable | Not applicable | Not applicable | Not applicable |
Variable Values
| Anthropogenic reference criteria (disturbance) |
Ecoregions ?Comment:Mountains, Plains, Xeric |
Environmental variables |
Vertebrate assemblage (fish & amphibian) metrics ?Comment:This is a file for all the vertebrate taxa collected providing autecological characteristics for each taxon. Normally these variables would be included but given the 600 or so taxa collected, the numbers would overwhelm the VRD and Database if individually entered. |
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| Not reported | Not applicable | Not reported | Not reported | |
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Min Value
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Not reported | Not applicable | Not reported | Not reported |
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Max Value
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Not reported | Not applicable | Not reported | Not reported |
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Other Value Type
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Not applicable | Not applicable | Not applicable | Not applicable |
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Other Value
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Not reported | Not applicable | Not reported | Not reported |
Variable Variability and Sensitivity
| Anthropogenic reference criteria (disturbance) |
Ecoregions ?Comment:Mountains, Plains, Xeric |
Environmental variables |
Vertebrate assemblage (fish & amphibian) metrics ?Comment:This is a file for all the vertebrate taxa collected providing autecological characteristics for each taxon. Normally these variables would be included but given the 600 or so taxa collected, the numbers would overwhelm the VRD and Database if individually entered. |
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Variability Expression Given?
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No | Not applicable | No | No |
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Variability Metric
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None | None | None | None |
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Variability Value
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None | None | None | None |
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Variability Units
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None | None | None | None |
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Resampling Used?
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Not applicable | Not applicable | Not applicable | Not applicable |
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Variability Expression Used in Modeling?
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Not applicable | Not applicable | Not applicable | Not applicable |
Variable Operational Validation (Response Variables only)
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Variable ID
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Validated?
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Validation Approach (within, between, etc.)
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Validation Quality (Qual/Quant)
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Validation Method (Stat/Deviance)
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Validation Metric
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Validation Value
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Validation Units
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Use of Measured Response Data
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