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- 2010532290 abstract "Lichens are one of several forest health indicators sampled every year for a subset of plots on the permanent grid established by the Forest Inventory and Analysis (FIA) Program of the U.S. Department of Agriculture Forest Service. This report reviews analysis procedures for standard FIA lichen indicator data. Analyses of lichen data contribute to state, regional, and national reports that evaluate spatial pattern and temporal trends in forest biodiversity, air quality, and climate. Data collection and management follow standard national protocols. A lichen species richness index (the number of species per FIA plot) is available for all areas soon after data collection. Air quality and climate indexes (for defined regional gradients and based on lichen species composition at plots) are developed from an FIA lichen gradient model. Critical steps in standard data analysis include screening plots to exclude biased data, selection of appropriate populations, then analysis, presentation, and interpretation of data. Analysis of ranked indexes is recommended as the default data option, to compensate for frequent failure of indexes to meet assumptions for parametric statistical tests. Analysis of variance is the recommended default tool for standard analysis of both spatial pattern and trends across time. Because plot density is low, dot maps are currently recommended for display. Lichen data from the Southeast Lichen Model Region illustrate all steps in standard analysis. Lichen indicator data can also contribute to analyses of regional issues that may include specialized or experimental analysis techniques. Further development of analysis approaches is needed in several areas, including calibration between lichen gradient models for adjacent regions and better mapping techniques.".
- 2010532290 contributor B12030280.
- 2010532290 contributor B12030281.
- 2010532290 created "[2010]".
- 2010532290 date "2010".
- 2010532290 date "[2010]".
- 2010532290 dateCopyrighted "[2010]".
- 2010532290 description "Includes bibliographical references (p. 49-56).".
- 2010532290 description "Lichens are one of several forest health indicators sampled every year for a subset of plots on the permanent grid established by the Forest Inventory and Analysis (FIA) Program of the U.S. Department of Agriculture Forest Service. This report reviews analysis procedures for standard FIA lichen indicator data. Analyses of lichen data contribute to state, regional, and national reports that evaluate spatial pattern and temporal trends in forest biodiversity, air quality, and climate. Data collection and management follow standard national protocols. A lichen species richness index (the number of species per FIA plot) is available for all areas soon after data collection. Air quality and climate indexes (for defined regional gradients and based on lichen species composition at plots) are developed from an FIA lichen gradient model. Critical steps in standard data analysis include screening plots to exclude biased data, selection of appropriate populations, then analysis, presentation, and interpretation of data. Analysis of ranked indexes is recommended as the default data option, to compensate for frequent failure of indexes to meet assumptions for parametric statistical tests. Analysis of variance is the recommended default tool for standard analysis of both spatial pattern and trends across time. Because plot density is low, dot maps are currently recommended for display. Lichen data from the Southeast Lichen Model Region illustrate all steps in standard analysis. Lichen indicator data can also contribute to analyses of regional issues that may include specialized or experimental analysis techniques. Further development of analysis approaches is needed in several areas, including calibration between lichen gradient models for adjacent regions and better mapping techniques.".
- 2010532290 extent "62 p. :".
- 2010532290 hasFormat "Available also in electronic format on the Internet.".
- 2010532290 identifier 677928268.pdf.
- 2010532290 identifier 36598.
- 2010532290 isFormatOf "Available also in electronic format on the Internet.".
- 2010532290 isPartOf "General technical report PNW ; 818.".
- 2010532290 isPartOf "General technical report PNW ; GTR-818".
- 2010532290 issued "2010".
- 2010532290 issued "[2010]".
- 2010532290 language "eng".
- 2010532290 publisher "Portland, OR : U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station,".
- 2010532290 relation "Available also in electronic format on the Internet.".
- 2010532290 spatial "United States".
- 2010532290 spatial "United States.".
- 2010532290 subject "Air Pollution United States Measurement.".
- 2010532290 subject "Air quality United States Measurement.".
- 2010532290 subject "Epiphytic lichens Effect of air pollution on United States.".
- 2010532290 subject "Epiphytic lichens Monitoring United States.".
- 2010532290 subject "Forest Inventory and Analysis Program (U.S.)".
- 2010532290 subject "Forest health United States Evaluation.".
- 2010532290 subject "Forest monitoring United States.".
- 2010532290 subject "Lichen communities United States.".
- 2010532290 subject "Lichenological surveys United States.".
- 2010532290 subject "Plant indicators United States.".
- 2010532290 subject "QK587 .W69 2010".
- 2010532290 title "Analyzing lichen indicator data in the Forest Inventory and Analysis Program / Susan Will-Wolf.".
- 2010532290 type "text".