GENERAL INFORMATION 1. Title of Dataset: The Willamette Valley (Oregon) Prairie Plant Trait Dataset 2. Abstract: The Willamette Valley (Oregon) Prairie Plant Trait Dataset is a compilation of plant traits of species important in upland prairies, wetland prairies, vernal pools, and emergent wetlands, and in the restoration of prairies and wetlands of the Willamette Valley of Oregon. These species are also found widely throughout the Pacific Northwest. The dataset contains more than 6600 data points on 187 species. Three types of plant trait data are included in the dataset: quantitative, categorical, and text. Sources of plant trait data include direct measurements in the field or in the laboratory, or gathered from the published literature, including local floras, references books, and databases. Laboratory measurements include measurements of plant growth under standardized growth chamber conditions. The use of standardized conditions allows integration of results with those in the scientific literature. Standardized growth chamber conditions include specifications for germination media, transfer of germinates, pot size, growing media, nutrient solutions, growing illumination and temperatures, and dates of harvest. Growth chamber procedures followed the general recommendations of the Integrated Screening Programme (Hendry, G.A.F. and Grime, J.P. (eds) 1993. Methods in Comparative Plant Ecology: A Laboratory Manual. Chapman and Hall, London). 3. Author Information: Co-investigator Contact Information Name: Clark, Deborah Institution: Oregon State University Address: Corvallis, OR 97333 Email: Deborah.clark@lifetime.oregonstate.edu Co-investigator Contact Information Name: Wilson, Mark V. Institution: Oregon State University Address: Corvallis, OR 97333 Email: wilsonm@science.oregonstate.edu 4. Date of data collection: 2005-2008 5. Geographic location of data collection: Willamette Valley, Oregon, USA 6. Information about funding sources that supported the collection of the data: • Northwest Conservation Fund of the Priscilla Bullitt Collins Trust • The Nature Conservancy (TNC) • Bureau of Land Management (Eugene District), US Department of the Interior, Order No. HEP040027 7. Subjects (Library of Congress Subject Headings) Prairie restoration Wetland restoration Plant ecology Restoration monitoring (Ecology) Plant communities SHARING/ACCESS INFORMATION 1. Licenses/restrictions placed on the data: None 2. Links to publications that use the plant trait data: The following publications are accessible at OSU ScholarsArchives (ir.library.oregonstate.edu) or at Cascadia Prairie Oak Partnership Technical Library (https://cascadiaprairieoak.org/technical-library) (use title or url below in search box). • Clark, D.L., Wilson, M., Roberts, R., Dunwiddie, P.W., Stanley, A., and Kaye, T.N. 2012. Plant traits – A tool for restoration? Applied Vegetation Science 15:449-458 (https://ir.library.oregonstate.edu/concern/articles/1g05fh73j) • Roberts, R.E., Clark, D.L., and Wilson, M.V. 2010. Traits, neighbors, and species performance in prairie restoration. Applied Vegetation Science 13: 270-279 (https://ir.library.oregonstate.edu/concern/articles/qr46r5697) • Wilson, M.V., Clark, D.L. and Roberts, R.E. 2005. Predicting field establishment rates from standardized plant traits - Year two of Restoring prairies: A synthesis of studies on vegetation and invasive species in support of effective management Order No. HEP040027 (https://ir.library.oregonstate.edu/concern/technical_reports/v692tc350) 3. Were data derived from another source? If yes, list sources. Data for the plant trait dataset were measured directly in the field, or in the laboratory, or were gathered from the published literature, including local floras, references books, and databases. Citations are provided in the dataset. 4. Recommended citation for the data: Clark, D., & Wilson, M. V. (2019). The Willamette Valley (Oregon) Prairie Plant Trait Dataset (Version 1) [Data set]. Oregon State University. https://doi.org/10.7267/6Q182R738 5. DOI 10.7267/6q182r738 DATA AND FILE OVERVIEW 1. File List A. Filename: Willamette Valley (Oregon) Prairie Plant Trait Descriptions.pdf Short description: Table of plant trait descriptions and explanations B. Filename: Species.csv Short description: Scientific name of plant species C. Filename: TraitNames.csv Short description: Trait name and data type D. Filename: Choices.csv Short description: Choices within categorical traits E. Filename: Citations.csv Short description: Citation of publication sources F. Filename: Traits.csv Short description: Matrix of species, traits, values for quantitative traits, measurement units, category choice for categorical traits, text for text traits, and citations for publication sources of traits values 2. Relationships between files: Traits.csv is a compilation of the other four spreadsheets (Species.csv, TraitNames.csv, Choice.csv, and Citations.csv) 3. Are there multiple versions of the dataset? No METHODOLOGICAL INFORMATION 1. Description of methods used for collection/generation of data: The Willamette Valley (Oregon) Prairie Plant Trait Dataset contains more than 6600 data points on 187 species. Three types of plant trait data are included in the dataset: quantitative, categorical, and text. Sources of plant trait data include direct measurements in the field, or in the laboratory, or gathered from the published literature, including local floras, references books and databases. Laboratory measurements include measurements of plant growth under standardized growth chamber conditions. The use of standardized conditions allows integration of results with those in the scientific literature. Standardized growth chamber conditions include specifications for germination media, transfer of germinants, pot size, growing media, nutrient solutions, growing illumination and temperatures, and dates of harvest. Growth chamber procedures followed the general recommendations of the Integrated Screening Programme (Hendry, G.A.F. and Grime, J.P. (eds) 1993. Methods in Comparative Plant Ecology: A Laboratory Manual. Chapman and Hall, London). Detailed protocols for the quantitative measurements (listed below) can be found in Clark, D.L. and Wilson, M.V. 2005. Restoring prairies: A synthesis of studies on vegetation and invasive species in support of effective management (Year two) Progress Report II Order NO. HEP040027, which is accessible at OSU ScholarsArchives (https://ir.library.oregonstate.edu/concern/technical_reports/v692tc350) or at Cascadia Prairie Oak Partnership Technical Library (https://cascadiaprairieoak.org/technical-library ). a. Protocol for measuring plant traits for seedlings under standardized conditions based on Hendry and Grime 1993. b. Protocol for measuring seed mass. c. Protocol for measuring seed dimensions. d. Protocol for germinating seeds e. Seed germination requirements for target species 2. Methods for processing the data: Several quantitative plant traits values were calculated from the raw laboratory data. The calculations for these plants traits are described in the file Willamette Valley (Oregon) Prairie Plant Trait Descriptions. 3. Instrument- or software-specific information needed to interpret the data: None. 4. Environmental/experimental conditions: Laboratory measurements include measurements of plant growth under standardized growth chamber conditions. The use of standardized conditions allows integration of results with those in the scientific literature. Standardized growth chamber conditions include specifications for germination media, transfer of germinants, pot size, growing media, nutrient solutions, growing illumination and temperatures, and dates of harvest. Growth chamber procedures followed the general recommendations of the Integrated Screening Programme (Hendry, G.A.F. and Grime, J.P. (eds) 1993. Methods in Comparative Plant Ecology: A Laboratory Manual. Chapman and Hall, London). Detailed protocols for quantitative measurements can be found in Clark, D.L. and Wilson, M.V. 2005. Restoring prairies: A synthesis of studies on vegetation and invasive species in support of effective management (Year two) Progress Report II Order NO. HEP040027, which is accessible at OSU ScholarsArchives: (https://ir.library.oregonstate.edu/concern/technical_reports/v692tc350 ) or at the Cascadia Prairie Oak Partnership Technical Library: (https://cascadiaprairieoak.org/technical-library). 5. People involved with sample collection, processing, analysis and/or submission: Rachel E. Roberts, Department of Botany and Plant Pathology, Oregon State University, Corvallis, Oregon. DATA-SPECIFIC INFORMATION FOR: Filename (1): Species.csv 1. Number of variables: one 2. Number of cases/rows: 188 3. Missing data codes: NA 4. Variable List • Variable name: Full species name Variable description: Scientific name of plant species Filename (2): TraitNames.csv 1. Number of variables: two 2. Number of cases/rows: 66 3. Missing data codes: NA 4. Variable List • Variable name: TraitName Variable Description: Name of plant trait • Name: Data type Description: Type of data collected for each plant trait C = categorical Q = quantitative T = text Filename (3): Choices.csv 1. Number of variables: 2 2. Number of cases/rows: 185 3. Missing data codes: NA 4. Variable List • Variable name: Trait Variable description: Name of categorical plant trait • Variable name: Choice Variable description: Choices within each categorical trait Filename (4): Citations.csv 1. Number of variables: 6 2. Number of cases/rows: 264 3. Missing data codes: NA 4. Variable List • Variable name: Name Variable description: Names of the authors and date as they appear in citation • Variable name: Authors Variable description: Complete names of the authors • Variable name: Year Variable description: Date of publication of the citation • Variable name: Title Variable description: Title of the publication • Variable name: Source Variable description: Source of the publication or report Filename (5): Traits.csv 1. Number of variables: 7 2. Number of cases/rows: 6677 3. Missing data codes: NA 4. Variable List • Variable name: SpName Variable description: Scientific name of plant species • Variable name: TraitName Variable description: Name of plant trait • Variable name: ValueQ Variable description: Value for quantitative traits • Variable name: Units Variable description: Measurements units for quantitative traits • Variable name: ValueC Variable description: Name of category choice for categorical traits • Variable name: ValueT Variable description: Text for text traits • Variable name: CitName Variable description: Citations for publication sources of trait values