Riparian vegetation and amphibian diet in the Oregon Coast Range

Frequently-anticipated questions:


What does this data set describe?

Title:
Riparian vegetation and amphibian diet in the Oregon Coast Range
Abstract:
Data set includes three seasons of aquatic amphibian, and two seasons of terrestrial amphibian size, diet, information as well as habitat information from ten stream and riparian sites in the Oregon Coast Range. Data were collected in 2002 and 2003.
  1. How should this data set be cited?

    Paula Graff and Dan Edge, Unknown, Riparian vegetation and amphibian diet in the Oregon Coast Range.

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -123.59
    East_Bounding_Coordinate: -123.36
    North_Bounding_Coordinate: 4.46
    South_Bounding_Coordinate: 43.82
    Description_of_Geographic_Extent:
    Data were collected from ten study site locations in the Oregon Coast Range.

  3. What does it look like?

  4. Does the data set describe conditions during a particular time period?

    Beginning_Date: Jul-2002
    Ending_Date: Jun-2003
    Currentness_Reference:
    Data were developed through field observation and previously published data

  5. What is the general form of this data set?

    Geospatial_Data_Presentation_Form: spreadsheet

  6. How does the data set represent geographic features?

    1. How are geographic features stored in the data set?

    2. What coordinate system is used to represent geographic features?

  7. How does the data set describe geographic features?

    AqAmphibians.xls
    Microsoft Excel spreadsheet containing three worksheets - July, October, and June (Source: Microsoft)

    Date
    Date of detection (21st century) (Source: Dataset developer)

    Date format (mm/dd/yy)

    Gape
    Width of gape (Source: Dataset developer)

    Range of values
    Minimum:0.5 (blank indicates no measurment)
    Maximum:undetermined maximum
    Units:millimeters
    Resolution:0.5

    Location
    Details on location of where individual first spotted during aquatic surveys if so noted by surveyor. Usually refers to an (cover) object and/or stream habitat type. (Source: Dataset developer)

    Text description

    Site
    Study site name. Refers to the approximate 100 meter stream reach and includes bankfull width. (Source: Dataset developer)

    List of stream names

    Species
    Amphibian species captured (Source: Dataset developer)

    ValueDefinition
    ASTRlarval Ascaphus truei
    DITElarval Dicamptodon tenebrosus
    PLDUPlethodon dunni
    RAAURana aurora
    RH sppRhyacotriton spp
    TAGRTaricha granulosa
    TDITEadult Dicamptodon tenebrosus
    ENESEnsatina eschscholtzii

    SVL
    Length of individual measured from tip of snout to posterior end of vent (Source: Dataset developer)

    Range of values
    Minimum:0.5 (blank indicates no measurement)
    Maximum:undetermined maximum
    Units:millimeters
    Resolution:0.5

    T#
    Number of aquatic transect in which individual captured (or number of closest transect). (Source: Dataset developer)

    List of transect number or other notation.

    TL
    Total length of individual measured from tip of snout to end of tail (Source: Dataset developer)

    Range of values
    Minimum:0.5 (blank indicates no measurement)
    Maximum:undetermined maximum
    Units:millimeters
    Resolution:0.5

    Weight
    Weight of individual organism. Weight was taken before stomach contents sampled (if sampled). (Source: Dataset developer)

    Range of values
    Minimum:0.1 (blank indicates no measurement)
    Maximum:undetermined maximum
    Units:grams
    Resolution:0.1

    AqDiets.xls (Diet)
    Microsoft Excel spreadsheet containing information on prey/individual and stomach fullness/individual. (Source: Microsoft)

    Date
    Date of capture (Source: Dataset developer)

    Date format (mm/dd/yyyy)

    Individual
    Individual identifier for season so that 2 individuals captured at the same location were counted separately (Source: Dataset developer)

    Unique identifier - concatenation of site abbreviation, species code, and transect designation

    Number
    Count of prey item/taxa/individual (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:undetermined maximum

    Origin
    Origin of prey item (Source: Dataset developer)

    ValueDefinition
    Aquatic 
    Terrestrial 
    Unknown 

    Season
    Month designating the season of capture (Source: Dataset developer)

    ValueDefinition
    Julyamphibians captured during June/July 2002
    Octoberall amphibians captured during September/October 2002
    Juneall amphibians captured during June/July 2003

    Site
    Study site name. Refers to the approximate 100 meter stream reach and includes bankfull width. (Source: Dataset developer)

    List of stream names

    Species
    Amphibian species captured (Source: Dataset developer)

    ValueDefinition
    ASTRlarval Ascaphus truei
    DITElarval Dicamptodon tenebrosus
    PLDUPlethodon dunni
    RAAURana aurora
    RH sppRhyacotriton spp
    TAGRTaricha granulosa
    TDITEadult Dicamptodon tenebrosus
    ENESEnsatina eschscholtizii

    SVL
    Length of individual measured from tip of snout to posterior end of vent (Source: Dataset developer)

    Range of values
    Minimum:0.5 (blank indicates no measurement)
    Maximum:undetermined maximum
    Units:millimeters
    Resolution:0.5

    Taxa
    Taxonomic group of invertebrate prey identified from stomach sample (Source: Dataset developer)

    Unbounded list of taxa

    TL
    Total length of individual measured from tip of snout to end of tail (Source: Dataset developer)

    Range of values
    Minimum:0.5 (blank indicates no measurement)
    Maximum:undetermined maximum
    Units:millimeters
    Resolution:0.5

    Transect
    Number of aquatic transect in which individual captured (or number of closest transect). (Source: Dataset developer)

    List of transect number or other notation.

    AqDiets.xls (fullness)
    Microsoft Excel spreadsheet containing information on prey/individual and stomach fullness/individual. (Source: Microsoft)

    FullIndex
    Amount of area in a Petri dish covered by stomach contents (mm2) divided by SVL of individual (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:undetermined maximum

    Gape
    Width of gape (Source: Dataset developer)

    Range of values
    Minimum:0.5 (blank indicates no measurment)
    Maximum:undetermined maximum
    Units:millimeters
    Resolution:0.5

    Individual
    Individual identifier for season so that 2 individuals captured at the same location were counted separately (Source: Dataset developer)

    Unique identifier - concatenation of site abbreviation, species code, and transect designation

    Season
    Month designating the season of capture (Source: Dataset developer)

    ValueDefinition
    Julyamphibians captured during June/July 2002
    Octoberall amphibians captured during September/October 2002
    Juneall amphibians captured during June/July 2003

    Site
    Study site name. Refers to the approximate 100 meter stream reach and includes bankfull width. (Source: Dataset developer)

    List of stream names

    Species
    Amphibian species captured (Source: Dataset developer)

    ValueDefinition
    ASTRlarval Ascaphus truei
    DITElarval Dicamptodon tenebrosus
    PLDUPlethodon dunni
    RAAURana aurora
    RH sppRhyacotriton spp
    TAGRTaricha granulosa
    TDITEadult Dicamptodon tenebrosus
    ENESEnsatina eschscholtizii

    SVL
    Length of individual measured from tip of snout to posterior end of vent (Source: Dataset developer)

    Range of values
    Minimum:0.5 (blank indicates no measurement)
    Maximum:undetermined maximum
    Units:millimeters
    Resolution:0.5

    TL
    Total length of individual measured from tip of snout to end of tail (Source: Dataset developer)

    Range of values
    Minimum:0.5 (blank indicates no measurement)
    Maximum:undetermined maximum
    Units:millimeters
    Resolution:0.5

    Weight
    Weight of individual organism. Weight was taken before stomach contents sampled (if sampled). (Source: Dataset developer)

    Range of values
    Minimum:0.1 (blank indicates no measurement)
    Maximum:undetermined maximum
    Units:grams
    Resolution:0.1

    AqHab.xls
    Microsoft Excel spreadsheet containing information on stream habitat (Source: Microsoft)

    Bankfull
    Bankfull width of transect (Source: Dataset developer)

    Range of values
    Minimum:1
    Maximum:undetermined maximum
    Units:centimeters

    Depth
    Average depth of 5 measurements taken at the downstream end (bottom) of transect (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:undetermined maxiumum
    Units:centimeters

    DSAspect
    Slope direction of stream (facing downstream from end of transect). (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:360
    Units:degrees

    Elev
    Elevation at site. (Determined using UTM coordinates generated from Topozone.com and 10-m DEMs from Oregon Spatial Data Clearinghouse) (Source: Dataset developer)

    Range of values
    Minimum:undetermined minimum
    Maximum:undetermined maximum
    Units:meters

    Fish
    Fish present at site (Source: Dataset developer)

    ValueDefinition
    Yes 
    No 

    Hab:Chute
    visual estimate of the amount of chute habitat type in the transect (expressed as a proportion of one) (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    Hab:Pool
    visual estimate of the amount of pool habitat type in the transect (expressed as a proportion of one) (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    Hab:Riffle
    visual estimate of the amount of riffle habitat type in the transect (expressed as a proportion of one) (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    Hab:Step
    visual estimate of the amount of step habitat type in the transect (expressed as a proportion of one) (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    Herb
    Proportion of transect covered by overhanging non-shrubby vegetation (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    Lithology
    Rock type at site (Source: Dataset developer)

    ValueDefinition
    Marine 
    Volcanic 

    Overstory
    Proportion of the transect with overstory cover (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    Overstory:ACMA
    Proportion of overstory cover made up of Acer macrophyllym (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    Overstory:ALRU
    Proportion of overstory cover made up of Alnus rubra (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    Overstory:PSME
    Proportion of overstory cover made up of Pseudotsuga menziesii (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    Overstory:TABR
    Proportion of overstory cover made up of Taxus brevifolia (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    Overstory:THPL
    Proportion of overstory cover made up of Thuja plicata (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    Overstory:TSHE
    Proportion of overstory cover made up of Tsuga heterophylla (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    Season
    Month designating the season of capture (Source: Dataset developer)

    ValueDefinition
    Julyamphibians captured during June/July 2002
    Octoberall amphibians captured during September/October 2002
    Juneall amphibians captured during June/July 2003

    Shrub
    Proportion of transect covered by shrubs (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    Shrub:ACCI
    Proportion of shrub cover made up of Acer circinatum (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    Shrub:BENE
    Proportion of shrub cover made up of Berberis nervosa (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    Shrub:COCO
    Proportion of shrub cover made up of Corylus cornuta (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    Shrub:CONU
    Proportion of shrub cover made up of Cornus nuttallii (Source: dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    Shrub:GASH
    Proportion of shrub cover made up of Gaultheria shallon (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    Shrub:HODI
    Proportion of shrub cover made up of Holodiscus discolor (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    Shrub:OECE
    Proportion of shrub cover made up of Oemleria cerasiformis (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    Shrub:OPHO
    Proportion of shrub cover made up of Oplopanax horridum (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    Shrub:RHPU
    Proportion of shrub cover made up of Rhamnus purshiana (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    Shrub:RIBR
    Proportion of shrub cover made up of Ribes bracteosum (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    Shrub:RUDI
    Proportion of shrub cover made up of Rubus discolor (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    Shrub:RULE
    Proportion of shrub cover made up of Rubus leucodermis (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    Shrub:RUSP
    Proportion of shrub cover made up of Rubus spectabilis (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    Shrub:SARA
    Proportion of shrub cover made up of Sambucus racemosa (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    Shrub:TSHEsap
    Proportion of shrub cover made up of Tsuga heterophylla < 2 cm diameter (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    Shrub:VACPA
    Proportion of shrub cover made up of Vaccinium parvifolium (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    Site
    Study site name. Refers to the approximate 100 meter stream reach and includes bankfull width. (Source: Dataset developer)

    List of stream names

    Sub:Bedrock
    Proportion of transect comprised of bedrock (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    Sub:Boulder
    Proportion of transect comprised of boulders (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    Sub:Cobble
    Proportion of transect comprised of cobbles (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    Sub:Gravel
    Proportion of transect comprised of gravel (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    Sub:OrgDeb
    Proportion of transect comprised of organic debris (primarily fines) (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    Sub:Pebble
    Proportion of transect comprised of pebbles (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    Sub:Sand
    Proportion of transect comprised of sand (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    Sub:Silt
    Proportion of transect comprised of silt (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    T Gradient
    Gradient of transect (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:undetermined maximum
    Units:percent

    T#
    Number of aquatic transect in which individual captured (or number of closest transect). (Source: Dataset developer)

    List of transect number or other notation

    Watershed
    Watershed area (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:undetermined maximum
    Units:hectares

    WetWidth
    Wetted width of transect (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:undetermined maximum
    Units:centimeters

    WoodCov
    Area of the cover provided by pieces of wood or bark that were > 5 cm in diameter (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:undetermined maximum
    Units:m2/m2 transect

    BenthicInverts.xls
    Microsoft Excel spreadsheet containing information on benthic invertebrates sampled. (Source: Microsoft)

    Collected
    Date of invertebrate collection (Source: Dataset developer)

    Date format (mm/dd/yy - 21st century)

    Count
    Number of invertebrates in taxonomic category (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:undetermined maximum

    Season
    Month designating the season of benthic collection (Source: Dataset developer)

    ValueDefinition
    Julybenthic samples collected during June/July 2002
    Octoberbenthic samples collected during September/October 2002
    Junebenthic samples collected during June/July 2003

    Site
    Study site name. Refers to the approximate 100 meter stream reach and includes bankfull width. (Source: Dataset developer)

    List of stream names

    Taxa
    Taxonomic group of invertebrate prey identified from stomach sample (Source: Dataset developer)

    Unbounded list of taxa

    TerreAmphibians.xls
    Microsoft Excel spreadsheet containing information on all individuals captured or detected during terrestrial (riparian) surveys. File is comprised of one worksheet for each season (Fall and Spring); column headings are the same for each worksheet. (Source: Microsoft)

    Date
    Date of capture (Source: Dataset developer)

    Date format (mm/dd/yyyy)

    Distance
    Distance of captured individual from the edge of the stream (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:undetermined maximum
    Units:meters

    Gape
    Width of gape (Source: Dataset developer)

    Range of values
    Minimum:0.5 (blank indicates no measurment)
    Maximum:undetermined maximum
    Units:millimeters
    Resolution:0.5

    Plot#, Location
    This is a comment column that describes the capture location of individual to corroborate distance from stream. Multiple methods that were used to capture amphibians are described in this column. (Source: Dataset developer)

    Text description

    Site
    Study site name. Refers to the approximate 100 meter stream reach and includes bankfull width. (Source: Dataset developer)

    List of stream names

    Species
    Amphibian species captured (Source: Dataset developer)

    ValueDefinition
    AMGRAmbystoma gracile
    HYREHyla regilla
    PLDUPlethodon dunni
    RAAURana aurora
    RH sppRhyacotriton spp
    TAGRTaricha granulosa
    TDITEadult Dicamptodon tenebrosus
    ENESEnsatina eschscholtzii
    PLVEPlethodon vehiculum

    SVL
    Length of individual measured from tip of snout to posterior end of vent (Source: Dataset developer)

    Range of values
    Minimum:0.5 (blank indicates no measurement)
    Maximum:undetermined maximum
    Units:millimeters
    Resolution:0.5

    TL
    Total length of individual measured from tip of snout to end of tail (Source: Dataset developer)

    Range of values
    Minimum:0.5 (blank indicates no measurement)
    Maximum:undetermined maximum
    Units:millimeters
    Resolution:0.5

    Weight
    Weight of individual organism. Weight was taken before stomach contents sampled (if sampled). (Source: Dataset developer)

    Range of values
    Minimum:0.1 (blank indicates no measurement)
    Maximum:undetermined maximum
    Units:grams
    Resolution:0.1

    TerreDiets.xls (Diet)
    Microsoft Excel spreadsheet containing information on prey/individual collected during terrestrial surveys. (Source: Microsoft)

    Date
    Date of capture (Source: Dataset developer)

    Date format (mm/dd/yyyy)

    Distance
    The individual’s capture distance from the edge of stream (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:30
    Units:meters

    Individual
    Individual identifier for season so that 2 individuals captured at the same location were counted separately (Source: Dataset developer)

    Unique identifier - concatenation of site abbreviation, species code, and transect designation

    Number
    Count of prey item/taxa/individual (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:undetermined maximum

    Origin
    Origin of prey item (Source: Dataset developer)

    ValueDefinition
    aquatic 
    terrestrial 

    Season
    Month designating the season of capture (Source: Dataset developer)

    ValueDefinition
    Fallamphibians captured during November/December 2002
    Springall amphibians captured during March/April/May 2003

    Species
    Amphibian species captured (Source: Dataset developer)

    ValueDefinition
    AMGRAmbystoma gracile
    HYREHyla regilla
    PLDUPlethodon dunni
    RAAURana aurora
    RH sppRhyacotriton spp
    TAGRTaricha granulosa
    TDITEadult Dicamptodon tenebrosus
    ENESEnsatina eschscholtzii
    PLVEPlethodon vehiculum

    SVL
    Length of individual measured from tip of snout to posterior end of vent (Source: Dataset developer)

    Range of values
    Minimum:0.5 (blank indicates no measurement)
    Maximum:undetermined maximum
    Units:millimeters
    Resolution:0.5

    TL
    Total length of individual measured from tip of snout to end of tail (Source: Dataset developer)

    Range of values
    Minimum:0.5 (blank indicates no measurement)
    Maximum:undetermined maximum
    Units:millimeters
    Resolution:0.5

    Weight
    Weight of individual organism. Weight was taken before stomach contents sampled (if sampled). (Source: Dataset developer)

    Range of values
    Minimum:0.1 (blank indicates no measurement)
    Maximum:undetermined maximum
    Units:grams
    Resolution:0.1

    TerreDiets.xls (Fullness)
    Microsoft Excel spreadsheet containing information on stomach fullness/individual collected during terrestrial surveys. (Source: Microsoft)

    Distance
    The individual’s capture distance from the edge of stream (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:30
    Units:meters

    FullIndex
    Amount of area in a Petri dish covered by stomach contents (mm2) divided by SVL of individual (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:undetermined maximum

    Gape
    Width of gape (Source: Dataset developer)

    Range of values
    Minimum:0.5 (blank indicates no measurment)
    Maximum:undetermined maximum
    Units:millimeters
    Resolution:0.5

    Individual
    Individual identifier for season so that 2 individuals captured at the same location were counted separately (Source: Dataset developer)

    Unique identifier - concatenation of site abbreviation, species code, and transect designation

    Season
    Month designating the season of capture (Source: Dataset developer)

    ValueDefinition
    Fallamphibians captured during November/December 2002
    Springall amphibians captured during march/April/May 2003

    Species
    Amphibian species captured (Source: Dataset developer)

    ValueDefinition
    AMGRAmbystoma gracile
    HYREHyla regilla
    PLDUPlethodon dunni
    RAAURana aurora
    RH sppRhyacotriton spp
    TAGRTaricha granulosa
    TDITEadult Dicamptodon tenebrosus
    ENESEnsatina eschscholtzii
    PLVEPlethodon vehiculum

    SVL
    Length of individual measured from tip of snout to posterior end of vent (Source: Dataset developer)

    Range of values
    Minimum:0.5 (blank indicates no measurement)
    Maximum:undetermined maximum
    Units:millimeters
    Resolution:0.5

    TL
    Total length of individual measured from tip of snout to end of tail (Source: Dataset developer)

    Range of values
    Minimum:0.5 (blank indicates no measurement)
    Maximum:undetermined maximum
    Units:millimeters
    Resolution:0.5

    Weight
    Weight of individual organism. Weight was taken before stomach contents sampled (if sampled). (Source: Dataset developer)

    Range of values
    Minimum:0.1 (blank indicates no measurement)
    Maximum:undetermined maximum
    Units:grams
    Resolution:0.1

    TerreHab.xls
    Microsoft Excel spreadsheet containing information on riparian habitat (Source: Microsoft)

    Cov:DWCov
    Visual estimate of proportion of plot covered by down wood (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    Cov:HangCov
    Visual estimate of proportion of plot covered by leaning down wood (did not touch the ground) (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    Cov:StuSnaCov
    Visual estimate of proportion of plot covered by a stump or snag (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    Cover:Ground
    Visual estimate of proportion of plot not covered by vegetation (the amount of bare ground) (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    Cover:Litter
    Visual estimate of proportion of plot covered by litter (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    Cover:Moss
    Visual estimate of proportion of plot covered by moss (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    Cover:Rock
    Visual estimate of proportion of plot covered by rock (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    Distance
    The distance of the downstream edge of plot from the edge of stream (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:30
    Units:meters

    Elev
    Elevation at site (Source: Dataset developer)

    Range of values
    Minimum:undetermined minimum
    Maximum:undetermined maximum
    Units:meters

    GrndCov
    Visual estimate of proportion of plot covered by non-shrubby vegetation (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    HerbHgt
    Measurement of highest point of non-shrubby vegetation in plot (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:undetermined maximum
    Units:centimeters

    HiShrub
    Shrubs > 1.5 m in height, measured with a moosehorn (view angle of 13 degrees). Squares within moosehorn grid that were covered by > 50% of shrubs were counted; converted to a proportion (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    HiShrub:ACCI
    Moosehorn measurement of proportion of plot cover by Acer circinatum (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    HiShrub:COCO
    Moosehorn measurement of proportion of plot cover by Corylus cornuta (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    HiShrub:CONU
    Moosehorn measurement of proportion of plot cover by Cornus nuttallii (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    HiShrub:GASH
    Moosehorn measurement of proportion of plot cover by Gaultheria shallon (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    HiShrub:HODI
    Moosehorn measurement of proportion of plot cover by Holodiscus discolor (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    HiShrub:OECE
    Moosehorn measurement of proportion of plot cover by Oemleria cerasiformis (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    HiShrub:RUSP
    Moosehorn measurement of proportion of plot cover by Rubus spectabilis (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    HiShrub:VACPA
    Moosehorn measurement of proportion of plot cover by Vaccinium parvifolium (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    Humidity
    The average of relative humidity taken at 30 minute intervals during the duration of the survey period/site/season (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:100
    Units:percent

    Lithology
    Rock type at site (Source: Dataset developer)

    ValueDefinition
    volcanic 
    marine 

    LoShrub
    Visual estimate of proportion of plot covered by shrubs <= 1.5 m in height (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    Overstory
    Measured with a moosehorn (view angle of 13 degrees). Squares within moosehorn grid that were covered by > 50% of overstory trees were counted. This was count was converted to a proportion. (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    Overstory:ACMA
    Moosehorn measurement of proportion of plot cover by Acer macrophyllum (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    Overstory:ALRU
    Moosehorn measurement of proportion of plot cover by Alnus rubra (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    Overstory:PSME
    Moosehorn measurement of proportion of plot cover by Pseudotsuga menziesii (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    Overstory:THPL
    Moosehorn measurement of proportion of plot cover by Thuja plicata (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    Overstory:TSHE
    Moosehorn measurement of proportion of plot cover by Tsuga heterophylla (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    Plot#
    Identifier for 1 x 2 m2 plots (Source: Dataset developer)

    Unbounded list of integers

    POMU
    Visual estimate of proportion of plot covered by Polystichum munitum (Sword fern) (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:1

    Site
    Study site name. Refers to the approximate 100 meter stream reach and includes bankfull width. (Source: Dataset developer)

    List of stream names

    Slope
    Average of 5 slope measurements taken with a clinometer (%) from 5 evenly spaced points along stream out to 30 m edge of "site" (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:undetermined maximum
    Units:percent

    SoilDepth
    Depth through litter/veg to mineral soil; taken at center of downslope edge of plot (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:undetermined maximum
    Units:centimeters
    Resolution:0.5

    Temp
    The average of air temperature taken at 30 minute intervals during the duration of the survey period/site/season (Source: Dataset developer)

    Range of values
    Minimum:undetermined minimum
    Maximum:undetermined maximum
    Units:degrees Celsius

    Trees
    Number of trees/plot (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:undetermined maximum

    Watershed
    Watershed area (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:undetermined maximum
    Units:hectares

    TerreInverts.xls
    Microsoft Excel spreadsheet containing information on terrestrial invertebrates sampled. Worksheets represent collection method (PitfallTrap or SoilSample) have same column headings. (Source: Microsoft)

    Distance
    The distance of trap or soil collection spot from stream (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:30
    Units:meters

    Season
    Season of sampling (Source: Dataset developer)

    ValueDefinition
    Fallsampling during October/November/December 2002
    Springsampling during March/April/May 2003

    Site
    Study site name. Refers to the approximate 100 meter stream reach and includes bankfull width. (Source: Dataset developer)

    List of stream names

    Taxa
    Taxonomic category of invertebrate. Those that we were unable to identify we classified as unknown. (Source: Dataset developer)

    Unbounded list of taxonomic categories

    Taxa:Count
    Number of invertebrates in that taxonomic category (Source: Dataset developer)

    Range of values
    Minimum:0
    Maximum:undetermined maximum

    Trap#
    Identifier for grid system for (randomly selected) trap placement or soil collection within site in order to estimate distance from stream. (Source: Dataset developer)

    List of integer indentifiers

    Ttype
    Trap type (Source: Dataset developer)

    ValueDefinition
    soil 
    pitfall 

  8. What biological taxa does this data set concern?

    Taxonomy:
    Keywords/Taxon:
    Taxonomic_Keyword_Thesaurus: None
    Taxonomic_Keywords: amphibians
    Taxonomic_Keywords: salamanders
    Taxonomic_Keywords: aquatic invertebrates
    Taxonomic_Keywords: terrestrial invertebrates
    Taxonomic_System:
    Classification_System/Authority:
    Classification_System_Citation:
    Citation_Information:
    Originator:
    National Oceanic and Atmospheric Administration (NOAA) , United States Geological Survey (USGS), Environmental Protection Agency (EPA) , Agriculture Research Service (ARS), Natural Resources Conservation Service (NRCS), National Museum of Natural History (NMNH)
    Publication_Date: 1997
    Title: ITIS (Integrated Taxonomic Identification System)
    Geospatial_Data_Presentation_Form: Database
    Other_Citation_Details:
    ITIS Taxonomic Serial Numbers (TSN) may be included under applicable common name.
    Online_Linkage: <http://www.itis.usda.gov/plantproj/itis/index.html>
    Identification_Reference:
    Citation_Information:
    Originator: Corkran, C.C and C. Thoms
    Publication_Date: 1996
    Title: Amphibians of Oregon, Washington, and British Columbia
    Geospatial_Data_Presentation_Form: book
    Publication_Information:
    Publication_Place: Edmonton, Alberta
    Publisher: Lone Pine Publishing
    Other_Citation_Details: pg. 175
    Identification_Reference:
    Citation_Information:
    Originator: Pojar, J., MacKinnon, A., and P. Alaback
    Publication_Date: 1994
    Title:
    Plants of the Pacific Northwest Coast: Washington, Oregon, British Columbia, and Alaska
    Geospatial_Data_Presentation_Form: book
    Publication_Information:
    Publication_Place: Redmond, Washington
    Publisher: Lone Pine Publishing
    Other_Citation_Details: 527 p
    Identification_Reference:
    Citation_Information:
    Originator: Borror, D.J., Triplehorn, C.A., and Johnson, N.F
    Publication_Date: 1989
    Title: An introduction to the study of insects
    Edition: Sixth
    Geospatial_Data_Presentation_Form: book
    Publication_Information:
    Publication_Place: Fort Worth, TX
    Publisher: Saunders College Publishing
    Identification_Reference:
    Citation_Information:
    Originator: Edited by R.W. Merrit and K.W. Cummins
    Publication_Date: 1996
    Title: An introduction to the aquatic insects of North America
    Edition: Third
    Geospatial_Data_Presentation_Form: book
    Publication_Information:
    Publication_Place: Dubuque, Iowa.
    Publisher: Kendall/Hunt Publishing Company
    Identification_Reference:
    Citation_Information:
    Originator: Chu, H. F., and L. K. Cutkomp
    Publication_Date: 1992
    Title: How to Know the Immature Insects
    Edition: Second
    Geospatial_Data_Presentation_Form: book
    Publication_Information:
    Publication_Place:
    Boston, Burr Ridge, Illinois, Dubuque, Iowa, New York, San Francisco, St. Louis
    Publisher: WCB/McGraw-Hill
    Taxonomic_Procedures:
    Invertebrates were extracted over a five day period by Berlese funnel traps (Oregon State University Department of Entomology) and preserved in 95% ethanol until identified. Aquatic invertebrates were identified to Order where possible. Terrestrial samples were pooled by site and season and invertebrates were identified to Order where possible.
    Taxonomic_Classification:
    Taxon_Rank_Name: Kingdom
    Taxon_Rank_Value: Animalia
    Taxonomic_Classification:
    Taxon_Rank_Name: Phylum
    Taxon_Rank_Value: Chordata
    Taxonomic_Classification:
    Taxon_Rank_Name: Sub Phylum
    Taxon_Rank_Value: Chordata
    Taxonomic_Classification:
    Taxon_Rank_Name: Class
    Taxon_Rank_Value: Amphibia


Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)

  2. Who also contributed to the data set?

    This study was produced through the Cooperative Forest Ecosystem Research Program (CFER), with funding provided by the United States Geological Survey’s Forest and Rangeland Ecosystem Science Center, the Oregon Department of Forestry, and by Bob and Phyllis Mace Watchable Wildlife Scholarship.

  3. To whom should users address questions about the data?

    Edge, Dr. W. Daniel
    Department of Fisheries and Wildlife
    Principal Investigator
    Dept. of Fisheries and Wildlife
    Oregon State University
    104 C Nash Hall
    Corvallis, OR 97331

    (541) 737-2910 (voice)
    (541) 737-3590 (FAX)
    Daniel.Edge@orst.edu


Why was the data set created?

This data set was developed as part of MS thesis research requirements in conjunction with the Cooperative Forestry Ecosystem Research (CFER) project. Study objectives were to 1) identify habitat characteristics with an emphasis on riparian vegetation associated with the presence of two salamander species and 2) to describe diet-habitat relationships, emphasizing riparian vegetation.


How was the data set created?

  1. What methods were used to collect the data?

    Method 0 of 1
    Type: Field

    AQUATIC SURVEYS We conducted aquatic surveys in July and October 2002, and June 2003 in ten, 2-m long transects in each stream. October sampling occurred before significant fall rain and associated leaf fall. Stream transects were eight m apart and spanned the bankfull width of the stream. During each of the three aquatic sampling periods, we measured microhabitat characteristics in five transects per stream. We measured active channel width across the upper, middle, and lower end of the transect. We measured stream depth at five evenly spaced points across the lower end of the transect. We used a moosehorn to measure the total shrub and overstory cover, then separately measured the three dominant shrub and overstory species over the wetted width of the transect. We took three moosehorn readings for each shrub and overstory variable; one from the center of the wetted width, and 10 cm from the water’s edge on each side of the stream. Multiple measurements taken within each transect were averaged for that transect. Transect gradient, upslope gradient (to 30 m), and the amount of area covered by down wood (>5 cm in diameter) were measured during the first aquatic sampling period only.

    TERRESTRIAL SURVEYS We used a pitfall grid that was installed in the center of each site and consisted of 30 traps in three rows of ten traps running parallel to the stream. We constructed pitfall traps with two, #10 tin cans taped together and placed into the ground with the edge of the can flush with the ground surface. Traps were covered when not in use. We randomly located 1- by 2-m quadrats (plots) within the site which were sampled once per season. In addition, we placed nine, 0.09-m2 untreated Douglas-fir coverboards and six, 1-m2 pieces of black plastic upstream and downstream of the pitfall trapping grid to augment terrestrial amphibian detections/captures (outside of the "site", i.e., the 100-m riparian area that paralleled the length of stream used for aquatic surveys). We conducted terrestrial amphibian surveys in fall 2002 and spring 2003 (the wettest times of the year). Due to unseasonably cool, dry weather in fall 2002, pitfalls were open for one trap night and 14 quadrats were searched at each site. In spring 2003, pitfalls were open for three consecutive nights at each site and checked each subsequent morning. In spring 2003, we searched a total of 44 quadrats per site over the 3 day survey period for amphibians and characterized vegetation and microhabitat components in 28 randomly selected quadrats over the same three-day sample period. We checked under cover objects daily during the survey period.

    INVERTEBRATE COLLECTION We collected aquatic benthic invertebrates using a 0.09-m2 surber sampler with a 500 µ mesh sieve at six randomly selected locations each aquatic sample period. Surber samples were stored in whirl packs in a 95% ethanol solution. In the lab, samples were pooled by site and season, sorted, and invertebrates were identified under 10-30x dissecting microscopes. We sampled terrestrial invertebrates at ten randomly located invertebrate pitfall traps within each study site. Invertebrate pitfall traps were constructed of 1-quart plastic containers and were open for the duration of the terrestrial survey period (one or three trap nights). At the end of each survey period, the container was capped and returned to the lab. We collected five soil samples, 15 by 15 by 5 cm, at random locations on the last day of the survey period for each site. Each sample included the surface vegetation and litter layer and 5 cm of soil. Invertebrates were extracted over a five day period by Berlese funnel traps (Oregon State University Department of Entomology) and preserved in 95% ethanol until identified. Aquatic invertebrates were identified to Order where possible. Terrestrial samples were pooled by site and season and invertebrates were identified to Order where possible.

    STOMACH SAMPLE PROCESSING We collected stomach samples from all amphibians captured, except from torrent salamanders (Rhyacotriton spp.) or larval tailed frogs (Ascaphus truei). In the lab, we photographed each stomach sample in a Petri dish and a ruler (for scale) and measured the surface area (mm2) covered by stomach contents (Image Pro Plus, version 4.5.0.29, Media Cybernetics, Inc software). We developed an index of stomach fullness by dividing stomach content surface area by the SVL of an individual, which allowed us to account for its size when making comparisons of stomach fullness. After photo measurement, we counted and identified prey items to Order where possible. We considered slugs and snails in Class Gastropoda as separate prey categories. We counted an invertebrate head found in a stomach sample as one invertebrate prey item.

    Reference:

  2. From what previous works were the data drawn?

  3. How were the data generated, processed, and modified?

    Date: Unknown (process 1 of 1)
    Original data collection. Process steps do not apply.

  4. What similar or related data should the user be aware of?


How reliable are the data; what problems remain in the data set?

  1. How well have the observations been checked?

    No tests for attribute accuracy were conducted.

  2. How accurate are the geographic locations?

  3. How accurate are the heights or depths?

  4. Where are the gaps in the data? What is missing?

    Only down wood (DW) in streams > 5 cm diameter were measured for instream (aquatic) wood cover. Only DW, stumps, or snags in riparian area > 10 cm diameter were included. Only streams that could be searched by hand, occurred in 2nd-growth forests were considered for inclusion in site selection process

  5. How consistent are the relationships among the observations, including topology?

    Data were carefully entered and proofed


How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?

Access_Constraints:
Research results are available after research results have been published.
Use_Constraints: Publishing data is not permitted without consent of data owner


Who wrote the metadata?

Dates:
Last modified: 15-Nov-2006
Last Reviewed: 07-Nov-2006
Metadata author:
Metadata Coordinator
U.S. Geological Survey Forest and Rangeland Ecosystem Science Center
3200 SW Jefferson Way
Corvallis, OR 97331

541-750-7343 (voice)
541-758-7761 (FAX)
george_lienkaemper@usgs.gov

Metadata standard:
FGDC Biological Data Profile of the Content Standard for Digital Geospatial Metadata (FGDC-STD-001.1-1999)


Generated by mp version 2.8.10 on Wed Nov 15 10:23:31 2006