Occurrence record: HO24418

PreservedSpecimen of Gahnia microstachya | Slender Saw-sedge recorded on 1906-04-01

Dataset

Data provider Australia's Virtual Herbarium
Data resource HO AVH data
Institution Tasmanian Museum and Art Gallery
Supplied institution code "HO"
Collection Tasmanian Herbarium
Supplied collection code "HO"
Catalogue Number HO24418
Basis of record Preserved specimen
Preparations sheet
Collector Rodway, L.
Collecting number 933a
License CC-BY 4.0 (Int)
Occurrence status present

Event

Collecting date 1906-04-01
Supplied date "1906-04"
Date precision Day
Verbatim event date Apr 1906

Taxonomy

Scientific name Gahnia microstachya
Supplied scientific name "Gahnia microstachya Benth."
Taxon rank species
Common name Slender Saw-sedge
Kingdom Plantae
Phylum Charophyta
Class Equisetopsida
Order Poales
Family Cyperaceae
Genus Gahnia
Species Gahnia microstachya
Taxonomic issues No issues
Name match metric Exact match
The supplied name matched the name exactly.
Name parse type SCIENTIFIC
Scientific name authorship Benth.

Geospatial

Country Australia
State or Territory Tasmania
Locality Freycinet Peninsula
Latitude -42.165271
Supplied as: "-42.166667"
Longitude 148.317679
Supplied as: "148.316667"
Geodetic datum EPSG:4326
Supplied datum: "unknown"
Verbatim locality Freycinet Peninsula
Coordinate precision 0.016667
Coordinate uncertainty in metres 10000.0
Georeferenced by Tasmanian Herbarium (HO)
Verbatim SRS AGM66
Biome Marine
Country code AU

User flagged issues 

User Assertion Status:

    Data quality tests

    Test name Result
    Habitat incorrect for species Failed
    Incomplete collection date Warning
    Occurrence status assumed to be present Warning
    Coordinates converted to WGS84 Warning
    Basis of record not supplied Passed
    Basis of record badly formed Passed
    Invalid collection date Passed
    First of the month Passed
    Collector name unparseable Passed
    Missing catalogue number Passed
    Data are generalised Passed
    Collection code not recognised Passed
    Institution code not recognised Passed
    Missing taxonomic rank Passed
    Name not supplied Passed
    Name not recognised Passed
    Resource taxonomic scope mismatch Passed
    Invalid scientific name Passed
    Name not in national checklists Passed
    Decimal coordinates not supplied Passed
    Geodetic datum assumed WGS84 Passed
    Unrecognized geodetic datum Passed
    Decimal latitude/longitude conversion failed Passed
    Coordinates are transposed Passed
    Coordinates are out of range for species Passed
    Supplied coordinates are zero Passed
    Zero latitude Passed
    Zero longitude Passed
    Supplied country not recognised Passed
    Coordinate uncertainty not valid Passed
    Missing coordinate precision Passed
    Precision / range mismatch Passed
    Coordinate precision not valid Passed
    Coordinate uncertainty not specified Passed
    Location not supplied Passed
    Country inferred from coordinates Passed
    Supplied coordinates centre of state Passed
    Coordinates centre of country Passed
    Missing geodetic datum Passed
    Missing name of person who georeferenced the occurrence Passed
    Coordinates dont match supplied state Passed
    Show/Hide 8 missing properties
    Show/Hide 37 tests that have not been run

    Additional political boundaries information

    Area Management
    Fallow practice - dominant (area) Fallow less than 3 months
    Fallow practice - dominant (number) Fallow less than 3 months
    Global 200 priority ecoregions - Marine Southern Australian Marine
    Irrigation practice - dominant 6. Local knowledge
    NRM Regions 2010 South
    NRM Regions 2014 South
    NRM Regions 2015 South
    NRM Regions 2017 South NRM Region
    NRM Regions 2017 (Qld 2019) South NRM Region
    Stubble practice - dominant (area) Stubble ploughed in
    Stubble practice - dominant (number) Stubble ploughed in
    Tillage practice - dominant (area) 1-2 cultivations
    Tillage practice - dominant (number) 1-2 cultivations
    Area management
    National Landcare Program Management Units 2018 South NRM Region
    Biodiversity
    IMCRA 4 Regions Tasmanian Shelf Province
    IMCRA Meso-scale Bioregions Freycinet
    World Anthropogenic Biomes (2000) Remote rangelands
    Climate
    Agroclimatic classification of Australia Moisture availability high in winter-spring, moderate in summer, most plant growth in spring
    Marine
    Geomorphology of the Australian Margin and adjacent seafloor Shelf
    Global Seagrass Species Richness (2003) 3.00000000
    Marine Ecoregions of the World Bassian
    States including coastal waters Tasmania (including Coastal Waters)

    Environmental sampling for this location

    Area Management
    Natural resource management expenditure 3022633.0 $
    Biodiversity
    Acacia – Miller et al 2012 - 0.5 degree 0.6966
    Amphibians (global) – Pyron & Wiens 2011 - 0.5 degree 2.7782
    Endemism 0.018156897
    Endemism (Non-marine) 0.022873085
    Mammals – Fritz et al 2009 - 0.5 degree 0.2867
    Migratory species (2008) 13.0 frequency
    Occurrence Density 11191.0 frequency
    Shannon Diversity (H) 6.0881987 index
    Species Richness 1697.0 frequency
    Threatened species (2008) 12.0 frequency
    Climate
    2030A1BMk35M: Aridity index - annual mean 0.79556894
    2030A1BMk35M: Evaporation - month min 34.27158 mm
    2030A1BMk35M: Precipitation - annual mean 53.823463 mm
    2030A1BMk35M: Precipitation - driest month 37.197895 mm
    2030A1BMk35M: Precipitation - equinox seasonality ratio 1.0096598
    2030A1BMk35M: Precipitation - spring or autumn season 0.009597769
    2030A1BMk35M: Temperature - annual max mean 17.876535 degrees C
    2030A1BMk35M: Temperature - annual min mean 9.024255 degrees C
    2030A1BMk35M: Temperature - annual range 16.822113 degrees C
    Evaporation - average 14282.0 ml
    Evaporation - variability 6.0 %
    Precipitation - annual 680.0 mm
    Precipitation - annual (Bio12) 695.875 mm
    Precipitation - coldest quarter (Bio19) 168.875 mm
    Precipitation - driest period (Bio14) 9.5 mm
    Precipitation - driest quarter (Bio17) 153.5 mm
    Precipitation - seasonality (Bio15) 15.625 mm
    Precipitation - warmest quarter (Bio18) 180.75 mm
    Precipitation - wettest period (Bio13) 18.625 mm
    Precipitation - wettest quarter (Bio16) 209.625 mm
    Radiation - annual mean (Bio20) 13.725 MJ/m2/day
    Radiation - seasonality (Bio23) 46.0
    Radiation - warmest quarter (Bio26) 20.2125 MJ/m2/day
    Temperature - annual mean (Bio01) 12.5875 degrees C
    Temperature - annual range (Bio07) 16.824999 degrees C
    Temperature - coldest period min (Bio06) 4.425 degrees C
    Temperature - coldest quarter mean (Bio11) 9.075 degrees C
    Temperature - diurnal range mean (Bio02) 8.75 degrees C
    Temperature - driest quarter mean (Bio09) 10.5 degrees C
    Temperature - isothermality (Bio03) 0.51874995 %
    Temperature - seasonality (Bio04) 0.96375
    Temperature - warmest period max (Bio05) 21.2375 degrees C
    Temperature - warmest quarter (Bio10) 16.1125 degrees C
    Temperature - wettest quarter mean (Bio08) 14.9375 degrees C
    Wind run - annual mean 142.46635 km/day
    Distance
    Distance - to any water (weighted) 0.014142135 degrees
    Distance - to coast 0.0 km x 100
    Distance - to non-permanent water (weighted) 0.089999996 degrees
    Distance - to permanent water (weighted) 0.014142135 km
    Euclidean Distance to Coast (metres) 7753.2666 m
    Marspec Distance to Shore 1.0 km
    Remoteness index 10.179939
    Hydrology
    Drainage - average 1900.0 megalitres/5x5km/year
    Drainage - variability 100.0 %
    Runoff - average 282.0 megalitres/5x5km/year
    Water Observations From Space 0.0 Percentage
    Marine
    Marspec Annual Range in Sea Surface Salinity 0.32999998 100 x psu
    Marspec Annual Range in Sea Surface Temperature 5.5699997 100 x degrees C
    Marspec Annual Variance in Sea Surface Salinity 1.3199999 100 x psu
    Marspec Annual Variance in Sea Surface Temperature 3.9074 10,000 x degrees C
    Marspec Bathymetric Slope 0.0 10 x degrees
    Marspec Concavity -0.001 1000 x degrees
    Marspec East/West Aspect 0.71 radians
    Marspec Maximum Monthly Sea Surface Salinity 35.45 100 x psu
    Marspec Mean Annual Sea Surface Salinity 35.239998 100 x psu
    Marspec Mean Annual Sea Surface Temperature 14.16 100 x degrees C
    Marspec Minimum Monthly Sea Surface Salinity 35.12 100 x psu
    Marspec North/South Aspect 0.71 1 x radians
    Marspec Plan Curvature 0.0 x 10000
    Marspec Profile Curvature 1.0E-4 x 10000
    Marspec Sea Surface Temperature of the coldest ice-free month 11.849999 100 x degrees C
    Marspec Sea Surface Temperature of the warmest ice-free month 17.42 100 x degrees C
    Sea Surface Temperature - MODIS Terra 14.338132 Degrees C
    Substrate
    2030A1BMk35M: Water stress index - month max 81.0
    Bulk density 1.4598603 Mg/m^3
    Clay % 20.046926 %
    Hydrologic conductivity - average saturated 188.88889 mm/h
    Moisture Index - annual mean (Bio28) 0.72375
    Moisture Index - highest quarter mean (Bio32) 0.95875
    Nutrient status 1.1 index
    Ph - soil 4.0 ph
    Soil depth 0.6 m
    Soil pedality 2.3284917
    Water holding capacity 59000.0 mm
    Weathering Intensity V2 3.32435 Weathering Intensity Index
    Topography
    Aspect 123.0 degrees
    Averaged Topographic Relief 442.16666 metres
    Bathymetry and Elvation 9 sec 0.0 m
    Elevation 161.0 m
    Topographic Slope (degrees) 28.455267 degrees
    Topographic relief 0.0 m
    Topographic slope (%) 9.143947 %
    Vegetation
    Enhanced Vegetation Index (2012-03-05) 0.0269 EVI
    Fraction of Photosynthetically Active Radiation (fPAR) 18.0 %
    Gross Primary Productivity (2012-03-13) 0.0 kg C/m^2
    Leaf Area Index (LAI) - 2012-03-05 0.4 m^2 plant / m^2 ground
    NDVI Mean 40.0 NDVI x 100
    NPP Mean 16.0 tonnes/ha/yr
    Normalized Difference Vegetation Index (2012-03-05) 0.2165 NDVI