2015 Mahoney Island Vascular Plant Botanical Inventory

2015 Mahoney Island Vascular Plant Botanical Inventory 

Brooklin, Hancock County, Maine, United States.
Mahoney Island (CIR 59-933)

Inventory Conducted: Field work was conducted during the 2015 growing seasons on the following dates: 25 June, 24 July, 24 August, and 17 September.

Maine Natural History Observatory
Lead Botanist: Glen Mittelhauser
Contact: info@mainenaturalhistory.org
Funding Sources: Maine Coastal Islands National Wildlife Refuge

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Permissions and Data Use

These data are made publicly available to encourage transparency, long-term preservation, and reuse in ecological research, conservation planning, and education. These inventories represent baseline conditions at the time of survey and should be interpreted with appropriate consideration of survey year, methods, and observer effort. Users are welcome to download, analyze, and incorporate these data into derivative works, including independent analyses and publications. Any use of these data must acknowledge the original source by citing the website where the data are archived and giving credit for the historical data to Glen Mittelhauser, Maine Natural History Observatory. Users are encouraged, though not required, to notify Maine Natural History Observatory of substantial or interpretive uses of the dataset, particularly those leading to publication.

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File list and description of each file

1) Core file
File Name: MahoneyIsland2015_EventCore_GridCells.csv
    Description: Using GIS software, we built a virtual 30x30 m grid across the island and into the intertidal zone. The grid was oriented following true compass bearings, with the UTM coordinates (NAD83, Zone 19). This file contains coordinates only for the grid cells that contained vascular plants.

GRID CELLS
2) Extension of Core file
File Name: MahoneyIsland2015_Occurrences_GridCells.csv
    Connects to: MahoneyIsland2015_EventCore_GridCells.csv linked using the gridCell column.
    Description:  Lists species of vascular plants observed with estimates of maximum categorical abundance of each species within each 30x30 m grid cell.  Abundance categories were as follows:  common = species with a wide distribution in the grid cell, occurring in large numbers.; occasional = species with a scattered distribution throughout the grid cell; uncommon = species not widely distributed and not often encountered in the grid cell; and rare = species usually restricted to small areas, specialized habitats, or consisting of 1 or 2 very small "populations" in the grid cell.  

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Column Definitions

Name: gridCell 
Type: Integer
Description: Identifier for the 30x30 m grid cells.
Maps to term(s) in Darwin Core: eventID (http://rs.tdwg.org/dwc/terms/eventID)

Name: verbatimCoordinateSystem 
Type: String
Description: The coordinate format for the location.
Maps to term(s) in Darwin Core: verbatimCoordinateSystem (http://rs.tdwg.org/dwc/terms/verbatimCoordinateSystem)

Name: UTMx(Easting) 
Type: Double
Description: UTM X coordinate.
Maps to term(s) in Darwin Core:
 
Name: UTMy(Northing) 
Type: Double
Description: UTM Y coordinate.
Maps to term(s) in Darwin Core: 

Name: geodeticDatum 
Type: String
Description: The geodetic datum upon which the geographic coordinates given are based.
Maps to term(s) in Darwin Core: geodeticDatum (http://rs.tdwg.org/dwc/terms/geodeticDatum)

Name: UTMZone 
Type: String
Description: 
Maps to term(s) in Darwin Core: 

Name: year 
Type: Integer
Description: The four-digit year in which the survey occurred.
Maps to term(s) in Darwin Core: year (http://rs.tdwg.org/dwc/terms/year)

Name: samplingProtocol 
Type: String
Description: The names of, references to, or descriptions of the methods or protocols of event.
Maps to term(s) in Darwin Core: samplingProtocol (http://rs.tdwg.org/dwc/terms/samplingProtocol)

Name: island 
Type: String
Description: The name of the island on which the location occurs.
Maps to term(s) in Darwin Core: island (http://rs.tdwg.org/dwc/terms/island)

Name: scientificName 
Type: String
Description: The full scientific name, with authorship and date information if known.  All nomenclature follows Haines (2011)
Maps to term(s) in Darwin Core: scientificName (http://rs.tdwg.org/dwc/terms/scientificName)

Name: family 
Type: String
Description: The full scientific name of the family in which the Taxon is classified.
Maps to term(s) in Darwin Core: family (http://rs.tdwg.org/dwc/terms/family)

Name: vernacularName
Type: String
Description: A common or vernacular name.
Maps to term(s) in Darwin Core: vernacularName (http://rs.tdwg.org/dwc/terms/vernacularName)

Name: statusInMaine
Type: String
Description: Native = Considered native to Maine; Exotic = considered non-native to Maine.
Maps to term(s) in Darwin Core: 

Name: measurementType
Type: String
Description: The nature of the measurement, fact, characteristic, or assertion.
Maps to term(s) in Darwin Core: measurementType (http://rs.tdwg.org/dwc/terms/measurementType)

Name: measurementValueAbundance
Type: String
Description: C = common = species with a wide distribution in the grid cell, occurring in large numbers. O = occasional = species with a scattered distribution throughout the grid cell U = uncommon = species not widely distributed and not often encountered in the grid cell.  R = rare = species usually restricted to small areas, specialized habitats, or consisting of 1 or 2 very small "populations" in the grid cell.  
Maps to term(s) in Darwin Core: measurementValue (http://rs.tdwg.org/dwc/terms/measurementValue)

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File type information

.csv files:
- linesTerminatedBy: \n
- fieldsTerminatedBy: ;

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Coordinate System 

Using GIS software, we built a virtual 30x30 m grid across the island and into the intertidal zone. The grid was oriented following true compass bearings, with the UTM coordinates (NAD83, Zone 19).

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Citation instructions

Author: Glen Mittelhauser, Maine Natural History Observatory
Title: 2015 Mahoney Island Vascular Plant Botanical Inventory
Year of publication: 2016

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Licensing: CC-BY