| sni | |
Data format: Shapefile File or table name: sni Coordinate system: Universal Transverse Mercator Theme keywords: 24000, BIOLOGY, seabird nesting islands, significant wildlife habitat, Natural Resource Protection Act |
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| Abstract: SNI contains POLYGONS that represent NRPA (Natural Resource Protection Act) regulated coastal seabird nesting islands or portions thereof along the coast of Maine. This coverage is included in the statewide seabird nesting island database maintained by MDIFW. See metadata for "Seabird Islands (LURC)" for descriptions of seabird islands under LURC jurisdiction (available through MDIFW). Other seabird nesting islands may exist which do not qualify for regulation under NRPA. |
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Metadata elements shown with blue text are defined in the Federal Geographic Data Committee's (FGDC) Content Standard for Digital Geospatial Metadata (CSDGM). Elements shown with green text are defined in the ESRI Profile of the CSDGM. Elements shown with a green asterisk (*) will be automatically updated by ArcCatalog. ArcCatalog adds hints indicating which FGDC elements are mandatory; these are shown with gray text.
SNI contains POLYGONS that represent NRPA (Natural Resource Protection Act) regulated coastal seabird nesting islands or portions thereof along the coast of Maine. This coverage is included in the statewide seabird nesting island database maintained by MDIFW. See metadata for "Seabird Islands (LURC)" for descriptions of seabird islands under LURC jurisdiction (available through MDIFW). Other seabird nesting islands may exist which do not qualify for regulation under NRPA.
The data layer is a subset of the statewide coverage. Data is representative of periodic survey efforts since 1976.
Seabird Nesting Islands (SNI) have been formally adopted as a NRPA habitat through the MEDEP regulatory process. Description: Significant Wildlife Habitat Seabird Nesting islands are (a) An island, ledge, or portion thereof in tidal waters that has documentation of 25 or more: nests, adult seabirds associated with nests or combination thereof (single species or aggregate of different species) in any nesting season during, or since 1976; provided that the island, ledge, or portion thereof continues to have suitable nesting habitat. (b) An island, ledge, or portion thereof in tidal waters that has documentation of one or more nests of a seabird that is a Maine endangered or threatened species in any year during or since 1976 provided that the island, ledge, or portion thereof, continues to have suitable nesting habitat.
publication date
Users must assume responsibility in determining the usability of this data for their purposes. Digital maps retain the accuracy of their source materials. Providing public access to wildlife habitat data is not intended as a subsitute for consultation with MDIFW staff regarding permit applications or environmental reviews. The best use of data mapped at scales of 1:500,000 and 1:250,000 is in statewide planning and studies; at 1:100,000 in regional planning and studies; at 1:62,500 and 1:24,000 in detailed studies and local planning; and at 1:12,000 and 1:5,000 or larger scales in parcel level studies and detailed local planning. In the use of Maine GIS data, please check sources, scale, accuracy, currentness and other available information. Please confirm that you are using the most recent copy of both data and metadata from the Maine GIS Data Catalog. The Maine Office of Geographic Information Systems (MEGIS) provides notice of updates and corrections directly to the Maine GIS Technical Group and Maine GIS Users, through the MEGISTECH and MEGISUSER list servers. To subscribe please contact the MEGIS technical support line at (207) 287-6144. To request data correction in, or provide updates to, Maine GIS data a feedback form is available at http://megis.maine.gov/, or you may contact MEGIS directly. MEGIS is not responsible for local edits to data or metadata. Updates, corrections, and feedback, incorporated in the Maine GIS database are made in accordance with "Data Standards for Maine Geographic Information Systems", 2002, and coordinated by MEGIS in consultation with the Maine GIS Executive Council.
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Credit should always be given to the Maine Department of Inland Fisheries and Wildlife when the data is transferred or printed.
Spatial topology in SNI meets "Data Standards for Maine Geographic Information Systems", June 2002. The dataset is free of LABELERRORS and NODEERRORS. Spatial topology is clean and free of errors. The coverage has been BUILT with polygon topology.
Land Use Regulation Commission (LURC) regulated islands are not included.
The USGS 7.5 minute quadrangle name, within which SNI features are located, is part of the attribution of this dataset..
Recently MDIFW coastal island delineations were incorporated into HYD24. The data improved delineation of islands from the original 24k base COAST layer, added islands monitored by MDIFW (most fully or partially submerged at high tide) , added an ISLANDID, and a CIREG indicator for each island. The depiction, ISLANDID and NAME attribution of seabird nesting areas in SNI is based on these coastal island polygons..
Metadata imported.
Dataset copied.
Dataset copied.
area of polygon in square meters
software computed
MDIFW identification number/CIR (Coastal Island Registry) Number if applicable
island name
owner of Island - general description of ownership (ie: private, state, federal, etc.)
7.5' quad on which island is located
USGS
Internal feature number.
ESRI
alternate island name
Feature geometry.
ESRI
SNI is a POLYGON dataset that of NRPA regulated coastal seabird nesting islands or portions thereof along the coast of Maine. The dataset is attributed with the Maine Department of Inland Fisheries ISLANDID, NAME, alternate name, ownership type (ie: private, state, federal, etc.), USGS quadrangle name, and a ZONE identifier for NRPA protection.
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Users must assume responsibility to determine the usability of this data for their purpose. Although these data have been processed successfully on a computer system at the U.S. Department of Agriculture, no warranty expressed or implied is made by the Agency regarding the utility of the data on any other system, nor shall the act of distribution constitute any such warranty. The U.S. Department of Agriculture will warrant the delivery of this product in computer readable format, and will offer appropriate adjustment of credit when the product is determined unreadable by correctly adjusted computer input peripherals, or when the physical medium is delivered in damaged condition. Request for adjustment of credit must be made within 90 days from the date of this shipment from the ordering site. The U.S. Department of Agriculture, nor any of its agencies are liable for misuse of the data, for damage, for transmission of viruses, or for computer contamination through the distribution of these data sets. The U.S. Department of Agriculture (USDA) prohibits discrimination in all its programs and activities on the basis of race, color, national origin, sex, religion, age, disability, political beliefs, sexual orientation, or marital or family status. (Not all prohibited bases apply to all programs.)
ARC/INFO Export Format
An Arc/Info export file is an interchange format used to transfer spatial data, INFO data files, and other ESRI ARC/INFO files between various machine types. Export files have the suffix .e00 and contain, in fixed-length ASCII format, all spatial information available for each feature. The command IMPORT is available in A/I to convert the export file to original format, i.e. coverage, grid, or other spatial data file. Import will add a spatial data file and a related INFO file to a machine directory. ESRI's ArcView is packaged with an import utility called IMPORT71 for the same export file conversion. The utility is also available through the FREE software link on the MEGIS homepage under "Ordering Data" at http://apollo.ogis.state.me.us/ or from ESRI at http://www.esri.com/. CARE MUST BE TAKEN after import, not to separate the spatial information from its related INFO file. Since export files are in ASCII format make sure any file transfer method like FTP is executed under ASCII mode. Binary transfer will not work correctly.
MEGIS will soon make all data in the internet Data Catalog available in ESRI's ArcView shapefile format. This additional format will first be available for E911 data under the TOWNS tab. A shapefile is a simple non-topological format that stores the geometry and attribute information for a set of geographic features as a set of vector (point, line, polygon) coordinates. Shapefiles draw quickly and directly in ArcView; you can create your own data using the shapefile format; an existing ARC/INFO coverage can be converted to a shapefile; other spatial data formats can be converted to shapefiles. Three files are created for each shapefile: .shp stores the feature geometry (shape and location information); .shx stores the index of the feature geometry; .dbf a dBASE (TM) file stores the attribute information for the features. Other index files may be created to help speed analysis and query: these file formats are .sbn .sbx .ain .aix .fbn and .fbx. In addition you may find projection .prj, and metadata .xml, files associated with shapefiles. CAUTION: When you edit an existing theme or shapefile you are creating a new dataset or at least a new version of a dataset; give the dataset a new name or a version identifier to reflect your edits. Be prepared to fully document your sources and to both quantify and qualify the edits you make in order to facilitate coordination with other data sources. PLEASE NOTE: conversion to shapefile format changes some characters ( # - .) to underscores; item names over 10 characters are truncated. An effort will be made over time to consider these limitations in item names, and to eliminate the use of these characters in Maine GIS data development. It should not be assumed that a conversion from shapefile back to coverage would produce the same data file as found in the original coverage format. The results of such a conversion are greatly improved by the use of PRECISION setting DOUBLE, DOUBLE and careful management of tolerances.
See MEGIS website "Ordering Data" for further information.
MEGIS provides technical support for Maine GIS data, and consultation on application development, as time permits. You may call (207) 287-6144 with questions about Maine GIS data, or for an estimate or consultation on application development for your GIS environment.
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