It includes both historically and recently documented occurrences. It reflects data on known occurrences of rare plant species and rare ecological communities compiled in the Natural Heritage Database as of November 2009. ![]() The Natural Heritage Grid Map is not a complete record of rare and endangered plant species habitat. NJ Department of Environmental Protection, If additional information is needed regarding localized areas within a cell, a Natural Heritage Database search can be requested by contacting the Office of Natural Lands Management at: An associated data table may be linked or related to the NHPGRID table in order to display information about the individual occurrences of rare plant species and rare ecological communities within any cell. By consulting the map, users can do broad scale analysis of potentially sensitive areas to determine the generalized location of rare plant species and rare ecological community occurrences. The Natural Heritage Grid Map was produced to provide a general portrayal of the geographic locations of rare plant species and rare ecological communities for the entire state without providing sensitive detailed information. An associated data table can be linked or related to the NHPGRID table in order to display information about the individual rare plant species/ecological community occurrences within any cell. If a rare plant species or ecological community has been documented from anywhere within a cell, the entire cell will be coded as containing an occurrence of a rare plant species/ecological community. The Natural Heritage Grid Map was produced using computer-generated vector-based polygons that divide the boundary lines of each USGS 1:24,000 scale topographic map into 100 grid cells, each cell being between 358 and 372 acres in size. It does not contain data for animal species. The Natural Heritage Grid Map is a geographic information system (GIS) file that provides a general portrayal of the geographic locations of rare plant species and rare ecological communities for the entire state without providing sensitive detailed information. Through its Natural Heritage Database, the Office of Natural Lands Management (ONLM) documents rare plant species and rare ecological community habitat to inform decision-makers who need to address the conservation of natural resources. ![]() Natural Heritage Grid Map for New Jersey, Edition 200911 (Grid_NHP)Įdition: Geospatial_Data_Presentation_Form: vector digital data Publication_Information: Publication_Place: Trenton, New Jersey Publisher: NJ Department of Environmental Protection (NJDEP) Online_Linkage: Online_Linkage: Description: Abstract: NJ Department of Environmental Protection (NJDEP), Office of Natural Lands Management (ONLM) Identification_Information: Citation: Citation_Information: Originator: Natural Heritage Grid Map for New Jersey, Edition 200911 (Grid_NHP) Natural Heritage Grid Map for New Jersey, Edition 200911 (Grid_NHP)
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