NPSOnlineData PRWI Park Biology Vegetation Geoffrey SandersNCRN I&M Program Data Manager mailing and physical

4598 MacArthur Blvd

Washington DC 20007 202-342-1443 ext 230 geoffrey_sanders@nps.gov 8-4:30 e-mail or phone NPSCSDGM47065National Capital Region Inventory and Monitoring Program 20050501 http://science.nature.nps.gov/nrdataThe Biology Department of George Mason University conducted a floristic survey in Prince William Forest Park, in Prince William County, Virginia, during the 2003 and 2004 growing seasons. The purpose of the survey was to locate and identify as many of the naturally growing vascular plant species in the Park as possible, with a goal of listing 90 percent of these species. The 90 percent goal was estimated to be 652 species; 743 species were located and identified. With two varieties each found for four of the species, the taxa count was 747. No plants on the Virginia Rare Plant List were found; two Virginia Watch List plants were found. All plant locations were logged with a Global Positioning Receiver, and an indication of the site quality and the abundance of the plant at the site were noted. Many of the species were identified in the field with no voucher being collected. For the 747 taxa, 339 voucher specimens were collected; an additional 229 vouchers were collected and identified as duplicates. All voucher specimens are currently at GMU. It is concluded that most plant species expected at Prince William Forest Park are present, but in many cases they are relatively sparse and difficult to locate. The purpose of the survey was to locate and identify as many of the naturally growing vascular plant species in the Park as possible, with a goal of listing 90 percent of these species. 20030401 20030930 ground condition Complete None planned National Park Service Theme Category ThesaurusVegetation ISO 19115 Topic Categorybiota Inventory Plants Vascular Plants National Park System Unit Name Thesaurus Prince William Forest Park Virginia Prince William County Quantico National Park System Unit Code ThesaurusPRWI National Park System Unit Name ThesaurusPrince William Forest ParkNoneNoneGeoffrey M. SandersNCRN mailing and physical

4598 MacArthur Blvd.

Washington DC 20007 202-342-1443 ext. 230 geoffrey_sanders@nps.gov 8-4:30 Phone or e-mail Dr. Ted Bradley 20050501 https://science1.nature.nps.gov/naturebib/biodiversity/2008-10-1/PRWI_Vasc_Plnt_Inventory_Final report.pdf http://nrdata.nps.gov/networks/ncrn/prwi_vasc_plant_inv_meta.xmlNational Capital Region Inventory and Monitoring Program 20050501 Geoffrey SandersNCRN NCRN Data Manager mailing and physical

4598 MacArthur Blvd.

Washington DC 20007 202-342-1443 ext. 230 geoffrey_sanders@nps.gov 8-4:30 Phone or e-mail The National Park Service shall not be held liable for improper or incorrect use of the data described and/or contained herein. These data and related graphics (i.e. GIF or JPG format files) are not legal documents and are not intended to be used as such. The information contained in these data is dynamic and may change over time. The data are not better than the original sources from which they were derived. It is the responsibility of the data user to use the data appropriately and consistent within the limitations of geospatial data in general and these data in particular. The related graphics are intended to aid the data user in acquiring relevant data; it is not appropriate to use the related graphics as data. The National Park Service gives no warranty, expressed or implied, as to the accuracy, reliability, or completeness of these data. It is strongly recommended that these data are directly acquired from an NPS server and not indirectly through other sources which may have changed the data in some way. Although these data have been processed successfully on computer systems at the National Park Service, no warranty expressed or implied is made regarding the utility of the data on other systems for general or scientific purposes, nor shall the act of distribution constitute any such warranty. This disclaimer applies both to individual use of the data and aggregate use with other data.XLS 0.979 0.979 NPS Data Store Nonehttp://nrdata.nps.gov/networks/ncrn/prwi_vasc_plant_inv_data.xls20081001 Geoffrey M. SandersNCRN mailing and physical

4598 MacArthur Blvd.

Washingon DC 20007 202-342-1443 ext. 230 geoffrey_sanders@nps.gov 8-4:30 Phone or e-mail FGDC Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998 http://nrdata.nps.gov/profiles/NPS_Profile.xmlNPS NR and GIS Metadata Profile20081001EventIDUnique ID assigned to the sampling eventLocationIDUnique ID assigned to the location of sampling eventParkCode4 letter park acronymDateDateObserverInitials of those who were invovled in the sampling eventSite QualityQuality of the habitat at the sampling locationParkAreaGeneral description of the location of the sampling point in the parkUTMXEasting UTM UTMYNorthing UTMDatumGeographical Datum applied to the coordinatesEstHErrorEstimated horizontal errorFamilyTaxonimic famil of the plant observedSpeciesGenus and species of the observed plantCommonalityDescription of how often the plant was observedNativityIndicates whether the plant was native to the Norther VA/Washington DC areaSampleCodeIndicates whether the record was based on an observation (obs) or a voucher (Vou)VoucherNoThe field collection number assigned to the specimenPhotographIndicates whether a photograph was takenNotesDetailed description of where the observation occured200810011736270020081001