Lesley Sneddon, NatureServe 20071231 vector digital data http://www1.usgs.gov/vip/sair/sairplot.zip doi:10.5066/F7N014H8 This shapefile includes the locations of vegetation classification sampling plots used to develop an association-level vegetation classification of Saugus Iron Works National Historic Site by NatureServe for the National Park Service. Vegetation sampling was performed by NatureServe. The shapefile depicts point locations of vegetation classification sampling points. Locations were recorded with a WAAS-enabled Garmin GPS map 60CSX unit. 200407 ground condition Complete None planned Saugus Iron Works National Historic Site and environs (Saugus, MA 01906) -71.007871 -71.007032 42.468833 42.467658 National Park Service Theme Category Thesaurus vegetation ISO 19115 Topic Category biota none vegetation map vegetation association National Park Service vegetation classification vegetation alliance vegetation formation National Park System Unit Name Thesaurus Saugus Iron Works National Historic Site National Park System Unit Code Thesaurus SAIR none Saugus Iron Works National Historic Site Saugus, MA none 2004 None Standardized National Vegetation Classification System vegetation classification alliance community association Kingdom Plantae None None Lesley Sneddon NatureServe Senior Regional Ecologist mailing address

11 Avenue de Lafayette, 5th Floor

Boston MA 02111 USA 617.542.1908 x 245 617.542.1602 lesley_sneddon@natureserve.org 9am-5pm http://www1.usgs.gov/vip/sair/sairplots.pdf Locations of vegetation plots; low resolution for web browsing. PDF Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.2.5.1450 Lesley Sneddon, NatureServe Ery Largay, NatureServe Greg Podneisinski Stephanie Perles 20071231 Report ESRI point geometry Point locations for all 4 plots are included. Each plot is represented by one point. All points fall within the mapped vegetation association polygons, except SAIR.3 which falls just outside the park boundary (~1.54 m). This was largely unintentional and was a result of both poorly marked park boundaries and the error of the GPS unit used to collect the plot location data (pers comm with Ery Largay). All vegetation plot sampling followed the USGS/NPS Vegetation Mapping Program protocols (The Nature Conservancy and Environmental Systems Research Institute 1994b). After initial reconnaissance of Saugus Iron Works National Historic Site and previous vegetation mapping efforts at this and other parks, we concluded that approximately four plots would be sufficient to capture the range of vegetation types. For some communities, such as the Central Atlantic Freshwater Subtidal River Bed and Reed Canary grass Grassland, the patch sizes were too small to accommodate plot sampling. Within each polygon selected for sampling, a plot was established in an area that was most representative of the existing vegetation association (Mueller-Dombois and Ellenberg 1974). All vegetation data were collected following NatureServe's accepted natural heritage sampling protocols (Strakosch-Walz 2000), with 20-m x 20-m plots in forests and woodlands, 10-m x 10-m plots in shrublands, and 5-m x 5-m plots in herbaceous vegetation. In some cases, where the polygons were too narrow to reasonably accommodate standard plot sizes, the plots were adjusted accordingly, e.g., rectangular plots rather than square plots were used to accommodate linear stands. Abbreviated instructions for completing the field form and definitions of the fields can be found in the NBS/NPS Vegetation Mapping Program: Field Methods for Vegetation Mapping manual (The Nature Conservancy and Environmental Systems Research Institute 1994b). The vegetation was visually divided into eight strata: emergent trees (variable height), tree canopy (variable height), tree subcanopy (>5m in height), tall shrub (2-5m), short shrub (<2m), herbaceous, non-vascular, and vines. The percent cover was estimated for each species in each stratum using modified Braun - Blanquet cover classes (Strakosch-Walz 2000). Specimens of species that were not identifiable in the field were collected for later identification. In addition to floristic information, the following environmental variables were recorded at each plot: slope, aspect, topographic position, hydrologic regime, soil stoniness, average soil texture, and soil drainage. Any unvegetated area of the plot was characterized by the exposed substrate. Notes were taken on the plot representativeness of the surrounding vegetation and any other significant environmental information, such as landscape context, herbivory, stand health, recent disturbance, or evidence of historic disturbance. The vegetation profile and topographic position were sketched in cross-section to represent the location and setting of the plot. A digital photograph of each plot was also taken. The location of each plot was recorded with a global positioning system (GPS) unit, with the datum set to North American 1983 (Conus) and the coordinate system set to Universal Trans-Mercator (UTM) zone 19. Plot sampling was conducted in the summer of 2003 by NatureServe. Plot forms were crosswalked to the National Vegetaiton Classification System by NatureServe's Senior Regional Ecologist, Lesley Sneddon. 2004 Vector Entity point 4 Universal Transverse Mercator 19 0.999600 -69.000000 0.000000 500000.000000 0.000000 coordinate pair 0.000001 0.000001 meters North American Datum of 1983 Geodetic Reference System 80 6378137.000000 298.257222 SAIR_Veg_Plots_2004 Attribute table for shapefile of vegetation classification sample plot locations for Saugus Iron Works National Historic Park NatureServe FID Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. Shape Feature geometry. ESRI Coordinates defining the features. PLOT_CODE Unique ID that relates this spatial data layer to the Plots table in the PLOTS (MS Access) database. NPS SAIR.1 SAIR.4 Y_PROJ projected y coordinate in UTM Zone 19 NatureServe 4703655 4703784 X_PROJ projected X coordinate in UTM Zone 19 NatureServe 334936 335002 USGS/CSS/Core Science Analytics and Synthesis USGS-NPS Vegetation Characterization Program Coordinator mailing and physical address

Denver Federal Center, Building 810, MS 302

Denver Colorado 80225 (303) 202-4220 303-202-4219 gs-b-npsveg@usgs.gov Downloadable Data The U.S. Geological Survey and 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 (if available) 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. Any related graphics (if available) are intended to aid the data user in acquiring relevant data; it is not approriate to use the related graphics as data. The U.S. Geological Survey and 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 U.S. Geological Survey and National Park Service servers and not indirectly through other sources which may have changed the data in some way. Although these data have been processed successfully on a computer system at the U.S. Geological Survey, no warranty expressed or implied is made regarding the utility of the data on another system or 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. It is also strongly recommended that careful attention be paid to the contents of the metadata file associated with these data. Mention of trade names or commercial products in this metadata report does not constitute endorsement or recommendation for use by the U. S. Department of the Interior, U. S. Geological Survey and National Park Service. HTML http://www.usgs.gov/core_science_systems/csas/vip/parks/sair.html Internet Access None contact Distributor 20080505 20100615 USGS/CSS/Core Science Analytics and Synthesis USGS-NPS Vegetation Characterization Program Coordinator mailing and physical address

Denver Federal Center, Building 810, MS 302

Denver Colorado 80225 (303) 202-4220 303-202-4219 gs-b-npsveg@usgs.gov FGDC Biological Data Profile of the Content Standard for Digital Geospatial Metadata FGDC-STD-001.1-1999 http://www.usgs.gov/core_science_systems/csas/metadata/index.html