Vegetation Classification and Mapping Project Report - USGS

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USGS-NPS Vegetation Mapping Program Colonial National Historical Park USNVC code Global/State Conservation Ranks BOWA DISTURBED, CULTURAL, EXOTIC VEGETATION Upland Forests and Shrublands Dense Hardwood Regeneration nonstandard x x x 0 Disturbed Acidic Slope Forest CEGL007726 GNA/SNA x 0 Disturbed Calcareous Forest nonstandard x x x 0 Early-Successional Loblolly Pine Forest CEGL006011 GNA/SNA x x 0 Golden Bamboo Shrubland CEGL008560 GNA/SNA x 0 Loblolly Pine - Hardwood Forest CEGL008462 GNA/SNA x x x 0 Loblolly Pine Plantation CEGL007179 GNA/SNA x x x x x x 0 Successional Black Locust Forest CEGL007279 GNA/SNA x 0 Successional Black Walnut Forest CEGL007879 GNA/SNA x x x 0 Successional Mixed Scrub nonstandard x x x x 0 Successional Red-cedar Forest CEGL006024 GNA/SNA x x x x 0 Successional Sweetgum Forest CEGL007216 GNA/SNA x x x 0 Successional Tree-of-Heaven Forest CEGL007191 GNA/SNA x x 0 Successional Tuliptree - Loblolly Pine Forest CEGL007521 GNA/SNA x 0 Successional Tuliptree Forest CEGL007221 GNA/SNA x x x x x 0 Successional Virginia Pine Forest CEGL002591 GNA/SNA x x x 0 Virginia Pine Plantation CEGL004730 GNA/SNA x 0 White Pine Plantation Wetland Vegetation CEGL007178 GNA/SNA x 0 Beaver Wetland Complex CEGL005082 G4G5/SNR x x x x 0 Successional River Birch - Red Maple Floodplain Forest CEGL006976 GNR/SNR x 0 Successional Tuliptree Floodplain Forest CEGL007330 GNA/SNA x 0 Disturbed Depressional Wetland nonstandard x 0 Disturbed Seepage Swamp nonstandard x 0 Disturbed Tidal Hardwood Swamp nonstandard x 0 Non-Riverine Saturated Forest - pine subtype nonstandard x 0 Successional Shrub Swamp Cultural Vegetation nonstandard x 0 Cultural Meadow CEGL006107 GNA/SNA x x x x x x x 0 Forested Earthworks nonstandard x x 0 Grazed Woodlot nonstandard x 0 Open Earthworks nonstandard x x 0 Semipermanent Impoundment Nonstandard x x x x 0 APCO FRSP RICH PETE COLO GEWA Plots in regional analysis 110
USGS-NPS Vegetation Mapping Program Colonial National Historical Park Appendix E. Definitions of global and subnational (state) conservation ranks. NatureServe and the Network of Natural Heritage Programs and Conservation Data Centers work together to assign conservation status ranks to elements of biodiversity (plants, animals, and ecological communities). These ranks have been developed using range-wide data collected by the Natural Heritage Network for nearly three decades and are critical in setting conservation priorities. Community types are ranked on a global (G), national (N), and subnational (S) scale of 1 to 5, with 1 indicating critical imperilment due to rarity, endemism, and/or threats, and 5 indicating little or no risk of extirpation or elimination. The primary ranking factors used in assessing the appropriate conservation status rank for an ecological community element are: (1) the total number of occurrences, and (2) the total area (acreage) of the element. Secondary ranking factors, such as the geographic range over which the element occurs, the threats to the occurrences, and the viability of the occurrences, also affect the rank. Additional factors that have been used in arriving at an assessment of a community’s range-wide (global) rank include the geographic range over which the type occurs, the long term decline of the type across this range, the degree of site specificity exhibited by the type, and the rarity across the range based on state ranks assigned by state Natural Heritage Programs. To learn more about Natural Heritage Methodology, go to http://www.natureserve.org/prodServices/heritagemethodology.jsp. 111
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Vegetation Classification and Mapping Project Report - USGS

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