085-BIGS-0001P
» Citation URL: http://vegbank.org/cite/urn:lsid:cvs.bio.unc.edu:observation:12640-{9E5DB8BC-6648-47B8-9613-7B5F77CEF59F} » Citing info
Plot ID Fields:
Author Plot Code	085-BIGS-0001P
Author Observation Code	085-BIGS-0001P
Location Fields:	MAP: Google | Yahoo | TopoZone | MapQuest
Location Accuracy	25 m
Confidentiality Status	100 km radius (nearest degree)
Latitude	37 º
Longitude	-81 º
State or Province	Virginia
Named Places	county: Grayson region|state|province: Virginia
Layout Fields:
DSG Polygon	6.25 x 16 m
Area	100 m²
Permanence	not permanent
Environment Fields:
Elevation	799 m
Slope Aspect	(n/a, flat) º
Slope Gradient	2 º
Topographic Position	plain/level/bottom
Landform	seep/swale/non-alluvial bottom
Hydrologic Regime	non-tidal - saturated
Soil Moisture Regime	subhydric
Soil Drainage	poorly drained
Methods Fields:
Observation Start Date	25-Jul-2000
Observation End Date	25-Jul-2000
Project	Virginia Heritage
Cover Method	Carolina Vegetation Survey
Stratum Method	No Strata
Method Narrative	Intensive Virginia Division of Natural Heritage, see http://www.dcr.virginia.gov/natural_heritage/documents/nh_plotform_instructions.pdf
Overall Taxon Cover Values are Automatically Calculated?	no
Stem Observation Area	100 m²
Plot Quality Fields:
Plot Validation Level	(2) classification plot: sufficient for inclusion in a classification revision
Overall Plot Vegetation Fields:
Field Height	1 m
Tree Cover	5 %
Shrub Cover	40 %
Field Cover	95 %
Nonvascular Cover	2 %
Misc Fields:
Observation Narrative	This plot represents Fleming and Moorhead's plot 2 (subsequently identified as BSB3; now BIGS001S), in the southern of the two fen openings at Big Spring Bog NAP. Plot extended from original dimensions of 5 x 15 m to conform to standard size of modules; center of plot (marked by rebar stake) remained fixed. As a result additional upland species (e.g., Kalmia carolina, Pinus rigida) were encountered. The vegetation of this fen had evidently changed considerably during the 1990's and by 2000 several invasive species severely threatened the light-demanding rare plants. Most notably, Dichanthelium dichotomum, Osmunda regalis var. spectabilis, and O. cinnamomea had experienced significant increases in cover, and the opening appeared to be shrinking due to expansion of adjacent woody vegetation. What Rawinski had described in 1990 as a 300-500 sq. m opening could barely contain a 100 sq. m plot in 2000. In addition seedlings of Acer rubrum and Pinus strobus seemed to be invading the interior of the fen. In response emergency management removed woody vegetation and increased the size of the opening ca. threefold. Frequent monitoring of population dynamics, hydrology, and light levels is clearly warranted.

Taxa occurring on this plot-observation
Change plant label: --Choose a value-- Author's plant name Original Interpretation, full Scientific Name Original Interpretation, Scientific Name without authors Original Interpretation, USDA Code Original Interpretation, Common Name Current Interpretation, full Scientific Name Current Interpretation, Scientific Name without authors Current Interpretation, USDA Code Current Interpretation, Common Name
Change Strata Shown: --choose one-- show strata (no strata on this plot) show overall cover show strata + overall
ord Author Plant Name Original Interpretation, full Scientific Name Original Interpretation, Scientific Name without authors Original Interpretation, Common Name Original Interpretation, USDA Code Current Interpretation, full Scientific Name Current Interpretation, Scientific Name without authors Current Interpretation, Common Name Current Interpretation, USDA Code Stratum Cover Original Cover Code Basal Area Biomass Inference Area Stems: Stem Diameters (graphically): 1 Dichanthelium dichotomum Dichanthelium dichotomum **   Dichanthelium dichotomum **   Dichanthelium dichotomum **   Dichanthelium dichotomum **   Dichanthelium dichotomum **   Dichanthelium dichotomum **   Dichanthelium dichotomum **   Dichanthelium dichotomum **   -all-   37.5 % 7       -none- 2 Rubus hispidus Rubus hispidus **   Rubus hispidus **   Rubus hispidus **   Rubus hispidus **   Rubus hispidus **   Rubus hispidus **   Rubus hispidus **   Rubus hispidus **   -all-   17.5 % 6       -none- 3 Solidago uliginosa var. uliginosa Solidago uliginosa var. uliginosa **   Solidago uliginosa var. uliginosa **   Solidago uliginosa var. uliginosa **   Solidago uliginosa var. uliginosa **   Solidago uliginosa var. uliginosa **   Solidago uliginosa var. uliginosa **   Solidago uliginosa var. uliginosa **   Solidago uliginosa var. uliginosa **   -all-   17.5 % 6       -none- 4 Acer rubrum Acer rubrum **   Acer rubrum **   Acer rubrum **   Acer rubrum **   Acer rubrum **   Acer rubrum **   Acer rubrum **   Acer rubrum **   -all-   17.5 % 6       DBH DBH err Ht. Ht. Err # 0.5 cm ± 0.5 cm     12 stem(s) 1.75 cm ± 0.75 cm     9 stem(s) 3.75 cm ± 1.25 cm     2 stem(s) 7.5 cm ± 2.5 cm     1 stem(s) 5 Pinus strobus Pinus strobus **   Pinus strobus **   Pinus strobus **   Pinus strobus **   Pinus strobus **   Pinus strobus **   Pinus strobus **   Pinus strobus **   -all-   17.5 % 6       DBH DBH err Ht. Ht. Err # 0.5 cm ± 0.5 cm     6 stem(s) 1.75 cm ± 0.75 cm     1 stem(s) 3.75 cm ± 1.25 cm     4 stem(s) 7.5 cm ± 2.5 cm     1 stem(s) 6 Sanguisorba canadensis Sanguisorba canadensis **   Sanguisorba canadensis **   Sanguisorba canadensis **   Sanguisorba canadensis **   Sanguisorba canadensis **   Sanguisorba canadensis **   Sanguisorba canadensis **   Sanguisorba canadensis **   -all-   17.5 % 6       -none- 7 Osmunda spectabilis Osmunda spectabilis **   Osmunda spectabilis **   Osmunda spectabilis **   Osmunda spectabilis **   Osmunda spectabilis **   Osmunda spectabilis **   Osmunda spectabilis **   Osmunda spectabilis **   -all-   17.5 % 6       -none- 8 Alnus serrulata Alnus serrulata **   Alnus serrulata **   Alnus serrulata **   Alnus serrulata **   Alnus serrulata **   Alnus serrulata **   Alnus serrulata **   Alnus serrulata **   -all-   7.5 % 5       DBH DBH err Ht. Ht. Err # 0.5 cm ± 0.5 cm     3 stem(s) 9 Vaccinium macrocarpon Vaccinium macrocarpon **   Vaccinium macrocarpon **   Vaccinium macrocarpon **   Vaccinium macrocarpon **   Vaccinium macrocarpon **   Vaccinium macrocarpon **   Vaccinium macrocarpon **   Vaccinium macrocarpon **   -all-   7.5 % 5       -none- 10 Spiraea tomentosa Spiraea tomentosa **   Spiraea tomentosa **   Spiraea tomentosa **   Spiraea tomentosa **   Spiraea tomentosa **   Spiraea tomentosa **   Spiraea tomentosa **   Spiraea tomentosa **   -all-   7.5 % 5       -none- 11 Eleocharis tenuis Eleocharis tenuis **   Eleocharis tenuis **   Eleocharis tenuis **   Eleocharis tenuis **   Eleocharis tenuis **   Eleocharis tenuis **   Eleocharis tenuis **   Eleocharis tenuis **   -all-   3.5 % 4       -none- 12 Osmundastrum cinnamomeum var. cinnamomeum Osmundastrum cinnamomeum var. cinnamomeum **   Osmundastrum cinnamomeum var. cinnamomeum **   Osmundastrum cinnamomeum var. cinnamomeum **   Osmundastrum cinnamomeum var. cinnamomeum **   Osmundastrum cinnamomeum var. cinnamomeum **   Osmundastrum cinnamomeum var. cinnamomeum **   Osmundastrum cinnamomeum var. cinnamomeum **   Osmundastrum cinnamomeum var. cinnamomeum **   -all-   3.5 % 4       -none- 13 Vaccinium fuscatum Vaccinium fuscatum **   Vaccinium fuscatum **   Vaccinium fuscatum **   Vaccinium fuscatum **   Vaccinium fuscatum **   Vaccinium fuscatum **   Vaccinium fuscatum **   Vaccinium fuscatum **   -all-   3.5 % 4       DBH DBH err Ht. Ht. Err # 0.5 cm ± 0.5 cm     6 stem(s) 14 Viola cucullata Viola cucullata **   Viola cucullata **   Viola cucullata **   Viola cucullata **   Viola cucullata **   Viola cucullata **   Viola cucullata **   Viola cucullata **   -all-   1.5 % 3       -none- 15 Thelypteris palustris var. pubescens Thelypteris palustris var. pubescens **   Thelypteris palustris var. pubescens **   Thelypteris palustris var. pubescens **   Thelypteris palustris var. pubescens **   Thelypteris palustris var. pubescens **   Thelypteris palustris var. pubescens **   Thelypteris palustris var. pubescens **   Thelypteris palustris var. pubescens **   -all-   1.5 % 3       -none- 16 Aronia arbutifolia Aronia arbutifolia **   Aronia arbutifolia **   Aronia arbutifolia **   Aronia arbutifolia **   Aronia arbutifolia **   Aronia arbutifolia **   Aronia arbutifolia **   Aronia arbutifolia **   -all-   1.5 % 3       DBH DBH err Ht. Ht. Err # 0.5 cm ± 0.5 cm     4 stem(s) 17 Parnassia grandifolia Parnassia grandifolia **   Parnassia grandifolia **   Parnassia grandifolia **   Parnassia grandifolia **   Parnassia grandifolia **   Parnassia grandifolia **   Parnassia grandifolia **   Parnassia grandifolia **   -all-   0.505 % 2       -none- 18 Cinna arundinacea Cinna arundinacea **   Cinna arundinacea **   Cinna arundinacea **   Cinna arundinacea **   Cinna arundinacea **   Cinna arundinacea **   Cinna arundinacea **   Cinna arundinacea **   -all-   0.505 % 2       -none- 19 Helenium brevifolium Helenium brevifolium **   Helenium brevifolium **   Helenium brevifolium **   Helenium brevifolium **   Helenium brevifolium **   Helenium brevifolium **   Helenium brevifolium **   Helenium brevifolium **   -all-   0.505 % 2       -none- 20 Houstonia caerulea Houstonia caerulea **   Houstonia caerulea **   Houstonia caerulea **   Houstonia caerulea **   Houstonia caerulea **   Houstonia caerulea **   Houstonia caerulea **   Houstonia caerulea **   -all-   0.505 % 2       -none- 21 Oxypolis rigidior Oxypolis rigidior **   Oxypolis rigidior **   Oxypolis rigidior **   Oxypolis rigidior **   Oxypolis rigidior **   Oxypolis rigidior **   Oxypolis rigidior **   Oxypolis rigidior **   -all-   0.505 % 2       -none- 22 grass sp. grass sp. **   grass sp. **   grass sp. **   grass sp. **   grass sp. **   grass sp. **   grass sp. **   grass sp. **   -all-   0.505 % 2       -none- 23 Quercus coccinea Quercus coccinea **   Quercus coccinea **   Quercus coccinea **   Quercus coccinea **   Quercus coccinea **   Quercus coccinea **   Quercus coccinea **   Quercus coccinea **   -all-   0.505 % 2       -none- 24 Vaccinium corymbosum Vaccinium corymbosum **   Vaccinium corymbosum **   Vaccinium corymbosum **   Vaccinium corymbosum **   Vaccinium corymbosum **   Vaccinium corymbosum **   Vaccinium corymbosum **   Vaccinium corymbosum **   -all-   0.505 % 2       -none- 25 Sabatia campanulata Sabatia campanulata **   Sabatia campanulata **   Sabatia campanulata **   Sabatia campanulata **   Sabatia campanulata **   Sabatia campanulata **   Sabatia campanulata **   Sabatia campanulata **   -all-   0.505 % 2       -none- 26 Lyonia ligustrina var. ligustrina Lyonia ligustrina var. ligustrina **   Lyonia ligustrina var. ligustrina **   Lyonia ligustrina var. ligustrina **   Lyonia ligustrina var. ligustrina **   Lyonia ligustrina var. ligustrina **   Lyonia ligustrina var. ligustrina **   Lyonia ligustrina var. ligustrina **   Lyonia ligustrina var. ligustrina **   -all-   0.505 % 2       -none- 27 Symphyotrichum sp. nov. Symphyotrichum sp. nov. **   Symphyotrichum sp. nov. **   Symphyotrichum sp. nov. **   Symphyotrichum sp. nov. **   Symphyotrichum sp. nov. **   Symphyotrichum sp. nov. **   Symphyotrichum sp. nov. **   Symphyotrichum sp. nov. **   -all-   0.505 % 2       -none- 28 Aletris farinosa Aletris farinosa **   Aletris farinosa **   Aletris farinosa **   Aletris farinosa **   Aletris farinosa **   Aletris farinosa **   Aletris farinosa **   Aletris farinosa **   -all-   0.505 % 2       -none- 29 Lycopodioides apodum Lycopodioides apodum **   Lycopodioides apodum **   Lycopodioides apodum **   Lycopodioides apodum **   Lycopodioides apodum **   Lycopodioides apodum **   Lycopodioides apodum **   Lycopodioides apodum **   -all-   0.505 % 2       -none- 30 Gentiana saponaria Gentiana saponaria **   Gentiana saponaria **   Gentiana saponaria **   Gentiana saponaria **   Gentiana saponaria **   Gentiana saponaria **   Gentiana saponaria **   Gentiana saponaria **   -all-   0.505 % 2       -none- 31 Aconitum uncinatum Aconitum uncinatum **   Aconitum uncinatum **   Aconitum uncinatum **   Aconitum uncinatum **   Aconitum uncinatum **   Aconitum uncinatum **   Aconitum uncinatum **   Aconitum uncinatum **   -all-   0.505 % 2       -none- 32 Amelanchier arborea Amelanchier arborea **   Amelanchier arborea **   Amelanchier arborea **   Amelanchier arborea **   Amelanchier arborea **   Amelanchier arborea **   Amelanchier arborea **   Amelanchier arborea **   -all-   0.505 % 2       DBH DBH err Ht. Ht. Err # 0.5 cm ± 0.5 cm     1 stem(s) 33 forb sp. forb sp. **   forb sp. **   forb sp. **   forb sp. **   forb sp. **   forb sp. **   forb sp. **   forb sp. **   -all-   0.505 % 2       -none- 34 Kalmia latifolia Kalmia latifolia **   Kalmia latifolia **   Kalmia latifolia **   Kalmia latifolia **   Kalmia latifolia **   Kalmia latifolia **   Kalmia latifolia **   Kalmia latifolia **   -all-   0.505 % 2       -none- 35 Andropogon glomeratus Andropogon glomeratus **   Andropogon glomeratus **   Andropogon glomeratus **   Andropogon glomeratus **   Andropogon glomeratus **   Andropogon glomeratus **   Andropogon glomeratus **   Andropogon glomeratus **   -all-   0.505 % 2       -none- 36 Oenothera fruticosa complex Oenothera fruticosa complex **   Oenothera fruticosa complex **   Oenothera fruticosa complex **   Oenothera fruticosa complex **   Oenothera fruticosa complex **   Oenothera fruticosa complex **   Oenothera fruticosa complex **   Oenothera fruticosa complex **   -all-   0.505 % 2       -none- 37 Carex sp. Carex sp. **   Carex sp. **   Carex sp. **   Carex sp. **   Carex sp. **   Carex sp. **   Carex sp. **   Carex sp. **   -all-   0.05 % 1       -none- 38 Xyris torta Xyris torta **   Xyris torta **   Xyris torta **   Xyris torta **   Xyris torta **   Xyris torta **   Xyris torta **   Xyris torta **   -all-   0.05 % 1       -none- 39 Smilax glauca Smilax glauca **   Smilax glauca **   Smilax glauca **   Smilax glauca **   Smilax glauca **   Smilax glauca **   Smilax glauca **   Smilax glauca **   -all-   0.05 % 1       -none- 40 Drosera rotundifolia var. rotundifolia Drosera rotundifolia var. rotundifolia **   Drosera rotundifolia var. rotundifolia **   Drosera rotundifolia var. rotundifolia **   Drosera rotundifolia var. rotundifolia **   Drosera rotundifolia var. rotundifolia **   Drosera rotundifolia var. rotundifolia **   Drosera rotundifolia var. rotundifolia **   Drosera rotundifolia var. rotundifolia **   -all-   0.05 % 1       -none- 41 Thalictrum pubescens Thalictrum pubescens **   Thalictrum pubescens **   Thalictrum pubescens **   Thalictrum pubescens **   Thalictrum pubescens **   Thalictrum pubescens **   Thalictrum pubescens **   Thalictrum pubescens **   -all-   0.05 % 1       -none- 42 Smilax rotundifolia Smilax rotundifolia **   Smilax rotundifolia **   Smilax rotundifolia **   Smilax rotundifolia **   Smilax rotundifolia **   Smilax rotundifolia **   Smilax rotundifolia **   Smilax rotundifolia **   -all-   0.05 % 1       -none- 43 Rhynchospora capitellata Rhynchospora capitellata **   Rhynchospora capitellata **   Rhynchospora capitellata **   Rhynchospora capitellata **   Rhynchospora capitellata **   Rhynchospora capitellata **   Rhynchospora capitellata **   Rhynchospora capitellata **   -all-   0.05 % 1       -none- 44 Rhododendron periclymenoides Rhododendron periclymenoides **   Rhododendron periclymenoides **   Rhododendron periclymenoides **   Rhododendron periclymenoides **   Rhododendron periclymenoides **   Rhododendron periclymenoides **   Rhododendron periclymenoides **   Rhododendron periclymenoides **   -all-   0.05 % 1       -none- 45 Symphyotrichum puniceum var. puniceum Symphyotrichum puniceum var. puniceum **   Symphyotrichum puniceum var. puniceum **   Symphyotrichum puniceum var. puniceum **   Symphyotrichum puniceum var. puniceum **   Symphyotrichum puniceum var. puniceum **   Symphyotrichum puniceum var. puniceum **   Symphyotrichum puniceum var. puniceum **   Symphyotrichum puniceum var. puniceum **   -all-   0.05 % 1       -none- 46 Kalmia carolina Kalmia carolina **   Kalmia carolina **   Kalmia carolina **   Kalmia carolina **   Kalmia carolina **   Kalmia carolina **   Kalmia carolina **   Kalmia carolina **   -all-   0.05 % 1       -none-
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Stratum Definitions:
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