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A3 - Siloam Bog
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» Citation URL: http://vegbank.org/cite/urn:lsid:vegbank.org/vegbranch:observation:475-{649481CD-ECFE-42EF-B5C4-4336A3612C10}
» Citing info |
| Plot ID Fields: | |
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Author Plot Code  |
A3 - Siloam Bog
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| Author Observation Code |
A3 - Siloam Bog
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| Original Data Location |
NJ Natural Heritage Program, NJDEP Division of Parks and Forestry, Office of Natural Lands Management, 22 S. Clinton Ave, Plaza Bldg 4, Fl. 4, PO Box 404 Trenton, NJ, 08625-0404
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| Location Fields: |
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| Confidentiality Status |
1 km radius (nearest 0.01 degree)
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| Latitude |
40.19
º
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| Longitude |
-74.34
º
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| Author Location |
Siloam Bog (aka, Turkey Swamp)
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| Location Narrative |
Site is 0.15 miles south of Siloam. From Siloam, travel 0.15 miles south to pond on east side of road. Ask permission to park in drive just north of pond.
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| State or Province |
New Jersey
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| Country |
United States
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| Named Places |
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| Layout Fields: | |
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| Shape |
Plotless
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| Permanence |
not permanent
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| Layout Narrative |
plotless - latitude and longitude coordinates approximate the survey area
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| Environment Fields: | |
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| Elevation |
45.7
m
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| Elevation Range |
0.61
m
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| Landscape Narrative |
Soil Description: fine sand
Landscape Description: This is part of a 2-acre pondshore community in 3.9-acre floristically diverse coastal plain intermittent pond in good condition, formerly a cranberry bog, surrounded by good quality deciduous forested wetlands that extends east. Rhexia virginica - Panicum verrucosum Herbaceous Vegetation dominates the central to upper zones of the pond (A2, A3, A4). The adjacent upper pondshore (A5) along the northern edge of the pond is dominated by Panicum rigidulum var. pubescens, with Panicum verrucosum, Rhexia mariana, Juncus canadensis and scattered Cephalanthus occidentalis. A band of Cephalanthus occidentalis grows along the northern edge of the pond and a few shrubs are scattered in the center of the pond. A dense shrub and forested wetland zone (A1) surrounds the pond dominated by Acer rubrum, Nyssa sylvatica and Vaccinium corymbosum, with Quercus alba, Q. palustris, Liquidambar styraciflua, Pinus rigida, Smilax rotundifolia, Clethra alnifolia and Gaultheria procumbens. Route 527 is immediately west of the site, but forested wetlands extend east into Turkey Swamp. Homes, golf courses and some agricultural fields and cranberry bogs occupy the surrounding area, but forested wetlands associated with the South Branch and Turkey Swamp are the dominant feature of the surrounding buffer area.
Physiographic Province: Outer Coastal Plain
Watershed Code: 02040301030
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| Percent Litter |
5
%
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| Percent Other |
30
%
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| Name Other |
sand
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| Methods Fields: | |
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| Observation Start Date |
19-Aug-2002
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| Observation End Date |
19-Aug-2002
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| Project |
NJ Mark Wong
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| Cover Method |
Percentage (%)
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| Stratum Method |
National Park Service
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| Overall Taxon Cover Values are Automatically Calculated? |
no
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| Plot Quality Fields: | |
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| Plot Validation Level |
(1) occurrence plot: sufficient for determining type occurrence
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| Overall Plot Vegetation Fields: | |
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| Dominant Stratum |
Herb
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| Growthform1 Type |
Herbs
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| Misc Fields: | |
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| Observation Narrative |
Community Type: coastal plain pond
Community Description: Good quality herbaceous pondshore community occurring in the central to upper zones of a coastal plain intermittent pond. Community occurrence is made up of three somewhat distinct patches, a small Fimbristylis autumnalis-dominated patch near the center, a large Panicum verrucosum-dominated patch from the center to middle zones and a Juncus canadensis and Rhexia mariana-dominated patch on the upper pondshore in the southern portion of the pond that likely vary spatially and temporally. Fimbristylis autumnalis dominates the center of the pond (A4) with 30% cover, with an unidentified Panicum (20%), Panicum verrucosum (10%), Rhexia mariana (3%), Hypericum sp. (3%), Hypericum c.f. denticulatum (2%) and 30% bare ground (dry, cracked silt above fine sand). The middle zone (A3) of the pond is dominated by grasses where ditching is evident. Species include Panicum verrucosum (55%), with Rhexia mariana (4%), less than 1% Panicum rigidulum var. pubescens, Panicum sp., Hypericum c.f. mutilum, Hypericum sp., Schizachyrium scoparium, Fimbristylis autumnalis, Xyris c.f. torta, Euthamia tenuifolia, Paspalum c.f. dissectum, Rhynchospora sp., scattered Cephalanthus occidentalis, 30% bare soil (sand) and 5% duff. The upper pondshore (A2) is dominated by Juncus canadensis (50%) and Rhexia mariana (30%), with Panicum verrucosum (8%), Juncus c.f. effusus (2%), Sphagnum sp. (3%), less than 1% Acer rubrum seedlings, Euthamia tenuifolia, Panicum rigidulum var. pubescens, Dichanthelium scabriusculum, Smilax rotundifolia seedlings, Schizachyrium scoparium, and 20% leaf litter (no bare soil). Muck overlying sand in Fimbristylis-zone, with surficial sand elsewhere. Underlying substrate is sand and clay of the Lower Member. No standing water, dry cracked soil surface on survey date. Full sun exposure with virtually no slope in central zone and small (2-4ยบ) slope along upper pondshore.
Additional species present but not found in observation area: Paspalum diseectum, Cephalanthus sp. (scattered), Rhynchospora sp.
Note: Although the whole 3.9-acre pond was mapped for this occurrence, Rhexia virginica - Panicum verrucosum Herbaceous Vegetation occupies approximately 2 acres of the pond.
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