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A3 - Egg Harbor Rd. Twinpi
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» Citation URL: http://vegbank.org/cite/urn:lsid:vegbank.org/vegbranch:observation:380-{56EFE41D-77AC-4B1E-AFA5-3F16A7A674DE}
» Citing info |
| Plot ID Fields: | |
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Author Plot Code  |
A3 - Egg Harbor Rd. Twinpi
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| Author Observation Code |
A3 - Egg Harbor Rd. Twinpi
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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: |
MAP:
Google
| Yahoo
| TopoZone
| MapQuest
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| Confidentiality Status |
1 km radius (nearest 0.01 degree)
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| Latitude |
39.9
º
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| Longitude |
-74.51
º
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| Author Location |
Egg Harbor Rd. Twinpi
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| Location Narrative |
Site is ~1.2 miles S of Mt. Misery. From Mt. Misery, take Mt. Misery Rd. south, ~0.3 miles, turn right (south) and continue 0.3 miles to the fork; take left fork (Egg Harbor Rd. on topo map, Woodmansie Rd. in NJ Atlas). Follow ~0.7 miles to 3rd major bend. Pond is on right, less than 500'.
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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 - coordinates approximate surveyed area
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| Environment Fields: | |
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| Elevation |
39.9
m
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| Elevation Range |
0.61
m
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| Slope Gradient |
1.5
º
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| Landscape Narrative |
Soil Description: thin surface layer of muck over sand of the Cohansey Formation
Landscape Description: 0.4 acre pondshore community in pristine condition within a 3.2 acre floristically diverse coastal plain intermittent pond surrounded by high quality pitch pine-oak-heath forest. Site is located in Lebanon State Forest, surrounded by pine-oak upland forest with a black huckleberry understory. The surrounding forest extends many miles in all directions, but cut by sand roads. The South Branch of Mt. Misery Brook runs NW approximately 2000' to the NE. McDonalds Branch is ~4000' to the SW.
Physiographic Province: Outer Coastal Plain
Watershed Code: 02040202030
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| Percent Bare Soil |
40
%
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| Methods Fields: | |
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| Observation Start Date |
25-Oct-2002
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| Observation End Date |
25-Oct-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
General Description: Coastal plain intermittent pond within pitch pine-oak-huckleberry upland forest that extends many miles in all directions. The surrounding landscape is relatively flat, underlain by the Cohansey Formation, medium- to coarse-grained quartz sand. The pond in located between the South Branch of Mt. Misery Brook (2000 feet to northwest) and McDonald’s Branch (4000 feet to southwest). Carex striata var. brevis Herbaceous Vegetation occurs in the middle to upper zones of the pond. The adjacent central zone is dominated by Xyris smalliana, with Eriocaulon aquaticum, Eleocharis olivacea, Panicum verrucosum, Juncus sp., Eleocharis robbinsii, Eleocharis microcarpa, Rhynchospora macrostachya, Dichanthelium saborulum var. thinium and Dulichium arundinaceum. The Carex zone is bordered on the west by a Chamaedaphne calyculata on elevated ground (about 6 inches higher than the central zone) with an understory of Sphagnum sp. and scattered Kalmia angustifolia. The upper shore of the pond is dominated by Vaccinium corymbosum, with Kalmia angustifolia, Chamaedaphne calyculata, and scattered Clethra alnifolia, Lyonia mariana, Sphagnum sp., Acer rubrum, Pinus rigida, Nyssa sylvatica and Ilex glabra. The surrounding pitch pine-oak forest is crossed by a few sand roads. What appears to be a sand mine lies about 800 feet southwest. Otherwise there is practically no current anthropogenic disturbance in the surrounding buffer area.
Community Description: High quality herbaceous pondshore community occurring as two areas within the central zone of a coastal plain intermittent pond. The northern area, roughly 100 x 150’ (A1), is dominated by Xyris smalliana (25%), with Eriocaulon aquaticum (10%), Eleocharis olivacea (5%), Panicum verrucosum (1%), Juncus sp. (1%), Eleocharis robbinsii (1%) and less than 1% Eleocharis microcarpa and Rhynchospora macrostachya. Distribution is patchy, with Eleocharis olivacea prominent in the center, and Xyris smalliana and Eriocaulon aquaticum prominent in the southern portion and extending into a surrounding Carex striata var. brevis zone. The northern edge of this area, a 20 x 40’ patch, is virtually a monoculture of Dulichium arundinaceum (35-40% cover). The second, smaller area, about 30 x 30’ (A3), is dominated by Eleocharis microcarpa (30%), with Eleocharis olivacea (7%), Dulichium arundiceum (5%), and less than 1% Eleocharis robbinsii and Dichanthelium saborulum var. thinium. Both patches receive full sun and have a very gentle slope (0-3%), with 40-60% exposed moist, firm muck or sand substrate. Soil is sand of the Cohansey Formation with a thin surface layer of muck.
Community Description (field): Small patch (8x8 m) in S end of Carex zone dominated by Eriocaulon aquaticum and Eleocharis microcarpa and Eleocharis olivacea. Dulichium is scattered throughout.
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