National Forests in Florida Final Report
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- Swamp Blackgum Depression Forest
Rufous Mayhaw PondElement Identifiers NVCS association: Crataegus rufula Forest Database Code: CEGL007783 Formation: Seasonally flooded cold-deciduous forest Alliance: CRATAEGUS (AESTIVALIS, OPACA, RUFULA) SEASONALLY FLOODED FOREST ALLIANCE (I.B.2.N.e.5) Element Concept Summary: Isolated seasonal depression ponds dominated by Crataegus rufula, which occur in southwestern Georgia, southeastern Alabama, and Panhandle Florida. Few other plants are present other than scattered Cephalanthus occidentalis. Environment: See Summary Vegetation: See Summary Dynamics: See Summary Similar Associations: No information Synonymy: No information Comments: Noted on the Conecuh National Forest in a series of upland ponds. Conservation Ranking & Rare Species GRank: G2G3 (99-03-29): This mayhaw pond association is restricted to isolated seasonal depression ponds found only in southwestern Georgia, southeastern Alabama, and Panhandle Florida. These ponds are dominated by Crataegus rufula, which is restricted in range. This vegetation occurs as scattered wetland inclusions in predominantly mesic to dry-mesic uplands, which are typically subjected to intensive forest management practices. Because occurrences are usually small in area (<0.5 ha), they are often overlooked as a distinct community. Except those found on U.S. Forest Service lands, most high-quality examples of this community have been drained or impacted through forest type conversion and/or alteration of the hydrological regimes. This can occur from road construction, seismic surveying, well-drilling, increased windthrow and microclimate modification caused by intensive silvicultural practices on adjacent uplands, herbicide use, and vegetation damage by feral hogs. High-ranked species: No information Element Distribution Range: States: AL FL GA Crosswalk to State Classifications: Not yet cross-referenced to state classifications TNC Ecoregions: 53:C USFS Ecoregions: 232Be:CC?, 232Bg:CCP, 232Bh:CC?, 232Bi:CCP, 232Bj:CCC, 232Cc:CP? Federal Lands: USFS (Apalachicola?, Conecuh) Element Sources References: Upland Depression Forested Ponds Swamp Blackgum Depression ForestElement Identifiers NVCS association: Nyssa biflora / Itea virginica - Cephalanthus occidentalis Depression Forest Database Code: CEGL007434 Formation: Seasonally flooded cold-deciduous forest Alliance: NYSSA (AQUATICA, BIFLORA, OGECHE) POND SEASONALLY FLOODED FOREST ALLIANCE (I.B.2.N.e.9) Element Concept Summary: This community occupies peaty or mucky, acidic, semipermanently wet depressions in the Atlantic and East Gulf coastal plains. This community is strongly dominated by Nyssa biflora. Other bottomland species, including Taxodium distichum and Taxodium ascendens, may also be present, but combined usually contribute less than 30% of the canopy. Shrubs are scarce to scattered on hummocks and become more common with peat accumulation. Shrub species include Itea virginica and Cephalanthus occidentalis, with Clethra alnifolia, Lyonia lucida, Cliftonia monophylla, and Cyrilla racemiflora being common in the East Gulf and Atlantic coastal plains. Floating logs and stumps provide habitat for the sparse herbaceous stratum. Species include Woodwardia virginica, Woodwardia areolata, Osmunda cinnamomea, Eriocaulon spp., Xyris spp., Rhynchospora spp., Schoenoplectus spp. (= Scirpus spp.), and Juncus spp. The moderately to strongly acidic sandy soils are overlain by organic muck and leaf litter. This community occurs in depressions on the Coastal Plain of Virginia, North Carolina, South Carolina, Georgia, Florida, Alabama, and Mississippi; and sparingly on the Piedmont of South Carolina, Georgia, and Alabama. Environment: This community occupies peaty or mucky, acidic, semipermanently wet depressions in the Atlantic and East Gulf coastal plains. The moderately to strongly acidic sandy soils are overlain by organic muck and leaf litter. Vegetation: This community is strongly dominated by Nyssa biflora. Other bottomland species, including Taxodium distichum and Taxodium ascendens, may occur but combined usually contribute less than 30% of the canopy. Shrubs are scarce to scattered on hummocks and become more common with peat accumulation. Shrub species include Itea virginica and Cephalanthus occidentalis, with Clethra alnifolia, Lyonia lucida, Cliftonia monophylla, and Cyrilla racemiflora being common in the East Gulf and Atlantic coastal plains. On Apalachicola National Forest at Morrison hammock (APAL.27) Magnolia virginiana, Gordonia lasianthus, Ilex coriacea, Ilex myrtifolia, Pinus taeda, and Ilex cassine were also present at low cover values. Floating logs and stumps provide habitat for the sparse herbaceous stratum. Species include Woodwardia virginica, Woodwardia areolata, Osmunda cinnamomea, Eriocaulon spp., Xyris spp., Rhynchospora spp., Schoenoplectus spp. (= Scirpus spp.), and Juncus spp. Dynamics: See Summary Similar Associations: Nyssa biflora / Ilex myrtifolia / Carex glaucescens - Eriocaulon compressum Forest (CEGL004720)--of dome swamps. Synonymy: IIA10b. Swamp Tupelo Pond Forest (Allard 1990) B. in part Comments: None Conservation Ranking & Rare Species GRank: G3G4 (97-08-15): High-ranked species: No information Element Distribution Range: This community occurs in depressions on the Coastal Plain of Virginia, North Carolina, South Carolina, Georgia, Florida, Alabama, and Mississippi, and sparingly on the Piedmont of South Carolina, Georgia, and Alabama. It may also occur in the eastern portions of Louisiana. States: AL FL GA LA MS NC SC VA? Crosswalk to State Classifications: LA: Gum Swamp, in part (LA 1996) VA?: No equivalent (VA 2001) TNC Ecoregions: 43:P, 52:P, 53:C, 56:C, 57:C USFS Ecoregions: 232D:CC, 232F:CC Federal Lands: DOD (Fort Benning); USFS (Apalachicola, Conecuh, Croatan, De Soto, Delta, Francis Marion, Holly Springs?, Kisatchie?, Oconee?, St. Francis, Tombigbee?, Tuskegee?) Element Sources References: Allard 1990, Clewell 1971, Clewell 1981, Smith 1995a, Smith 1996a Flatwoods – Wooded Ponds and Dome Swamps Directory: library library -> Strategic Plan South Sudan Country Office Context library -> The World Order of Bahá’u’lláh Selected Letters library -> Ieee/iee electronic Library (iel) library -> [0] B. Hardware [2] library -> [1] B. Hardware [1] library -> Florida public service commission library -> 1 1 before the florida public service commission 2 docket no. 070650-ei 3 In the Matter of: 4 petition to determine need for turkey point nuclear units 6 and 7 electrical 5 power plant, by florida power & light company library -> Archived Online Exhibit Download 3.16 Mb. Share with your friends:
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