Abstract
Beach Pond is a freshwater pond and marsh, located approximately 50–100 m from the beach scarp in the mid-southern portion of St. Catherines Island, Liberty County, Georgia (31°37′N latitude, 81°09′W longitude). A 4.5-m sediment core was obtained from the pond in an effort to reconstruct the paleoecology of the site. The sediments (sand, clay, and peat) are Holocene age (<10,000 years). Gross sedimentological characteristics of the core suggest cyclic depositional trends. The modern vegetation of Beach Pond is dominated byPluchea and other composites,Typha, Cyperaceae, and Poaceae. The palynology of the core reveals dynamic changes in depositional environments and plant communities during sediment accumulation. Sediments from the lower portion of the core were derived from nearshore marine environments and probably represent accumulation in a shallow lagoon; these are characterized by the abundant pollen ofPinus and a large percentage of brokenPinus pollen grains. A piece of wood recovered from the uppermost lagoonal sediments yielded a radiocarbon date (AMS) of 1210±40 BP. These sediments are overlain by tidal-flat-derived sediments, which are overlain by a thin peat layer derived from an interdunal swale community dominated byMyrica. A return to brackish marsh conditions then occurred, as indicated by the presence ofLimonium, Cheno-Am type (e.g.,Salicornia), and abundant Poaccae pollen. The modern freshwater pond plant community became established as the salinity decreased; this is indicated by the abundance of freshwater plant taxa (i.e.,Azolla, Typha, Cyperaceae). Sea-level fluctuation, erosion, storm overwash, and anthropogenic factors (i.e., road building, water-well drilling) have all influenced the development of past and modern plant communities by altering the hydrology and salinity of the site.
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Literature Cited
Bloom, A. L. 1983. Sea level and coastal morphology of the United States through the Late Wisconsin Glacial Maximum. p. 215–229.In S. C. Porter (ed.) Late Quaternary Environments of the United States, Vol. 1. The Late Pleistocence. University of Minnesota Press, Minneapolis, MN, USA.
Booth, R. K. 1998. Palynology and, environments of deposition of sediments from two barrier islands: St. Catherines Island and Skidaway Island, Georgia, USA. M. S. Thesis. Georgia Southern University, Statesboro, GA, USA.
Booth, R. K. and F. J. Rich. 1998. Quaternary evolution of the Georgia coastal plain as indicated by palynology, stratigraphy, and age of selected coastal, inland, and marine deposits. p. 78–89.In F. J. Rich and G. A. Bishop (eds.) Geology and Natural History of the Okefenokee Swamp and Trial Ridge, Southeastern Georgia— Northern Florida. Georgia Geological Society Guidebooks, Vol. 18. The Georgia Geological Society. Inc., Atlanta, GA, USA.
Burney, D. A. and L. P. Burney. 1987. Recent paleoecology of Nags Head Woods on the North Carolina Outer Banks. Bulletin of the Torry Botanical Club 114:156–168.
Carmichael, D. P. 1980. A record of environmental change during recent millennia in the hackensack tidal marsh, New Jersey. Bulletin of the Torry Botanical Club 107:514–524.
Clark, J. S. 1986a. Late-Holocene vegetation and coastal processes at a Long Island tidal marsh. Journal of Ecology 74:561–578.
Clark, J. S. 1986b. Dynamism in the barrier-beach vegetation of Great South Beach. New York. Ecological Monographs 56:97–126.
Clark, J. S. and W. A. Patterson III. 1985. The development of a tidal marsh: upland and oceanic influences. Ecological Monographs 55:189–217.
Cohen, A. D. and A. L. Guber. 1968. Production of pollen-sized microforaminifera from normal foraminifera. Micropaleontology 14:361–362.
Duncan, W. H. and M. B. Duncan 1987. The Smithsonian Guide to Seaside Plants of the Gulf and Atlantic Coasts. Smithsonian Institution Press, Washington DC, USA.
Faegri, K. and J. Iversen. 1989. Textbook of Pollen Analysis. IV edition. John Wiley and Sons. New York, NY, USA.
Fairbridge, R. W. 1992. Holocene marine coastal evolution of the United States. p. 9–20.In Fletcher, C. H. and J. F. Wehmiller (eds.) Quaternary Coasts of the United States: Marine and Lacustrine Systems: SEPM Special Publication Number 48. Tulsa, OK, USA.
Georgia Department of Natural Resources. 1976. Wetlands and Geologic Resources. Department of Natural Resources, Office of Planning and Research, Atlanta, GA, USA.
Hayes, M. O. 1979. Barrier island morphology as a function of tidal and wave regime. p. 1–27.In S. P. Leatherman (ed.) Barrier Islands, from the Gulf of St. Lawrence to the Gulf of Mexico. Academic Press, New York, NY, USA.
Heusser, L. E., C. J. Heusser and D. Weiss. 1975. Man’s influence on the development of the estuarine marsh, Flax Pond. Long Island, New York. Bulletin of the Torry Botanical Club 102:61–66.
Howard, J. D. and R. W. Frey. 1980a. Holocene depositional environments of the Georgia coast and continental shelf. p. 66–134.In J.D. Howard, C.B. Depratter, and R.W. Frey (eds.) Excursions in Southeastern Geology: The Archaeology-Geology of the Georgia Coast. Georgia Geological Survey Guidebook, v. 20. Georgia Department of Natural Resources, Atlanta, GA, USA.
Howard, J. D. and R. W. Frey. 1980b. Physical and biogenic processes in Georgia estuaries III. Vertical sequences. p. 221–132.In S. B. McCann (ed.) Sedimentary Processes and Animal-Sediment Relationships in Tidal Environments. Short Course Notes, Vol. 1, Geological Association of Canada. Halifax, NS. Canada.
Hoyt, J. H. and J. R. Hails. 1974. Pleistocene stratigraphy of southcast Gcorgia. p. 191–203.In R. Q. Oakes and J. R. Dubar (eds.) Post-Miocene Stratigraphy: Central and Southern Atlantic Coastal Plain. Utah State University Press, Logan, UT, USA.
Hubbard, D. K., G. Oertel, and D. Nummedal. 1979. The role of waves and tidal currents in the development of tidal-inlet sedimentary structures and sand body geometry: examples from North Carolina, South Carolina, and Georgia. Journal of Sedimentary Petrology 49:1073–1092.
Jackson, S. T., R. P. Futyma, and D. A. Wilcox. 1988. A palcoccological test of a classical hydrosere in the Lake Michigan dunes. Ecology 69:928–936.
Niering, W. A., R. S. Warren, and C. G. Weymouth. 1977. Our dynamic tidal marshes: vegetation changes as revealed by peat analysis. Connecticut Arboretum Bulletin 22, New London, CT. USA.
Niering, W. A. and R. S. Warren. 1980. Vegetation patterns and processes in New England salt marshes. Bioscience 30:301–307.
Oertel, G. F. 1975. Ebb-tidal deltas of Georgia estuaries. p. 267–276.In L. E. Cronin (ed.) Estuarine Research: Geology and Engineering. Proceedings of the 2nd International Estuarine Research Conference. Academic Press, New York, NY, USA.
Perry, J. E. and R. B. Atkinson. 1997. Plant diversity along a salinity gradient of four marshes on the York and Pamunkey Rivers in Virginia. Castanea 62:112–118.
Rich, F. J. 1995. Palynological characteristics of near-shore shell-bearing Pliocene through Holocene sediments of Florida, Georgia. and South Carolina. Tulane Studies in Geology and Paleontology 28:97–112.
Rich, F. J. and L. Newsom. 1995. Preliminary palynological and macrobotanical report for the leisey Shell Pits, Hillsborough County, Florida. Bulletin of the Florida Museum of Natural History 37:117–126.
Rich, F. J. and F. L. Pirkle. 1993. Palynology and paleoecology of Reids Bluff. p. 74–81.In K. M. Farrell, C. W. Hoffman, and V. J. Henry. Jr. (eds.) Geomorphology and Facies Relationships of Quaternary Barrier Island Complexes Near St. Marys, Georgia Georgia Geological Society Guidebooks, Vol. 13. The Georgia Geological Society, Inc., Atlanta, GA, USA.
Rich, F. J. and F. L. Pirkle. 1994. Paleoecological interpretation of the Trail Ridge sequence, and related deposits in Georgia and Florida, based on pollen sedimentation and clastic sedimentology. p. 287–310.In A. Traverse (ed.) Sedimentation of Organic Particles. Cambridge University Press, Cambridge, England.
Schoonmaker, P. K. and D. R. Foster 1991. some implications of paleoecology for contemporary ecology. Botanical Review 57: 204–245.
Singer, D. K. 1996. Autogenic and allogenic influences on long-term vegetation dynamics of a wetland chronosequence in Northern Michigan. M.S. Thesis. Northern Arizona University. Flagstaff, AZ, USA.
Singer, D. K., S. T. Jackson, B. J. Madson, and D. A. Wilcox. 1996. Differentiating climatic and successional influences on the long term development of a marsh. Ecology 77:1765–1778.
Thomas, D. H., G. D. Jones, R. S. Durham, and C. S. Larsen. 1978. The anthropology of St. Catherines Island, I. Natural and cultural history. Anthropological Papers of the American Museum of Natural History 55.
Tolliver, K. S., D. W. Martin, and D. R. Young. 1997. Freshwater and saltwater flooding response for woody species common to barrier island swales. Wetlands 17:10–18.
Traverse, A. 1988. Paleopalynology. Unwin Hyman, Boston, MA, USA.
Watts, W. A. 1969. A pollen diagram from Mud Luke, Marion County, north-central Florida Geological Society of America Bulletin 80:631–690.
Watts, W. A. 1971. Postglacial and interglacial vegetation history of southern Georgia and central Florida. Ecology 53:676–690.
Watts, W. A. and B. C. S. Hansen. 1988. Environments of Florida in the Late Wisconsin and Holocene. p. 307–323.In B. Purdy (ed.) Wet Site Archeology. Telford Press, West Caldwell, NJ, USA.
Webb, T. III. 1973. A comparison of modern and presettlement pollen from southern Michigan (U.S.A.) Review of Paleobotany and Palynology 16:137–156.
Webb, T. III., P. J. Bartlein, S. P. Harrison and K. H. Anderson. 1993. Vegetation, lake levels, and climate in eastern North America for the past 18,000 years. p. 415–467.In H. E. Wright., Jr., J. E. Kutzbach, T. Webb III, W. F. Ruddiman, F. A. Street Porrott and P. J. Barlein (eds.) Global Climates Since the Last Glacial Maximam. University of Minnesota Press, Minneapolis, MN, USA.
Young, D. R., D. L. Erickson, and S. W. Semones. 1994. Salinity and the small-scale distribution of three barrier island shrubs. Canadian Journal of Botany 72:1365–1372.
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Booth, R.K., Rich, F.J., Bishop, G.A. et al. Evolution of a freshwater barrier-island marsh in coastal Georgia, USA. Wetlands 19, 570–577 (1999). https://doi.org/10.1007/BF03161694
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DOI: https://doi.org/10.1007/BF03161694