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A late Holocene paleoenvironmental reconstruction from Agua Caliente, southern Belize, linked to regional climate variability and cultural change at the Maya polity of Uxbenká

Published online by Cambridge University Press:  20 January 2017

Megan K. Walsh*
Affiliation:
Dept. of Geography, Central Washington University, Ellensburg, WA 98926, USA
Keith M. Prufer
Affiliation:
Dept. of Anthropology, New Mexico State University, Albuquerque, NM 87131, USA
Brendan J. Culleton
Affiliation:
Dept. of Anthropology, Pennsylvania State University, University Park, PA 16802, USA
Douglas J. Kennett
Affiliation:
Dept. of Anthropology, Pennsylvania State University, University Park, PA 16802, USA
*
* Corresponding author at: Department of Geography, Central Washington University, 400 E. University Way, Ellensburg, WA 98926, USA. Fax: + 1 509 963 1047.E-mail address: [email protected] (M.K. Walsh).

Abstract

We report high-resolution macroscopic charcoal, pollen and sedimentological data for Agua Caliente, a freshwater lagoon located in southern Belize, and infer a late Holocene record of human land-use/climate interactions for the nearby prehistoric Maya center of Uxbenká. Land-use activities spanning the initial clearance of forests for agriculture through the drought-linked Maya collapse and continuing into the historic recolonization of the region are all reflected in the record. Human land alteration in association with swidden agriculture is evident early in the record during the Middle Preclassic starting ca. 2600 cal yr BP. Fire slowly tapered off during the Late and Terminal Classic, consistent with the gradual political demise and depopulation of the Uxbenká polity sometime between ca. 1150 and 950 cal yr BP, during a period of multiple droughts evident in a nearby speleothem record. Fire activity was at its lowest during the Maya Postclassic ca. 950–430 cal yr BP, but rose consistent with increasing recolonization of the region between ca. 430 cal yr BP and present. These data suggest that this environmental record provides both a proxy for 2800 years of cultural change, including colonization, growth, decline, and reorganization of regional populations, and an independent confirmation of recent paleoclimate reconstructions from the same region.

Type
Articles
Copyright
University of Washington

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References

A.P.G. II An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG II. Botanical Journal of the Linnean Society 141, (2003). 399436.CrossRefGoogle Scholar
Anchukaitis, K.J., and Horn, S.P. A 2000-year reconstruction of forest disturbance from southern Pacific Costa Rica. Palaeogeography, Palaeoclimatology, Palaeoecology 221, (2005). 3554.Google Scholar
Anselmetti, F.S., Hodell, D.A., Ariztegui, D., Brenner, M., and Rosenmeier, M.F. Quantification of soil erosion rates related to ancient Maya deforestation. Geology 35, (2007). 915918.CrossRefGoogle Scholar
Bateson, J.H., and Hall, I.H.S. The geology of the Maya Mountains, Belize. Institute of Geological Sciences. Institute of Geological Sciences, Overseas Memoir 3, (1977). (43 pp.)Google Scholar
Bhattacharya, T., Beach, T., and Wahl, D. An analysis of modern pollen rain from the Maya lowlands of northern Belize. Review of Palaeobotany and Palynology 164, (2011). 109120.Google Scholar
Billings, R.F., and Schmidtke, P.J. Central America southern pine beetle/fire management assessment. Report for the U.S. Agency for International Development, Guatemala–Central America Program—USDA Foreign Agricultural Service/International Cooperation and Development. (2002). Google Scholar
Braswell, G., and Prufer, K.M. Political organization and interaction in Southern Belize. Research Reports in Belizean Archaeology 6, (2009). 4355.Google Scholar
Brenner, M., Rosenmeier, M., Hodell, D., and Curtis, J.H. Paleolimnology of the Maya lowlands. Ancient Mesoamerica 13, (2002). 141157.Google Scholar
Budowski, G. Fire in tropical lowland areas. Proceedings of the Annual Tall Timbers Fire Ecology Conference 5, (1966). 522.Google Scholar
Carcaillet, C., Bouvier, M., Fréchette, B., Larouche, A.C., and Richard, P.J.H. Comparison of pollen-slide and sieving methods in lacustrine charcoal analyses for local and regional fire history. The Holocene 11, (2001). 467476.CrossRefGoogle Scholar
Clark, J.S., Lynch, J., Stocks, B.J., and Goldammer, J.G. Relationships between charcoal particles in air and sediments in west-central Siberia. The Holocene 8, (1998). 1929.Google Scholar
Clement, R.M., and Horn, S.P. Pre-Columbian land-use history in Costa Rica: a 3000-year record of forest clearance, agriculture and fires from Laguna Zoncho. The Holocene 11, (2001). 419426.Google Scholar
Cornec, J.H. (1986). Provisional geologic map of Belize. Belmopan, Geology and Petroleum Office, Ministry of Natural Resources, 1:250,000.Google Scholar
Correa-Metrio, A., Bush, M.B., Cabrera, K.R., Sully, S., Brenner, M., Hodell, D.A., Escobar, J., and Guilderson, T. Rapid climate change and no-analog vegetation in lowland Central America during the last 86,000 years. Quaternary Science Reviews 38, (2012). 6375.Google Scholar
Culleton, B.J. Human Ecology, Agricultural Intensification and Landscape Transformation at the Ancient Maya Polity of Uxbenká, Southern Belize. (Ph.D. thesis) (2012). University of Oregon, Eugene.Google Scholar
Culleton, B.J., Prufer, K.M., and Kennett, D.J. A Bayesian AMS 14C chronology of the Classic Maya Center of Uxbenká, Belize. Journal of Archaeological Science 39, (2012). 15721586.Google Scholar
Dean, W.E. Determination of carbonate and organic matter in calcareous sediments and sedimentary rocks by loss on ignition. Journal of Sedimentary Petrology 44, (1974). 242248.Google Scholar
Dearing, J.A., and Flower, R.J. The magnetic susceptibility of sedimenting material trapped in Lough Neagh, Northern Ireland. Limnology and Oceanography 27, (1982). 969975.Google Scholar
Dearing, J.A., Battarbee, A.W., Dikau, R., Larocque, I., and Oldfield, F. Human–environment interactions: learning from the past. Regional Environmental Change 6, (2006). 116.Google Scholar
Deevey, E.S., Rice, D.S., Rice, P.M., Brenner, M., and Flannery, M.S. Mayan urbanism: impact on a tropical karst environment. Science 206, (1979). 298306.Google Scholar
Dull, R.A. An 8000-year record of vegetation, climate, and human disturbance from the Sierra de Apaneca, El Salvador. Quaternary Research 61, (2004). 159167.Google Scholar
Dull, R.A. Evidence for forest clearance, agriculture, and human-induced erosion in precolumbian El Salvador. Annals of the Association of American Geographers 97, (2007). 127141.Google Scholar
Dunning, N.P., Rue, D., Beach, T., Covich, A., and Traverse, A. Human–environmental interactions in a tropical watershed: the paleoecology of Laguna Tamarindito, El Petén, Guatemala. Journal of Field Archaeology 25, (1998). 139151.Google Scholar
Faegri, K., and Iverson, J. Textbook of Pollen Analysis. (1989). Wiley, New York.Google Scholar
Gardner, J.J., and Whitlock, C. Charcoal accumulation following a recent fire in the Cascade Range, northwestern USA, and its relevance for fire-history studies. The Holocene 11, (2001). 541549.Google Scholar
Giannini, A., Kushnir, Y., and Cane, M.A. Interannual variability of Caribbean rainfall, ENSO and the Atlantic Ocean. Journal of Climate 13, (2000). 297311.2.0.CO;2>CrossRefGoogle Scholar
Gill, R.B., Mayewski, P.A., Nyberg, J., Haug, G.H., and Peterson, L.C. Drought and the Maya collapse. Ancient Mesoamerica 18, (2007). 283302.CrossRefGoogle Scholar
Goman, M., and Byrne, R. A 5000-year record of agriculture and tropical forest clearance in the Tuxtlas, Veracruz, Mexico. The Holocene 8, (1998). 8389.Google Scholar
Graham, E., Pendergast, D.M., and Jones, G.D. On the fringes of conquest: Maya–Spanish contact in colonial Belize. Science 246, (1989). 12541259.Google Scholar
Hansen, B. Pollen stratigraphy of Laguna de Cocos. Pohl, M. Ancient Maya Wetland Agriculture. (1990). Westview Press, Boulder. 155186.Google Scholar
Harvey, C., Alpizar, F., Chacón, M., and Madrigal, R. Assessing linkages between agriculture and biodiversity in Central America: historical overview and future perspectives. Report for the Nature Conservancy, Mesoamerican & Caribbean Region, Conservation Science Program, San José, Costa Rica. (2005). Google Scholar
Haug, G.H., Hughen, K.A., Sigman, D.M., Peterson, L.C., and Röhl, U. Southward migration of the Intertropical Convergence Zone through the Holocene. Science 293, (2001). 13041308.Google Scholar
Haug, G.H., Gunther, D., Peterson, L.C., Sigman, D.M., Hughen, K.A., and Aeschlimann, B. Climate and the collapse of the Maya civilization. Science 299, (2003). 17311735.Google Scholar
Heiri, O., Lotter, A.F., and Lemcke, G. Loss on ignition as a method for estimating organic and carbonate content in sediments: reproducibility and comparability of results. Journal of Paleolimnology 25, (2001). 101110.Google Scholar
Higuera, P.E., Whitlock, C., and Gage, J.A. Linking tree-ring and sediment-charcoal records to reconstruct fire occurrence and area burned in subalpine forests of Yellowstone National Park, USA. The Holocene 21, (2010). 327341.Google Scholar
Hillesheim, M.B., Hodell, D.A., and Leyden, B.W. Climate change in lowland Central America during the late deglacial and early Holocene. Journal of Quaternary Science 20, (2005). 363376.Google Scholar
Hodell, D.A., Curtis, J.H., and Brenner, M. Possible role of climate in the collapse of Classic Maya civilization. Nature 375, (1995). 391394.CrossRefGoogle Scholar
Holst, I., Moreno, E., and Piperno, D.R. Identification of teosinte, maize, and Tripsacum in Mesoamerica by using pollen, starch grains, and phytoliths. Proceedings of the National Academy of Sciences 104, (2007). 1760817613.Google Scholar
Horn, S.P., Sanford, R.L. Jr. Holocene fires in Costa Rica. Biotropica 24, (1992). 354361.Google Scholar
Islebe, G.A., Hooghiemstra, H., Brenner, M., Curtis, J.H., and Hodell, D.A. A Holocene vegetation history from lowland Guatemala. The Holocene 6, (1996). 265271.Google Scholar
Jacob, J.S. Ancient Maya wetland agricultural fields in Cobweb Swamp, Belize: construction, chronology, and function. Journal of Field Archaeology 22, (1995). 175190.Google Scholar
Johnston, K.J., Breckenridge, A.J., and Hansen, B.C. Paleoecological evidence of an early Postclassic occupation in the southwestern Maya lowlands: Laguna Las Pozas, Guatemala. Latin American Antiquity 12, (2001). 149166.Google Scholar
Jones, G.D. Maya Resistance to Spanish Rule: Time and History on a Colonial Frontier. (1989). University of New Mexico Press, Albuquerque.Google Scholar
Jones, J.G. Pollen Evidence of Prehistoric Forest Modification and Maya Cultivation in Belize. Ph.D. thesis (1991). Texas A&M University, San Antonio.Google Scholar
Jones, J. Pollen evidence from early settlement and agriculture in northern Belize. Palynology 18, (1994). 205211.Google Scholar
Kalosky, E.K., Ebert, C.E., Meredith, C., Nazaroff, A.J., and Mustain, C. Results of the 2011 Hinterland Household Excavations. Prufer, K.M., and Thompson, A.T. Uxbenká Archaeological Project: Report of the 2011 Field Season. Submitted to the Belize Institute of Archaeology, Belize Institute of Culture and History, the National Science Foundation, and the Alphawood Foundation (2012). Google Scholar
Keller, G., Stinnesbeck, W., Adatte, T., Holland, B., Stüben, D., Harting, M., de Leon, C., and de la Cruz, J. Spherule deposits in Cretaceous–Tertiary boundary sediments in Belize and Guatemala. Journal of the Geological Society, London 160, (2003). 783795.Google Scholar
Kennedy, L.M., Horn, S.P., and Orvis, K.H. A 4000-year record of fire and forest history from Valle de Bao, Cordillera Central, Dominican Republic. Palaeogeography, Palaeoclimatology, Palaeoecology 231, (2006). 279290.Google Scholar
Kennett, D.J., and Beach, T. Archaeological and environmental lessons for the Anthropocene from the Classic Maya collapse. Anthropocene (2014). http://dx.doi.org/10.1016/j.ancene.2013.12.002 Google Scholar
Kennett, D.J., Piperno, D.R., Jones, J.G., Neff, H., Voorhies, B., Walsh, M., and Culleton, B. Pre-pottery farmers on the Pacific coast of southern Mexico. Journal of Archaeological Science 37, (2010). 34013411.Google Scholar
Kennett, D.J. et al. Development and disintegration of Maya political systems in response to climate change. Science 338, (2012). 788791.Google Scholar
Leyden, B.W. Pollen evidence for climatic variability and cultural disturbance in the Maya lowlands. Ancient Mesoamerica 13, (2002). 85101.Google Scholar
Leyden, B.W., Brenner, M., Hodell, D.A., and Curtis, J.H. Orbital and internal forcing of climate on the Yucatan Peninsula for the past ca. 36 ka. Palaeogeography, Palaeoclimatology, Palaeoecology 109, (1994). 193210.Google Scholar
Leyden, B.W., Brenner, M., and Dahlin, B.H. Cultural and climatic History of Cobá, a lowland Maya city in Quintana Roo, Mexico. Quaternary Research 49, (1998). 111122.Google Scholar
McFadgen, B.G. Dating New Zealand archaeology by radiocarbon. New Zealand Journal of Science 25, (1982). 379392.Google Scholar
McNeil, C.L., Burney, D.A., and Burney, L.P. Evidence disputing deforestation as the cause for the collapse of the ancient Maya polity of Copan, Honduras. Proceedings of the National Academy of Sciences 107, (2010). 10171022.Google Scholar
Meerman, J.C., and Sabido, W. Central American Ecosystems Map: Belize. Volume 1. Programme for Belize, Belize City. (2001). Google Scholar
Meerman, J.C., Howe, A., Choco, S., Ack, A., Kok, S., and Maku, A. Rapid ecological assessment: Aguacaliente wildlife sanctuary. Report for the Aguacaliente Management Team, December. (2006). Google Scholar
Monacci, N.M., Meier-Grünhagen, U., Finney, B.P., Behling, H., and Wooller, M.J. Mangrove ecosystem changes during the Holocene at Spanish Lookout Cay, Belize. Palaeogeography, Palaeoclimatology, Palaeoecology 280, (2009). 3746.Google Scholar
Monacci, N.M., Meier-Grünhagen, U., Finney, B.P., Behling, H., and Wooller, J.H. Paleoecology of mangroves along the Sibun River, Belize. Quaternary Research 76, (2011). 220228.CrossRefGoogle Scholar
Montagnini, F., and Mendelsohn, R. Managing forest fallows: improving the economics of swidden agriculture. Ambio 26, (1997). 118123.Google Scholar
Mueller, A.D., Islebe, G.A., Hillesheim, M.B., Grzesik, D.A., Anselmetti, F.S., Ariztegui, D., Brenner, M., Curtis, J., Hodell, D.A., and Venz, K.A. Climate drying and associated forest decline in the lowlands of northern Guatemala during the late Holocene. Quaternary Research 71, (2009). 133141.Google Scholar
Mueller, A.D., Islebe, G.A., Anselmetti, F.S., Ariztegui, D., Brenner, M., Hodell, D.A., Hajdas, I., Hamann, Y., Haug, G.H., and Kennett, D.J. Recovery of the forest ecosystem in the tropical lowlands of northern Guatemala after disintegration of Classic Maya polities. Geology 38, (2010). 523526.Google Scholar
Neff, H., Pearsall, D.M., Jones, J.G., Arroyo de Pieter, B., and Freidel, D.E. Climate change and population history in the Pacific lowlands of southern Mesoamerica. Quaternary Research 65, (2006). 390400.Google Scholar
Nevle, R.J., and Bird, D.K. Effects of syn-pandemic fire reduction and reforestation in the tropical Americas on atmospheric CO2 during European conquest. Palaeogeography, Palaeoclimatology, Palaeoecology 264, (2008). 2538.Google Scholar
Nyberg, J., Kuipers, A., Malmgren, B.A., and Kunzendorf, H. Late Holocene changes in precipitation and hydrography recorded in marine sediments from the northeastern Caribbean Sea. Quaternary Research 56, (2001). 87102.Google Scholar
Oswald, W.W., Anderson, P.M., Brown, T.A., Brubaker, L.B., Hu, F.S., Lozhkin, A.V., Tinner, W., and Kaltenrieder, P. Effects of sample mass and macrofossil type on radiocarbon dating of arctic and boreal lake sediments. The Holocene 15, (2005). 758767.Google Scholar
Park, J., Byrne, R., Bohnel, H., Garza, R.M., and Conserva, M. Holocene climate change and human impact, central Mexico: a record based on maar lake pollen and sediment chemistry. Quaternary Science Reviews 29, (2010). 618632.Google Scholar
Piperno, D. Phytolith and charcoal evidence for prehistoric slash-and-burn agriculture in the Darien rain forest of Panama. The Holocene 4, (1994). 321325.Google Scholar
Piperno, D.R., and Smith, B.D. The origins of food production in Mesoamerica. Nichols, D.L., and Pool, C.A. The Oxford Handbook of Mesoamerican Archaeology. (2012). Oxford University Press, Oxford. 151164.Google Scholar
Pisaric, M.F.J. Long-distance transport of terrestrial plant material by convection resulting from forest fires. Journal of Paleolimnology 28, (2002). 349354.Google Scholar
Pohl, M., Pope, K., Jones, J., Jacob, J.S., Piperno, D.R., deFrance, S.D., Lentz, D.L., Gifford, J.A., Danforth, M.E., and Josserand, K. Early agriculture in the Maya lowlands. Latin American Antiquity 74, (1996). 355372.Google Scholar
Pope, K.O., Pohl, M.E., Jones, J.G., Lentz, D.L., von Nagy, C., Vega, F.J., and Quitmyer, I.R. Origin and environmental setting of ancient agriculture in the lowlands of Mesoamerica. Science 292, (2001). 13701373.CrossRefGoogle ScholarPubMed
Poveda, G., Waylen, P.R., and Pulwarty, R.S. Annual and inter-annual variability of the present climate in northern South America and southern Mesoamerica. Palaeogeography, Palaeoclimatology, Palaeoecology 234, (2006). 327.Google Scholar
Power, M.J. et al. Climatic control of the biomass-burning decline in the Americas after AD 1500. The Holocene 23, (2013). 313.Google Scholar
Prufer, K.M. Communities, Caves and Ritual Specialists: A Study of Sacred Space in the Maya Mountains of Southern Belize. (2002). Southern Illinois University, Carbondale. (Ph.D thesis) Google Scholar
Prufer, K.M., Moyes, H., Culleton, B.J., Kindon, A., and Kennett, D.J. Formation of a complex polity on the eastern periphery of the Maya lowlands. Latin American Antiquity 22, (2011). 199223.Google Scholar
Raynor, G.S., Ogden, E.C., and Hayes, K.V. Dispersion and deposition of corn pollen from experimental sources. Agronomy Journal 64, (1972). 420427.Google Scholar
Reimer, P.J., Baillie, M.G.L., and Bard, E. IntCal09 and Marine09 radiocarbon age calibration curves, 0–50,000 years cal BP. Radiocarbon 51, (2009). 11111150.Google Scholar
Rosenmeier, M.F., Hodell, D.A., Brenner, M., and Curtis, J.H. A 4000-year lacustrine record of environmental change in the southern Maya lowlands, Petén, Guatemala. Quaternary Research 57, (2002). 183190.Google Scholar
Roubik, D.W., and Moreno, P.J.E. Pollen and Spores of Barro Colorado Island. (1991). Missouri Botanical Garden, St. Louis.Google Scholar
Rue, D.J. Early agriculture and early Postclassic Maya occupation in western Honduras. Nature 326, (1987). 285286.CrossRefGoogle Scholar
Rue, D., Webster, D., and Traverse, A. Late Holocene fire and agriculture in the Copan Valley, Honduras. Ancient Mesoamerica 13, (2002). 267272.Google Scholar
Rushton, E.A.C., Metcalfe, S., and Whitney, B.S. A late-Holocene vegetation history from the Maya lowlands, Lamanai, Northern Belize. The Holocene 23, (2013). 485493.Google Scholar
Santos, L. Late Holocene forest history and deforestation dynamics in the Queixa Sierra, Galicia, northwestern Iberian Peninsula. Mountain Research and Development 24, (2004). 251257.Google Scholar
Thompson, J.E.S. The Maya of Belize: Historical Chapters Since Columbus. (1972). Benex Press, Belize.Google Scholar
Thompson, R., and Oldfield, F. Environmental Magnetism. (1986). Allen and Unwin, London.Google Scholar
Tsukada, M., Deevey, E.S. Jr. Pollen analysis from four lakes in the southern Maya area of Guatemala and El Salvador. Cushing, E.J., and Wright, H.E. Quaternary Paleoecology: Proceedings of the VII Congress of the International Association for Quaternary Research. (1967). Yale University Press, New Haven. 303331.Google Scholar
Turner, B.L., and Sabloff, J.A. Classic Period collapse of the Central Maya lowlands: insights about human–environment relationships for sustainability. Proceedings of the National Academy of Sciences (2012). http://dx.doi.org/10.1073/pnas.1210106109 Google Scholar
Vaughan, H.H., Deevey, E.S., and Garrett-Jones, S.E. Pollen stratigraphy of two cores from the Peten lake district, with an appendix on two deep-water cores. Pohl, M. Prehistoric Lowland Maya Environment and Subsistence Economy. (1985). Harvard University Press, Cambridge. 7389.Google Scholar
Wahl, D., Byrne, R., Schreiner, T., and Hansen, R. Holocene vegetation change in the northern Peten and its implications for Maya prehistory. Quaternary Research 65, (2006). 380389.Google Scholar
Wahl, D., Byrne, R., Schreiner, T., and Hansen, R. Palaeolimnological evidence of late-Holocene settlement and abandonment in the Mirador Basin, Petén, Guatemala. The Holocene 17, (2007). 813820.CrossRefGoogle Scholar
Wahl, D., Estrada-Belli, F., and Anderson, L. A 3400 year paleolimnological record of prehispanic human–environment interactions in the Homul region of the southern Maya lowlands. Palaeogeography, Palaeoclimatology, Palaeoecology 379–380, (2013). 1731.Google Scholar
Walsh, M.K., Whitlock, C., and Bartlein, P.J. A 14,300-year-long record of fire–vegetation–climate linkages at Battle Ground Lake, southwestern Washington. Quaternary Research 70, (2008). 251264.Google Scholar
Walsh, M.K., Whitlock, C., and Bartlein, P.J. An 11,000-year-long record of fire and vegetation history at Beaver Lake, Oregon, central Willamette Valley. Quaternary Science Reviews 29, (2010). 10931106.Google Scholar
Webster, J.W., Brook, G.A., Railsback, L.B., Cheng, H., Edwards, R.L., Alexander, C., and Reeder, P.P. Stalagmite evidence from Belize indicating significant droughts at the time of Preclassic Abandonment, the Maya Hiatus, and the Classic Maya collapse. Palaeogeography, Palaeoclimatology, Palaeoecology 250, (2007). 117.Google Scholar
Whitehead, D.R., and Langham, E.J. Measurement as a means of identifying fossil maize pollen. Bulletin of the Torrey Botanical Club 92, (1965). 720.Google Scholar
Whitlock, C., and Larsen, C.P.S. Charcoal as a fire proxy. Smol, J.P., Birks, H.J.B., Last, W.M. Tracking Environmental Change Using Lake Sediments: Biological Techniques and Indicators Volume 3 (2001). Kluwer Academic Publishers, Dordrecht. 7597.Google Scholar
Wilk, R. Dry season agriculture among the Kekchi Maya and its implications for prehistory. Pohl, M. Prehistoric Lowland Maya Environment and Subsistence Economy. (1985). Harvard University Press, Cambridge. 4757.Google Scholar
Wilk, R.R. Household Ecology: Economic Change and Domestic Life among the Kekchi Maya in Belize. (1991). University of Arizona Press, Tucson.Google Scholar
Willard, D., Bernhardt, C., Weimer, L., Cooper, S.R., Garnez, D., and Jessen, J. Atlas of pollen and spores of the Florida Everglades. Palynology 28, (2004). 175227.Google Scholar
Wooller, M.J., Morgan, R., Fowell, S., Behling, H., and Fogel, M. A multiproxy peat record of Holocene mangrove palaeoecology from Twin Cays, Belize. The Holocene 17, (2007). 11291139.Google Scholar
Wright, H.E. Jr., Mann, D.H., and Glaser, P.H. Piston cores from peat and lake sediments. Ecology 65, (1983). 657659.Google Scholar