Broecker WS and Denton GH (1990) What drives glacial cycles? Scientific American 262: 48-56.
Bush MB, Miller MS, DeOliveira PE, and Colinvaux PA (2000) Two histories of environmental change and human disturbance in eastern lowland Amazonia. The Holocene 10: 543-553.
Bush MB, Silman M, de Toledo M, Listopad C, Gosling W, Williams C, de Oliveira P, and Krisel C (2007) Holocene fire and human occupation in Amazonia: A spatial perspective. Philosophical Transactions of the Royal Society of London 362: 209-218.
Diamond J (2005) Collapse: How Societies Choose to Fail or Succeed. London: Penguin Books.
Dillehay TD (1997) Monte Verde: A Late Pleistocene Settlement in Chile. Volume 2: The Archaeological Context and Interpretation. Washington, DC: Smithsonian Institution Press.
Gruhn R (1994) The Pacific Coast route of initial entry: An overview. In: Bonnichsen R and Steele DG (eds.) Method and Theory for Investigating the Peopling of the Americas, pp. 249-256. Corvallis, Oregon: Oregon State University.
Heckenberger MJ, Kuikuro A, Kuikuro UT, et al. (2003) Amazonia 1492: Pristine forest or cultural parkland? Science 301: 17101714.
Jones (1994) Pollen evidence for early settlement and agriculture in Northern Belize. Palynology 18: 205-211.
Lehman J, Kern C, Glaser B, and Woods WI (2003) Amazonian Dark Earths: Origin, Properties, Management. Netherlands: Kluwer Acadecmic Publishers.
Leyden B (2002) Pollen evidence for climatic variability and cultural disturbance in the Maya lowlands. Ancient Mesoamerica 13: 85-101.
Mann A (2006) 1491: New Revelations of the Americas before Columbus. New York: Alfred A. Knopf.
O’Connell JF and Allen J (1998) When did humans first arrive in greater Australia and why is it important to know? Evolutionary Anthropology 6: 132-146.
Pennington RT, Latvin M, Prado DE, Pendry CA, Pell SL, and Butterworth CA (2004) Historical climate change and speciation: Neotropical seasonally dry forest plants show patterns of both Tertiary and Quaternary diversification. Philosophical Transactions of the Royal Society of London Series B 359: 515-538.
Piperno DR, Bush MB, and Colinvaux PA (1991) Palaeoecological perspectives on human adaptation in central Panama. II. The holocene. Geoarchaeology 6: 227-250.
Piperno DR (2001) Phytoliths. In: Smol JP, Birks HJB, and Last WM (eds.) Tracking Environmental Change Using Lake Sediments. Volume 3: Terrestrial, Algal, and Siliceous Indicators, pp. 235-251. Dordrect, The Netherlands: Kluwer Academic Publishers.
Piperno DR (2006a) Phytoliths:A Comprehensive GuideforArchae-ologistsand Paleoecologists. Lanham, MD: AltaMira Press.
Piperno DR (2006b) Prehistoric human occupation and impacts on Neotropical forest landscapes. In: Flenley J and Bush MB (eds.) Tropical Rain Forest Responses to Climatic Change, pp. 193-218. West Sussex, United Kingdom: Praxis Publishing Ltd.
Piperno DR (2006c) Agricultural impact on vegetation and quaternary vegetational history in Central America. Annals of the Missouri Botanical Garden 93: 274-296.
Piperno DR and Pearsall DM (1998) The Origins ofAgriculture in the Lowland Neotropics. San Diego: Academic Press.
Pope KO, Pohl MEd, Jones JG, et al. (2001) Origin and environmental setting of ancient agriculture in the lowlands of Mesoamerica. Science 292: 1370-1373.
Quadfasel D (2005) The Atlantic heat conveyor slows. Nature 438: 565-566.
Sandweiss DH, Richardson JB, III, Reitz EJ, Rollins HB, and Maasch KA (1996) Geoarchaeological evidence from Peru for a 5000 Years B. P. onset of El Nino. Science 273: 1531-1533.
Sauer CO (1958) Man in the ecology of tropical America. Proceedings of the Ninth Pacific Science Congress, Bangkok 20: 104-110.
Williams M, Dunkerly D, De Deckker P, Kershaw P, and Chappell J (1998) Quaternary environments, 2nd edn. London: Arnold.