In-stream wetland deposits, megadroughts, and cultural change in the northern Atacama Desert, Chile

A key concern regarding current and future climate change is the possibility of sustained droughts that can have profound impacts on societies. As such, multiple paleoclimatic proxies are needed to identify megadroughts, the synoptic climatology responsible for these droughts, and their impacts on past and future societies. In the hyperarid Atacama Desert of northern Chile, many streams are characterized by perennial flow and support dense in-stream wetlands. These streams possess sequences of wetland deposits as fluvial terraces that record past changes in the water table. We mapped and radiocarbon dated a well-preserved sequence of in-stream wetland deposits along a 4.3-km reach of the Río San Salvador in the Calama basin to determine the relationship between regional climate change and the incision of in-stream wetlands. The Río San Salvador supported dense wetlands from 11.1 to 9.8, 6.4 to 3.5, 2.8 to 1.3, and 1.0 to 0.5 ka and incised at the end of each of these intervals. Comparison with other in-stream wetland sequences in the Atacama Desert, and with regional paleoclimatic archives, indicates that in-stream wetlands responded similarly to climatic changes by incising during periods of extended drought at ~9.8, 3.5, 1.3, and 0.5 ka.

Climate change · Drainage basin · Earth science · Fluvial · Geography · Geomorphology · Hydrology (agriculture) · Perennial stream · Physical geography · Radiocarbon dating · STREAMS · Structural basin · Wetland · Coastal wetland ecosystem dynamics · Ecology · Geology · Geology and Paleoclimatology Research · Oceanography · Paleontology · Tree-ring climate responses

• El manejo territorial de los camélidos en la circumpuna de Atacama desde el Arcaico al Formativo (10.000-2400 aP)

  Open Access•Patricio López-Mendoza, Celeste Samec et al.•Latin American Antiquity•2021

  Incluir item

• Precipitation variability, vegetation turnover, and anthropogenic disturbance over the last millennium in the Atacama highlands of northern Chile (19°S)

  Open Access•Alejandra I Domic, María Eugenia De Porras et al.•The Holocene•2023

  Incluir item

• Years of sociocultural plant use in the Atacama Desert of northern Chile

  Open Access•Paula C Ugalde, Virginia Mcrostie et al.•Vegetation History and…•2020

  Incluir item

• Late Pleistocene–Early Holocene human settlement and environmental dynamics in the southern Atacama Desert highlands (24.0°S–24.5°S, Northern Chile)

  Open Access•Patricio De Souza, Isabel Cartajena et al.•Geoarchaeology•2021

  Incluir item

• Soils in ancient irrigated agricultural terraces in the Atacama Desert, Chile

  Open Access•Jonathan A Sandor, Gary Huckleberry et al.•Geoarchaeology•2021

  Incluir item

• Metapopulation Processes in the Long-Term Colonization of the Andean Highlands in South America

  Open Access•Luis Alberto Borrero, C M Santoro•Journal of World Prehistory•2022

  Incluir item

• Safeguarding Indigenous Heritage in the Chilean Atacama Desert

  Rebecca Haboucha, Daniella Jofré•Heritage & Society•2021

  Incluir item

• Climate and oceanic condition changes influence subsistence economic adaptation through intensification on the Central Andean coasts

  Open Access•Kathleen M Wilson, Weston C Mccool et al.•Quaternary International•2024

  Incluir item

• Radiocarbon Dating and Freshwater Reservoir Effects of Aquatic Mollusks Within Fluvial Channel Deposits in the Midwestern United States

  Open Access•Jason A Rech, Christina N Tenison et al.•Radiocarbon•2023

  Incluir item

• Paleoparasitological and ancient DNA insights into rodent middens around anthropogenic environments

  Open Access•Agustín Bellusci, Silvina Quintana et al.•The Holocene•2026

  Incluir item

• Mid-Holocene Climate and Culture Change in the Atacama Desert, Northern Chile

  Open Access•Martín Grosjean, Lautaro Núñez et al.•Quaternary Research•1997

  Incluir item

• Ephemeral-Stream Processes

  Open Access•Peter C Patton, Stanley A Schumm•Quaternary Research•1981

  Incluir item

• Radiocarbon Reservoir Effect and the Timing of the Late-Glacial/Early Holocene Humid Phase in the Atacama Desert (Northern Chile)

  Open Access•Mebus A Geyh, Martín Grosjean et al.•Quaternary Research•1999

  Incluir item

• Paleowetlands and regional climate change in the central Atacama Desert, northern chile

  Open Access•Jay Quade, Jason A Rech et al.•Quaternary Research•2008

  Incluir item

• Late Quaternary vegetation and climate history of a perennial river canyon in the Río Salado basin (22°S) of Northern Chile

  Open Access•Claudio Latorre, Julio L Betancourt et al.•Quaternary Research•2006

  Incluir item

• Variability of El Niño/Southern Oscillation activity at millennial timescales during the Holocene epoch

  Open Access•Christopher M Moy, Geoffrey O Seltzer et al.•Nature•2002

  Incluir item

• Emergence of social complexity among coastal hunter-gatherers in the Atacama Desert of northern Chile

  Open Access•Pablo A Marquet, C M Santoro et al.•Proceedings of the National…•2012

  Incluir item

• Late Pleistocene human occupation of the hyperarid core in the Atacama Desert, northern Chile

  Open Access•Claudio Latorre, C M Santoro et al.•Quaternary Science Reviews•2013

  Incluir item

• Paleoindian settlement of the high-altitude Peruvian Andes

  Open Access•Kurt Rademaker, Gregory Hodgins et al.•Science•2014

  Incluir item

• An ~15,000-Year Record of El Niño-Driven Alluviation in Southwestern Ecuador

  Open Access•Donald T Rodbell, Geoffrey O Seltzer et al.•Science•1999

  Incluir item

• Stationarity Is Dead

  Open Access•P C D Milly, Julio L Betancourt et al.•Science•2008

  Incluir item

• The Colorado Plateaus: Cultural Dynamics and Paleoenvironment

  Open Access•Robert C Euler, George J Gumerman et al.•Science•1979

  Incluir item

• Asian Monsoon Failure and Megadrought During the Last Millennium

  Open Access•Edward R Cook, Kevin J Anchukaitis et al.•Science•2010

  Incluir item

• North American drought

  Open Access•Edward R Cook, Robin Seager et al.•Earth-Science Reviews•2007

  Incluir item

• El Niño variability off Peru during the last 20,000 years

  Open Access•Bert Rein, Andreas Lückge et al.•Paleoceanography•2005

  Incluir item

• Hunter-Gatherer Mobility Strategies in the High Andes of Northern Chile during the Late Pleistocene-Early Holocene Transition (ca. 11,500–9500 CAL B.P.)

  Daniela Osorio, J M Capriles et al.•Journal of Field Archaeology•2017

  Incluir item

• Water, Drought, Climate Change, and Conflict in Syria

  Peter H Gleick•Weather, Climate, and Society•2014

  Incluir item

• Continuities and discontinuities in the socio-environmental systems of the Atacama Desert during the last 13,000 years

  Open Access•C M Santoro, J M Capriles et al.•Journal of Anthropological…•2017

  Incluir item

• Drought under global warming

  Open Access•Aiguo Dai•Wiley Interdisciplinary Reviews…•2011

  Incluir item

• Timing of occupation and regional settlement patterns revealed by time-series analyses of an archaeological radiocarbon database for the South-Central Andes (16°–25°S)

  Open Access•Eugenia Gayó, Claudio Latorre et al.•Quaternary International•2015

  Incluir item

• Archaeological silence and ecorefuges

  Lautaro Núñez, Isabel Cartajena et al.•Quaternary International•2013

  Incluir item

• Climate variability over the last two millennia in the North American Monsoon region, recorded in laminated lake sediments from Laguna de Juanacatlán, Mexico

  Open Access•E Metcalfe, S E Metcalfe et al.•The Holocene•2010

  Incluir item

• Hunting, Gathering, and Fishing on the Coast of the Atacama Desert

  Open Access•G Standen, C M Santoro et al.•Geoarchaeology•2017

  Incluir item

• Nuevos fechados del sitio Tarapacá-40

  Mauricio Uribe, Carolina Agüero et al.•Ñawpa Pacha•2015

  Incluir item

• Condiciones Paleovegetacionales Y Asentamientos Humanos Durante El Formativo Temprano

  Open Access•Leticia González‐Silvestre, Leticia González-Silvestre et al.•Chungara•2013

  Incluir item

• High-altitude adaptation and late Pleistocene foraging in the Bolivian Andes

  Open Access•J M Capriles, Juan Albarracin-Jordan et al.•Journal of Archaeological Science…•2016

  Incluir item

• SHCal13 Southern Hemisphere Calibration, 0–50,000 Years cal BP

  Open Access•Alan G Hogg, Angela Hogg et al.•Radiocarbon•2013

  Incluir item

• Recent and Planned Developments of the Program OxCal

  Open Access•Christopher B Ramsey, Sharen Lee•Radiocarbon•2013

  Incluir item

• Managing the risk of climatic variability in late prehistoric northern Chile

  Open Access•C Zori, Erika Brant•Journal of Anthropological…•2012

  Incluir item

• Arquitecturas Formativas De Las Quebradas De Guatacondo Y Tarapacá a Través Del Proceso Aldeano (Ca. 900 Ac-1000 Dc)

  Open Access•Simón Urbina Araya, Leonor Adán Alfaro et al.•Boletín del Museo Chileno de Arte…•2012

  Incluir item

• The Anasazi in a Changing Environment

  Anne I Woosley, George J Gumerman•The American Indian Quarterly•1991

  Incluir item

• Aproximación al asentamiento humano temprano en los oasis de San Pedro de Atacama

  Open Access•Carolina Agüero P, Carolina Agüero•Estudios Atacameños Arqueología y…•2005

  Incluir item

• Aldeas en los bosques de Prosopis

  Open Access•Leonor Adán, Susana Urbina et al.•Estudios Atacameños Arqueología y…•2013

  Incluir item

• Emergencia de comunidades pastoralistas formativas en el sureste de la Puna de Atacama

  Open Access•Lautaro Núñez, Lautaro Núñez A et al.•Estudios Atacameños Arqueología y…•2006

  Incluir item

• Cazadores de la Puna Seca y Salada del Area Centro Sur Andina (norte de Chile)

  Open Access•Lautaro Núñez, C M Santoro et al.•Estudios Atacameños Arqueología y…•2023

  Incluir item

• Cronología Y Organización Económica De Las Poblaciones Arcaicas De La Costa De Taltal

  Open Access•Diego Salazar, Valentina Figueroa et al.•Estudios Atacameños Arqueología y…•2015

  Incluir item

• El período Formativo de Tarapacá y su cerámica

  Open Access•Mauricio Uribe R•Estudios Atacameños Arqueología y…•2009

  Incluir item

• Acerca de complejidad, desigualdad social y el complejo cultural Pica-Tarapacá en los Andes Centro-Sur (1000-1450 DC)

  Open Access•Mauricio Uribe R•Estudios Atacameños Arqueología y…•2006

  Incluir item

• Objetos 'Misceláneos' Y Dinámicas Sociales en Contextos Cazadores Recolectores De La Precordillera De Arica, Extremo Norte De Chile

  Open Access•C Castillo, Marcela Sepúlveda•Chungara•2017

  Incluir item

• Iconos Claves Del Formativo en Tarapacá (Chile)

  Open Access•Gloria Cabello, Francisco Gallardo•Chungara•2014

  Incluir item

• El Tránsito Arcaico-Formativo en La Circumpuna Y Valles Occidentales Del Centro Sur Andino

  Open Access•Lautaro Núñez, C M Santoro•Chungara•2011

  Incluir item

• Geoglifos Y Tráfico Prehispánico De Caravanas De Llamas en El Desierto De Atacama (Norte De Chile)

  Open Access•Luis Briones, Lautaro Núñez et al.•Chungara•2005

  Incluir item

• Recursos Hídricos Altoandinos, Estrategias De Desarrollo Económico Y Royectos De Riego

  Open Access•Luis Castro Castro, Luis Castro C•Chungara•2004

  Incluir item

• Early Man in Arizona

  Open Access•P S Martins, Paul S Martin•American Antiquity•1963

  Incluir item