Impacts of Climatic Variabiity and Population Growth on Virgin Branch Anasazi Cultural Developments

Larson, Daniel O.; Michaelsen, Joel

doi:10.2307/281645

Cited by 35 publications

(29 citation statements)

References 23 publications

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“…Larson and Michaelsen 1990;Raab and Larson 1997;Jones et al 1999;Nunn 2000Nunn , 2003de Menocal 2001;Field 2004;Bourke et al 2007). is evidence contradicts the idea that there is little signi cant correlation between environmental change and changes in the Holocene archaeological record (e.g.…”

Section: Chronological Variation In Mollusc and Habitat Exploitationmentioning

confidence: 99%

Life on the Margins : An Archaeological Investigation of Late Holocene Economic Variability, Blue Mud Bay, Northern Australia

Faulkner¹

2013

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terra australis 38Terra Australis reports the results of archaeological and related research within the south and east of Asia, though mainly Australia, New Guinea and island Melanesia -lands that remained terra australis incognita to generations of prehistorians. Its subject is the settlement of the diverse environments in this isolated quarter of the globe by peoples who have maintained their discrete and traditional ways of life into the recent recorded or remembered past and at times into the observable present. (2000) Volume 16 List of volumes in Terra Australis

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Section: Chronological Variation In Mollusc and Habitat Exploitationmentioning

confidence: 99%

Life on the Margins : An Archaeological Investigation of Late Holocene Economic Variability, Blue Mud Bay, Northern Australia

Faulkner¹

2013

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“…The Virgin River Anasazi abandoned their settlements in southwestern Utah at about A.D. 1150, presumably in response to drought (Larson and Michaelsen, 1990;Lyneis, 1996). The Fremont, living along the eastern shore of Great Salt Lake, Utah, incorporated maize in their diets beginning A.D. ∼500; however, they ceased consumption of maize after A.D. 1150 (Coltrain and Leavitt, 2002).…”

Section: Maize and Migrationmentioning

confidence: 99%

Anasazi (Pre-Columbian Native-American) Migrations During The Middle-12Th and Late-13th Centuries – Were they Drought Induced?

2006

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Abstract. Severe droughts in the middle-12th and late-13th centuries appear to have affected Anasazi (pre-Columbian Native American) populations. During the first drought most of the great houses in the central San Juan Basin were vacated; the second drought resulted in the abandonment of the Four Corners region. During the first drought, villages may not have been completely abandoned. The multi-year drought periods probably were characterized by reductions in both winter and summer precipitation. Maize is dependent on winter precipitation for its germination and initial growth and on summer (monsoonal) precipitation for its continued growth. Reductions in precipitation are hypothesized to have resulted in low yields of maize, the dietary staple of the Anasazi. A comparison of historic climate data and tree-ring-based reconstructions of precipitation in the Four Corners region with tree-ring-based reconstructions of the Pacific Decadal Oscillation (PDO) and the Atlantic Multidecadal Oscillation (AMO) indicate that severe and persistent drought in the Four Corners region occurs when the PDO is negative and the AMO is positive. Historic climate data from the greater San Juan Basin indicate that a negative PDO is characterized by reductions in both water-year and summer precipitation, reinforcing the concept that at least some multi-year droughts involved weakening of the summer monsoon with attendant decreases in the yields of maize.

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“…3) (Berry, 1982). Anasazi groups that occupied lands in southwestern Utah; e.g., the Virgin River Anasazi also abandoned their settlements during the middle-12th-century (Larson and Michaelsen, 1990;Lyneis, 1996).…”

Section: Anasazi Population Dynamicsmentioning

confidence: 99%

Possible impacts of early-11th-, middle-12th-, and late-13th-century droughts on western Native Americans and the Mississippian Cahokians

Benson

Berry

Jolie

et al. 2007

Quaternary Science Reviews

115

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Stahle, David W.; and Hattori, Eugene M., "Possible impacts of early-11th-, middle-12th-, and late-13th-century droughts on western Native Americans and the Mississippian Cahokians" (2007). USGS AbstractOne or more of three intense and persistent droughts impacted some Native American cultures in the early-11th, middle-12th and late13th centuries, including the Anasazi, Fremont, Lovelock, and Mississippian (Cahokian) prehistorical cultures. Tree-ring-based reconstructions of precipitation and temperature indicate that warm drought periods occurred between AD 990 and 1060, AD 1135 and 1170, and AD 1276 and 1297. These droughts occurred during minima in the Pacific Decadal Oscillation and may have been associated with positive values of the Atlantic Multidecadal Oscillation. Each of the Native American cultures was supported, to a greater or lesser degree, by precipitation-dependent resources. Both the Four Corners region and Cahokia were sites of intense growth between about AD 1050 and 1130, and by AD 1150, cultures in both regions were undergoing stress. By AD 1300 the Anasazi and Fremont cultures had collapsed and their residual populations had either left their homelands or withered. In the case of Fremont populations, the AD 990-1060 drought may have had the greatest impact. This drought also may have affected the Anasazi, for it was at the end of this drought that some people from Chaco migrated to the San Juan River valley and founded the Salmon Ruin great house. Detailed data do not exist on the number of Lovelock habitation sites or populations over time; however, Lovelock populations appear to have retreated from the western Great Basin to California by AD 1300 or shortly thereafter. Published by Elsevier Ltd.

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Impacts of Climatic Variabiity and Population Growth on Virgin Branch Anasazi Cultural Developments

Cited by 35 publications

References 23 publications

Life on the Margins : An Archaeological Investigation of Late Holocene Economic Variability, Blue Mud Bay, Northern Australia

Life on the Margins : An Archaeological Investigation of Late Holocene Economic Variability, Blue Mud Bay, Northern Australia

Anasazi (Pre-Columbian Native-American) Migrations During The Middle-12Th and Late-13th Centuries – Were they Drought Induced?

Possible impacts of early-11th-, middle-12th-, and late-13th-century droughts on western Native Americans and the Mississippian Cahokians

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