Severe Little Ice Age drought in the midcontinental United States during the Mississippian abandonment of Cahokia

Abstract Drought has long been suspected as playing an important role in the abandonment of pre-Columbian Native American settlements across the midcontinental United States between 1350 and 1450 CE. However, high-resolution paleoclimatic reconstructions reflecting local effective moisture (the rati...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	David P. Pompeani, Broxton W. Bird, Jeremy J. Wilson, William P. Gilhooly, Aubrey L. Hillman, Matthew S. Finkenbinder, Mark B. Abbott
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/39436fef3ca14f6ea0e21e73ec7f6263
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:39436fef3ca14f6ea0e21e73ec7f6263
record_format	dspace
spelling	oai:doaj.org-article:39436fef3ca14f6ea0e21e73ec7f62632021-12-02T15:23:16ZSevere Little Ice Age drought in the midcontinental United States during the Mississippian abandonment of Cahokia10.1038/s41598-021-92900-x2045-2322https://doaj.org/article/39436fef3ca14f6ea0e21e73ec7f62632021-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-92900-xhttps://doaj.org/toc/2045-2322Abstract Drought has long been suspected as playing an important role in the abandonment of pre-Columbian Native American settlements across the midcontinental United States between 1350 and 1450 CE. However, high-resolution paleoclimatic reconstructions reflecting local effective moisture (the ratio of precipitation to evaporation) that are located in proximity to Mississippi period (1050–1450 CE) population centers are lacking. Here, we present a 1600-year-long decadally resolved oxygen isotope (δ18O) record from Horseshoe Lake (Collinsville, IL), an evaporatively influenced oxbow lake that is centrally located within the largest and mostly densely populated series of Mississippian settlements known as Greater Cahokia. A shift to higher δ18O in the Horseshoe Lake sediment record from 1200 to 1400 CE indicates that strongly evaporative conditions (i.e., low effective moisture) were persistent during the leadup to Cahokia’s abandonment. These results support the hypothesis that climate, and drought specifically, strongly impacted agriculturally based pre-Columbian Native American cultures in the midcontinental US and highlights the susceptibility of this region, presently a global food production center, to hydroclimate extremes.David P. PompeaniBroxton W. BirdJeremy J. WilsonWilliam P. GilhoolyAubrey L. HillmanMatthew S. FinkenbinderMark B. AbbottNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q David P. Pompeani Broxton W. Bird Jeremy J. Wilson William P. Gilhooly Aubrey L. Hillman Matthew S. Finkenbinder Mark B. Abbott Severe Little Ice Age drought in the midcontinental United States during the Mississippian abandonment of Cahokia
description	Abstract Drought has long been suspected as playing an important role in the abandonment of pre-Columbian Native American settlements across the midcontinental United States between 1350 and 1450 CE. However, high-resolution paleoclimatic reconstructions reflecting local effective moisture (the ratio of precipitation to evaporation) that are located in proximity to Mississippi period (1050–1450 CE) population centers are lacking. Here, we present a 1600-year-long decadally resolved oxygen isotope (δ18O) record from Horseshoe Lake (Collinsville, IL), an evaporatively influenced oxbow lake that is centrally located within the largest and mostly densely populated series of Mississippian settlements known as Greater Cahokia. A shift to higher δ18O in the Horseshoe Lake sediment record from 1200 to 1400 CE indicates that strongly evaporative conditions (i.e., low effective moisture) were persistent during the leadup to Cahokia’s abandonment. These results support the hypothesis that climate, and drought specifically, strongly impacted agriculturally based pre-Columbian Native American cultures in the midcontinental US and highlights the susceptibility of this region, presently a global food production center, to hydroclimate extremes.
format	article
author	David P. Pompeani Broxton W. Bird Jeremy J. Wilson William P. Gilhooly Aubrey L. Hillman Matthew S. Finkenbinder Mark B. Abbott
author_facet	David P. Pompeani Broxton W. Bird Jeremy J. Wilson William P. Gilhooly Aubrey L. Hillman Matthew S. Finkenbinder Mark B. Abbott
author_sort	David P. Pompeani
title	Severe Little Ice Age drought in the midcontinental United States during the Mississippian abandonment of Cahokia
title_short	Severe Little Ice Age drought in the midcontinental United States during the Mississippian abandonment of Cahokia
title_full	Severe Little Ice Age drought in the midcontinental United States during the Mississippian abandonment of Cahokia
title_fullStr	Severe Little Ice Age drought in the midcontinental United States during the Mississippian abandonment of Cahokia
title_full_unstemmed	Severe Little Ice Age drought in the midcontinental United States during the Mississippian abandonment of Cahokia
title_sort	severe little ice age drought in the midcontinental united states during the mississippian abandonment of cahokia
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/39436fef3ca14f6ea0e21e73ec7f6263
work_keys_str_mv	AT davidppompeani severelittleiceagedroughtinthemidcontinentalunitedstatesduringthemississippianabandonmentofcahokia AT broxtonwbird severelittleiceagedroughtinthemidcontinentalunitedstatesduringthemississippianabandonmentofcahokia AT jeremyjwilson severelittleiceagedroughtinthemidcontinentalunitedstatesduringthemississippianabandonmentofcahokia AT williampgilhooly severelittleiceagedroughtinthemidcontinentalunitedstatesduringthemississippianabandonmentofcahokia AT aubreylhillman severelittleiceagedroughtinthemidcontinentalunitedstatesduringthemississippianabandonmentofcahokia AT matthewsfinkenbinder severelittleiceagedroughtinthemidcontinentalunitedstatesduringthemississippianabandonmentofcahokia AT markbabbott severelittleiceagedroughtinthemidcontinentalunitedstatesduringthemississippianabandonmentofcahokia
_version_	1718387256809488384

Severe Little Ice Age drought in the midcontinental United States during the Mississippian abandonment of Cahokia

Ejemplares similares