Maize and ancient Maya droughts

Abstract The ancient Maya culture of Mesoamerica shaped landscapes for centuries, in an area where maize (Zea mays) cultivation is considered a fundamental crop in the diet of present and ancient Mesoamerican cultures. Pollen records from sites with different environmental and climatic conditions of...

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Main Authors: Gerald A. Islebe, Nuria Torrescano-Valle, Mirna Valdez-Hernández, Alicia Carrillo-Bastos, Alejandro A. Aragón-Moreno
Format: Article
Language:English
Published: Nature Portfolio 2022-12-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-022-26761-3
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author Gerald A. Islebe
Nuria Torrescano-Valle
Mirna Valdez-Hernández
Alicia Carrillo-Bastos
Alejandro A. Aragón-Moreno
author_facet Gerald A. Islebe
Nuria Torrescano-Valle
Mirna Valdez-Hernández
Alicia Carrillo-Bastos
Alejandro A. Aragón-Moreno
author_sort Gerald A. Islebe
collection DOAJ
description Abstract The ancient Maya culture of Mesoamerica shaped landscapes for centuries, in an area where maize (Zea mays) cultivation is considered a fundamental crop in the diet of present and ancient Mesoamerican cultures. Pollen records from sites with different environmental and climatic conditions of the Yucatán Peninsula (Mexico) and Peten (Guatemala) evidence a clear relationship between increased maize pollen and periods of reduced precipitation caused by El Niño Southern Oscillation (ENSO) while moist periods are characterized by low maize pollen presence. ENSO conditions were not evenly distributed across the Yucatán Peninsula, and regional droughts vary according to regional climate and geographical conditions. Our results indicate a strong relationship of increased maize and tropical forest decrease with dry periods, while the Late Preclassic Humid Period (ca. 500–200 BCE) is characterized by the absence of maize pollen. The dry Late Preclassic (300 BCE-250 CE) was a key period for increased maize production, suggesting a new conceptualization of maize. Maize changed from a basic diet crop to a pragmatic product to face adverse environmental conditions.
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spelling doaj.art-d9098a2008be43fb8297148039424cec2022-12-25T12:14:41ZengNature PortfolioScientific Reports2045-23222022-12-0112111110.1038/s41598-022-26761-3Maize and ancient Maya droughtsGerald A. Islebe0Nuria Torrescano-Valle1Mirna Valdez-Hernández2Alicia Carrillo-Bastos3Alejandro A. Aragón-Moreno4El Colegio de la Frontera Sur, Unidad ChetumalEl Colegio de la Frontera Sur, Unidad ChetumalEl Colegio de la Frontera Sur, Unidad ChetumalTecnológico Nacional de México / IT de ChetumalEl Colegio de la Frontera Sur, Unidad ChetumalAbstract The ancient Maya culture of Mesoamerica shaped landscapes for centuries, in an area where maize (Zea mays) cultivation is considered a fundamental crop in the diet of present and ancient Mesoamerican cultures. Pollen records from sites with different environmental and climatic conditions of the Yucatán Peninsula (Mexico) and Peten (Guatemala) evidence a clear relationship between increased maize pollen and periods of reduced precipitation caused by El Niño Southern Oscillation (ENSO) while moist periods are characterized by low maize pollen presence. ENSO conditions were not evenly distributed across the Yucatán Peninsula, and regional droughts vary according to regional climate and geographical conditions. Our results indicate a strong relationship of increased maize and tropical forest decrease with dry periods, while the Late Preclassic Humid Period (ca. 500–200 BCE) is characterized by the absence of maize pollen. The dry Late Preclassic (300 BCE-250 CE) was a key period for increased maize production, suggesting a new conceptualization of maize. Maize changed from a basic diet crop to a pragmatic product to face adverse environmental conditions.https://doi.org/10.1038/s41598-022-26761-3
spellingShingle Gerald A. Islebe
Nuria Torrescano-Valle
Mirna Valdez-Hernández
Alicia Carrillo-Bastos
Alejandro A. Aragón-Moreno
Maize and ancient Maya droughts
Scientific Reports
title Maize and ancient Maya droughts
title_full Maize and ancient Maya droughts
title_fullStr Maize and ancient Maya droughts
title_full_unstemmed Maize and ancient Maya droughts
title_short Maize and ancient Maya droughts
title_sort maize and ancient maya droughts
url https://doi.org/10.1038/s41598-022-26761-3
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