Results 41 to 50 of about 4,521 (159)

Fecal Steroids as Tracers of Human Population and Waste Management Practices at the Ancient Maya City of Ucanal, Guatemala

Archaeometry, EarlyView.
ABSTRACT Geochemical data compiled from dried sediments from three water reservoirs at the ancient Maya city of Ucanal, Petén, Guatemala, reveal low to undetectable fecal biomarker concentrations. These low concentrations may be the result of the aerobic decay of sterols combined with well‐managed waste disposal practices.
Jean D. Tremblay, Peter M. J. Douglas, Christina T. Halperin, Yves Gélinas   +3 more
wiley   +1 more source

Droughts and human impact in the ancient Uaymil region of the Maya lowlands inferred from a 2800‐year sedimentary archive at Lake Kaná, Mexico

Boreas, EarlyView.
The relationship between the climate and societal transformation in Maya lowlands has long been debated, particularly the role of drought in shaping the civilization trajectory during the Classic Period. A high‐resolution, multi‐proxy, geochemical record from Lake Kaná, located in the underexplored Uaymil region of the Yucatán Peninsula in Mexico ...
Haydar B. Martinez‐Dyrzo, Priyadarsi D. Roy, Benjamin Gwinneth, Irma G. Vargas‐Martinez, Alejandro A. Aragon‐Moreno, Roger Medina‐Gonzales   +5 more
wiley   +1 more source

Nota sobre la presencia de portulaca rubricaulis H.B.K. (Portulacaceae) en la península de Yucatán [PDF]

, 2003
Portulaca rubricaulis H.B.K. es una especie que se distribuye principalmente en la zona del Mar Caribe, desde Florida hasta la parte norte de Sudamérica, y de la cual se tenían escasos registros como integrante de la flora de la Península de Yucatán.
Ocampo Acosta, Gilberto, GILBERTO ALEJANDRO OCAMPO ACOSTA, Gilberto Ocampo   +2 more
core   +1 more source

Dietary patterns in mild cognitive impairment and dementia in older adults from Yucatan, Mexico

Frontiers in Nutrition
BackgroundSome dietary patterns and dietary components have an important role in preventing and helping to improve patients’ quality of life of individuals with Mild Cognitive Impairment (MCI) and dementia.
Angel Gabriel Garrido-Dzib, Angel Gabriel Garrido-Dzib, Berenice Palacios-González, María Luisa Ávila-Escalante, Erandi Bravo-Armenta, Azalia Avila-Nava, Ana Ligia Gutiérrez-Solis   +6 more
doaj   +1 more source

Integrating fossil data in ecological niche models to improve predictions of future habitat of Caribbean corals

Conservation Biology, EarlyView.
Abstract Ecological niche models (ENMs) are used to assess the abiotic preferences of species by linking their occurrences to the environmental conditions in which they live. We developed a fossil‐informed ENM framework that integrates mid‐Holocene and modern occurrences to test niche stability and reconstruct abiotic niche characteristics for four ...
Claire. M. Williams, Fernando Machado‐Stredel, Rowan C. Martindale, Corinne E. Myers   +3 more
wiley   +1 more source

Primer registro de la maleza agrícola e invasiva Amaranthus palmeri (Amaranthaceae) para la flora de la Península de Yucatán y actualización de la diversidad de Amaranthus en la región.

Botan‪ical Sciences, 2019
Antecedentes: Amaranthus palmeri es una hierba dioica que se ha convertido en una especie invasora por su capacidad de adaptación y alta resistencia a herbicidas.
Ivonne Sánchez-del Pino, Alfredo Dorantes-Euan, Ariadna Ibarra-Morales   +2 more
doaj   +1 more source

Imaging Point Source Groundwater Discharges in a Confined Coastal Aquifer Using Electrical Resistivity

Groundwater, EarlyView.
Marine electrical resistivity tomography (ERT) is applied to characterize point‐source submarine groundwater discharge (PSGD) along NW Yucatán. ERT observations and forward modeling constrain conduit detectability under varying hydrogeological conditions.
Mariana Gómez‐Nicolás, Armando Huitzilt‐Rodriguez, Enrique Iñiguez, Roger Pacheco‐Castro, Marco Pérez‐Flores, Paulo Salles, Fiona Whitaker   +6 more
wiley   +1 more source

Michel Antochiw, Historia cartográfica de la península de Yucatán

, 1997
Reseña sobre Michel Antochiw, Historia cartográfica de la península de Yucatán.
Ramírez Ruiz, Marcelo
core   +1 more source

Vegetación insular de la península de Yucatán

Botan‪ical Sciences, 1983
Se presenta un estudio de la vegetación de las islas que rodean la Península de Yucatán, dando la lista de las especies vegetales que la habitan, caracterizando a las comunidades vegetales encontradas con las especies dominantes en cada una de ellas ...
José Salvador Flores-Guido
doaj   +1 more source

From Social Justice to Indigenous Peoples' Rights: Continuities and (Re)framings in Ejido Property Claims in Yucatán, Mexico

Journal of Agrarian Change, EarlyView.
ABSTRACT This article examines how long‐standing local conflicts concerning the nature of common property, the distribution of access and administrative rights associated with it, and more broadly the nature of the community and the forms of citizenship that organise its governance shape demands for justice regarding land transfers to outside investors
Eric Léonard, Kelly Redouté, María Gabriela Durán Valis   +2 more
wiley   +1 more source