Shade as a Cause of the Association Between the Cactus Neobuxbaumia Tetetzo and the Nurse Plant Mimosa Luisana in the Tehuacan Valley, Mexico

1991 ◽  
Vol 79 (4) ◽  
pp. 961 ◽  
Author(s):  
Alfonso Valiente-Banuet ◽  
Exequiel Ezcurra
Keyword(s):  
Nurse Plant ◽  
Tehuacán Valley ◽  
Tehuacan Valley

scholarly journals New AMS Radiocarbon Ages from the Preceramic Levels of Coxcatlan Cave, Puebla, Mexico: A Pleistocene Occupation of the Tehuacan Valley?

2021 ◽  
pp. 1-15
Author(s):  
Andrew D. Somerville ◽  
Isabel Casar ◽  
Joaquín Arroyo-Cabrales
Keyword(s):  
Mass Spectrometry ◽  
Last Glacial Maximum ◽  
Food Production ◽  
Tehuacán Valley ◽  
Rock Shelter ◽  
Last Glacial ◽  
Tehuacan Valley ◽  
Peopling Of The Americas ◽  
The Last Glacial Maximum ◽  
The Last Glacial

Archaeological studies at Coxcatlan Cave in the Tehuacan Valley of southern Puebla, Mexico, have been instrumental to the development of the chronology for the region and for our understanding of the origins of food production in the Americas. This article refines the Preceramic chronology of the Tehuacan Valley by presenting 14 new accelerated mass spectrometry (AMS) radiocarbon ages from faunal bone samples uncovered from early depositional levels of the rock shelter. Although bones associated with the El Riego (9893–7838 cal BP), Coxcatlan (7838–6375 cal BP), and Abejas (6375–4545 cal BP) phase zones of the cave yielded ages similar to those of the previously proposed chronology for the region, bones from the Ajuereado phase zones at the base of the cave yielded surprisingly old ages that range from 33,448 to 28,279 cal BP, a time prior to the Last Glacial Maximum. Because these early ages are many thousands of years older than current models estimate for the peopling of the Americas, they require reassessments of the artifacts and ecofacts excavated from these early zones.

Ecological Status of Beaucarnea gracilis , an Endemic Species of the Semiarid Tehuacán Valley, México

1997 ◽  
Vol 11 (2) ◽  
pp. 367-374 ◽  
Author(s):  
Yuria Cardel ◽  
Victor Rico-Gray ◽  
José G. García-Franco ◽  
Leonard B. Thien
Keyword(s):  
Endemic Species ◽  
Ecological Status ◽  
Tehuacán Valley ◽  
Tehuacan Valley

Biotic interactions and the population dynamics of the long-lived columnar cactus Neobuxbaumia tetetzo in the Tehuacán Valley, Mexico

1999 ◽  
Vol 77 (2) ◽  
pp. 203-208 ◽  
Author(s):  
Héctor Godínez-Alvarez ◽  
Alfonso Valiente-Banuet ◽  
Leopoldo Valiente Banuet
Keyword(s):  
Population Dynamics ◽  
Matrix Models ◽  
Biotic Interactions ◽  
Positive Interactions ◽  
Elasticity Analysis ◽  
Finite Rate ◽  
Tehuacán Valley ◽  
Columnar Cactus ◽  
Tehuacan Valley ◽  
Rate Of Increase

The giant columnar cactus Neobuxbaumia tetetzo (Coulter) Backeberg is the dominant species of a vegetation type locally called "tetechera" that occupies ca. 400 km2 in the Tehuacán Valley. As a way to analyse the role of biotic interactions on the population dynamics of this species, we conducted an elasticity analysis, using matrix models elaborated from field data, to determine the finite rate of increase and the critical stages of the life cycle that were related to the biotic interactions occurring during these stages. Although the estimated finite rate of increase did not differ from unity there were significant differences between the actual and predicted size distributions. Elasticity analysis showed that survivorship was the most important life-history parameter to the finite rate of increase. Because survivorship depends on the presence of nurse plants, our results emphasise the importance of positive interactions on the population dynamics of long-lived columnar cacti.Key words: biotic interactions, Cactaceae, deserts, matrix models, population dynamics.

Pollination biology of the hemiepiphytic cactus Hylocereus undatus in the Tehuacán Valley, Mexico

2007 ◽  
Vol 68 (1) ◽  
pp. 1-8 ◽  
Author(s):  
A. Valiente-Banuet ◽  
R. Santos Gally ◽  
M.C. Arizmendi ◽  
A. Casas
Keyword(s):  
Pollination Biology ◽  
Tehuacán Valley ◽  
Tehuacan Valley ◽  
Hylocereus Undatus

scholarly journals TEK and biodiversity management in agroforestry systems of different socio-ecological contexts of the Tehuacán Valley

2016 ◽  
Vol 12 (1) ◽  
Author(s):  
Mariana Vallejo-Ramos ◽  
Ana I. Moreno-Calles ◽  
Alejandro Casas
Keyword(s):  
Agroforestry Systems ◽  
Biodiversity Management ◽  
Tehuacán Valley ◽  
Tehuacan Valley

A contextual study of the ‘fossilized’ prehispanic canal systems of the Tehuacan Valley, Puebla, Mexico

Antiquity ◽  
2001 ◽  
Vol 75 (289) ◽  
pp. 505-506 ◽  
Author(s):  
James A. Neely
Keyword(s):  
Tehuacán Valley ◽  
Natural Processes ◽  
Mineral Deposition ◽  
Tehuacan Valley ◽  
Northern Portion ◽  
Canal Systems ◽  
Chronological Sequence ◽  
Maize Domestication ◽  
Contextual Study ◽  
Cross Dating

Nearly three decades ago, Woodbury & Neely (1972) published the first analysis of the extensive and complex system of Prehispanic Canals found in the northern portion of the Tehuacan Valley of Puebla, Mexico. These springfed canals, functioning to supply waters for irrigation and domestic uses, were uniquely preserved in near entirety by natural processes. The canals have been ‘fossilized’ in place through a process of mineral deposition. They are clearly visible on the landscape for many kilometres and have aggraded in height, now standing 2 to 3 m high in several places. Time, funding and the archaeological methodology of the mid 1960s limited Woodbury & Neely’s fieldwork, and therefore the study did not fully investigate the system. Although a basic description and discussion of the technology and functioning of the system was accomplished, a detailed analysis of these aspects remained to be done. A schematic mapping of the system was accomplished, but an accurate mapping of the canals and associated habitation and administrative sites was lacking. The chronological placement of these canals was attempted by means of the cross-dating of ceramics on archaeological sites found bordering the channels, but an accurate chronological sequence of the system’s development was not attainable. A general climatic reconstruction of the valley was generated, but since the emphasis placed by the Tehuacan Archaeological and Botanical Project was on the earlier periods of habitation that focused on the development of maize domestication, the climatic contexts into which the canals were later constructed was not known.

scholarly journals Vulnerability and risk management of Agave species in the Tehuacán Valley, México

2014 ◽  
Vol 10 (1) ◽  
pp. 53 ◽  
Author(s):  
América Delgado-Lemus ◽  
Ignacio Torres ◽  
José Blancas ◽  
Alejandro Casas
Keyword(s):  
Risk Management ◽  
Tehuacán Valley ◽  
Tehuacan Valley
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