Results 71 to 80 of about 14,402 (248)
Abstract The soil mantle of the tropical karstic landscapes of Southern Mexico was shaped by specific processes of pedogenesis and long‐term human impacts of ancient Maya agriculture. To understand the interaction between natural and human‐induced soil‐forming processes in the calcareous mountains of Chiapas state, we studied soil toposequences around ...
P. García‐Ramírez +9 more
wiley +1 more source
Chapter 10. Intensification does not require modification: Tropical Swidden and the Maya
Abstract What is involved in finding fields? Agricultural intensification and its archaeological correlates are not always obvious. Archaeologists frequently equate capital‐based investment and arable farming as the sole path to intensified production.
Anabel Ford
wiley +1 more source
En este estudio se analizan las actividades productivas y el estado del conocimiento actual que poseen los campesinos sobre el manejo de la milpa en tres comunidades del municipio de Jesús Carranza, Veracruz.
Juana Ortiz-Timoteo
doaj
LOS OVNIS EN JOCOTITLAN Cerro Xocotepetl y alguna milpa [PDF]
Corría el año de 1994, cuando me desempeñaba como Secretario del H. Ayuntamiento de Jocotitlán, México, un día del mes de septiembre antes de salir de mi domicilio recibí una llamada de mi amigo Jesús Arciniega López, quien me dijo que en su terreno ...
CHIMAL CARDOSO, CARLOS
core
We assess two genetic indicators for 919 taxa, representing 5271 populations in nine countries, including megadiverse countries and developing economies. The majority of taxa assessed (83%) had data available to calculate at least one indicator. Although most species assessed have most populations maintained (Populations maintained indicator), a large ...
Alicia Mastretta‐Yanes +48 more
wiley +1 more source
This study investigates how landscape diversity and climatic factors affect the populations and nutritional health of honey bee colonies in Mexico. It was found that greater landscape diversity correlates with higher pollen diversity, while areas with more agriculture and urbanization show lower bee densities.
Francisco J. Balvino‐Olvera +10 more
wiley +1 more source
Integrated assessment of environmental, economic and social sustainability of maize in Chiapas, México [PDF]
En este estudio se evaluó la sostenibilidad de los agroecosistemas tradicionales y alternativos de producción de maíz en tres Ejidos de la Región Selva de Chiapas, mediante la aplicación del enfoque agroecológico (MESMIS).
Aguilar-Jiménez, Carlos E. +2 more
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Tropical deforestation modelling : a comparative analysis of different predictive approaches. The case study of Peten, Guatemala. [PDF]
The frequent use of predictive models for analysing of complex, natural or artificial, phenomena is changing the traditional approaches to environmental and hazard problems.
Bruno, Roberto +4 more
core +2 more sources
In closed‐canopy systems globally, plants exhibit intense competition for light, prioritizing vertical growth to attain elevated positions within the canopy. Light competition is especially intense in tropical rainforests because of their dense shaded stands, and during forest succession because of concomitant changes in vertical light profiles.
Tomonari Matsuo +4 more
wiley +1 more source
Índice• Antecedentes • El proceso de urbanización de la ciudad de México • La región sur del Distrito Federal • La delegación Milpa Alta • La asesoría técnica de la UNAM en la delegación de Milpa Alta• La planeación estratégica • El trabajo del gabinete •
Alejandro Suárez Pareyón
doaj

