David Bravo-Avilez

David Bravo-Avilez
Metropolitan Autonomous University | UAM · Departamento de Biología

Ph D

About

18
Publications
6,627
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62
Citations
Introduction
Currently, I am doing a post-doctorate at the Universidad Autónoma de Querétaro.

Publications

Publications (18)
Article
Full-text available
Across the process of domestication, human selection produces changes in target attributes as well as changes that are not necessarily desired by humans due to pleiotropic or linked genes. In this paper we addressed, correlated changes between genetic diversity, damage level, defense mechanisms (resistance and tolerance), and fitness due to the dom...
Article
Full-text available
Stenocereus pruinosus and S. stellatus are columnar cacti from central Mexico, distributed in the Valle de Tehuacán and the Mixteca Baja regions. Both species have populations subject to three different forms of human management: wild, in situ and cultivated, growing in sympatry. The objectives of the present study were to compare variation in dama...
Article
Full-text available
La agricultura en la Ciudad de México ha sido importante desde la época prehispánica, desarrollándose en diversos sistemas agrícolas tradicionales. Si bien se conocen las especies domesticadas más importantes, la composición y riqueza de las arvenses no ha sido descrita de manera detallada. El presente estudio tuvo como objetivos: 1) Registrar el c...
Preprint
Full-text available
Stenocereus pruinosus and S. stellatus are columnar cacti from central Mexico, distributed in the Valle de Tehuacán and the Mixteca Baja regions. Both species have populations subject to three different forms of human management: wild, in situ and cultivated, growing in sympatry. The objectives of the present study were to compare variation in dama...
Article
Full-text available
Antecedentes: La selección humana favorece rasgos de interés, pero también implica cambios en otros correlacionados. En especies con domesticación incipiente, la variación en la intensidad de selección genera una diferenciación entre sus poblaciones que permite analizar estos cambios. Pregunta: ¿Cómo son los cambios entre rasgos seleccionados y co...
Article
Full-text available
Background Oaxaca is one of the most diverse states in Mexico from biological and cultural points of view. Different ethnic groups living there maintain deep and ancestral traditional knowledge of medicinal plants as well as traditional practices and beliefs about diseases/illnesses and cures. Previous ethnobotanical research in this state has help...
Poster
Full-text available
1er Congreso Internacional de Cactáceas y Suculentas.
Article
Full-text available
Background: Field observations of damage in columnar cacti of central Mexico, and previous evidence in scientific literature, indicated the absence of systematic information about kinds of damage, vectors, and pathogens, in this botanical family. Questions: How is the knowledge of damage and defense mechanisms in cacti? Is there a pattern in causa...
Article
Full-text available
Columnar cacti are distributed naturally in arid and semi-arid zones of America. Almost 50% are found in Mexico, were 45 species have been used for 8,500 years and currently are commercialized in regional or international markets. Rot damage in monopodic stems or branches was observed recently in columnar cacti of Central Mexico. Previous reports s...
Article
Full-text available
The first report of transgenic maize in Mexico was published in 2001 for Oaxaca, Mexico. Subsequent studies were controversial, because most of the maize samples analyzed from different years and localities, were negative. The purpose of this paper is to publish records of the presence of transgenic maize in Priority Terrestrial Regions in Oaxaca,...
Article
Full-text available
The first report of transgenic maize in Mexico was published in 2001 for Oaxaca, Mexico. Subsequent studies were controversial, because most of the maize samples analyzed from different years and localities, were negative. The purpose of this paper is to publish records of the presence of transgenic maize in Priority Terrestrial Regions in Oaxaca,...
Article
Full-text available
Antecedentes y Objetivos: En México existen alrededor de 156 especies de gimnospermas nativas pertenecientes a seis familias. Para el estado de Oaxaca, se registran 45 especies de gimnospermas y sus habitantes poseen un sobresaliente conocimiento ancestral en el uso tradicional de este grupo taxonómico. El presente estudio contribuye al registro y...
Article
Full-text available
The ethnobotanical importance of the family Piperaceae is recognized mainly for its medicinal properties. A total of 106 species of two genera of this family (Piper and Peperomia) have been collected in Oaxaca, but only 18 are recorded in scientific publications as medicinal, edible, veterinary, or ritual plants. The objectives of this study are to...
Article
Full-text available
Lycophyta and Polypodiophyta have been used by humans worldwide since ancient times, yet little has been documented. This paper analyzes and discusses the different uses of these plants in three Priority Terrestrial Regions (PTR) of conservation in the state of Oaxaca in Mexico. Our objectives were to: 1) document the traditional knowledge and uses...
Article
Full-text available
El estado de Oaxaca representa un importante acervo de maíz en México. Estudios previos han indicado la presencia de muchas variedades locales y razas agronómicas en la Sierra Norte y Valles Centrales. La Sierra Sur ha sido poco estudiada a pesar de la presencia de comunidades indígenas zapotecas, las cuales cultivan maíz, entre otras especies, y h...
Article
Full-text available
The state of Oaxaca represents an important pool of maize in Mexico. Previous studies have indicated the presence of many local varieties and agronomic races, mainly at the Northern Sierra and Central Valleys. The Southern Sierra has not been studied, in spite of the presence of indigenous Zapotec communities, which cultivate maize, among other cro...
Article
Full-text available
Se registra la presencia, no documentada previamente, de Cactophagus spinolae sobre 2 cactáceas, las pitayas Stenocereus pruinosus y S. stellatus, en 2 regiones del centro de México. El daño en los tallos lo provocan las larvas de este curculiónido. En general, se presenta en baja frecuencia, aunque es significativamente mayor en S. stellatus, así...

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