Ethnobotany and progressive domestication ofjaltomata (solanaceae) in mexico and central america

Davis, Tilton; Bye, Robert

doi:10.1007/bf02858722

Cited by 37 publications

(18 citation statements)

References 13 publications

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“…Similar tendencies to those observed in this study have been documented for Amaranthus spp., Porophyllum ruderale and some species of Solanaceae such as Jaltomata, Physalis and Solanum. Farmers perform special management practices outside the cultivation areas, or tolerate them in agricultural fields; nevertheless, in these areas they control the density of individuals: they are kept until they produce flowers and then eliminated once they begin to compete with the main crops (Davies and Bye 1981;Williams 1985;Vasquez 1991;Mapes 1997).…”

Section: Discussionmentioning

confidence: 99%

“…These include examples in Asia and Africa (Harlan 1975;Hawkes 1983;Harris 1996;Zohary and Hopf 1993), Mesoamerica (Alcorn 1981(Alcorn , 1989Davies and Bye 1981;Colunga et al 1986;Pimienta-Barrios and Nobel 1994;Bye 1998;Caballero and Cortés 2001) and the Amazon (Anderson and Posey 1989;Balée 1989;Posey 1992). These intermediate management forms are known ''incipient management'' and historically have aimed at guaranteeing and increasing the availability of plant resources and improving their quality.…”

Section: Introductionmentioning

confidence: 99%

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Factors that influence the intensity of non-agricultural management of plant resources

2008

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We investigated the relationships of land tenure, biological, cultural and spatial variables and their effect on the intensity of management of 20 edible plants used by the Santa Maria Tecomavaca community in Oaxaca State, Mexico. We developed a non-linear generalized model showing that land ownership, cultural importance and biological characteristics of a plant are the most significant factors influencing farmers' decisions to intensify management of plant resources. On common land, species with high cultural importance and long life cycles are managed intensively, while, regardless of cultural importance, species with short life cycles are simply gathered. On land where particular people have an acknowledged right of use, species with long life cycles are always managed at an intermediate level of intensity regardless of their cultural importance, while for species with short life cycles, management intensity tends to slightly decrease as cultural importance increases. Even though management is generally more intensive in lands where individuals have use rights, as expected from the ''supervised collective action model'', culturally important resources are more intensively managed in communal areas, probably as a result of a long tradition of consumption and of their economic importance.Keywords Models of plant management Á Tehuacán-valley Mexico Á Wild food plants

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Factors that influence the intensity of non-agricultural management of plant resources

2008

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“…Also, they cannot be cultivated together with staple crops in communal lands either because they do not tolerate irrigation or are weedy (Pachycereus weberi, Solanum nigrescens and Opuntia pilifera). In other regions of Mexico, fast growing weeds are managed outside agricultural areas, kept within low density and fecundity rates, or others are eliminated once they begin to compete with the main crops (Davies and Bye 1981;Williams 1985;Vázquez 1991;Mapes 1997).…”

Section: Differences Among Species In the Three Modelsmentioning

confidence: 99%

Intra-cultural Differences in the Importance of Plant Resources and Their Impact on Management Intensification in the Tehuacán Valley, Mexico

et al. 2011

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Management of plant resources is a complex process that involves the interaction of numerous cultural, environmental, economic, and ecological factors Therefore, understanding factors influencing management decisions requires multidisciplinary approaches, including both quantitative and qualitative perspectives. This study explores quantitative approaches as methodological tools with which to identify patterns underlying more intensive management of plant resources. The research was conducted in the village of Santa María Tecomavaca, Oaxaca, in south-central México, within the semiarid Tehuacán-Cuicatlán Biosphere Reserve. Three models explaining the management intensity tendencies were identified, consistent with the pattern of multiple variables influencing plant management.

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“…Other studies have revealed that people tend to tolerate, protect or enhance these plants during agricultural activities (Davis and Bye 1982;Hernán-dez-Xolocotzi 1993;Espinosa-García and Díaz-Pérez 1996), while others have documented that they transplant them to or cultivate them in their home gardens (Blanckaert et al 2004). Studies carried out in different parts of Mexico, describe the coevolutionary relationship between people and useful weedy plants, and show evidence on initial phases of plant domestication [Lepidium virginicum L. (Bye 1979), Ibervillea millspaughii (Cogn.)…”

Section: Introductionmentioning

confidence: 99%

“…J.L. Gentry (Davis and Bye 1982), Phytolacca icosandra L., Chenopodium berlandieri Moq. (Bye 1993), Amaranthus spp.…”

Section: Introductionmentioning

confidence: 99%

Ethnobotanical, morphological, phytochemical and molecular evidence for the incipient domestication of Epazote (Chenopodium ambrosioides L.: Chenopodiaceae) in a semi-arid region of Mexico

Blanckaert

Paredes-Flores

Espinosa‐García

et al. 2011

Genet Resour Crop Evol

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Use and management of wild and weedy species may involve artificial selection, which can determine morphological, physiological, reproductive, and genetic divergences between wild and managed populations, resulting in the initial or incipient phases of plant domestication. In this study we combined ethnobotanical, morphological, phytochemical and genetic information for analyzing differences between managed and unmanaged populations of the Mexican edible weed, Epazote (Chenopodium ambrosioides L.), in Santa María Tecomavaca, Oaxaca, a rural community within the Tehuacán-Cuicatlán Biosphere Reserve, Mexico. Our hypothesis was that differences in morphology (e.g. leave dimensions and density of pubescence), phytochemistry (e.g. flavor, odor, and amount of strong scented and toxic compounds) and/or molecular genetic markers, between managed and wild populations of Epazote in Santa María Tecomavaca, would indicate that managed populations have been and/or are under a process of incipient domestication. Our results revealed the existence in the study area of morphological variants associated with a gradient of management intensity, which involved apparent improved palatability correlated with a lowering of chemical defense. Most remarkably, we found agreement in the groupings defined by the cluster analyses of morphological and genetic data. Although Epazote is considered a weed or, at best, a minor crop, the results from four lines of evidence (cultural differentiation patterns, gigantism, reduction in chemical defenses, toxic compounds and inheritance of adaptive traits) suggest the existence of an incipient domestication process in the study zone.

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Ethnobotany and progressive domestication ofjaltomata (solanaceae) in mexico and central america

Cited by 37 publications

References 13 publications

Factors that influence the intensity of non-agricultural management of plant resources

Factors that influence the intensity of non-agricultural management of plant resources

Intra-cultural Differences in the Importance of Plant Resources and Their Impact on Management Intensification in the Tehuacán Valley, Mexico

Ethnobotanical, morphological, phytochemical and molecular evidence for the incipient domestication of Epazote (Chenopodium ambrosioides L.: Chenopodiaceae) in a semi-arid region of Mexico

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