This work presents bromatological analyses performed on seeds and fruits of Sabal mexicana Mart.;... more This work presents bromatological analyses performed on seeds and fruits of Sabal mexicana Mart.; a comparison with data existent of other palms and some phytochemical data are presented. A discussion of the possible importance of some results obtained and the potential use of this palm is presented
Page 1. Abstract. In 1994, a project was funded by the European Union to assess the genetic diver... more Page 1. Abstract. In 1994, a project was funded by the European Union to assess the genetic diversity of a range of Central American and Caribbean tree species and to determine its implications for conservation, sustainable use, and management. ...
The sabal palmetto woodland is a tropical plant formation dominated by Sabal mexicana, with restr... more The sabal palmetto woodland is a tropical plant formation dominated by Sabal mexicana, with restricted distribution to southeast Mexico. Sabal palms grow on poor soils but accumulate large quantities of organic substrate in their crowns, harboring a contingent of plants that use it as phorophyte. Although it is a threatened formation, basic information on its biodiversity is scant. We examined the floristic diversity of recruited (diameter at breast height, DBH, ‡1 cm) and understory (DBH £ 1 cm) plants, and its variation with anthropogenic disturbance. We also examined the floristic diversity of plants that use the sabal palms as phorophytes, and assessed its variation with human impact. All plants present in transects within a conserved and an adjacent perturbed area were sampled. The list of observed taxa shows that this vegetation has a clear affinity with tropical dry and wet forests of Mexico, with a small representation of taxa from desert ecosystems. The floristic contingent included a total of 81 species in 2000 m 2 . Richness, composition and diversity were affected by disturbance. Recruited and understory vegetation in the disturbed site were 5-and 1.6-times less diverse than in the conserved site, and species of mature, conserved vegetation were substituted by heliophytes in the disturbed site. In contrast, abundance of palms and diversity and identity of epiphytic/hemiepiphytic plants were not affected by disturbance. We show that even monodominated tropical ecosystems growing on poor soils have a high floristic diversity and that current anthropogenic impact threatens not only species and populations but also entire plant formations.
... Detailed result. return to summary results page. Little EL. 1971 Atlas of United States trees... more ... Detailed result. return to summary results page. Little EL. 1971 Atlas of United States trees: vol. 1. Conifers and important hardwoods. US Dep. Agric. Misc. Publ., no. 1146. unpaged (1971) Maps Geog=3 Floristics (NORTH_AMERICA: USA) ( , 197105170). ...
Patterns abstracted from interview sessions, discussions, and observed behavior during 13 months ... more Patterns abstracted from interview sessions, discussions, and observed behavior during 13 months of fieldwork among the Huastec in northeastern Mexico suggest some of the factors shaping Huastec botanical resource perception. The recognition of a plant as a particular sort of resource depends on the interaction of a number of factors. Among the many factors discussed here are the biological, physical, and chemical properties of the available plants, human biological and cultural needs, Huastec perception of their natural and sodal environment, the subsistence system, household demography, economic strategies, politico-economic standing, historical trends, and illness and curing beliefs. Factors influencing the resource status of a subset of plants used by the Huastec for fire· wood, construction, and medicinal purposes are discussed. An understanding of plant use context is necessary to interpret Huastec plant use data, to study Huastec plant management systems, to investigate the impact of human activities on plants and plant communities and to evaluate the adaptive functions of ethnobiological knowledge. It is suggested that inquiry into the reasons for species' inclusion in useful plant lists can bring to ethnobotany a much needed focus for organizing systematic, multidisciplinary research yielding integrable data.
This work presents bromatological analyses performed on seeds and fruits of Sabal mexicana Mart.;... more This work presents bromatological analyses performed on seeds and fruits of Sabal mexicana Mart.; a comparison with data existent of other palms and some phytochemical data are presented. A discussion of the possible importance of some results obtained and the potential use of this palm is presented
Page 1. Abstract. In 1994, a project was funded by the European Union to assess the genetic diver... more Page 1. Abstract. In 1994, a project was funded by the European Union to assess the genetic diversity of a range of Central American and Caribbean tree species and to determine its implications for conservation, sustainable use, and management. ...
The sabal palmetto woodland is a tropical plant formation dominated by Sabal mexicana, with restr... more The sabal palmetto woodland is a tropical plant formation dominated by Sabal mexicana, with restricted distribution to southeast Mexico. Sabal palms grow on poor soils but accumulate large quantities of organic substrate in their crowns, harboring a contingent of plants that use it as phorophyte. Although it is a threatened formation, basic information on its biodiversity is scant. We examined the floristic diversity of recruited (diameter at breast height, DBH, ‡1 cm) and understory (DBH £ 1 cm) plants, and its variation with anthropogenic disturbance. We also examined the floristic diversity of plants that use the sabal palms as phorophytes, and assessed its variation with human impact. All plants present in transects within a conserved and an adjacent perturbed area were sampled. The list of observed taxa shows that this vegetation has a clear affinity with tropical dry and wet forests of Mexico, with a small representation of taxa from desert ecosystems. The floristic contingent included a total of 81 species in 2000 m 2 . Richness, composition and diversity were affected by disturbance. Recruited and understory vegetation in the disturbed site were 5-and 1.6-times less diverse than in the conserved site, and species of mature, conserved vegetation were substituted by heliophytes in the disturbed site. In contrast, abundance of palms and diversity and identity of epiphytic/hemiepiphytic plants were not affected by disturbance. We show that even monodominated tropical ecosystems growing on poor soils have a high floristic diversity and that current anthropogenic impact threatens not only species and populations but also entire plant formations.
... Detailed result. return to summary results page. Little EL. 1971 Atlas of United States trees... more ... Detailed result. return to summary results page. Little EL. 1971 Atlas of United States trees: vol. 1. Conifers and important hardwoods. US Dep. Agric. Misc. Publ., no. 1146. unpaged (1971) Maps Geog=3 Floristics (NORTH_AMERICA: USA) ( , 197105170). ...
Patterns abstracted from interview sessions, discussions, and observed behavior during 13 months ... more Patterns abstracted from interview sessions, discussions, and observed behavior during 13 months of fieldwork among the Huastec in northeastern Mexico suggest some of the factors shaping Huastec botanical resource perception. The recognition of a plant as a particular sort of resource depends on the interaction of a number of factors. Among the many factors discussed here are the biological, physical, and chemical properties of the available plants, human biological and cultural needs, Huastec perception of their natural and sodal environment, the subsistence system, household demography, economic strategies, politico-economic standing, historical trends, and illness and curing beliefs. Factors influencing the resource status of a subset of plants used by the Huastec for fire· wood, construction, and medicinal purposes are discussed. An understanding of plant use context is necessary to interpret Huastec plant use data, to study Huastec plant management systems, to investigate the impact of human activities on plants and plant communities and to evaluate the adaptive functions of ethnobiological knowledge. It is suggested that inquiry into the reasons for species' inclusion in useful plant lists can bring to ethnobotany a much needed focus for organizing systematic, multidisciplinary research yielding integrable data.
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Papers by Gaston Romero