| use patterns and knowledge of medicinal species among two rural communities in brazil's semi-arid northeastern region. | the present work seeks to quantify the knowledge of two rural communities in the semi-arid region of the state of pernambuco (northeastern brazil) concerning two species of native medicinal plants: "aroeira do sertão", myracrodruon urundeuva (engl.) fr. all. (anacardiaceae) and "angico", anadenanthera colubrina (vell.) brenan (mimosaceae). semi-structured interviews were carried out, combined with a checklist/inventory method, which yielded different indexes for quantifying knowledge and use of ... | 2006 | 16298502 |
| useful plants of the semi-arid northeastern region of brazil--a look at their conservation and sustainable use. | the use of native plants was examined in three rural communities in the semi-arid of the state of pernambuco, in northeastern brazil. the techniques employed in the present study combined a number of different techniques of data-gathering, including semi-structured interviews, guided tour, key-informants, and participating observation, and sampling of the vegetation to evaluate the biodiversity of useful plants. a total of 61 woody species were cataloged, mostly used for construction purposes or ... | 2007 | 17219240 |
| is the use-impact on native caatinga species in brazil reduced by the high species richness of medicinal plants? | a study of the diversity of uses of medicinal plants and the traditional knowledge associated with the caatinga vegetation was undertaken in the semi-arid region of pernambuco state, ne brazil. we tested the utilitarian redundancy model (as an analogy to the ecological redundancy hypothesis) in evaluating the implications of the use of medicinal plants by rural communities to examine whether the presence of numerous species with analogous functions (identical therapeutic applications, for exampl ... | 2007 | 17616289 |