The recent publication of a World Scientistsʼ Warning to Humanity highlighted the fact that climate change, absent strenuous mitigation or adaptation efforts, will have profound negative effects... Show moreThe recent publication of a World Scientistsʼ Warning to Humanity highlighted the fact that climate change, absent strenuous mitigation or adaptation efforts, will have profound negative effects for humanity and other species, affecting numerous aspects of life. In this paper, we call attention to one of these aspects, the effects of climate change on medicinal plants. These plants provide many benefits for human health, particularly in communities where Western medicine is unavailable. As for other species, their populations may be threatened by changing temperature and precipitation regimes, disruption of commensal relationships, and increases in pests and pathogens, combined with anthropogenic habitat fragmentation that impedes migration. Additionally, medicinal species are often harvested unsustainably, and this combination of pressures may push many populations to extinction. A second issue is that some species may respond to increased environmental stresses not only with declines in biomass production but with changes in chemical content, potentially affecting quality or even safety of medicinal products. We therefore recommend actions including conservation and local cultivation of valued plants, sustainability training for harvesters and certification of commercial material, preservation of traditional knowledge, and programs to monitor raw material quality in addition to, of course, efforts to mitigate climate change. Show less
Alcantara Rodriguez, M.; Francozo, M.; Andel, T.R. van 2019
The Historia Naturalis Brasiliae (HNB, 1648) is the most complete treatise on Brazilian flora and fauna created in the seventeenth century. Scientists Marcgrave and Piso depicted hundreds of plants... Show moreThe Historia Naturalis Brasiliae (HNB, 1648) is the most complete treatise on Brazilian flora and fauna created in the seventeenth century. Scientists Marcgrave and Piso depicted hundreds of plants and described uses, vernacular names, and diseases in Dutch Brazil. We aimed to verify whether these plants are still used similarly, using herbarium vouchers and taxonomic literature to identify the species described in the HNB and reviewing historical and modern ethnobotanical literature to analyze whether the HNB documented specific plants and uses for the northeast region. We highlighted Old World species, as they indicate plant introduction before and during the trans-Atlantic slave trade and exchange of African ethnobotanical knowledge. Of the 378 species found in the HNB, 256 (68%) were useful, mostly used for healing and food in a similar way (80%) both in the seventeenth century and in modern Brazil. Only one species (Swartzia pickelii) is endemic to northeast Brazil, while the others are more widely distributed. The HNB includes one of the first reports on African crops in Brazil, such as sesame, okra, and spider plant. This study brings insights on indigenous and African plant knowledge retentions since the creation of the HNB and acknowledges its non-European contributors. Show less
This article summarizes some findings of research on plant names and plant use of the Suri people (more widely known by outsiders as "Surma"), a relatively isolated group of agro-pastoralists in... Show moreThis article summarizes some findings of research on plant names and plant use of the Suri people (more widely known by outsiders as "Surma"), a relatively isolated group of agro-pastoralists in the border area of Southwest Ethiopia and Sudan. The research was carried out as part of a long-term anthropological study on the Suri in the years 1992-1999. The most prevalent health problems of the Suri are intestinal and stomach diseases, parasites, malaria, infections and burns. For several of these afflictions the Suri have indigenous medicine and surgery. However, they are now beginning to demand modern medicine (tablets, ointments, injections) when they see that it is available. The traditional ethno-medicinal knowledge is uncritically replaced. This is not to say that all Suri traditional knowledge was healthy and effective. But the transition to "modern medicine" is made without a proper testing and investigation of the workings and the potential of the Suri plants and medical practices in use until now. Bibliogr., notes Show less
The present article offers a descriptive survey of the most important plants used by the Southeast Surmic-speaking Me'en in southwestern K„fa, Ethiopia, based on information gathered over a period... Show moreThe present article offers a descriptive survey of the most important plants used by the Southeast Surmic-speaking Me'en in southwestern K„fa, Ethiopia, based on information gathered over a period of 14-months field research (1989-1991). Data covering the Me'en name of each plant, the scientific name, if known, and/or the Amharic equivalent and a brief description of the plant's use are presented in tabular form. The following categories are distinguished: plants used for house building and household utensils, plants used for clothing, magical plants, famine plants, medicinal plants, and ritual plants. The emphasis is on medicinal and ritual plants. Show less
