The study on importance of traditional practices in conservation of medicinal plants in West Usambara Mountains, Tanzania was conducted by using focus group discussions, interviews, participant observation, and botanical survey. Nine traditional practices for conservation of wild plants were identified as domestication; beliefs in sacredness of trees; beliefs in sacred forests; respect of cultural forests; protection of plants at the burial sites; selective harvesting; secrecy; collection of deadwood for firewood, and use of energy-saving traditional stoves. Through botanical surveys of sacred forests, cultural forests, farms/homesteads, and burial sites, some 1,518 wild plants belonging to 100 species were identified. A large proportion (85%) of these plants had medicinal value. Of the 173 respondents, 82%, 81%, 74%, and 71% believed that sustainable use and conservation of medicinal plants can be achieved through secrecy, plant protection at burial sites, sacredness of plants and domestication, respectively. About 89% of the respondents pursued domestication (at least five plants each) and 70% had retained sacred trees (at least one tree each), of which the majority had medicinal value. Few respondents were aware of the positive role played by sacred forests and cultural forests (38% and 21%, respectively) in conservation of medicinal plants. It is concluded that the traditional management practices have a significant role in the conservation of biodiversity. This conservation role has a direct connection with human health since most of the plant species have medicinal value, which a majority of the rural people rely on. The paper recommends that traditional management practices should be encouraged since they serve a dual purpose as important conservation strategy and as an essential component of primary health care.

We investigated the availability, preference, and consumption of indigenous forest foods in Uluguru North

The role of domestication in conserving indigenous plant diversity on farmlands was studied in West Usambara Mountains, Tanzania by structured, semi‐structured and unstructured interviews; participant observation; literature review and botanical identification in March 2006. There was high diversity of indigenous plant species on farmlands (73%) compared with exotics (27%). For the number of plants per species, a small proportion of indigenous plants (14%) were recorded compared with exotics (86%). Although the number of domesticated indigenous plant species has declined by 8% between 1998 and 2006, still 96% of the respondents practise domestication and they have domesticated at least one indigenous plant species each. Gender equity in domestication is lacking given that male‐headed households had domesticated significantly more plant species on farms than female‐headed households. Sustainability in domestication is questionable because of increasing number of exotic plants of very few species on farmlands, the phenomenon that encourages monoculture, thus threatening conservation of species diversity in inhabited areas. Suggestions for promoting domestication as an important indigenous method for conserving biodiversity are given, including the need for more number of studies to explore the biodiversity of other organisms associated with the domesticated indigenous plants.

The limited capacity of governments in developing countries to service primary health care has resulted in a rapid increase in use of indigenous medicinal plants. This increase, together with other biological and non-biological factors, has rendered these plants vulnerable to over-use and extirpation. Domestication is a conservation intervention that can relieve pressure on medicinal species. In order to ensure effectiveness and sustainability of an intervention, understanding the influencing factors is imperative. We examined the influence of gender and some socio-economic factors on domestication of medicinal plants in the West Usambara Mountains of northern Tanzania. Participatory wealth ranking, structured and semi-structured interviews, botanical surveys and participant observations were employed in data collection. Results showed that domestication has played a fundamental role in conservation of medicinal plants in the study area. Forty (89%) and twelve (27%) of forty-five indigenous plant species were domesticated on farms and around homesteads, respectively. A total of 89% of respondents (n ¼ 173) had domesticated medicinal plants on their farms and around homesteads. Gender was the most important factor that influenced this practice, with more male-headed than female-headed households involved in the domestication effort. This can be attributed to social and cultural factors that, besides dispossessing women of tenure rights over resources and land, also subject them to heavy workloads and therefore diminish the time available for plant domestication. The number of domesticated medicinal plants also depended on age, affluence, farm size, household size and ethnicity. We recommend that agroforestry research should focus not only on integrating forest plants in farmlands, but also on cultural, socio-economic and institutional aspects affecting the whole system of domestication.

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