Comparative analysis of four medicinal floras: phylogenetic methods to identify cross-cultural patterns

Summary Four medicinal floras were compared using phylogenetic methods, to test whether there are shared patterns in medical plant use at the level of the whole medicinal floras, or for specific therapeutic applications. Checklists of the native plants and medicinal plants of Oman were compiled, and analyzed alongside existing checklists for Nepal, the Cape of South Africa and New Zealand. We reconstructed a plant phylogeny at generic level for Oman, and a new, more inclusive phylogeny to represent the genera found in all four local floras. Methods from community phylogenetics were used to identify clustering and overdispersion of the plants used. The impacts of using local or more inclusive phylogenies and different null model selections were explored. We found that Omani medicinal plant use emphasizes the same deep lineages of flowering plants as the other three medicinal floras, most strongly when comparing Omani and Nepalese medicinal plants. Drivers of this similarity might be floristic composition, opportunity for exchange of knowledge and shared beliefs in the causation of illness. Phylogenetic patterns among therapeutic applications are cross‐predictive within and between cultures, and must be interpreted with care since inappropriate use of null models can result in spurious similarity. High levels of cross‐predictivity suggest that targeting plants used for specific therapeutic applications to identify specific bioactives may have limited value. We outline the questions that might be addressed using a global phylogeny and medicinal plant checklists, suggest the best methods for future studies and propose how findings might be interpreted

The evolution of traditional knowledge: environment shapes medicinal plant use in Nepal

Traditional knowledge is influenced by ancestry, inter-cultural diffusion and interaction with the natural environment. It is problematic to assess the contributions of these influences independently because closely related ethnic groups may also be geographically close, exposed to similar environments and able to exchange knowledge readily. Medicinal plant use is one of the most important components of traditional knowledge, since plants provide healthcare for up to 80% of the world’s population. Here, we assess the significance of ancestry, geographical proximity of cultures and the environment in determining medicinal plant use for 12 ethnic groups in Nepal. Incorporating phylogenetic information to account for plant evolutionary relatedness, we calculate pairwise distances that describe differences in the ethnic groups’ medicinal floras and floristic environments. We also determine linguistic relatedness and geographical separation for all pairs of ethnic groups. We show that medicinal uses are most similar when cultures are found in similar floristic environments. The correlation between medicinal flora and floristic environment was positive and strongly significant, in contrast to the effects of shared ancestry and geographical proximity. These findings demonstrate the importance of adaptation to local environments, even at small spatial scale, in shaping traditional knowledge during human cultural evolution

छिन्ताङ शब्दकोश तथा व्याकरण [Chintang Dictionary and Grammar]

Trilingual dictionar

Generating Power: debates on development around the Nepalese Arun-3 hydropower project

Contested since 1990, the Arun-3 dam in Nepal has so far generated more heat than hydropower involving a host of complex negotiations between its advocates and critics on the local, national and transnational levels. Cancelled after a complaint before the World Bank Inspection Panel in 1995, work is soon to be resumed. An Indian public sector company interested in exporting the electricity to India will finance it. This paper focuses on how local communities have experienced the decade-long uncertainties concerning the project and the approach road to be built. Their hopes of access to markets, electrification and a modern lifestyle will be explored in the context of an understanding of development as a desiring machine and governmentality studies. I will argue for a parallel application of the two approaches to conceptualize the entanglement of desires for development and a deep sense of local powerlessness vis-a-vis external actors. Keywords: Nepal; hydropower; development; governmentality; desir