Importance of Using Ethnobiological Knowledge for the Conservation of Medicinal Plants Biodiversity in the Lar Region (Iran)

Today’s world is confronted with many environmental concerns, including the extinction of plant species. Plants are harvested indiscriminately due to their usefulness in medicine, the economy, and agriculture. The need to preserve biodiversity, particularly in the case of plants, necessitates the use of ethnobiological knowledge. Ethnobiological knowledge is traditional knowledge based on indigenous peoples’ use of nature and the environment, which they have gained over the years through numerous trials and errors. The purpose of this study is to investigate the role of indigenous knowledge in the use and conservation of plants by local people.  This study was performed in three villages in Lar National Park: Polour, Ab-e-ask, and Niak, which have the highest population in the Lar region. The primary research method used was qualitative methods such as direct observation, interviews, and questionnaires, as well as instruments such as a voice recorder, Excel software, Arc GIS, and SPSS 25. Our results indicate that indigenous knowledge of local experts in Lar National Park is about the causes of plant decay in this area, germination, flowering time, experts’ knowledge about the time and method of harvesting to reduce damage, and valuable therapeutic information about plants. Indigenous knowledge offers significant potential in plant conservation, especially for medicinal plants, exposed to a high risk of extinction due to widespread use. Our results highlight the importance of including local knowledge holders as active partners in biodiversity protection in the Lar region.