The importance of home gardens for the conservation of knowledge and practices about medicinal plants in an Environmental Protection Area in the Atlantic Forest of the State of Rio de Janeiro, Brazil

Abstract

The Palmares Environmental Protection Area covers almost 90% of Paty do Alferes Atlantic Forest with great biodiversity. This work aimed to research about the knowledge local specialists have about medicinal plants in order to describe the relationship between home gardens and the conservation of biodiversity and local knowledge. 107 ethnospecies were reported belonging to 37 botanical families, Asteraceae the most abundant and a majority of native species. The highest RCF species were Plectranthus barbatus and the highest RI was obtained for Plantago australis/P. guilleminiana. Plants were cited mainly for the treatment of illness related to digestive system and the highest FIC was about the use of plants related to eye diseases. Local experts mainly cited plants for low complexity health problems. Home gardens, as the main collection site, contribute to minimizing anthropic pressure and extractivism, which favours a sustainable relationship within the APA, at least regarding to medicinal plants.