Our research made it possible to identify the diversity of perceptions about fourteen native plants of the Quilombola territory, based on cultural and gender characteristics. For the Quilombolas, ten of the fourteen species are present in forest areas, and of these, more than half are very abundant. In this environment, the perceptions of women and men were similar for most species, which expresses the strong connection and regular activities of the community in the forest areas of their territory. Important species such as Quina (Coutarea hexandra), Cipó-milome (Aristolochia triangularis) and Pau-pra-tudo (Picrasma crenata) are recognized as medicinal and related to their historical use. P. crenata is also vulnerable according to Brazilian Environment Secretariat (SEMA, 2014) [31]. Thus, we recommend that this species receive special attention by the community and environmental agencies, building together action plans involving the conservation of the region's native biodiversity.
C. hexandra is reported in the literature for malaria treatment [48, 49], with anti-inflammatory and antinociceptive effects in lyophilized aqueous extract of the inner bark of the species, showing no toxicity [50]. The traditional use of C. hexandra in the São Roque is to treat fever, stomach pains and, in solution with alcohol, for superficial wounds, avoiding infections. The part used for medicinal treatments is the bark, which can pose risks to its conservation. In the workshops, the species was considered at risk, associated with forest areas and classified as very important by both men and women. We therefore suggest the development of cooperative management and environmental education actions with the management of the National Parks, for the promotion of the species in line with its traditional use.
Traditional use of A. triangularis is to treat stomach aches. This is another very important species for the Quilombola community, but not seen at risk due to its high availability. Species of this genus have aristolochic acid, a toxic substance, which alerts to the recommendation for caution in the use. The ingestion of this acid can cause carcinogenic mechanisms, nephrotoxicity and it has an abortive effect [51]. Being one of the species of traditional use, it is substantially important to provide access to information about its toxicity and the proper care and precautions with its use. Of all the species used in the workshop, this is the only one that poses a health risk.
The other species had different perceptions of availability, harvesting intensity, distribution in environments, and degree of importance. These differences represent the multiple perceptions and perspectives that the same community has on their territory and biodiversity, and, in the case of the gender mediated perceptions, reflects their functional cultural roles [33]. Kelkar (2007) [52] discusses the domain theory of gender-specific knowledge, and this specificity is not exclusive, that is, knowledge can be shared, partially shared or specific [52], and shared knowledge can contain different degrees of a given knowledge domain [33].
Within the gender-specific knowledge domain [52], forest and mountain areas are identified by both the women's and men's groups as areas of male domain. Currently, most women do not go to the forests due to their advanced age, but they reported that when they were younger some accompanied their parents, or even went alone on walks and worked in the forest. However, they themselves stated that much of what they know about the species present in the forests comes from knowledge shared by their spouses or male relatives, which is a partially shared knowledge.
The terrero environment, perceived similarly by both gender groups, is where several species occur. The density of terramicina (Alternanthera brasiliana), guavirova (Campomanesia sp.) and araçá (Psidium cattleyanum) in this environment were perceived as higher for women than for men. The frequency with which women are in domestic areas, such as farms, yards and the road is greater than that of men, due to their social role in the family routine, which justifies these different perceptions of the abundance of species in these environments. The same occurs among the men’s group for forest and swidden environments, where they have more activities linked to these environments. The residences in the Quilombo São Roque are generally on the edge of or close to the roads, justifying the addition of this environment by the female group.
Inspired by collaborative participatory methodologies [9, 12] and socio-environmental management projects [10, 13], the participatory workshop made it possible to include the community in the research as research subjects, with a leading role in its development [9, 12]. The use of these methodologies, in addition to capturing data, promotes a space for collaboration where participants learn from each other and recognize the importance of their own knowledge, especially on the in situ conservation of species [13]. Consensus building on perceptions was encouraged in the classification of species at each stage of the workshop. By dividing the groups by gender, we provide a comfortable environment, especially for women who often avoid expressing their opinions and perceptions around men, a situation we experienced during interviews and free-listings.
The diversity of perceptions about plants and environments between genders justifies the attention and care that researchers and professionals in the field should give to knowledge gaps that are not addressed in socio-environmental studies and projects [28]. Recognition of the diversity of knowledge about natural resources is important, not only for ethnobiological studies, but also for land management, biodiversity conservation and cultural revitalization [28]. Gender, as a predictor of knowledge, is part of a group of factors that influence the construction of knowledge at individual and community levels.
Due to the overlapping of their territory with two national parks, the São Roque Quilombola community faced conflicts related to the management of natural resources for a long time. Based on a Term of Commitment signed in 2013 and in force since 2016, the status of use of the territory and its resources was agreed in parts, as well as the relations between the community and ICMBio (Instituto Chico Mendes para a Conservação da Biodiversidade, which manages the parks). Today, in addition to participating in the management council of the parks with the environmental agency, the community participates in community-based tourism actions, also focusing on conservation, territorial management and environmental education. The intelligence of the traditional management system and contemporary systems of community management for the use of natural resources or common goods have been and are still being rediscovered in the areas of conservation and development [53]. The involvement of local stakeholders and their traditional knowledge has significantly advanced in in situ biodiversity conservation strategies [14, 17]. This involvement can take place not only in the research procedure, but also include the community in the entire process of structuring, building, carrying out and concluding a research project, as exemplified by Rodrigues et al. (2020) [54].