The Tanoe-Ehy swamp forest (FMTE) has been identified as a high-priority site for primate conservation in West Africa. In addition to a lack of knowledge of the plant communities, the site is subject to pressure from local populations both on the periphery and in the interior. The aim of this ethnobotanical study is therefore to determine the uses made of the plant species collected by the local populations. To achieve this, ethnobotanical surveys were carried out in seven localities on the outskirts of the forest. Generally speaking, direct interviews with local people enabled us to identify the techniques and practices used to plant crops and the plants harvested in the study area. A total of 160 people were interviewed, most of them male farmers. The survey showed that most of the plantation land had been acquired by inheritance and had been established on forest land. Monocultural plantations are the most abundant in the study area. It is worth noting that the preferred place for collecting plants is within the FMTE. Most of the plant species collected are used for traditional medicine. They include Landolphia membranacea, Tabernaemontana crassa, Combretum aphanopetalum, Parquetina nigrescens, Microdesmis keayana, Alchornea cordifolia, and Strophanthus hispidus with a rarity index of less than 80%. Given the importance of the FMTE in terms of a particular ecosystem and biodiversity conservation, it is desirable and urgent that, in addition to awareness campaigns for local populations, the process of its definitive classification be accelerated to put an end.

The contribution of remote sensing to controlling the proliferation of invasive aquatic plants is of paramount importance, as it makes it possible to better monitor the spatio-temporal evolution of these plants’ occupation of water bodies. The surface of the Comoé River estuary has always been occupied by Invasive Aquatic Plants (IAPs). This study was carried out with a view to listing all the aquatic plant species colonising the surface of the estuarine water body and analysing the dynamics of their proliferation. To achieve this, the study’s first stage consisted of carrying out an itinerant inventory along transects installed on the water body to record all the species encountered. In the second stage, the colonisation dynamics of the estuary were analysed using four Landsat (TM) 1986, 1989, Landsat 7 (ETM+) 2004 and Landsat 8 (OLI) 2022 satellite images. The floristic inventory identified 8 species divided into 8 genera and 8 distinct families at the surface of the estuary water body. Analysis of land use dynamics from 1986 to 2022 shows a variation in the annual rate of expansion of IAPs on the surface of the estuary water body. The recent period from 2004 to 2022 is characterised by a considerable rate of expansion of around 1240.2%. The results of this study could constitute a reliable scientific database for the implementation of a policy to control the proliferation of these IAPs at the surface of the water body of the Comoé River estuary.