11/06/2026
ForestAction Nepal's continuous engagement in invasive species
Realising the threat posed by invasive alien species of plants and animals in our ecosystems and people’s wellbeing, ForestAction Nepal is undertaking participatory action research (PAR) on various dimensions of invasive species management. Our decade-long engagement on Invasive species includes knowledge generation, capacity building, field-level experiments, control campaigns, and awareness raising and sensitisation.
Back in 2020, our researchers reported Mimosa diplotricha, an obnoxious w**d from eastern Nepal, and subsequently assessed its socio-ecological impacts, mapped its spatial distribution, organised removal campaigns, demonstrated good methods of controlling at the local level, and prepared communication materials to sensitise different stakeholders. These activities on Mimosa diplotricha were supported by Darwin Initiative projects under the Biodiversity Challenge Funds, UK. Some of the output related to M. diplotricha can be found here.
https://forestaction.org/wp-content/uploads/2023/12/Tracking-Mimosa-diplotricha.pdf
https://www.researchgate.net/publication/343417958_Mimosa_diplotricha_Fabaceae_A_New_Report_of_Invasive_Weed_from_Eastern_Tarai_of_Nepal
Recently, our researchers have spotted an invasive species in a new locality in southern Nepal, which is otherwise known only from a small locality. The species, Sphagneticola trilobata, reported from the Paanchkhal area of Kabhre in 2021, has now been spotted in Southern Nepal, Makawanpur. The species is one among the 100 worst invasive alien species in the world.
Upon noticing the species, we interacted with locals and discussed potential management options. Our researchers have traced its introduction pathways. It appears that the species was brought to Harnamadi area of Makwanpur from Calcutta, India, five years ago. Noting its occurrence in the landscape, our researchers have communicated this observation to concerned authorities and experts for rapid action.
