Identifying opportunities and constraints to effective management of invasive Australian wattle (Acacia) species in grassland landscapes, South Africa

Abstract

Land users’ motives for participating in conservation and restoration activities are influenced by the local and broader scale contexts and are often determined by their perceptions of the current situation. Therefore, understanding land users’ views is essential for gaining insights into the opportunities and constraints for ecosystem restoration. In this study, we sought to understand land users’ perceptions of alien wattle (Acacia spp.) clearing activities and explore opportunities and challenges to wattle management as perceived by two groups of land users, i.e., communal land users and commercial livestock farmers, in the upper Umzimvubu catchment, South Africa. The results show marked differences in the key barriers and motives for participation by the two groups. Improvement in water flow was the most cited positive change from wattle clearing mentioned by commercial (75%) and communal (71%) farmers. Most commercial farmers (75%) cited improved grazing as one of the clearing benefits compared to only 39% of communal land users. Employment opportunity was a key motive mentioned by communal land users (25%). In contrast, most commercial farmers mentioned securing good grazing (50%) and water supply (33%) as important motives for removing wattle. Most commercial farmers mentioned high costs (35%) incurred when controlling wattle as the main barrier, whereas communal land users mentioned their old age (20%) and thus physical inability as the main barrier preventing them from maintaining cleared areas. These findings highlight the need to consider a mix of incentives that may effectively engage different land users in invasive alien plant clearing in different contexts.

Keywords

• barriers
• enablers
• incentives
• invasive plants
• land users
• motives
• social-ecological systems
• working for water