Diverse approaches to protecting biodiversity: The different conservation measures discussed as possible other effective area-based conservation measures

Other effective area-based conservation measures (OECMs) create opportunities for a wide range of area-based conservation strategies. As countries seek to integrate OECMs into conservation planning, it is useful to consider the types of areas that might meet the formal criteria. To support this goal, I analyzed the different types of measures discussed as possible OECMs in the literature, identifying a wide range of measures, far more diverse than those currently recognized as OECMs. There was a strong emphasis on measures with conservation as a secondary management objective, with most studies being supportive of the potential to balance biodiversity conservation and sustainable resource use. However, many studies have highlighted the need to ensure biodiversity outcomes are achieved and sustained, and that appropriate governance and management structures are in place. Concerns were raised about measures associated with resource extraction, such as fisheries and forestry, which were often considered incompatible with conservation. Very few studies offered a nuanced discussion of specific measures or evaluated whether sites offer conservation outcomes, leaving clear knowledge gaps in translating speculation into evidence. Nevertheless, the current literature offers a strong starting point from which to target potential case studies to build the evidence base necessary to advance OECMs.