The Brazilian Amazon has experienced intense land-use changes in recent decades, driven by agricultural expansion and urban growth, resulting in deforestation and environmental degradation. In Acre, such changes reflect the transition from extractivism to cattle ranching as the main drivers of forest conversion. This study aimed to integrate information on entomological collection sites in the state with data on land use and cover to understand the distribution of scientific effort. Specifically, the spatial distribution across regions, the temporal evolution (1988-2024), and the relationship between land uses and knowledge areas were analyzed. The results indicate that, of the 70 eligible publications totaling 217 sampling points, the highest concentration occurred near research centers in Rio Branco (98 points) and Cruzeiro do Sul (57 points), in the Baixo Acre and Juruá regions, respectively. In contrast, extensive conservation zones remain undersampled. Studies in forest, pasture, and urbanized areas predominated, with a significant increase in scientific production since the 2000s, especially between 2019 and 2024. This study concludes that the strong spatial concentration and gaps in ecologically relevant regions highlight the need to expand sampling efforts to support conservation and territorial planning strategies in Acre.
Chaves et al. (Fri,) studied this question.