Offsite Ecological Impacts in the Anthropocene: Definition, Mechanisms, and Challenges

Human activities increasingly disturb biodiversity and ecosystems far beyond their immediate areas. As human activities intensify on Earth's surface, these offsite disturbances threaten biodiversity at regional and global scales. Despite their significance, offsite ecological impacts remain poorly understood, often confused with related phenomena (e.g., edge effects) and excluded from evaluation frameworks. This study clarified the definition of offsite ecological impacts, examined their mechanisms (sources, paths, and drivers), and discussed their intensification under global change. We (1) clarify the offsite ecological impacts from other offsite phenomena, such as secondary, indirect, and competition impacts; (2) identify key drivers, including mining, urbanization, road networks, agriculture, and emerging technologies (e.g., renewable energy infrastructure), and explain how they contribute to offsite ecological impacts; (3) analyze the mechanisms by which disturbances spread, such as pollutants (e.g., heavy metals and microplastics) transported via air, soil, water, and biological or anthropogenic vectors; and (4) highlight challenges in identifying and mitigating offsite impacts, emphasizing how global environmental changes complicate predictions and hinder effective solutions. Addressing these challenges requires improved spatial monitoring, predictive modeling, and innovative conservation strategies. This framework advances the understanding of offsite ecological impacts in the Anthropocene, helping to balance human development with biodiversity conservation and supporting the UN Biodiversity Goals.