Research on the ecology and impacts of invasive alien species on biodiversity: a systematic literature review

Abstract

The spread of species worldwide, previously governed by natural processes, is now largely influenced by globalization, trade development, and human movement. Some species become invasive, causing major concerns due to their negative impacts on natural ecosystems and biodiversity. This study employs a methodological approach combining bibliometric analyses and the PRISMA protocol. Using VOSviewer and R, we analyzed scientific literature on invasive alien species. Results reveal a sustained growth in scientific publications, reflecting researchers' increasing interest in this issue. However, a crucial observation emerges: most research is not integrated into national policies with concrete management measures. The results show a growing scientific focus on invasive species, indicating their significance as a research subject. Despite this academic attention, a critical gap exists between fundamental research and practical management strategies. An urgent need exists to bridge the divide between scientific research on invasive species and practical management programs at local, regional, and national levels. This approach is essential to safeguard biogeographical regions already impacted and preserve non-invaded areas.