AUTHOR=Wang Lijuan TITLE=A comparative analysis of protected area expansion strategies for biodiversity and ecosystem services: a case study of Hainan Island JOURNAL=Frontiers in Ecology and Evolution VOLUME=12 YEAR=2025 URL=https://www.frontiersin.org/journals/ecology-and-evolution/articles/10.3389/fevo.2024.1483133 DOI=10.3389/fevo.2024.1483133 ISSN=2296-701X