Chan Carrol M H, Owers Christopher J, Fuller Sascha, Hayward Matt W, Moverley David, Griffin Andrea S
Conservation Science Research Group, School of Environmental and Life Sciences, University of Newcastle, Callaghan, New South Wales, Australia.
Earth Sciences, School of Environmental and Life Sciences, University of Newcastle, Callaghan, New South Wales, Australia.
Conserv Biol. 2025 Feb;39(1):e14344. doi: 10.1111/cobi.14344. Epub 2024 Aug 21.
The Pacific Islands region is home to several of the world's biodiversity hotspots, yet its unique flora and fauna are under threat because of biological invasions. These invasions are likely to proliferate as human activity increases and large-scale natural disturbances unfold, exacerbated by climate change. Remote sensing data and techniques provide a feasible method to map and monitor invasive plant species and inform invasive plant species management across the Pacific Islands region. We used case studies taken from literature retrieved from Google Scholar, 3 regional agencies' digital libraries, and 2 online catalogs on invasive plant species management to examine the uptake and challenges faced in the implementation of remote sensing technology in the Pacific region. We synthesized remote sensing techniques and outlined their potential to detect and map invasive plant species based on species phenology, structural characteristics, and image texture algorithms. The application of remote sensing methods to detect invasive plant species was heavily reliant on species ecology, extent of invasion, and available geospatial and remotely sensed image data. However, current mechanisms that support invasive plant species management, including policy frameworks and geospatial data infrastructure, operated in isolation, leading to duplication of efforts and creating unsustainable solutions for the region. For remote sensing to support invasive plant species management in the region, key stakeholders including conservation managers, researchers, and practitioners; funding agencies; and regional organizations must invest, where possible, in the broader geospatial and environmental sector, integrate, and streamline policies and improve capacity and technology access.
太平洋岛屿地区是世界上几个生物多样性热点地区的所在地，然而，由于生物入侵，其独特的动植物群正受到威胁。随着人类活动的增加和大规模自然干扰的出现，这些入侵可能会激增，而气候变化会使其进一步加剧。遥感数据和技术提供了一种可行的方法来绘制和监测入侵植物物种，并为整个太平洋岛屿地区的入侵植物物种管理提供信息。我们利用从谷歌学术、3个区域机构的数字图书馆以及2个关于入侵植物物种管理的在线目录中检索到的文献中的案例研究，来研究太平洋地区在实施遥感技术过程中所采用的方法以及面临的挑战。我们综合了遥感技术，并概述了它们基于物种物候、结构特征和图像纹理算法来检测和绘制入侵植物物种的潜力。利用遥感方法检测入侵植物物种在很大程度上依赖于物种生态学、入侵范围以及可用的地理空间和遥感图像数据。然而，目前支持入侵植物物种管理的机制，包括政策框架和地理空间数据基础设施，都是各自独立运行的，导致了工作的重复，并为该地区创造了不可持续的解决方案。为了使遥感技术支持该地区的入侵植物物种管理，包括保护管理人员、研究人员和从业人员在内的主要利益相关者；资助机构；以及区域组织必须在可能的情况下，投资于更广泛的地理空间和环境领域，整合并简化政策，提高能力并改善技术获取途径。
