Assessing impact risk to tropical marine ecosystems from human activities with a Southeast Asian example

作者：Fiona Culhane, Melanie C. Austen, Matthew Ashley, Jonson Javier, Sui Hyang Kuit, Nguyễn Phúc Hưng, Hau Duc Tran, Radisti A. Praptiwi, Sainal Sainal, Eva Vivian Justine, Prawesti Wulandari, Stefanie Broszeit, Jean Beth Jontila, Sofia Johari, Lota Creencia, Amy Yee‐Hui Then, Lea Janine Gajardo, Carya Maharja, Hong Ching Goh, Wan Mohd Syazwan, Yang Amri Affendi, Lê Ngọc Thảo, Jito Sugardjito, Tom Mullier, Olivia Langmead · 发表于：Journal of Applied Ecology · 年份：2024 · DOI：10.1111/1365-2664.14812 · 被引用次数：10 · 研究领域：Coral and Marine Ecosystems Studies、Coastal and Marine Management、Ocean Acidification Effects and Responses

Abstract Society relies on intact marine ecosystems for ecosystem services such as nutrition, livelihoods, health and well‐being. Yet, to obtain these benefits, we carry out activities, introducing pressures to ecosystems, damaging and degrading habitats and reducing their capacity to optimally provide ecosystem services. Biodiversity and ecosystem services are consequently being lost globally but impact chains from these activities are poorly understood, especially in tropical marine ecosystems. We identified for the first time impact chains linking activities with pressures they introduce in five tropical coastal and marine habitats, specifically through application in four Southeast Asian case study sites. Using expert elicitation based on existing evidence, we weighted each impact chain according to pressure extent, frequency and persistence, and habitat resistance and resilience. Assigning each impact chain an impact risk score allowed identification of activities and pressures introducing most risk, and habitats most under threat. Of 26 activities we considered, we found fishing activities, specifically trawling, gill nets and seine nets introduce most risk, along with tourism and recreation. Litter and pollution were among the greatest pressures on habitats, with coral reefs being most vulnerable overall. Destructive fishing practices were associated with physical pressures like abrasion, smothering and siltation and total habitat loss, while tourism activities were as...