Directing conservation action for the Critically Endangered Philippine Eagle to mitigate mining impacts and maximize indigenous land management

作者：Luke J. Sutton, Jayson C. Ibañez, Dennis I. Salvador, Andrei Von Mariano Tirona, Guiller Opiso, Tristan Luap P. Senarillos, Kristian J Suetos, Rowell L. Taraya, Christopher J. W. McClure · 发表于：bioRxiv (Cold Spring Harbor Laboratory) · 年份：2025 · DOI：10.1101/2025.05.19.654818 · 被引用次数：2 · 研究领域：Ecology and biodiversity studies

Abstract As habitat destruction intensifies due to expanding human infrastructure, balancing biodiversity conservation with resource extraction has become a global challenge. Thus, quantifying the extent and location of proposed mining operations is key to mitigating the impacts on threatened species. This issue is particularly acute in the biodiversity hotspots of southeast Asia, where rapid economic growth needs to be balanced with sustainable conservation management of the remaining tropical forest. The Philippine Eagle ( Pithecophaga jefferyi ), a critically endangered tropical forest raptor endemic to the Philippines, faces increasing threats from mining activities that destroy and fragment its tropical forest habitat. Here, we integrate Species Distribution Modelling with gap and hotspot analysis to assess the spatial overlap between Philippine Eagle nest habitat and mining concessions across a protected area network on Mindanao, where the largest population remains. Using a landscape-scale SDM built with remote sensing covariates and eagle occurrence data, we identified high-suitability nest habitats and projected these into the Eastern Mindanao Biodiversity Corridor (EMBC). Hotspot analysis revealed that 41 % of the total mining concessions area contained high-suitability nest habitat, highlighting significant conservation risks. Additionally, 46 % of indigenous ancestral domains contain high-suitability nest habitat, emphasizing the importance of indigenous land mana...