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Unveiling the Invasion: Advancing Ecological Mapping of Heterotheca Subaxillaris Through Integrated Remote Sensing Techniques With Drones and Satellites

Invasive plant species (IPS) pose a significant threat to natural ecosystems, causing substantial global biodiversity loss. Despite the fact that only a few species invade Israel's coastal dunes, their impact on landscape and ecosystems is notable. The invasive plantHeterotheca subaxillaris, introduced a few decades ago, has aggressively spread across these dunes, becoming a major invasive species along the Israeli coast. To provide essential spatial information for ecologists and land managers, this study developed a methodology to identify and map H. subaxillaris at various scales by integrating unmanned aerial vehicle (UAV) and satellite imagery. During the flowering period, drone images were employed to create multi-resolution ground references using the random forest classification method, achieving 97.4% accuracy forH. subaxillarisidentification. These UAV-based references …

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