Assessing the Spatiotemporal Dynamics of Regional Ecosystem Health in Aydın Province, Türkiye

This study analyzes the spatial and temporal dynamics of Regional Ecosystem Health (REH) in the province of Aydın, located in western Türkiye, using the Vigor–Organization–Resilience (VOR) framework. Ecosystem conditions between 1995 and 2020 were assessed by integrating remote sensing-based vitality indicators, landscape metrics, and habitat quality modeling. Vigor (V) increased across most land use/land cover (LULC) types, whereas Resilience (R) remained generally stable but showed slight declines in natural and semi-natural areas affected by intensive human activities and climatic stressors. This divergence mainly reflects the combined effects of agricultural intensification and the expansion of urban green areas, both of which enhance vegetation vitality and productivity (V), while ongoing habitat fragmentation and land use pressure in natural and semi-natural landscapes reduce ecological resilience (R). Conversely, the weakening of the Organization (O) component in coastal and peri-urban areas is associated with increased fragmentation and low connectivity. This situation clearly suggests the pressure exerted on ecological integrity by tourism infrastructure, second home developments, and intensive agricultural activities. The study’s findings confirm, in line with the literature on the Mediterranean region, that topographic diversity, land use intensity, and socio-economic processes are key factors determining spatial differences in ecosystem health. Furthermore, it was observed that the low REH values concentrated in coastal areas in 1995 had shifted to hotspots in higher elevations by 2020; this spatial shift suggests that the continuity of natural cover in mountainous areas enhances ecological conditions. Consequently, this study, with its VOR-based integrated approach, provides an applicable, replicable, and policy-informative framework for the long-term monitoring of ecosystem health and sustainable land use planning in climate-sensitive and rapidly changing Mediterranean landscapes.