Abstract Introduction Limestone quarries impact natural areas, and they are spreading in relation to human population growth. Little is known about the impact of limestone quarries and their restoration on biodiversity. Objectives This review aims to provide an overview of how biodiversity is assessed in limestone quarries, how it impacts biodiversity, and the restoration practices applied after mining. Methods We reviewed the published literature, including a total of 140 studies. Results Very few studies were designed to include more than one quarry or different control areas. Few studies examined the role of quarries as open habitats during mining operations, while the majority focused on habitat restoration after excavation. Restoration can occur through active or natural processes. Although active restoration, such as soil amendments and planting, was preferred, natural processes may better support communities that resemble those inhabiting natural calcareous grasslands. Even natural recovery often requires active management. Most studies focused on plants and arthropods, with very few addressing vertebrates. The impact of dust emission was mainly analyzed on plants and lichens. Conclusion There is a significant knowledge gap regarding biodiversity in active quarries and limited data on animal communities. Restoration efforts should integrate both active and passive strategies, with improved monitoring programs and broader taxonomic coverage.
Dessì et al. (Thu,) studied this question.
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