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A Century of Shifting Native Species-Accumulation Curves Reveals Long-Term Biodiversity Loss
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DOI：10.1111/ele.70429.png)
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Abstract
En 中文
The species-area relationship is a cornerstone of biodiversity theory and conservation. Yet, its temporal stability remains largely untested. Using nearly a century of disjunct vegetation-plot data from the Netherlands, we assess changes in the species-area relationship by constructing species-accumulation curves (SACs). We show that SACs have flattened significantly over time, indicating widespread biodiversity decline driven by habitat degradation and spatial homogenization, even within protected areas. Although grassland biodiversity has rebounded, forest biodiversity continues to decline, suggesting a greater extinction debt. These findings provide unprecedented evidence that biodiversity patterns captured by SACs shift over time. They also reveal a critical limitation of conservation strategies that rely solely on protected area expansion. As global biodiversity goals aim to halt biodiversity loss by 2030, our results emphasise the need for adaptive conservation strategies that integrate area-based protection with large-scale habitat restoration and improved ecosystem management.
Keywords:
biodiversity conservation
biodiversity patterns
biodiversity recovery
ecosystem restoration
forests
GBF targets
grasslands
long-term biodiversity change
Natura 2000
reverse biodiversity loss
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