Global dynamic maps of terrestrial Area-of-Habitat (AOH)

This dataset provides spatially explicit biodiversity data at an approximate 10 km resolution for four terrestrial vertebrate groups: mammals, amphibians, reptiles, and birds. The dataset includes five time slices—1990, 2020, 2030, 2050, and 2100—allowing the assessment of biodiversity patterns and their long-term changes from past to future. It contains four ecoregion-level indicators: species richness, threatened species richness, species endemism, and AOH density. These indicators were derived from species-level environmental suitability mapping that integrates both climatic conditions and habitat constraints, thereby providing a consistent basis for representing species distributions across time. By combining taxonomic breadth, long-term temporal coverage, and standardized ecoregion-level metrics, the dataset supports analyses of global biodiversity patterns, conservation priorities, and projected future changes under environmental change.本数据集提供分辨率约10公里的空间显式生物多样性数据，涵盖哺乳类、两栖类、爬行类与鸟类四大陆生脊椎动物类群。数据集包含五个时间切片——1990年、2020年、2030年、2050年及2100年，可用于评估生物多样性格局及其从过去到未来的长期变化。数据集包含四项生态区尺度指标：物种丰富度、受威胁物种丰富度、物种特有性以及适宜生境密度（AOH density）。上述指标源自整合了气候条件与生境限制因子的物种级环境适宜性制图，为跨时间尺度的物种分布表征提供了统一基准。本数据集兼具类群覆盖广度、长期时间序列覆盖度与标准化的生态区尺度指标，可支撑全球生物多样性格局、保护优先级分析以及环境变化情景下的未来变化预测研究。