Biotic velocity identifies potential climate refugia beyond climate velocity estimates

We developed a biotic velocity–based framework to identify three functionally distinct types of climate refugia with significant conservation value at the regional scale: (1) in-situ refugia, where species assemblage can persist locally without spatial displacement (i.e., areas with mean forward or backward biotic velocity equal to 0), (2) stepping-stone refugia, where species can track shifting climates with relatively low forward biotic velocity, and (3) ex-situ refugia, which are areas that can be readily colonized by species from other regions due to low backward biotic velocity. This framework, which integrates species distribution models (SDMs), climate exposure metrics, and biotic velocity, was applied to four taxa (mammals, reptiles, birds, and amphibians) under two climate scenarios in the Middle and Lower Reaches of the Yangtze River (MLRYR), China. , , # Data from: Biotic velocity identifies potential climate refugia beyond climate velocity estimates Dataset DOI: [10.5061/dryad.v15dv427w](10.5061/dryad.v15dv427w) This dataset supports the research titled \"Biotic velocity identifies potential climate refugia beyond climate velocity estimates\". It contains the data and scripts required to reproduce key analytical steps, including species distribution models (SDMs), climate exposure assessments, and biotic velocity calculations. ## Description of the data and file structure #### 1.Data.zip * *Species List.xlsx*\ Provides detailed information for the 95 species included in this study, encompassing: scientific name, taxonomy, IUCN Red List threatened categories, number of points generated from the Area of Habitat (AOH - referring to species distribution ranges refined by incorporating land cover and elevation information), number of pre-processed occurrence records obtained from GBIF and iDigBio, number of occurrence points after fi...,我们构建了一套基于生物速度（biotic velocity）的分析框架，用于在区域尺度下识别三类功能迥异且具备重要保护价值的气候避难所：(1) 原地气候避难所（in-situ refugia），即物种群落无需进行空间迁移即可在当地持续存续的区域（即平均正向或反向生物速度等于0的区域）；(2) 跳板型气候避难所（stepping-stone refugia），即物种可通过相对较低的正向生物速度追踪气候变迁的区域；(3) 迁地气候避难所（ex-situ refugia），即因反向生物速度较低，可被其他区域的物种快速定殖的区域。 该框架整合了物种分布模型（species distribution models, SDMs）、气候暴露度指标与生物速度分析方法，在中国长江中下游地区（Middle and Lower Reaches of the Yangtze River, MLRYR）针对哺乳类、爬行类、鸟类与两栖类共4个类群，在两种气候情景下开展了实证应用。 # 数据来源：《生物速度识别超越气候速度估算的潜在气候避难所》 数据集DOI：10.5061/dryad.v15dv427w 本数据集支撑题为《生物速度识别超越气候速度估算的潜在气候避难所》的研究工作，包含复现核心分析步骤所需的全部数据与脚本代码，涵盖物种分布模型（SDMs）构建、气候暴露度评估以及生物速度计算等关键环节。 ## 数据与文件结构说明 #### 1. Data.zip * *Species List.xlsx* 收录了本研究涉及的95个物种的详细信息，具体包括：物种学名、分类学地位、IUCN红色名录受威胁等级、由栖息地面积（Area of Habitat, AOH——指结合土地覆被与高程信息优化得到的物种分布范围）生成的调查点位数量、从全球生物多样性信息机构（GBIF）与整合数字生物标本馆（iDigBio）获取的经预处理的物种出现记录数量、经筛选后的物种出现点位数量（原文此处存在截断）。