Data and code from: Estimating the impacts of future extreme heat on dryland threatened mammals: An Australian case study

This dataset was compiled to assess exposure of 36 threatened Australian dryland mammals to future extreme heat. The study compares baseline (1981–2010) and projected (2041–2070) thermal envelopes defined using BIO5 (maximum temperature of the warmest month) from CHELSA v2.1 (Karger et al., 2017, 2021), evaluates the thermal suitability of translocation sites under future climate scenarios, and compiles a systematic review of thermal ecology literature for all focal species. Species distributions were compiled from occurrence records, Marsh et al. (2022), and expert consultation; historical distributions were reconstructed to represent pre-European-colonisation ranges. Full details are provided in Appendices S1–S3 of the associated manuscript. Due to their large file size and public availability, raw CHELSA climate rasters are not included; all extracted and processed climate values used in analyses are provided instead. , 2.1 Framework for comparing current, historical, and future heat envelopes We calculated the baseline (1981–2010) heat envelopes for each species, defined as the range of maximum temperatures (BIO5: maximum temperature of the warmest month at 2-metres above ground) across both their historical and current geographic distributions. We then assessed future predictions to determine the proportion of each species’ current distribution projected to remain within either its current or historical heat envelope. Both historical and current distributions were included because many species have undergone > 90 % range contractions and the historical distribution may better reflect each species’ climatic tolerance. We defined thermal maxima as the upper limit of each of the current and historical heat envelopes. We compared future climate conditions at existing translocation sites to these current and historical thermal maxima to assess their potential suitability under projected climate scenari..., # Data and code from: Estimating the impacts of future extreme heat on dryland threatened mammals: An Australian case study Dataset DOI: [10.5061/dryad.8kprr4z3f](https://doi.org/10.5061/dryad.8kprr4z3f) ## Description of the data and file structure This dataset was compiled to assess exposure of 36 threatened Australian dryland mammals to future extreme heat. The study compares baseline (1981–2010) and projected (2041–2070) thermal envelopes defined using BIO5 (maximum temperature of the warmest month) from CHELSA v2.1 (Karger et al., 2017, 2021), evaluates the thermal suitability of translocation sites under future climate scenarios, and compiles a systematic review of thermal ecology literature for all focal species. Species distributions were compiled from occurrence records, Marsh et al. (2022), and expert consultation; historical distributions were reconstructed to represent pre-European-colonisation ranges. Full details are provided in Appendices S1–S3 of the associated manusc..., ,本数据集旨在评估36种受威胁的澳大利亚旱地哺乳动物未来面临极端高温的暴露风险。本研究对比了基于CHELSA v2.1（Karger等，2017、2021）的BIO5（最热月最高温）定义的基准期（1981–2010年）与预测期（2041–2070年）热生态位包络（thermal envelopes），评估了未来气候情景下易地保护选址的热适宜性，并针对所有研究焦点物种汇编了热生态学相关文献的系统综述。物种分布数据源自出现记录、Marsh等（2022）的研究以及专家咨询；历史分布经重构以还原欧洲殖民前的物种分布范围。完整细节见相关论文的附录S1至S3。由于原始CHELSA气候栅格文件体积庞大且可公开获取，本数据集未包含该原始数据，仅提供了分析中使用的经提取与处理后的气候数据。 2.1 对比当前、历史与未来热生态位包络的框架 我们为每个物种计算了基准期（1981–2010年）的热生态位包络，其定义为物种历史与当前地理分布范围内的最高温度（BIO5：地面2米处的最热月最高温）区间。随后基于未来气候预测，评估每个物种当前分布区中仍处于其当前或历史热生态位包络内的比例。同时纳入历史与当前分布区的原因在于，多数物种的分布范围已缩减超过90%，历史分布区或能更准确反映物种的气候耐受范围。本研究将热上限定义为当前与历史热生态位包络的上限值。我们将现有易地保护选址的未来气候条件与上述当前及历史热上限进行对比，以评估其在预测气候情景下的潜在适宜性…… # 数据与代码来源：《评估未来极端高温对旱地受威胁哺乳动物的影响：澳大利亚案例研究》 数据集DOI：[10.5061/dryad.8kprr4z3f](https://doi.org/10.5061/dryad.8kprr4z3f) ## 数据与文件结构说明 本数据集旨在评估36种受威胁的澳大利亚旱地哺乳动物未来面临极端高温的暴露风险。本研究对比了基于CHELSA v2.1（Karger等，2017、2021）的BIO5（最热月最高温）定义的基准期（1981–2010年）与预测期（2041–2070年）热生态位包络，评估了未来气候情景下易地保护选址的热适宜性，并针对所有研究焦点物种汇编了热生态学相关文献的系统综述。物种分布数据源自出现记录、Marsh等（2022）的研究以及专家咨询；历史分布经重构以还原欧洲殖民前的物种分布范围。完整细节见相关论文的附录S1至S3……