COMBINE: a Coalesced Mammal Database of Intrinsic and extrinsic traits

COMBINE is a taxonomically integrated database of mammal traits obtained from published sources, in which we maximized trait number and coverage without compromising data quality. COMBINE contains information on 54 traits for 6,234 extant and recently extinct mammal species, including information on morphology, reproduction, diet, biogeography, life-habit, phenology, behavior, home range and density. Additionally, we calculated other relevant traits such as habitat and altitudinal breadths for all species and dispersal for terrestrial non-volant species. All data are compatible with the taxonomies of the IUCN Red List v. 2020-2 and PHYLACINE v. 1.2. Missing data were adequately flagged and imputed for non-biogeographical traits with 20% or more data available. We obtained full data sets for 21 traits such as female maturity, litter size, maximum longevity, trophic level and dispersal, providing imputation performance statistics for all. This data set will be especially useful for those interested in including species’ traits in large-scale ecological and conservation analyses.

COMBINE是一款分类学整合型哺乳动物性状数据库(taxonomically integrated database of mammal traits)，其数据均源自已发表的研究成果，本数据库在不降低数据质量的前提下，最大化了性状收录数量与物种覆盖范围。COMBINE收录了6234种现存及近期灭绝的哺乳动物的54项性状信息，涵盖形态学、繁殖特性、食性、生物地理学、生活习性、物候、行为、家域与种群密度等多个维度。此外，我们还为所有物种计算了栖息地广度与海拔广度等衍生性状，并为陆生非飞行类哺乳动物计算了扩散相关性状。所有数据均兼容国际自然保护联盟红色名录(IUCN Red List) v.2020-2与PHYLACINE v.1.2的分类体系。对于数据可用占比不低于20%的非生物地理性状，缺失数据已被妥善标记并完成插补处理。我们针对雌性成熟年龄、胎仔数、最大寿命、营养级与扩散能力等21项完整收录的性状，提供了所有插补流程的性能统计数据。本数据集对于希望将物种性状纳入大规模生态学与保护分析的研究人员而言，具备极高的应用价值。