DataS1_Database

We assessed the species-specific response of 14 arboreal and ground mammals to landscape-scale forest loss and fragmentation measured across different scales in the Lacandon rainforest, Mexico. Most species (6 of 14 species, 43%) were weakly related to forest loss, or positively associated with it (7 of 14, 50%), likely because in this young agricultural frontier some individuals can crowd in the remaining forest patches. Only the Geoffroy’s spider monkey was negatively impacted by forest loss. We did not find evidence of extinction thresholds (nonlinear responses to forest loss) in any species. Only in four species fragmentation per se provided a slightly better fit to the data, but its effect was non-significant. Our multiscale analysis revealed that the scale of effect of forest loss and fragmentation was independent of body mass and habitat use (arboreal vs. ground).本研究针对墨西哥拉坎顿雨林（Lacandon Rainforest）内14种树栖与陆生哺乳动物，评估其对多尺度下观测得到的景观尺度森林丧失与片段化的物种特异性响应。14个物种中，6种（占比43%）与森林丧失呈弱相关，另有7种（占比50%）与之呈正相关，这可能是因为在这片新兴农业垦殖区中，部分个体可聚集于残存的森林斑块内。仅杰弗里蜘蛛猴（Geoffroy’s Spider Monkey）受森林丧失产生负面影响。本研究未在任何物种中发现灭绝阈值（即对森林丧失的非线性响应）的相关证据。仅在4个物种中，片段化本身（fragmentation per se）对观测数据的拟合度略佳，但该效应未达到统计学显著性水平。本研究的多尺度分析结果显示，森林丧失与片段化的效应尺度，与物种的体重及栖息模式（树栖 vs. 陆生）无关。