Data and code for: Human density modulates spatial associations among tropical forest terrestrial mammal species

The spatial aggregation of species pairs often increases with the ecological similarity of the species involved. However, the way in which environmental conditions and anthropogenic activity affect the relationship between spatial aggregation and ecological similarity remains unknown despite the potential for spatial associations to affect species interactions, ecosystem function, and extinction risk. Given that human disturbance has been shown to both increase and decrease spatial associations among species pairs, ecological similarity may have a role in mediating these patterns. Here, we test the influences of habitat diversity, primary productivity, human population density, and species’ ecological similarity based on functional traits (i.e., functional trait similarity) on spatial associations among tropical forest mammals. Large mammals are highly sensitive to anthropogenic change and therefore susceptible to changes in interspecific spatial associations. Using two-species occupanc..., ,物种对的空间聚集（spatial aggregation）程度通常随所涉物种的生态相似性（ecological similarity）升高而增强。然而，尽管空间关联（spatial associations）可影响物种间相互作用、生态系统功能（ecosystem function）与灭绝风险（extinction risk），但环境条件和人类活动（anthropogenic activity）如何调控空间聚集与生态相似性间的关联，目前仍不明晰。已有研究表明，人类干扰（human disturbance）既可增强也可减弱物种对之间的空间关联，因此生态相似性或在介导此类格局中发挥作用。本研究以热带森林哺乳动物的种间空间关联为研究对象，检验了生境多样性（habitat diversity）、初级生产力（primary productivity）、人口密度（human population density）以及基于功能性状（functional traits）的物种生态相似性（即功能性状相似性）对其的影响。大型哺乳动物对人类活动引发的变化高度敏感，因此易受种间空间关联（interspecific spatial associations）改变的影响。本研究采用两物种占用（two-species occupanc..., ,）