Species records at present after thinning procedure

To address spatial autocorrelation and sampling bias, a spatial thinning procedure was applied using the “thin” function from the “spThin” R package. This procedure removed occurrences of the same species within a 10 km radius

为解决空间自相关（spatial autocorrelation）与抽样偏差（sampling bias）问题，我们采用"spThin"R包中的"thin"函数实施空间稀疏化流程（spatial thinning procedure）。该流程会移除10千米半径范围内同一物种的出现记录。