I am currently conducting ecological niche modeling (ENM) to predict the distribution of Coccinellidae (ladybugs) during the Last Interglacial (LIG) and Last Glacial Maximum (LGM). However, I encountered a methodological challenge: some occurrence records are located on the Tibetan Plateau. Due to the zonal climate characteristics of this region, certain environmental variables (e.g., temperature, precipitation) exhibit similar values at high elevations compared to low-altitude zones. Without incorporating topographic elevation constraints, this may lead to overestimation or underestimation of their distribution ranges during these glacial-interglacial periods. Unfortunately, I lack paleotopographic data for these two geological periods. Could experts suggest alternative approaches to address this limitation?