Discussion
Our study compared for the first time the model complexity and predicted suitable habitat of the optimal models selected by ORTEST and AUCDIFF approaches using two omission rates derived from both restrictive and less restrictive thresholds. We also used the less restrictive threshold to derive predicted suitable habitats and to assess for their ecological plausibility. Further, we used two taxonomic groups of freshwater species with different life history traits. The focus of this study, Bhutan, is also interesting as freshwater species distributions are poorly documented (National Biodiversity Centre, 2014).