Factors affecting the spatial distribution of Niangua Darters (Etheostoma nianguae) in the Osage River basin, Missouri, USA, 2010-2011

These data include information from 74 sampled stream reaches in the Osage Ecological Drainage Unit (EDU) within the Osage River Basin, Missouri. Streams with a Strahler order from three to six were systematically sampled to assess Niangua darter resource selection across three spatial scales macrohabitat, reach, and watershed scale. Variables used to explain Niangua darter presence at the macrohabitat scale were collected onsite while reach and watershed variables were summarized from macrohabitats or collected from available landscape datasets.