<p>Summary of covariates used in fish and mussel models. We report variable category (geographic, climate, land use, connectivity, and host fishes), variable, units, spatial scale, definition, which taxa the covariate was used for, and the source of the data. Catchment = the portion of land that drains directly to a National Hydrography Dataset stream segment, excluding upstream contributions [51]; Watershed = all upstream catchments that flow to the NHD stream segment [51]; Stream reach = Contiguous section of stream between upstream and downstream tributaries [51]; NLCD = national land cover database; HUC12 = 12-digit hydrologic unit code; NHDv2 = National Hydrography Dataset version 2. Note that</p>

Summary of covariates used in fish and mussel models. We report variable category (geographic, climate, land use, connectivity, and host fishes), variable, units, spatial scale, definition, which taxa the covariate was used for, and the source of the data. Catchment = the portion of land that drains directly to a National Hydrography Dataset stream segment, excluding upstream contributions [51]; Watershed = all upstream catchments that flow to the NHD stream segment [51]; Stream reach = Contiguous section of stream between upstream and downstream tributaries [51]; NLCD = national land cover database; HUC12 = 12-digit hydrologic unit code; NHDv2 = National Hydrography Dataset version 2. Note that