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Central tendency and range (shaded region) of variables tested for associations with black fly abundance throughout 2020 across the transects sampled. (a) Monthly maximum and minimum temperature (°C) at each transect. (b) Monthly NDVI across all transects. (c) Monthly flow rate (ft3/s) along the Rio Grande from three gauges along the Rio Grande. (d) Total monthly precipitation (mm) at each transect.
