Figure 2.
Total number of black flies collected per transect within a given sampling week from March 2020 to December 2020. Time periods when sampling did not occur are designated by “NS” brackets. North to south geographic distribution of transects along the Rio Grande are indicated as blue to red coloring, respectively. Each site, excepting RG_038, was sampled on five individual dates between April of 2020 to November of 2020 for a total of 25 trap nights across all sites. Site RG_038 was sampled approximately every two weeks from March of 2020 to December of 2020 for a total of 16 trap nights.