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Table 1 Environmental variables associated with absolute abundance of Simulium species collected in 2020

From: Community composition of black flies during and after the 2020 vesicular stomatitis virus outbreak in Southern New Mexico, USA

Season

Total N in traps

Total black fly abundance

S. robynae abundance

S. meridionale abundance

S. mediovittatum abundance

Spring (March–May)

7571

(+) Precipitation (2 month lagged)

None significant

(+) Precipitation (2 month lagged)

None sampled

Summer (June–August)

5080

(+) Maximum temperature

(−) Precipitation (2 month lagged)

None significant

None significant

Fall (September–November)

912

(−) NDVI

(+) Precipitation (1 year lagged)

None sampled

Not analyzed because of small sample size

Not analyzed because of small sample size

  1. Factors analyzed: NDVI (bi-monthly mean), average flow rate (feet3/ s), maximum temperature (°C; daily), precipitation of month sampled, 2-month lagged precipitation and 1-year lagged precipitation (mm). Blue represents a positive association, and orange represents a negative association. Associations with total black fly abundance were previously reported by Young et al. [18]