Table 1:
Density of questing nymphal ticks from May 15 to July 15 at each of 11 sampling sites across the three years of the study. Three sites were added in 2017, so do not have values for 2016. Ecoregion is either CV for Champlain Valley (i.e., Eastern Great Lakes Lowlands) or GM for Green Mountains (Northeastern Highlands), as determined from (EPA 2018). Mean annual temperature and total precipitation are 30-year normal, 1981–2010 (PRISM Climate Group 2019).
| Site name | Ecore gion | Elev. (m) | Mean temp. (C) | Mean annual precipitation (mm) | 2016 nymphs per 200 m2 (± SE) | 2017 nymphs per 200 m2 (± SE) | 2018 nymphs per 200 m2 (± SE) |
|---|---|---|---|---|---|---|---|
| Major | CV | 126 | 7.7 | 968 | NA | 15.75 (± 3.22) | 1.33 (± 0.86) |
| Lourie | CV | 134 | 7.6 | 938 | NA | 22.38 (± 3.60) | 4.00 (± 2.20) |
| Foote | CV | 152 | 7.5 | 977 | 12.21 (± 4.12) | 26.25 (± 7.67) | 6.27 (± 2.34) |
| Chipman | CV | 210 | 7.2 | 966 | 4.38 (± 2.15) | 16.27 (± 4.93) | 3.27 (± 2.52) |
| Gorge | GM | 254 | 6.3 | 1095 | 3.63 (± 0.65) | 9.50 (± 1.46) | 0.75 (± 0.63) |
| BRF | GM | 382 | 6.2 | 1113 | 0.62 (± 0.44) | 1.13 (± 0.60) | 0.38 (± 0.53) |
| SPIN | GM | 405 | 5.7 | 1209 | 0.14 (± 0.27) | 1.38 (± 0.83) | 0.00 (± 0.00) |
| Frost | GM | 462 | 5.1 | 1216 | 0.21 (± 0.25) | 0.58 (± 0.46) | 0.33 (± 0.37) |
| Gilmore | GM | 532 | 5 | 1236 | 1.13 (± 0.88) | 0.88 (± 0.59) | 0.00 (± 0.00) |
| Crystal | GM | 569 | 4.8 | 1326 | 0.36 (± 0.43) | 0.27 (± 0.37) | 0.14 (± 0.22) |
| Snowbowl | GM | 693 | 4.3 | 1408 | NA | 0.00 (± 0.00) | 0.13 (± 0.25) |