Table 4.

Mean tick density by year x season x region

Year	Season	Region	Mean ± S.E.
2016	Spring	Eastern region	5.59 ± 2.52
		Eastern expansion zone	2.09 ± 4.17
		Western region	23.67 ± 7.80
		Western expansion zone	4.65 ± 3.06
	Autumn	Eastern region	15.80 ± 4.17
		Eastern expansion zone	1.50 ± 11.03
		Western region	4.05 ± .5.52
		Western expansion zone	1.72 ± 3.06
2017	Spring	Eastern region	12.88 ± 2.41
		Eastern expansion zone	1.16 ± 3.19
		Western region	5.03 ± 5.52
		Western expansion zone	2.01 ± 2.68
	Autumn	Eastern region	5.08 ± 2.76
		Eastern expansion zone	0.93 ± 3.68
		Western region	5.38 ± 7.80
		Western expansion zone	3.74 ± 3.06
2018	Spring	Eastern region	13.29 ± 2.30
		Eastern expansion zone	3.92 ± 2.60
		Western region	8.34 ± 4.50
		Western expansion zone	2.98 ± 2.35
	Autumn	Eastern region	19.85 ± 3.33
		Eastern expansion zone	0.25 ± 4.50
		Western region	13.05 ± 4.93
		Western expansion zone	10.07 ± 2.68