Table 2.

Reported densities of adult Ixodes persulcatus ticks during their peak occurrence in Europe and Siberia

Site	Lat	Long	Median	Mean	Range	na	kmb	Habitat	Years	Reference
Bothnian Bay, Finland	65°00	25°00	6.5	10.0	5.0–36.0	8	0.8	Decid. forest	2019	This study
Eastern Finland	62°40	31°00	–	0.02d	0.0–1.1	96	235	Forest	2008–2009	Bugmyrin et al. [49]
Norrbotten, Sweden	65°44	23°46	0.7d	12.7d	0.0–75.3	7	2.1	Mixed forest	2015–2016	Jaenson & Wilhemsson [32]
Karelia, Russia	62°07	33°96	0.6c,d,e	0.9c,d,e	0.2–2.5 c,d,e	2	–	Forest	1982–1990	Bugmyrin et al. [11]
Karelia, Russia	62°07	33°96	3.5 c,d,e	4.0c,d,e	2.1–9.1c,d,e	9	2.5–18.9	Various	1995–2017	Bugmyrin et al. [11]
Karelia, Russia	61°50	33°12	2.4d	2.0d	1.1–2.6	3	138.2	Forest	2006–2010	Bugmyrin et al. [50]
Karelia, Russia	61°26	33°16	1.2d	1.3d	0.2–4.4	14	109.1	Forest	2006–2010	Bugmyrin et al. [50]
Karelia, Russia	62°12	33°50	0.7d	0.7d	0.0–1.9	10	119.0	Forest	2006–2010	Bugmyrin et al. [50]
Western Siberia, Russia	56°20	84°57	2.7c	3.8c	1.7–11.8c	1	c.8	Forest	2006–2013	Romanenko and Leonovich [31]

^aThe number of sampled sites

^bLength of the dragged distance in km

^cValues are calculated from yearly data

^dPeak was not distinguished with seasonal cloth dragging

^eValues were approximated from Fig. 1 in Bugmyrin et al. [11]

Note: Mean and median number of adult Ixodes persulcatus ticks collected per 100 m² during their peak occurrence in Northern Europe and Siberia