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Table 2 Distance of the borders of “D. reticulatus-positive” sites within the Western population in successive seasons: between sites at the most eastward locations

From: Monitoring the expansion of Dermacentor reticulatus and occurrence of canine babesiosis in Poland in 2016–2018

Season Latitude Longitude Season Latitude Longitude Distance (km)
Spring 2016    Autumn 2016    
Skwierzyna 52.61080 15.52440 Zamyślin 52.64594 15.78013 17.8
Kuźnica Zbącka 52.23180 16.10573 Grodzisk Wielkopolski 52.23941 16.34532 16.4
Obra 52.06911 16.04106 Bonikowo 52.11618 16.63196 40.8
       Mean ± S.E.
25.00 ± 10.53
Autumn 2016    Spring 2017    
Baczyna 52.74998 15.13779 Janczewo 52.76611 15.34509 14
Zamyślin 52.64595 15.78013 Sobota 52.66563 16.75029 64.6
Bonikowo 52.11619 16.63196 Śrem 52.08752 16.98591 24.4
       Mean ± S.E.
34.33 ± 20.18
Spring 2017    Autumn 2017    
Janczewo 52.76611 15.34509 Gorzów Wielkopolski 52.76383 15.23103 −7.7
Chojna 53.12995 14.42094 Banie 53.097498 14.65297 −16.00
Kościan 52.10445 16.63240 Śrem 52.08753 16.98591 −24.4
       Mean ± S.E.
−16.03 ± 5.58
Autumn 2017    Spring 2018    
Chojna 53.12995 14.42094 Banie 53.09980 14.66880 16.9
Rów 52.97834 14.72285 Tarnowo 52.99290 14.82220 6.85
Niezgoda 51.51415 17.04281 Wierzchowice Wielkie 51.55975 16.60470 −30.8
       Mean ± S.E.
−2.35 ± 18.97
Spring 2018    Autumn 2018    
Biedaszków Mały 51.39967 17.09867 Czeszów 51.37780 17.24220 10.3
Psary 51.19400 17.03333 Poligon Cienin 51.20000 17.08910 3.95
Trzciel 52.371869 15.86673 Chmielinko 52.40400 16.16590 20.6
       Mean ± S.E.
11.62 ± 5.99
       TOTAL Mean ± S.E.
10.51 ± 15.76