Table 1 The average testing areas under the curve (AUC) of the BRT models at the county level and model-predicted numbers, areas and population sizes of affected counties for the 19 most prevalent tick species in China.

From: Mapping ticks and tick-borne pathogens in China

Tick species

Average AUC (2.5‒97.5% percentiles)

Predicted/observed (relative difference %)

No. of counties

Area (10,000 km2)

Population size (million)

Ixodes persulcatus

0.892 (0.855–0.929)

380/135 (181.5)

173.2/87.9 (97.0)

149.1/47.5 (213.9)

I. sinensisac

0.924 (0.894–0.953)

630/113 (457.5)

81.2/14.1 (475.9)

363.3/77.2 (370.6)

I. granulatus

0.943 (0.920–0.965)

373/103 (262.1)

62.5/18.6 (236.0)

201.4/51.5 (291.1)

I. crenulatusb

0.918 (0.885–0.951)

205/76 (169.7)

322.3/113.0 (185.2)

33.8/16.4 (106.1)

I. ovatus

0.828 (0.778–0.878)

335/57 (487.7)

145.1/28.2 (414.5)

110.5/20.9 (428.7)

Haemaphysalis longicornisac

0.900 (0.879–0.920)

1140/303 (276.2)

172.8/70.9 (143.7)

588.0/138.3 (325.2)

Ha. concinna

0.875 (0.827–0.922)

165/72 (129.2)

86.2/55.3 (55.9)

51.1/24.9 (105.2)

Ha. japonica

0.888 (0.835–0.941)

95/52 (82.7)

36.4/21.4 (70.1)

27.7/17.8 (55.6)

Ha. hystricis

0.893 (0.854–0.933)

205/43 (376.7)

43.2/12.5 (245.6)

86.2/19.6 (339.8)

Rhipicephalus sanguineusc

0.833 (0.800–0.866)

470/221 (112.7)

163.1/94.0 (73.5)

236.4/96.9 (144.0)

R. microplusac

0.871 (0.844–0.898)

678/188 (260.6)

138.3/54.1 (155.6)

349.6/106.8 (227.3)

R. haemaphysaloidesc

0.901 (0.862–0.940)

471/76 (519.7)

76.3/14.4 (429.9)

232.9/35.5 (556.1)

Dermacentor nuttalliab

0.966 (0.956–0.975)

557/382 (45.8)

378.6/274.1 (38.1)

153.2/109.3 (40.2)

D. silvaruma

0.926 (0.907–0.944)

492/274 (79.6)

155.6/129.7 (20.0)

168.1/96.2 (74.7)

D. daghestanicusb

0.930 (0.882–0.977)

112/62 (80.6)

196.5/95.9 (104.9)

22.0/13.6 (61.8)

D. marginatus

0.960 (0.942–0.978)

81/62 (30.6)

54.3/47.7 (13.8)

19.0/13.9 (36.7)

Hyalomma scupense

0.912 (0.893–0.932)

410/234 (75.2)

168.6/137.3 (22.8)

160.7/81.9 (96.2)

Hy. asiaticumb

0.948 (0.926–0.969)

186/135 (37.8)

299.7/212.2 (41.2)

39.2/31.4 (24.8)

Argas persicusb

0.874 (0.836–0.902)

225/68 (230.9)

208.7/45.7 (356.7)

104.2/42.3 (146.3)

  1. The predicted numbers are compared with the actual observations from field surveys and the relative differences (%) are given in parentheses.
  2. aTop 5 tick species affecting largest numbers of counties.
  3. bTop 5 tick species affecting largest areas.
  4. cTop 5 tick species affecting largest population sizes.
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