Table 1 Parasite species composition of the abomasal parasite communities in the three host species. Species prevalences and abundances are based on the number of male specimens numbers only

Teladorsagia circumcincta complex

48.3 (42.2–54.3)

23.3 ± 3.95

20.6 (15.7–25.5)

5.6 ± 2.49

94.8 (92.1–97.5)

463.8 ± 60.59

Marshallagia marshalli complex

0.8 (0.0–1.9)

0.1 ± 0.00

94.8 (92.1–97.5)

265.4 ± 38.32

Spiculopteragia spiculoptera complex

18.4 (13.7–23.1)

4.1 ± 0.96

93.6 (90.7–96.6)

211.0 ± 21.14

Ostertagia leptospicularis complex

11.5 (7.6–15.4)

2.3 ± 0.89

78.6 (73.6–83.6)

67.5 ± 9.10

Ostertagia ostertagi complex

0.8 (0.0–1.8)

0.2 ± 1.31

0.8 (0.0–1.9)

0.2 ± 0.00

29.3 (23.7–34.8)

11.5 ± 2.30

Haemonchus contortus

66.3 (60.5–72.0)

37.0 ± 4.20

17.5 (12.9–22.1)

10.9 ± 8.39

1.7 (0.1–3.3)

1.0 ± 0.00

Trichostrongylus axei

25.3 (20.0–30.6)

17.8 ± 12.46

26.9 (21.6–32.3)

26.4 ± 18.00

36.2 (30.4–42.0)

29.8 ± 17.55

Trichostrongylus capricola

1.5 (0.1–3.0)

0.1 ± 0.00

10.3 (6.6–14.0)

2.1 ± 2.09

Trichostrongylus vitrinus

7.7 (4.4–10.9)

1.3 ± 0.75

3.2 (1.0–5.3)

0.5 ± 0.89

22.4 (17.3–27.4)

11.3 ± 5.59

Trichostrongylus colubriformis

3.1 (1.0–5.1)

0.4 ± 0.32

0.8 (0.0–1.9)

0.1 ± 0.00

Trichostrongylus longispicularis

0.4 (0.0–1.1)

0.1 ± 0.00

1.6 (0.1–3.1)

0.5 ± 2.52

Infracommunities

Mean richness

Mean total nematode count

100 ± 0.00

214.2 ± 23.00

100 ± 0.00

832.8 ± 86.89

100 ± 0.00

1875.3 ± 164.44

Mean evenness (Brillouin’s index)

Component community richness

Infracommunity crowding