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Table 2 Summary of field sampling

From: Path analyses of cross-sectional and longitudinal data suggest that variability in natural communities of blood-associated parasites is derived from host characteristics and not interspecific interactions

  Host characteristics Total rodents Infection status Samples for DNA extraction
Dataset Age Sex Reproductive status S intensity (prevalence) H intensity (prevalence) M Prevalence aB Prevalence Blood samples Flea samples Tick samples
Cross-sectional Juveniles Male NR 64 8 (98) 6 (50) 36 95 41 14 5
Female NR 67 7 (100) 9 (57) 24 100 37 16 10
Adults Male NR 84 13(97) 8 (42) 77 97 40 16 7
Female NR 59 16(100) 7 (54) 65 92 37 16 11
Female R 65 11 (97) 9 (17) 95 87 40 0 4
Longitudinal Juveniles Male NR 9 15(100) 5(55) 57 86 14 30 2
Female NR 13 10(100) 6(58) 33 88 18 32 3
Adults Male NR 28 15(100) 7(45) 87 75 16 32 5
Female NR 19 15(100) 5(50) 44 78 18 32 3
R 9 15(100) 7(28) 87 62 16 0 0
Total 417 b 125 (99) 69 e (46) 61 86 277 c 188 d 50 c
  1. Details on the trapped G. andersoni rodents, on the prevalence (percentage of infected/infested hosts) and intensity (mean abundance of ectoparasites per infested host) of their Mycoplasma (M), Bartonella (B), S. cleopatrae (S), and H. impeltatum (H) parasites, and on the samples included in the cross-sectional and the longitudinal datasets
  2. a99% of the hosts were infected by Bartonella; thus we exploited the variability in the intensities of positive PCR bands to distinguish between samples with low (<500 copies per 1 μl of DNA) and high (>500 copies per 1 μl of DNA) Bartonella sp. cell density. This distinction served for the prevalence calculation that in the case of Bartonella, corresponded to the percentage of highly infected hosts
  3. bWe had in total 339 G. andersoni captured in the first period, but 78 of them are relevant to both datasets
  4. cWe had in total only 236 blood samples, but 41 of them are relevant to both datasets
  5. dWe had in total 126 flea samples, but 62 of them are relevant to both datasets
  6. eWe had in total 42 tick samples, but 8 of them are relevant to both datasets