Girdia agilis, Künstler, 1882

Lyu, Zhangxia, Cheng, Jiaoni, Shao, Jingru, Ye, Qingqing, Bai, Huixian & Wen, Jianfan, 2020, An investigation of the prevalence of Giardia agilis in anuran amphibians from fourteen areas in China, International Journal for Parasitology: Parasites and Wildlife 12, pp. 46-52 : 49

3.3. Prevalence of G. agilis in anuran amphibians from di ff erent areas

The 463 frog samples were collected from 14 areas of five provinces in China ( Fig. 2 ). For the information of these sampling areas, please see Supplementary Data Table S1. The prevalence of G. agilis in the 25 sampling frog species from these different areas is summarized, please see Supplementary Data Table S2. All samples from the same area were put together as calculating the prevalence in the area. We found that the prevalence among the positive frog species from areas with higher altitude (equal to or over 870m) showed no significant difference from each other, and the prevalence in the same positive frog species from these higher altitude areas also showed no significant difference ( Table 5). On the contrary, the frog samples from the areas with lower altitude (lower than 870m) were all negative. Interestingly, all the positive samples came from these sampling places where the altitudes are more than 870m. For example, Rana catesbeiana is positive in Dali (1505m) and negative in Shanghai (5m), and Amolops mantzorum is positive in Deyang (870m) and negative in Chengdu (730m). And the total prevalence of areas in different altitude were significantly different: the total prevalence of areas with higher altitude (Higher than 870m, 46.53%, 95% CI 41.67–51.44%) were significantly higher than the areas with lower altitude (0.00%, 95% CI 0.00–8.04%).

Figures

Fig. 2. Distribution of sampling positions All samples were collected from these 14 places of 5 provinces in China. The sizes of circles represent the sample sizes.