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Table 3 Summary statistics of all glmmTMB models for B. truncatus and B. forskalii abundance, reporting χ2 df and P-values, all negative binomial apart from binomial for prevalence models

From: Freshwater snails of biomedical importance in the Niger River Valley: evidence of temporal and spatial patterns in abundance, distribution and infection with Schistosoma spp.

Term B. truncatus BT positive BT prevalence B. forskalii BF positive BF prevalence
χ 2 df P χ 2 df P χ 2 df P χ 2 df P χ 2 df P χ 2 df P
Precipitation 0.4 1 0.548        0.6 1 0.427       
Site type 33.2 6 < 0.0001 15 6 0.02 92.9 6 < 0.0001 27.8 6 < 0.0001 4.3 7 0.742 9.5 7 0.219
Locality 107 18 < 0.0001 41.7 19 0.002 139.4 13 < 0.0001 34 19 0.018 2 19 1 13.5 9 0.139
Month 85.4 11 < 0.0001 62.3 11 0 18.9 11 0.063 32.4 11 0.001 0.1 1 0.781 29.4 11 0.002
BT positive total 33.8 1 < 0.0001                
BF positive total           2.4 1 0.119       
  1. Key: Headers: names for given model, BT/BF positive: model of abundance of shedding snails for B. truncatus, B. forskalii and Bi. pfeifferi, respectively; BT/BF prevalence: model of Schistosoma spp. prevalence (proportion of snails shedding) in the given species; precipitation, WMO weather station precipitation data