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Table 1 Odds ratios (OR) and AICs for the best fitting generalized linear models of the effects of bird number of five waterfowl species on AIV prevalence

From: Avian influenza infection dynamics under variable climatic conditions, viral prevalence is rainfall driven in waterfowl from temperate, south-east Australia

Species Seasonality (breeding area) Species number OR AIC
Australian Shelduck Seasonal (south-eastern Australia) 1.91*** 322.11
Chestnut teal Seasonal (south-eastern Australia) 1.09 383.60
Grey teal Non-seasonal (inland) 0.40*** 272.49
Pacific black duck seasonal (south-eastern Australia) 0.94 384.07
Pink-eared duck Non-seasonal (inland) 0.56*** 316.13
  1. An OR > 1 indicates a positive, whereas an OR < 1 indicates a negative effect of the explanatory variable (i.e. OR > 1 means that AIV prevalence was greater when bird numbers were higher and OR < 1 means that AIV prevalence was greater when bird numbers were lower). Stars indicate significance level: ***p < 0.001.