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Table 4 Best fit models of Crocidura spp. abundance above 1300 m with climate and crop variables

From: Seasonal fluctuations of small mammal and flea communities in a Ugandan plague focus: evidence to implicate Arvicanthis niloticus and Crocidura spp. as key hosts in Yersinia pestis transmission

Model R 2 AIC ∆AIC Model parameters Parameter estimate
Climate variables only – Above 1300 m
1 0.58 −245.6 0 Precipitation – 3 mo. lag 0.28
Mean temperature – 0 mo. lag −0.15
2 0.56 −244.3 1.3 Precipitation – 3 mo. lag 0.41
Precipitation – 4 mo. lag −0.25
Climate and crop variables – Above 1300 m
1 0.60 −247.6 0 Precipitation – 3 month lag 0.43
Potato harvest – 2 mo. lag −0.32
2 0.58 −245.7 1.9 Precipitation – 3 mo. lag 0.53
Pumpkin harvest – 3 mo. lag −0.29
  1. Model r2, AIC, and ∆AIC values and parameter estimates for all models with ∆AIC <2 and parameter estimates significant at an α = 0.05 confidence level. ∆AIC represents the difference between a model’s AIC value and the AIC value of the best fit overall model. Parameter estimate values are expressed as a change in abundance per 100 trap nights as a result of a 1°C increase in temperature, 100 mm increase in precipitation, or per each additional homestead at a trapping location harvesting a given crop.