Psyche: A Journal of Entomology / 2011 / Article / Tab 2

Research Article

Environmental Factors Influencing Foraging Activity in the Social Wasp Polybia paulista (Hymenoptera: Vespidae: Epiponini)

Table 2

Linear mixed effects (LME) models performed between the number of wasps foraging in Polybia paulista and six explanatory variables (temperature, humidity, luminosity, season, month, and hour). Tested models comparison: k = degree of freedom, ΔAICC= difference in Akaike’s Information Criterion for each model from the most parsimonious model, and wAICc = AICc weight.
(a) Random effects

𝑘 ΔAICCwAICC

Nest + month100.000.779
Nest + month + hour112.50.221
Nest921.7<0.001

(b) Correlation structure

𝑘 ΔAICCwAICC

corAR1110.000.541
corARMA110.500.431
Without correlation106.40.022
corCompSymm118.90.006

(c) Fixed effects

𝑘 ΔAICCwAICC

Season + temp70.000.41
Season + temp + humidity81.150.23
Temp61.180.22
Season + hour + temp82.110.14