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Table 2 Selection of multiseason-multistate models for estimating occupancy and reproduction probabilities of great crested newts

From: Linking habitat suitability to demography in a pond-breeding amphibian

Model AIC ∆AIC w K
ψ (HSI), R (HSI), δs, p [1] (CE), p [2] (CE) 261.34 0.00 0.77 12
ψ (.), R (HSI), δs, p [1] (CE), p [2] (CE) 263.89 2.55 0.22 11
ψ (HSI), R (.), δs, p [1] (CE), p [2] (CE) 269.31 7.97 0.02 11
ψ (.), R (.), δs, p [1] (CE), p [2] (CE) 278.04 16.70 0.00 10
  1. Probability of pond occupancy (ψ) and probability of reproduction, given presence (R) were held constant (.) or modelled as functions of habitat suitability index (HSI). The structure of the top-tanking model for detection probabilities {ψ (.), R (.), δs, p [1] (CE), p [2] (CE)} was used to evaluate the effect of HSI on ψ and R. Probability of correctly identifying a site as breeding site, given successful reproduction (δ) was modelled different in each capture period and probabilities of detecting occupancy, given occupancy without reproduction (p [1]) and with successful reproduction (p [2]) were modelled as functions of the number of capture events per capture period (CE). AIC: Akaike’s information criterion; ∆AIC: difference of the AIC value of the current and the best model; w: AIC weight; K: number of parameters.