Table 1 The five most-supported models plus the intercept-only model from a set of 105 candidate models estimating daily survival rates of Dunlin chicks near Utqiaġvik, Alaska, 2008–2009.

From: Warming Arctic summers unlikely to increase productivity of shorebirds through renesting

Modela

Kb

AICc

ΔAICcc

wid

HD*A2 + I

7

196.39

0.00

0.47

HD*A2

6

197.62

1.23

0.26

HD*A2 + T

7

198.78

2.39

0.14

HD*A2 + Y

7

199.65

3.26

0.09

HD2*A + I

7

204.86

8.47

0.01

Intercept

1

230.98

34.59

0.00

  1. aVariables in the models are hatch date as a linear (HD) or quadratic term (HD2), chick age as a linear (A) or quadratic term (A2), daily invertebrate biomass (I), daily average air temperature (T), and year (Y). When a quadratic effect was included in a model, we also included the linear effect.
  2. bNo. of parameters.
  3. cDifference between models Akaike’s Information Criterion corrected for small sample size and the lowest AICc value.
  4. dAICc relative weight attributed to model.
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