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Table 7 Best fit models (i.e., models with lowest AICc) and importance weights for predictor variables for shrub species presence in all plots and in all unburned plots in Yosemite National Park, California, USA (1991 to 2017). Species listed occurred in five or more plots for all plots and unburned plots, respectively. Models are defined in Table 1 and slope coefficients are displayed for BURN and FRID when in the best-fit model. The coefficients represent the change in log odds of occurrence for every 10-unit increase in FRID. Important effects are indicated by positive (+) and negative (–) symbols according to the sign of their coefficients for AET or Deficit effects, or by asterisks (*) for BURN and FRID effects. Single sign denotes significance (variable importance >0.7 and P value <0.05), double sign denotes strong significance (variable importance >0.9 and P value <0.01), zero (0) or ns denotes non-significance (variable importance <0.7 or P value >0.05), and n/a denotes that the variable did not occur in the best model

From: The distribution of woody species in relation to climate and fire in Yosemite National Park, California, USA

  Model AET AET2 Deficit Deficit2 BURN Model AET AET2 Deficit Defici2 FRID
Species All plots Unburned plots
Arctostaphylos nevadensis 1b 0 0 0 0 n/a 1b 0 0 0 0 n/a
Arctostaphylos patula 2b 0 0 + – – 1.042** 1b 0 0 + n/a
Arctostaphylos viscida 2b 0 + ++ 0 0.592ns 3a 0 n/a ++ n/a 1.109*
Artemisia rothrockii 1b 0 0 0 0 n/a 1b 0 0 0 0 n/a
Artemisia tridentata 1b 0 0 0 0 n/a 1b 0 0 0 0 n/a
Ceanothus cordulatus 2b ++ – – 0 1.703** 1b + 0 0 n/a
Ceanothus cuneatus 1b 0 0 0 0 n/a 1b 0 0 0 0 n/a
Ceanothus integerrimus 2a ++ n/a ++ n/a 1.541** 1a ++ n/a + n/a n/a
Cercocarpus betuloides 2b 0 0 0 0 –16.791ns 1b 0 0 0 0 n/a
Chamaebatia foliolosa 2a ++ n/a 0 n/a 1.144** 3a ++ n/a 0 n/a 1.383**
Chrysolepis sempervirens 1b 0 0 0 – – n/a 1b 0 0 + – – n/a
Holodiscus discolor 2b 0 0 0 – – –15.544ns 1b 0 0 0 – – n/a
Prunus emarginata 1b 0 0 + n/a 1b 0 0 + n/a
Quercus vacciniifolia 1b – – 0 n/a 3b – – 0 0 – – –1.535ns
Salix orestera 1a 0 n/a 0 n/a n/a 1a 0 n/a 0 n/a n/a
Salix scouleriana 2b 0 0 0 0 2.283** n/a n/a n/a n/a n/a n/a