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Table 3 Generalized linear mixed model predicting first-year survival of resprouting plants (n =3 22) following 13 prescribed fires, from 2006 to 2010, at Archbold Biological Station, Venus, Florida, USA, where the effect of prescribed fire on resprouting Florida vegetation was examined. Plants within transects were not independent so transect was evaluated as a random effect (variance < 0.001) in the model. Variables included maximum fire temperature, residence time in seconds (log), burn season, habitat, and species groups. Reference categories for burn season were “Fire,” “Scrubby Flatwoods” for habitat, and “Oaks” for species groups. For each variable, the estimated coefficient (β ± standard error [SE]) shows the relationship and magnitude of change with the probability of survival. Sample size (n) and mean first-year survival is provided for each group. Marginal predictors are in italics (P < 0.1). The random effects of transect were also highly significant (P < 0.001)

From: Are fire temperatures and residence times good predictors of survival and regrowth for resprouters in Florida, USA, scrub?

Fixed effects

β (SE)

P-value

R2

n

First-year survival (%)

Intercept

2.92 (1.848)

0.114

0.039

 

91.0

Maximum temperature

<0.01 (0.001)

0.757

<0.001

322

 

Residence time (log)

−0.26 (0.744)

0.727

0.001

322

 

Burn season

Fire

   

167

89.2

Wet

0.63 (0.634)

0.323

<0.001

85

94.1

Dry

0.93 (0.736)

0.204

0.001

70

91.4

Habitat

Scrubby flatwoods

   

143

93.7

Sandhill

0.39 (0.678)

0.565

<0.001

72

94.4

Sand pine–oak scrub

1.13 (0.673)

0.094

0.004

36

83.3

Flatwoods

−0.84 (0.559)

0.131

0.004

71

85.9

Species group

Oaks

   

97

93.8

Palms

1.11 (1.101)

0.313

0.007

48

97.9

Ericads

−0.32 (0.653)

0.620

0.001

70

91.4

Graminoids

−0.65 (0.723)

0.368

0.002

32

87.5

Shrubs

−0.92 (0.564)

0.101

0.008

75

84.0