Table 2 Summary of linear mixed models relating response variables with site, time since burn, the quadratic term time since burn squared, and number of fires. The Shiloh site is the base for sites and is represented by the intercept. Data collected at Kennedy Space Center, FL, USA, from 1983 to 2019–2020

Height

Intercept

52.945

6.737

< 0.001

Time since burn (TSB)

1.345

0.122

< 0.001

Site = Haulover

15.297

8.805

0.099

Site = Happy Creek 1

−8.301

8.991

0.369

Site = Happy Creek 2

−13.808

8.975

0.143

TSB * TSB

−0.0053

0.000904

< 0.001

Fire number

−2.762

0.614

< 0.001

Total cover ≥ 0.5 m

Intercept

55.891

5.743

< 0.001

Time since burn

2.096

0.122

< 0.001

Site = Haulover

15.085

7.410

0.055

Site = Happy Creek 1

−24.252

7.309

0.004

Site = Happy Creek 2

−32.469

7.270

< 0.001

TSB * TSB

−0.012

0.0011

< 0.001

Fire number

−2.451

0.733

0.001

Total cover < 0.5 m

Intercept

33.924

2.253

< 0.001

Time since burn

−0.378

0.033

0.06

Site = Haulover

−8.774

2.430

0.002

Site = Happy Creek 1

24.045

2.234

< 0.001

Site = Happy Creek 2

11.950

2.211

< 0.001

Fire number

2.782

0.499

< 0.001

Bare ground

Intercept

18.767

2.025

< 0.001

Time since burn

−0.646

0.058

< 0.001

TSB * TSB

0.0045

0.00049

< 0.001

Fire Number

0.964

0.334

0.004

Dominant Quercus ≥ 0.5 m

Intercept

31.580

4.463

< 0.001

Time since burn

0.810

0.70

<0.001

Site = Haulover

−20.982

5.935

0.002

Site = Happy Creek 1

−21.915

5.99

0.002

Site = Happy Creek 2

−23.992

6.427

0.002

TSB * TSB

−0.00457

0.00062

<0.001

Fire number

−2.522

0.423

< 0.001

Serenoa repens ≥ 0.5 m

Intercept

8.882

3.377

0.016

Time since burn

0.393

0.0539

< 0.001

Site = Haulover

38.371

4.788

< 0.001

Site = Happy Creek 1

4.846

4.570

0.304

Site = Happy Creek 2

5.421

4.563

0.251

TSB * TSB

−0.00206

0.000421

< 0.001