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Table 2 Results from the best-fit linear mixed models for large (> 10 cm DBH), small (1 cm ≤ BDH < 10 cm) and all trees (DBH > 1 cm). BDobs: observed β-diversity. BDexp: expected β-diversity. BDdev: β-deviation (BDobs – BDexp)/SDexp. Conditional R2 takes into account both fixed and random effects to measure the goodness of adjustment and prediction power, while marginal R2 only has the fixed effects part. NS > 0.05, *p ≤ 0.05, ** p ≤ 0.01, *** p ≤ 0.001

From: The importance of grain and cut-off size in shaping tree beta diversity along an elevational gradient in the northwest of Colombia

 

Dependent variable

Variable

Parameter

Standard error

p-value

Marginal R2

Conditional R2

Large trees

BDobs

10 × 10

0.80

0.016

***

  

20 × 20

0.65

0.016

***

  

50 × 50

0.39

0.016

***

  

elevation

−0.07

0.017

**

0.89

0.94

richness

0.06

0.013

**

  

20 × 20 × elevation

0.01

0.018

NS

  

50 × 50 × elevation

0.05

0.018

**

  

BDexp

10 × 10

0.78

0.015

***

  

20 × 20

0.58

0.015

***

  

50 × 50

0.30

0.015

***

0.93

0.95

elevation

−0.08

0.011

***

  

richness

0.05

0.012

***

  

BDdev

10 × 10

3.85

0.7

***

  

20 × 20

6.73

0.7

***

  

50 × 50

6.80

0.7

***

  

elevation

1.07

0.7

NS

0.94

0.95

richness

0.04

0.006

*

  

20 × 20 × elevation

0.62

0.5

NS

  

50 × 50 × elevation

1.76

0.5

**

  

Small Trees

BDobs

5 × 5

0.77

0.011

***

  

10 × 10

0.57

0.013

***

0.94

0.95

20 × 20

0.37

0.013

***

  

elevation

−0.03

0.011

*

  

richness

0.02

0.007

*

  

BDexp

5 × 5

0.70

0.014

***

  

10 × 10

0.47

0.014

***

  

20 × 20

0.25

0.014

***

0.92

0.96

elevation

−0.05

0.013

*

  

richness

0.02

0.012

*

  

BDdev

5 × 5

9.80

1.0

***

  

10 × 10

10.5

0.6

***

  

20 × 20

9.71

0.6

***

  

elevation

22.53

1.0

*

0.25

0.85

10 × 10 × elevation

0.03

0.6

NS

  

20 × 20 × elevation

1.6

0.6

*

  

All Trees

BDobs

5 × 5

0.76

0.009

***

  

10 × 10

0.56

0.009

***

  

20 × 20

0.35

0.009

***

0.93

0.97

elevación

−0.04

0.007

***

  

richness

0.03

0.007

*

  

BDexp

5 × 5

0.69

0.012

***

  

10 × 10

0.46

0.012

***

  

20 × 20

0.25

0.012

***

0.95

0.97

elevación

−0.06

0.010

***

  

richness

0.03

0.010

**

  

BDdev

5 × 5

10.1

1.2

***

  

10 × 10

10.6

1.2

***

0.30

0.80

20 × 20

10.0

1.2

***

  

elevation

2.65

1.7

*