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Table 4 Results of the bivariate O-ring statistic for bivariate analysis

From: Does the persistence of sweet chestnut depend on cultural inputs? Regeneration, recruitment, and mortality in Quercus- and Castanea-dominated forests

Sites

Point pattern

Model

P (0–10 m)

Rank

Distance (m)

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

CDF1

Cs saplings vs trees

Toroidal shift

0.155

170

r

R

r

r

r

r

r

r

r

r

     

CDF2

Cs saplings vs trees

Toroidal shift

0.135

174

r

R

+

r

+

r

r

r

r

r

r

r

r

r

r

CDF4

Cs saplings vs trees

Toroidal shift

0.670

66

r

R

r

r

r

r

r

r

r

r

r

r

r

r

r

CDF5

Cs saplings vs trees

Toroidal shift

0.120

170

r

R

r

r

r

r

r

r

r

r

r

r

r

r

CDF6

Cs saplings vs trees

Toroidal shift

0.220

157

r

R

r

r

r

r

r

r

r

r

r

r

r

r

CDF5

Cs young vs old cohorts

Toroidal shift

0.795

42

r

R

r

r

r

r

r

r

r

r

r

r

r

r

r

CDF6

Cs young vs old cohorts

Toroidal shift

0.035

194

r

R

r

r

r

r

r

r

r

r

r

r

r

CDF1

Cs alive vs dead trees

Random labeling

0.005

200

r

r

r

r

r

r

r

r

     

CDF2

Cs alive vs dead trees

Random labeling

0.005

200

r

r

CDF3

Cs alive vs dead trees

Random labeling

0.010

199

R

r

r

r

r

r

r

r

r

CDF1

Cs alive and dead trees vs other trees

Trivariate

  

r

R

r

r

r

r

r

r

r

r

     

CDF2

Cs alive and dead trees vs other trees

Trivariate

  

r

R

r

r

r

r

r

r

CDF3

Cs alive and dead trees vs other trees

Trivariate

  

r

+

+

+

+

+

r

r

r

r

r

r

r

  1. P value of the goodness-of-fit (GoF) tests at distances of up to 10 m and rank of the pair correlation function after 199 iterations are shown. Statistical significance at 95% simulated envelopes: (r) independent pattern; (+) association pattern; (−) repulsion pattern