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Table 2 Optimal discriminate analysis models for R. aurora occurrence addressing the seven variables examined

From: Identification of habitat controls on northern red-legged frog populations: implications for habitat conservation on an urbanizing landscape in the Pacific Northwest

 

Training analysisa

LOO analysisb

Variable

Model

Number

Accuracy (%)

p<

ESS

Accuracy (%)

p<

ESS

AREA

–

–

–

0.9696

19.1

–

–

–

BULL

–

–

–

0.9999

4.8

–

–

–

CON

If CON ≤ 96.26 predict no occurrence

7

85.7

0.0009

81.0

71.4

0.0039

61.9

 

If CON > 96.26 predict occurrence

21

95.2

  

90.5

–

–

EMG

–

–

–

0.0921

52.4

–

–

–

FISH

–

–

–

0.0615

42.9

–

–

–

FRP

If FRP ≤ 50.1% predict no occurrence

7

100.0

0.0238

61.9

–

  
 

If FRP > 50.1% predict occurrence

21

61.9

   

0.0604

42.9

PCF

If PCF ≤ 28.0% predict no occurrence

7

85.7

0.0025

76.2

71.4

0.0095

57.1

 

If PCF > 28.0% predict occurrence

21

90.5

  

85.7

  
  1. aTraining analysis reveals the maximum-accuracy (optimal) model by using every possible cut-point (or assignment rule) to classify sample observations
  2. bLeave-one-out or LOO analysis is used to assess potential cross-generalizability of the model. See text for details
  3. Cut points, group sample sizes, and accuracy are shown only for the best models considered significant (p < 0.05)