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Table 3 Results of quadratic regression analyses done separately for overall species richness and diversity for Nord-Ost Hafen and Kringel

From: An environmental stress model correctly predicts unimodal trends in overall species richness and diversity along intertidal elevation gradients

 

Richness (Nord-Ost Hafen)

Richness (Kringel)

Diversity (Nord-Ost Hafen)

Diversity (Kringel)

a (SE)

−0.386 (0.053)

−0.443 (0.209)

−0.042 (0.005)

−0.037 (0.018)

CI for a

−0.492/−0.280

−0.860/−0.027

−0.052/−0.033

−0.072/−0.002

b (SE)

1.455 (0.551)

1.897 (1.493)

0.207 (0.050)

0.149 (0.126)

CI for b

0.362/2.547

−1.082/4.876

0.108/0.306

−0.104/0.401

c (SE)

20.455 (1.216)

12.433 (2.283)

1.791 (0.110)

1.424 (0.192)

CI for c

18.045/22.864

7.880/16.987

1.573/2.010

1.040/1.807

n

115

72

115

71

Adjusted r 2

0.801

0.226

0.806

0.247

  1. Model parameters a, b, and c belong to the following equation: Y = aX 2 + bX + c (where Y was either richness or diversity and X was intertidal elevation). Values of standard error (SE) and 95 % confidence interval (CI) are given for each parameter