Groups

R Statistic

Significance

Natural Substrate

C, I1

0.196

0.010

**

C, I2

0.299

0.005

**

I1, I2

0.083

0.11

Artificial Substrate

C, I1

0.442

0.0003

***

C, I2

0.323

0.017

*

I1, I2

0.213

0.05