Table 3 Summary of BIO-ENV analysis looking at matches in environmental variable with faunal composition.

From: Low level off-road vehicle (ORV) traffic negatively impacts macroinvertebrate assemblages at sandy beaches in south-western Australia

 

Upper Zone

Lower Zone

Min-Max

Min-Max

Sand Characteristics

 Sand Grain Size

0.103–0.106

0.056–0.058

 Sorting

0.153–0.156

0.06–0.06

 Kurtosis

0.133–0.134

0.052–0.053

 Skewness

0.101–0.104

0.059–0.064

 Sand Moisture Content

0.028

−0.033

Beach Characteristics

 Slope

0.065–0.066

0.066–0.069

 Width

0.061–0.064

0.068–0.07

 Average Wave Breaker Height

0.038–0.042

0.059–0.06

 Average Time Between Waves

0.242–0.244

0.219–0.220

Vehicle Traffic

 Number of Tracks

0.503–0.504

0.176–0.178

 Average Percentage Overall Disturbed

0.513–0.514

0.209–0.210

 Tracks per meter

0.509–0.510

0.185–0.191

  1. Values are correlation coefficient on characteristics that can best explain the differences between impact and control sites inmacroinvertebrate communities. Values are based on Spearman correlation coefficients and analyses was undertaken for bothraw data and log(X + 1) transformations.
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