Table 1 Effect of the number of tourists together with the potential confounding factor of type of sediment granulometry and beach length on the richness of meiofaunal ZOTUs (zero-radius operational taxonomic units) at the three water depths, according to a type II ANOVA output of generalized linear models.

From: Human access impacts biodiversity of microscopic animals in sandy beaches

Predictor

LR Chisq

Estimate ± s.e.

df

P

Swash

    

  Tourists

4.786

−0.170 ± 0.078

1

0.028

  Granulometry

NA

NA

NA

NA

  Length

0.003

−0.004 ± 0.072

1

0.956

Shallow

    

  Tourists

0.000

−0.005 ± 0.300

1

0.987

  Granulometry

53.428

NA

4

<0.0001

  Length

0.003

−0.017 ± 0.298

1

0.957

Deep

    

  Tourists

2.388

0.070 ± 0.045

1

0.122

  Granulometry

101.570

NA

4

<0.0001

  Length

0.060

0.011 ± 0.043

1

0.807

  1. LR Chisq likelihood ratio chi-square values, df degrees of freedom, P chi-square goodness of fit, s.e. standard error. Differences in granulometry were not analysed at the swash level because only one granulometry type was present for the level. P values for significant predictors are marked in bold.
Back to article page