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Table 4 Estimated species richness (mean, standard error and 95% confidence interval) based on non-parametric estimators of species richness computed using EstimateS 8.2 (Colwell 2009)

From: Early detection of potentially invasive invertebrate species in Mytilus galloprovincialis Lamarck, 1819 dominated communities in harbours

Estimator Total Native species Alien species
No. of observed species 74 64 10
Chao2 90.3 ± 12.7
(78.2–137.1)
82.1 ± 14.9
(68.4–138.1)
10 ± 0.3
(10.0–10.0)
ICE 82.5 ± 0.01 72.2 ± 0.01 10.6 ± 0
1st order jackknife 85.8 ± 3.1 74.8 ± 3.0 11 ± 1
2nd order jackknife 94.6 83.6 11
Bootstrap 78.9 68.5 10.5