Table 3. Statistical analyses.
SIMPER analysis using the Bray–Curtis similarity matrix on fourth-root transformed living (stained) benthic foraminifera abundance data from the Lesser Syrtis. The main species contributing to the similarity within the SIMPROF cluster groups are identified. Note: Only the taxa contributing >5 to the within-group average similarity are shown.
| Cluster | Species | Average Abundance | Average similarity | Similarity/SD | Contribution |
|---|---|---|---|---|---|
| B | Eggerelloides scaber | 2.96 | 6.84 | 9.93 | 11.95 |
| Buliminella elegantissima | 2.43 | 5.65 | 9.28 | 9.87 | |
| Brizalina striatula | 2.27 | 5.22 | 9.29 | 9.12 | |
| Asterigerinata mamilla | 2.23 | 4.98 | 6.45 | 8.71 | |
| Haynesina depressula | 1.67 | 3.56 | 4.11 | 6.22 | |
| Ammonia tepida | 1.73 | 3.45 | 3.87 | 6.03 | |
| Nonionides grateloupi | 1.43 | 3.00 | 5.20 | 5.25 | |
| Bulimina marginata | 1.29 | 2.92 | 9.65 | 5.10 | |
| C | Trochamina inflata | 1.69 | 7.61 | N/A | 13.68 |
| Rosalina vilardeboana | 2.04 | 7.27 | N/A | 13.07 | |
| Quinqueloculina laevigata | 1.25 | 5.78 | N/A | 10.40 | |
| Textularia conica | 1.54 | 5.78 | N/A | 10.40 | |
| Brizalina striatula | 1.48 | 4.86 | N/A | 8.74 | |
| Buliminella elegantissima | 1.28 | 4.86 | N/A | 8.74 | |
| Cornuspira involvens | 1.09 | 4.86 | N/A | 8.74 | |
| D | Amphistegina lessonii | 2.90 | 4.55 | N/A | 8.70 |
| Rosalina vilardeboana | 4.08 | 4.36 | N/A | 8.33 | |
| Planorbulina mediterranensis | 2.43 | 3.75 | N/A | 7.17 | |
| Rosalina macropora | 2.21 | 3.07 | N/A | 5.86 | |
| Mychostomina revertens | 1.79 | 2.72 | N/A | 5.19 | |
| E | Rosalina macropora | 1.99 | 5.29 | 6.76 | 9.83 |
| Rosalina vilardeboana | 1.57 | 4.11 | 4.57 | 7.65 | |
| Brizalina striatula | 1.55 | 4.01 | 4.76 | 7.45 | |
| Amphistegina lessonii | 1.77 | 4.00 | 1.87 | 7.44 | |
| Asterigerinata mamilla | 1.58 | 3.50 | 2.08 | 6.51 | |
| Peneroplis pertusus | 1.41 | 2.85 | 1.36 | 5.30 | |
| F | Ammonia tepida | 1.49 | 13.12 | 8.79 | 36.52 |
| Brizalina striatula | 1.24 | 13.12 | 8.79 | 36.52 |