Table 4. Sub-Antarctic freshwater macroinvertebrate community composition.
Similarity Percentages (SIMPER) analysis of freshwater macroinvertebrate community composition that contribute approximately 90% of the abundance of the assemblage from sampling sites of the Róbalo river watershed, Navarino Island, Chile.
| Elevation (m.a.s.l.) | Species | Av. Abund. | Sim/SD | Contrib. % | Cum. % |
|---|---|---|---|---|---|
| 20 | Hyalella sp. | 5.42 | 5.78 | 30.59 | 30.59 |
| Chiro-morph1 | 2.66 | 1.1 | 11.64 | 42.22 | |
| Glossi-morph1 | 2.1 | 2.52 | 11.35 | 53.57 | |
| Chiro-morph2 | 2.16 | 1.13 | 10.05 | 63.62 | |
| Lancetes angusticollis | 1.91 | 2.6 | 8.76 | 72.39 | |
| Sigara sp. | 2.06 | 1.57 | 7.31 | 79.69 | |
| Orth-morph1 | 2.21 | 1.01 | 6.68 | 86.38 | |
| Tany-morph1 | 1.92 | 1.2 | 6.01 | 92.39 | |
| 250 | Hyalella sp. | 2.73 | 3.53 | 46.72 | 46.72 |
| Oligo-morph1 | 0.88 | 0.9 | 8.82 | 55.54 | |
| Meridialaris chiloeense | 0.8 | 0.59 | 7.62 | 63.16 | |
| Ceratopog-morph1 | 0.47 | 0.55 | 6.76 | 69.92 | |
| Glossi-morph1 | 0.42 | 0.65 | 4.99 | 74.91 | |
| Chiro-morph1 | 0.66 | 0.47 | 4.83 | 79.75 | |
| Glossi-morph2 | 0.86 | 0.41 | 4.38 | 84.12 | |
| Chiro-morph2 | 0.61 | 0.65 | 4.32 | 88.44 | |
| Pectinidens diaphanum | 0.52 | 0.53 | 3.46 | 91.9 | |
| Hyalella sp. | 4.3 | 4.7 | 49.67 | 49.67 | |
| 480 | Oligo-morph1 | 2.52 | 2.27 | 24.68 | 74.35 |
| Lancetes angusticollis | 1.51 | 1.2 | 13.16 | 87.51 | |
| Chiro-morph1 | 1.06 | 0.67 | 5.4 | 92.92 | |
| 700 | Hyalella sp. | 4.52 | 3.37 | 78.22 | 78.22 |
| Oligo-morph1 | 1.33 | 1.31 | 14.8 | 93.01 |
Notes.
Abreviations
- Av. Abund
- Average Abundance
- Sim/SD
- Similarity Standard Deviation
- Contrib.
- Contribution
- Cum.
- Cumulative
- Chiro
- Chironomidae
- Daph
- Daphnidae
- Glos
- Glosiphoniidae
- Oligo
- Oligochaeta
- Orth
- Orthocladiinae
- Tany
- Tanypodinae
- morph
- morphotype