Table 2 Summary of the two-way ANOVA for differences in abundance (ind. per m2) in ETP, CR and WPR, at different depths (see Fig. 4).
From: Sponge diversity in Eastern Tropical Pacific coral reefs: an interoceanic comparison
Source | Sum of Squares | Df | Mean Square | F-Ratio | P-Value |
|---|---|---|---|---|---|
MAIN EFFECTS | |||||
Region | 5008.84 | 2 | 2504.42 | 7.17 | 0.0010 |
Depth | 3804.32 | 3 | 1268.11 | 3.63 | 0.0141 |
RESIDUAL | 61088.5 | 175 | 349.077 | ||
TOTAL (CORRECTED) | 69988.7 | 180 | |||
Multiple Range Tests for Abundance | |||||
Count | LS Mean | LS Sigma | |||
ETP | 23 | −2.44891 | 4.28989 | ||
CR | 54 | 8.11227 | 2.83822 | ||
WPR | 104 | 13.5795 | 2.25136 | ||
Contrast | Difference | +/− Límits | |||
1–5 m ETP vs 1–5 m CR | 10.5612 | 9.30228 | |||
1–5 m ETP vs 1–5 m WPR | −16.0285 | 8.57705 | |||
6–10 m CR vs 11–15 m WPR | 15.5055 | 13.1302 | |||
