Table 2.
Discriminant function analysis (DFA) model to predict the ratio of UCYN-A1 to UCYN-A2 across samples – Scoring Coefficient and Canonical Structure Table.
| Source | Scoring coefficients: | Total canonical |
|---|---|---|
| Canon 1 | structure: Canon 1 | |
| ln(temp) | 5.7434101 | 0.6212042 |
| ln(chl a) | 0.4674547 | 0.482846 |
| ln(silicate) | 1.2997311 | 0.8002822 |
| ln(NOx) | -0.321243 | -0.267556 |
| Monthly average precipitation | -0.34702 | 0.4116781 |
| Monthly average wind speed | 0.6159435 | 0.4301353 |
| Weekly average precipitation | 0.068581 | 0.2982829 |
| Weekly average wind speed | -0.223516 | 0.2113514 |
| Weekly average wind direction | 0.0049191 | 0.02119 |
Values indicate how environmental factors discriminate between two community states: (1) disproportionate numbers of UCYN-A1 or (2) disproportionate numbers of UCYN-A2. These two states were based on whether a sample ratio of UCYN-A1 to UCYN-A2 was greater than the long-term average value. Discrimination of UCYN-A2 from UCYN-A1 is associated with positive values of scoring coefficient canonical axis 1. Discrimination of UCYN-A1 from UCYN-A2 is associated with negative values of scoring coefficient canonical axis 1.