Table 1 Results from Spearman rank correlation analysis testing for superposition. Shown are significant spearman rank correlation coefficients (rho) at a significance level P ≤ 0.05. Abbreviations: na, not applicable; --, not significant. Note that signs of correlations are considered not relevant for assessing superposition
RDA 1 | RDA 2 | RDA 3 | RDA 4 | |
|---|---|---|---|---|
Birds | ||||
Leuconotopicus borealis | -0.346 | -0.346 | na | na |
Protonotaria citrea | 0.323 | -0.337 | na | na |
Sayornis phoebe | 0.478 | 0.291 | na | na |
Setophaga dominica | 0.367 | 0.387 | na | na |
Troglodytes aedon | -0.403 | 0.379 | na | na |
Phytoplankton | ||||
Chroococcales (undefined) | 0.492 | 0.435 | -- | -- |
Dinobryon sp. | 0.385 | 0.521 | -- | -- |
Dinobryon bavaricum var. vanhoeffenii | 0.469 | 0.632 | -- | -- |
Monoraphidium minutum | 0.445 | 0.484 | -- | -- |
Cryptomonas marssonii | 0.542 | -- | 0.494 | -- |
Staurodesmus triangularis var. limneticus | 0.455 | -- | 0.428 | -- |
Chrysochromulina sp. | 0.453 | -- | -- | -0.502 |
Undefined flagellates | -0.381 | -- | -- | 0.381 |
Gymnodinium uberrimum | 0.499 | -- | -- | -0.439 |
Monoraphidium dybowskii | 0.415 | -- | -- | 0.495 |
Parvodinium inconspicuum | 0.428 | -- | -- | 0.514 |
Snowella atomus | 0.412 | -- | -- | 0.435 |
Staurastrum longipes | -0.499 | -- | -- | 0.439 |
Ceratium hirundinella | -- | 0.412 | -- | 0.629 |
Tabellaria flocculosa var. flocculosa | -- | 0.402 | -- | 0.632 |
Urosolenia longiseta | -- | 0.412 | -- | 0.629 |
Chroococcus minutus | -- | 0.689 | -- | 0.392 |
Rhabdogloea smithii | -- | -- | -0.383 | -0.424 |
Quadrigula closterioides | -0.402 | -0.388 | -- | -0.468 |
Pseudokephyrion sp. | 0.402 | 0.388 | -- | 0.468 |
Synura sp. | 0.391 | 0.445 | -- | 0.401 |
Invertebrates | ||||
Cyrnus insolutus | 0.205 | 0.239 | na | na |
Paratanytarsus sp. | -0.356 | -0.298 | na | na |
Sialis lutaria | 0.217 | 0.194 | na | na |