Table 1.
Relationship between dive parameters and maximum dive depth (D) for 58 imperial cormorants foraging during chick-rearing at Punta Leon, Argentina between 2004 and 2008. All durations are expressed in seconds, all overall dynamic body acceleration (ODBA) values in g and all depths in metre. p-Values for all functions are <0.001.
| parameter | function | r2 |
|---|---|---|
| descent duration | y = 0.78D + 1.6 | 0.97 |
| bottom duration | y = −0.0185D2 + 3.12D − 5.0 | 0.79 |
| ascent duration | y = 0.70D + 1.9 | 0.91 |
| pause duration | y = 12.31e0.0603D | 0.57 |
| descent ODBA | y = 0.368D + 1.59 | 0.91 |
| bottom ODBA | y = 0.826D0.956 | 0.66 |
| ascent ODBA | y = 1.24e0.0309D | 0.58 |