Table 1.
Adipose lipid content ± SE of capture and remote biopsies from polar bears from the Southern Beaufort (SB) Sea subpopulation sampled from 2004–2011.
| Adipose lipid content (%) |
||||
|---|---|---|---|---|
| All bears | Adult females | Adult males | Immature bears | |
| Capture biopsies | ||||
| All years (2004–2011) | 43.2 ± 0.7 (n = 550) | 44.4 ± 1.2a (n = 199) | 36.2 ± 1.1b (n = 197) | 50.7 ± 1.2c (n = 154) |
| All years-spring (2004–2011) | 41.0 ± 0.8 (n = 474) | 41.8 ± 1.3 (n = 161) | 36.0 ± 1.1 (n = 191) | 48.4 ± 1.5 (n = 122) |
| All years-fall (2008–2010) | 56.9 ± 1.3 (n = 76) | 56.0 ± 2.0 (n = 38) | 51.4 ± 9.7 (n = 6) | 58.3 ± 1.6 (n = 32) |
| 2004-spring | 39.0 ± 1.9 | 39.1 ± 3.0 | 30.0 ± 2.9 | 45.9 ± 3.3 |
| 2005-spring | 44.8 ± 2.0 | 45.5 ± 3.5 | 38.9 ± 2.6 | 56.3 ± 3.8 |
| 2006-spring | 37.5 ± 2.2 | 45.3 ± 2.9 | 31.7 ± 3.3 | 40.6 ± 4.6 |
| 2007-spring | 36.7 ± 1.8 | 36.2 ± 2.3 | 32.1 ± 2.2 | 53.5 ± 5.6 |
| 2008-spring | 45.6 ± 1.9 | 46.0 ± 4.4 | 42.3 ± 2.7 | 50.7 ± 2.2 |
| 2009-spring | 38.6 ± 2.0 | 39.5 ± 4.7 | 38.2 ± 2.6 | 38.8 ± 3.7 |
| 2010-spring | 39.8 ± 2.5 | 40.3 ± 3.7 | 31.5 ± 3.4 | 50.1 ± 5.4 |
| 2011-spring | 47.8 ± 2.2 | 47.2 ± 3.8 | 46.5 ± 4.4 | 48.9 ± 3.5 |
| 2008-fall | 57.7 ± 1.4 | 57.2 ± 2.8 | 57.5 ± 0.0 | 58.0 ± 1.6 |
| 2009-fall | 55.5 ± 2.8 | 54.4 ± 3.4 | 48.4 ± 16.0 | 59.4 ± 4.8 |
| 2010-fall | 56.6 ± 3.9 | 56.6 ± 3.9 | ||
| Remote biopsies | ||||
| All years (2011–2012) | 20.9 ± 1.3 (n = 96) | 22.8 ± 1.9a (n = 45) | 18.0 ± 1.8a (n = 37) | 22.4 ± 4.4a (n = 14) |
| All years-spring (2012) | 26.1 ± 3.1 (n = 24) | 33.4 ± 4.7 (n = 11) | 19.6 ± 4.0 (n = 9) | 20.7 ± 6.6 (n = 4) |
| All years-fall (2011–2012) | 19.1 ± 1.4 (n = 72) | 19.3 ± 1.7 (n = 34) | 17.4 ± 2.0 (n = 28) | 23.2 ± 5.8 (n = 10) |
| 2011-fall | 19.5 ± 1.8 | 19.8 ± 2.3 | 16.0 ± 2.6 | 30.4 ± 6.9 |
| 2012-fall | 18.4 ± 2.2 | 18.4 ± 2.3 | 19.6 ± 3.1 | 15.9 ± 8.8 |
Different letters denote significant differences in lipid content among age/sex classes.