Table 1 C and N composition of beaver tissues as a function of decay stage.
From: Changes to vertebrate tissue stable isotope (δ15N) composition during decomposition
Decay Stage | Tissue type | δ15N (‰) | Wt. %N | δ13C (‰) | Wt. %C | C:N | −Ln(%N) | −Ln(%C) | Δ15Nanimal-diet | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Fresh | Bone | 4.5 ± 2.2 | 3.6 ± 0.1 | −24.7 ± 1.1 | 13.7 ± 1.8 | 3.8 ± 0.4 | −1.3 ± 0.0 | −2.6 ± 0.1 | 4.0 ± 2.2 | ||||||
Bloat | Bone | 4.4 ± 0.6 | 3.8 ± 0.2 | −23.1 ± 1.9 | 13.7 ± 1.1 | 3.6 ± 0.3 | −1.3 ± 0.1 | −2.6 ± 0.1 | 3.8 ± 0.6 | ||||||
Active | Bone | 5.9 ± 1.3 | 4.0 ± 0.6 | −21.7 ± 1.9 | 14.0 ± 2.2 | 3.5 ± 0.1 | −1.4 ± 0.1 | −2.6 ± 0.1 | 5.3 ± 1.3 | ||||||
Fresh | Fat | 3.4 ± 1.7 | ab | 0.7 ± 0.1 | ab | −34.3 ± 1.0 | 33.1 ± 26.0 | 49.2 ± 36.3 | 0.4 ± 0.2 | −3.3 ± 0.6 | 2.8 ± 1.7 | a | |||
Bloat | Fat | 3.5 ± 0.9 | a | 0.7 ± 0.2 | a | −33.3 ± 1.7 | 33.8 ± 22.2 | 54.7 ± 38.0 | 0.4 ± 0.4 | −3.4 ± 0.6 | 2.9 ± 0.9 | a | |||
Active | Fat | 5.8 ± 1.3 | b | 1.2 ± 0.5 | b | −32.0 ± 1.6 | 19.6 ± 0.3 | 18.7 ± 6.4 | −0.1 ± 0.4 | −3.0 ± 0.0 | 5.3 ± 1.3 | b | |||
Fresh | Hair | 3.6 ± 2.6 | 13.1 ± 0.5 | −25.2 ± 0.4 | 41.6 ± 1.1 | 3.2 ± 0.1 | −2.6 ± 0.0 | −3.7 ± 0.0 | 3.0 ± 2.6 | ||||||
Bloat | Hair | 4.4 ± 0.5 | 13.8 ± 0.8 | −24.1 ± 2.2 | 43.3 ± 1.9 | 3.1 ± 0.1 | −2.6 ± 0.1 | −3.8 ± 0.0 | 3.8 ± 0.5 | ||||||
Active | Hair | 5.8 ± 0.2 | 13.5 ± 1.3 | −23.3 ± 0.9 | 44.1 ± 1.1 | 3.3 ± 0.4 | −2.6 ± 0.1 | −3.8 ± 0.0 | 5.2 ± 0.2 | ||||||
Fresh | Gut contents | 0.6 ± 2.1 | a | 2.0 ± 0.6 | −30.0 ± 1.4 | 40.1 ± 3.4 | 22.2 ± 9.1 | −0.6 ± 0.3 | −3.7 ± 0.1 | ||||||
Bloat | Gut contents | 2.8 ± 1.4 | ab | 2.9 ± 0.7 | −29.4 ± 1.6 | 40.6 ± 1.6 | 15.3 ± 6.1 | −1.0 ± 0.3 | −3.7 ± 0.0 | 2.3 ± 1.4 | |||||
Active | Gut contents | 5.0 ± 2.6 | b | 2.7 ± 1.0 | −28.8 ± 0.9 | 41.2 ± 1.3 | 16.8 ± 10.1 | −0.9 ± 0.4 | −3.7 ± 0.0 | 4.5 ± 2.6 | |||||
Fresh | Gut tissue | 1.9 ± 1.4 | a | 9.0 ± 1.0 | −27.5 ± 1.0 | 42.5 ± 2.9 | a | 4.8 ± 0.8 | a | −2.1 ± 0.1 | −3.7 ± 0.1 | 1.3 ± 1.4 | a | ||
Bloat | Gut tissue | 3.4 ± 0.9 | ab | 10.0 ± 1.3 | −26.9 ± 1.5 | 45.1 ± 3.3 | ab | 4.5 ± 0.4 | b | −2.3 ± 0.1 | −3.8 ± 0.1 | 2.9 ± 0.9 | ab | ||
Active | Gut tissue | 5.1 ± 1.4 | b | 8.2 ± 1.5 | −27.6 ± 0.9 | 48.6 ± 2.3 | b | 6.1 ± 1.0 | b | −2.1 ± 0.2 | −3.9 ± 0.0 | 4.6 ± 1.4 | b | ||
Fresh | Heart | 3.3 ± 1.4 | a | 11.4 ± 1.4 | −27.2 ± 1.0 | 46.1 ± 3.0 | 4.1 ± 0.4 | −2.4 ± 0.1 | −3.8 ± 0.1 | 2.7 ± 1.4 | a | ||||
Bloat | Heart | 4.6 ± 0.8 | ab | 12.4 ± 0.3 | −26.3 ± 1.6 | 48.2 ± 1.1 | 3.9 ± 0.2 | −2.5 ± 0.0 | −3.9 ± 0.0 | 4.0 ± 0.8 | ab | ||||
Active | Heart | 6.2 ± 1.4 | b | 11.9 ± 0.8 | −25.5 ± 1.2 | 48.2 ± 1.3 | 4.1 ± 0.2 | −2.5 ± 0.1 | −3.9 ± 0.0 | 5.7 ± 1.4 | b | ||||
Fresh | Liver | 2.0 ± 1.1 | a | 10.2 ± 0.8 | −28.2 ± 1.1 | 48.1 ± 2.6 | a | 4.7 ± 0.2 | −2.3 ± 0.1 | −3.9 ± 0.1 | 1.5 ± 1.1 | a | |||
Bloat | Liver | 3.7 ± 1.2 | a | 9.6 ± 1.7 | −28.5 ± 1.9 | 51.6 ± 2.7 | ab | 5.6 ± 1.4 | −2.2 ± 0.2 | −3.9 ± 0.1 | 3.2 ± 1.2 | ab | |||
Active | Liver | 5.4 ± 1.1 | b | 8.4 ± 1.2 | −28.2 ± 1.7 | 54.9 ± 2.9 | b | 6.6 ± 1.0 | −2.1 ± 0.1 | −4.0 ± 0.1 | 4.8 ± 1.1 | b | |||
Fresh | Lungs | 2.3 ± 1.5 | a | 12.4 ± 0.5 | a | −26.6 ± 1.0 | 45.5 ± 2.6 | 3.7 ± 0.2 | a | −2.5 ± 0.0 | a | −3.8 ± 0.1 | 1.8 ± 1.5 | a | |
Bloat | Lungs | 3.7 ± 0.8 | ab | 12.8 ± 1.0 | b | −26.1 ± 1.5 | 46.8 ± 2.3 | 3.7 ± 0.3 | b | −2.5 ± 0.1 | b | −3.8 ± 0.0 | 3.1 ± 0.8 | ab | |
Active | Lungs | 5.3 ± 1.0 | b | 9.7 ± 0.6 | b | −26.3 ± 2.1 | 48.3 ± 2.1 | 5.0 ± 0.1 | b | −2.3 ± 0.1 | b | −3.9 ± 0.0 | 4.7 ± 1.0 | b | |
Fresh | Muscle | 2.7 ± 1.9 | a | 13.2 ± 1.2 | −25.9 ± 0.8 | 43.8 ± 0.8 | a | 3.3 ± 0.3 | a | −2.6 ± 0.1 | −3.8 ± 0.0 | 2.1 ± 1.9 | a | ||
Bloat | Muscle | 4.1 ± 0.6 | ab | 13.3 ± 0.6 | −25.4 ± 1.7 | 45.4 ± 0.8 | b | 3.4 ± 0.1 | ab | −2.6 ± 0.0 | −3.8 ± 0.0 | 3.6 ± 0.6 | ab | ||
Active | Muscle | 5.7 ± 0.8 | b | 12.9 ± 0.4 | −25.0 ± 1.2 | 46.7 ± 0.3 | c | 3.6 ± 0.1 | b | −2.6 ± 0.0 | −3.8 ± 0.0 | 5.2 ± 0.8 | b | ||
Bloat | Blowfly larvae | 6.9 | 9.6 | −25.7 | 42.8 | 4.5 | −2.3 | −3.8 | 6.4 | ||||||
Active | Blowfly larvae | 7.4 ± 0.5 | 8.2 ± 1.0 | −26.5 ± 1.4 | 48.0 ± 3.0 | 5.9 ± 1.0 | −2.1 ± 0.1 | −3.9 ± 0.1 | 6.8 ± 0.5 |
