Table A1.

Mass requirements and analysis mechanisms for δ¹⁸O analysis of modern tissue samples. Notice the small sample size required for analysis when compared with the other lesser-used intrinsic marking techniques. Additionally, notice the differences in sample size required for calciferous tissues when compared with the others. “NR” signifies information that was not reported in the literature source.

Study Species	Common Name	Tissue Sample	Mass of Sample (mg)	Analysis Mechanism	Reference
Passer domesticus L.	House sparrow	Blood (plasma)	0.1–0.2	TC-EA-IRMS	[80]
Cortunix japonica	Japanese quail	Blood (plasma)	0.14 ± 0.03	CF-IRMS	[81]
Passer domesticus L.	House sparrow	Blood (RBC)	0.1–0.2	TC-EA-IRMS	[80]
Cortunix japonica	Japanese quail	Blood (RBC)	0.14 ± 0.03	CF-IRMS	[81]
Cortunix japonica	Japanese quail	Body water	0.14 ± 0.03	CF-IRMS	[81]
Falco sparverius	American Kestrel	Feather	NR	CF-IRMS	[79]
Passer domesticus L.	House sparrow	Feather	0.1–0.2	TC-EA-IRMS	[80]
Cortunix japonica	Japanese quail	Feather	0.14 ± 0.03	CF-IRMS	[81]
several species of insectivorous passerines	Passerines	Feather	0.350 ± 0.02	HTC-CF-IRMS	[82]
Microtus californicus	California vole	Fur	0.30–0.35	EA-CF-IRMS	[78]
Cortunix japonica	Japanese quail	Intestine	0.14 ± 0.03	CF-IRMS	[81]
Cortunix japonica	Japanese quail	Liver	0.14 ± 0.03	CF-IRMS	[81]
Cortunix japonica	Japanese quail	Muscle	0.14 ± 0.03	CF-IRMS	[81]
Rangifer tarandus granti	Alaskan caribou	Tooth enamel	5.0	CF-IRMS	[47]
Bison bison bison	Bison	Tooth enamel	3.0–4.0	CF-IRMS	[76]
Rangifer tarandus	Caribou	Tooth enamel	1.0–5.0	CF-IRMS	[48]
Equus cedralensis, E. conversidens, E. mexicanus	Fossil horses	Tooth enamel	NR	GC/IRMS	[77]