Table 2.

Contingency table of sample sizes for each tissue type by body size and ‐thermy combinations for δ ¹⁵N

	Blood	Liver	Muscle	Other	Plasma	Whole	Total
(a) Body size
L (1–4000 kg)	7	0	1	1	7	0	16
M (1 g–1 kg)	5	4	4	5	0	2	20
S (0–1 g)	0	0	1	3	0	11	15
Total	12	4	6	9	7	13	51
(b) –thermy
Ectothermic	1	3	4	4	0	13	25
Endothermic	11	1	2	5	7	0	26
Total	12	4	6	9	7	13	51