Table 2.

Bufadienolides in juvenile Rhabdophis tigrinus from toad-rich Ishima Island, fed controlled diets

	Clutch 7 (N = 21)	Clutch 8 (N = 7)	Clutch 9 (N = 14)	Clutch 10 (N = 14)	Clutch 11 (N = 18)	Clutch 12 (N = 43)
Unfed and non-toad-fed	1, 2, 3, 5, 6/7, 8, 9, 10, 11 (n = 4)	2, 3, 5, 6/7, 8, 9, 10, 11, 12, 13, 17 (n = 4)	2, 3, 5, 6/7, 8, 9, 10, 11, 13, 17 (n = 3)	3, 5, 6/7, 8, 9, 10, 11 (n = 4)	2, 3, 5, 6/7, 8, 9, 10, 11, 17 (n = 8)	1, 2, 3, 5, 6/7, 8, 9, 10, 11, 12, 13, 17 (n = 7)
Toad-fed	2, 3, 5, 6/7, 8, 9, 10, 11, 13, 14, 17 (n = 4)	1, 2, 3, 5, 6/7, 8, 9, 10, 11, 13, 14, 15 (n = 2)	2, 3, 5, 6/7, 8, 9, 10, 11, 13, 14, 17 (n = 4)	3, 5, 6/7, 8, 9, 10, 11, 13, 14, 15, 17 (n = 4)	1, 2, 3, 5, 6/7, 8, 9, 10, 11, 12, 13, 14, 17 (n = 3)	1, 2, 3, 5, 6/7, 8, 9, 10, 11, 12, 13, 14, 17 (n = 4)

N represents the number of hatchlings per clutch; n indicates the number of individuals analyzed. Bufadienolides present in the majority of individuals per group are identified by compound numbers (see electronic supplementary material, Supporting Information Fig. S1b, for structures of compounds). The bufadienolide present in the largest quantity in the majority of individuals per group is underlined. Two bufadienolides were present in equally large quantities in toad-fed individuals in clutch 10.