Table 3 Summary data for inputs (water and soil) to all elephants at each of the five UK zoos (A, D, E = Loxodonta africana, B, C = Elephas maximus), samples were taken at the first visit. CRM data can be found in Supplementary Information Table 3.

	Water - based on estimated input of 200 litres per elephant per day						Soil - Dry Matter
Zoo		A	D	E	B	C	units	A	D	E	B	C
Species	units	L. africana			E. maximus			L. africana			E. maximus
Element	Number elephants (m/f)	4 (0/4)	4 (1/3)	2 (2/0)	4 (0/4)	7 (1/6)		4 (0/4)	4 (1/3)	2 (2/0)	4 (0/4)	7 (1/6)
Ca	g	4	22	18	11	22	mg/kg	3369	1742	8045	10044	3354
Mg	g	0.5	3.4	2.3	2.1	0.8		4194	1352	5272	14985	2398
Na	g	2.8	10.9	3.5	3.9	3.5		3206	2054	2171	3437	3992
P	mg	322	356	366	4200	4		1086	298	790	493	817
K	g	0.2	1.7	0.5	2.6	0.7		13323	9397	27705	24989	10771
Cu	mg	0.1	12	3	1.6	0.6		76	11	19	16	19
Fe	mg	3	0	15	20	11		23600	15565	33053	26721	27092
Mn	mg	0.0	0.1	2.2	13.0	0.8		595	152	1883	462	955
Se	mg	0.0	0.6	0.1	0.1	0.1		0.63	0.17	0.54	0.25	0.45
Zn	mg	1	2	144	6	109		101	36	191	91	81
As	mg	22	44	342	56	36		11	7	28	9	123
Cd	mg	2	2	32	6	2		2.0	0.1	1.4	0.2	0.4
Pb	mg	0	14	252	12	32		74	12	87	39	49
U	mg	2	138	81	88	48		1.7	0.9	2.5	1.6	1.8
V	mg	20	20	140	40	40		61	36	70	62	74

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