Table 2.

Metal levels (ppb, dry weight)(ng/g) in breast feathers of glaucous-winged gulls collected from 3 test sites on Amchitka

	Milrow	Long Shot	Cannikin	X2(p)
Adults	n=18	n=5	n=7
Arsenic	165±38.0	129±25.5	81.5±22.8	1.0 (NS)
	39.3	120	31.9
	(A)	(A)	(A)
Cadmium	43.3±6.3	40.6±11.2	56.6±6.3	1.1 (NS)
	31.0	31.5	53.6
	(A)	(A)	(A)
Chromium	554±259	95.6±21.0	107±23.6	12.3 (0.002)
	287	80.6	90.7
	(A)	(B)	(B)
Lead	760±221	483±282	307±85.3	2.1 (NS)
	458	206	83.8
	(A)	(A)	(A)
Manganese	528±59.8	570±292	1040±328	1.5 (NS)
	475	81.2	732
	(A,B)	(B)	(A)
Mercury	3960±718	3740±1350	4350±1170	0.1 (NS)
	2490	2830	3190
	(A)	(A)	(A)
Selenium	1010±110	850±215	987±106	0.6 (NS)
	842	727	952
	(A)	(A)	(A)
Chicks	n=6	n=7	n=8
Arsenic	59.7±32.1	250±79.5	94.0 ±41.7	4.2 (NS)
	6.6	124	13.8
	(A)	(A)	(A)
Cadmium	43.3±18.4	47.3±13.4	45.3±12.0	0.3 (NS)
	29.7	36.3	33.6
	(A)	(A)	(A)
Chromium	481±168	864±207	791±343	1.7 (NS)
	344	643	177
	(A)	(A)	(A)
Lead	644±447	285±94.8	258±153	1.3 (NS)
	87.6	74.8	12.2
	(A)	(A)	(A)
Manganese	1120±244	5390±2130	2510±840	4.6 (NS)
	991	3630	1450
	(A)	(A)	(A)
Mercury	1180±179	3480±389	1840±169	13.9 (0.0009)
	1100	3330	1780
	(C)	(A)	(B)
Selenium	1410±114	1120±253	1490±136	1.0 (NS)
	1380	934	1440
	(A)	(A)	(A)

Given are arithmetic means±SE (geometric means below) with Kruskal–Wallis Chi Square values and p values. Duncan values are given in parenthesis