Phytomass ± s.e (g m-2)
		June 6th to June 11th				June 18th - June 25th				July 2nd - July 10th				July 15th - July 26th				July 29th - Aug. 6th				Aug. 13th - Aug. 20th
Forb*
	MATa	0.0	±	0.0		1.3	±	0.8		1.1	±	0.4		2.9	±	1.2		3.8	±	2.8		3.2	±	1.3
	MNTb	3.6	±	1.2		4.5	±	1.1		14.1	±	3.9		14.7	±	7.3		8.7	±	1.7		6.0	±	1.9
	MTa	0.0	±	0.0		0.0	±	0.0		0.0	±	0.0		0.0	±	0.0		0.0	±	0.0		0.0	±	0.0
	STb	2.9	±	1.3		4.8	±	0.9		10.3	±	2.7		21.7	±	4.3		7.5	±	1.3		5.9	±	1.0
Graminoid
	MATa	10.2	±	3.1		88.5	±	27.8		71.7	±	12.7		90.6	±	16.0		78.3	±	17.3		61.2	±	13.2
	MNTb	7.1	±	1.1		24.3	±	4.0		24.0	±	2.6		39.1	±	9.0		25.9	±	2.5		16.8	±	3.3
	MTa	59.7	±	12.6		75.6	±	9.2		87.2	±	12.2		114.3	±	10.2		104.0	±	14.8		81.4	±	11.8
	STb	27.9	±	17.3		21.4	±	10.4		17.5	±	5.9		34.1	±	10.4		51.2	±	13.1		32.2	±	12.8
Horsetail
	MATa	0.0	±	0.0		0.0	±	0.0		0.0	±	0.0		0.0	±	0.0		0.0	±	0.0		0.0	±	0.0
	MNTb	9.4	±	4.0		16.8	±	4.1		27.2	±	8.3		17.5	±	4.4		12.1	±	2.3		17.2	±	3.0
	MTa	0.0	±	0.0		2.2	±	2.2		0.0	±	0.0		0.0	±	0.0		0.0	±	0.0		0.0	±	0.0
	STa	0.0	±	0.0		0.0	±	0.0		0.0	±	0.0		0.0	±	0.0		0.0	±	0.0		0.0	±	0.0
Lichen
	MATa	19.0	±	8.0		28.4	±	9.8		46.4	±	14.4		30.6	±	8.4		43.5	±	30.7		56.5	±	29.8
	MNTab	19.3	±	6.1		14.6	±	5.7		28.5	±	8.9		4.7	±	2.7		31.1	±	9.1		90.4	±	23.1
	MTab	34.3	±	11.6		18.6	±	4.1		15.1	±	3.8		24.4	±	4.3		26.7	±	6.7		15.8	±	6.6
	STb	8.4	±	4.5		13.9	±	9.7		8.9	±	4.2		29.6	±	20.8		21.4	±	7.7		16.4	±	12.3
Moss
	MATa	111.5	±	32.9		214.3	±	50.4		111.2	±	43.1		145.1	±	29.1		229.1	±	53.2		226.0	±	64.0
	MNTb	345.8	±	55.8		440.5	±	45.4		618.7	±	47.2		414.8	±	78.0		513.9	±	44.8		436.4	±	47.9
	MTc	368.3	±	42.1		338.9	±	74.7		155.5	±	23.0		272.1	±	32.4		448.0	±	48.3		426.9	±	59.9
	STc	269.3	±	35.5		252.2	±	58.7		371.1	±	30.4		265.7	±	28.3		350.1	±	48.0		400.6	±	60.2
Deciduous Woody Material
	MATa	50.8	±	12.1		134.3	±	33.3		58.5	±	16.0		97.9	±	16.8		141.9	±	17.8		143.8	±	30.1
	MNTb	2.9	±	1.0		5.7	±	1.3		6.3	±	3.3		7.2	±	2.3		11.4	±	2.7		23.5	±	3.8
	MTb	6.7	±	2.4		9.1	±	2.8		6.4	±	1.8		5.0	±	1.4		8.9	±	2.2		9.7	±	3.7
	STc	483.8	±	142.1		512.8	±	77.7		711.3	±	136.1		537.2	±	77.2		527.8	±	79.6		565.8	±	90.5
Deciduous Foliar Material
	MATa	0.1	±	0.1		19.3	±	8.3		19.1	±	3.8		29.5	±	4.0		29.1	±	5.7		23.4	±	4.8
	MNTa	2.7	±	0.7		14.8	±	2.3		10.3	±	4.3		13.1	±	2.5		13.6	±	2.5		11.9	±	1.9
	MTa	0.2	±	0.1		8.7	±	2.0		11.8	±	1.4		11.8	±	1.0		13.8	±	1.9		5.9	±	2.0
	STb	0.5	±	0.3		87.1	±	10.9		125.1	±	17.7		109.6	±	16.6		71.1	±	12.9		16.8	±	5.1
Evergreen Woody Material
	MATa	42.9	±	7.8		61.5	±	8.7		47.4	±	9.2		79.3	±	9.7		72.2	±	16.0		68.9	±	11.8
	MNTb	0.0	±	0.0		0.0	±	0.0		10.4	±	3.7		3.1	±	1.4		19.2	±	3.6		36.7	±	5.8
	MTc	52.4	±	7.9		37.1	±	4.2		38.2	±	3.9		55.3	±	7.0		50.3	±	9.0		42.7	±	6.1
	STb	2.3	±	1.6		1.3	±	0.9		7.0	±	5.3		8.8	±	8.6		4.4	±	2.7		3.4	±	2.3
Evergreen Foliar Material
	MATa	22.4	±	5.4		116.6	±	16.3		86.5	±	10.7		98.9	±	10.1		123.7	±	37.0		114.5	±	15.9
	MNTb	25.5	±	8.6		31.9	±	5.9		34.0	±	12.5		59.7	±	9.5		22.1	±	4.7		32.9	±	7.7
	MTb	40.5	±	5.0		31.7	±	5.8		45.3	±	5.9		52.7	±	5.3		51.4	±	6.9		37.6	±	5.0
	STc	1.9	±	1.9		0.4	±	0.3		4.6	±	4.3		8.3	±	8.0		3.9	±	2.8		7.1	±	4.1
Shrub Total
	MATa	116.2	±	17.8		331.8	±	48.2		211.5	±	27.0		305.6	±	24.8		367.0	±	50.4		350.5	±	47.0
	MNTb	31.1	±	9.5		52.4	±	6.9		60.9	±	15.6		83.1	±	12.1		66.3	±	5.9		105.0	±	12.8
	MTb	99.9	±	8.7		86.6	±	4.5		101.8	±	7.8		124.8	±	11.5		124.3	±	16.0		95.9	±	10.2
	STc	488.4	±	141.0		601.6	±	86.0		848.1	±	146.0		663.8	±	80.4		607.2	±	89.3		593.0	±	89.2
Total
	MATa	256.9	±	34.1		664.2	±	72.3		441.8	±	54.3		574.7	±	42.5		721.6	±	71.3		697.2	±	83.3
	MNTa	416.2	±	54.8		553.0	±	46.1		773.4	±	52.7		573.9	±	88.8		658.0	±	44.5		671.8	±	43.5
	MTa	562.2	±	35.8		522.0	±	68.2		359.6	±	19.2		535.6	±	38.7		703.0	±	39.2		619.9	±	52.5
	STb	796.9	±	142.0		893.9	±	72.2		1255.9	±	122.8		1014.9	±	89.5		1037.4	±	95.3		1048.1	±	106.8
Standing Dead
	MATa	161.5	±	49.4		291.3	±	75.4		207.0	±	68.2		264.4	±	47.6		217.0	±	58.8		170.2	±	36.6
	MNTb	91.7	±	10.1		96.1	±	10.9		75.7	±	11.6		73.3	±	18.1		153.4	±	29.5		127.0	±	12.8
	MTa	246.7	±	40.3		170.0	±	29.0		154.3	±	16.8		219.2	±	29.5		177.7	±	25.5		237.9	±	57.5
	STb	119.4	±	14.0		108.9	±	22.7		79.8	±	13.0		75.7	±	9.7		158.2	±	31.8		166.0	±	20.2
	*Seasonal trends of specific phytomass components with different lower case letters (a,b,c) among tundra vegetation types are significantly different,
	Repeated Measures GLM (p < 0.05)