Table 2.

Dominant Understory Species by importance values on TMI, HNI, and BI. These species are listed by decreasing importance value in [] for each island and sampling year.

	2011	2001	1991	1978
TMI	Aralia nudicaulis [22.6]	Aralia nudicaulis	Aralia nudicaulis	Acer pensylvanicum
	Maianthemum canadense [14.1]	Fagus grandifolia	Gaylussacia baccata	Aralia nudicaulis
	Fagus grandifolia [12.9]	Gaylussacia baccata	Maianthemum canadense	Gaylussacia baccata
	Tsuga canadensis [12.0] Gaylussacia baccata [11.9]	Hamamelis virginiana	Pteridium aquilinum	Pteridium aquilinum
		Pteridium aquilinum	Vaccinium angustifolium	Vaccinium angustifolium
Hawk’s	Gaultheria procumbens [50]	Gaylussacia baccata	Gaylussacia baccata	Aralia nudicaulis
Nest	Gaylussacia baccata [29.0]	Pinus strobus	Kalmia angustifolia	Gaylussacia baccata
	Tsuga Canadensis [19]	Vaccinium angustifolium	Vaccinium angustifolium	Vaccinium corymbosum
Blueberry	Gaylussacia baccata [39.4]	Gaylussacia baccata	Gaylussacia baccata	Cephalanthus occidentalus
	Vaccinium fuscatum [21.3]	Ilex verticillata	Myrica gale	Vaccinium angustifolium
	Vaccinium angustifolium [16.4]	Myrica gale	Vaccinium angustifolium	Vaccinium corymbosum
All Islands	Aralia nudicaulis [26]	Gaylussacia baccata [36]	Aralia nudicaulis [27]	Aralia nudicaulis [40]
	Gaylussacia baccata [24]	Aralia nudicaulis [25]	Gaylussacia baccata [27]	Pteridium aquilinum [18]
	Tsuga canadensis [18]	Fagus grandifolia [14]	Maianthemum canadense [17]	Vaccinium angustifolium [16]
	Maianthemum canadense [17]	Pteridium aquilinum [13]	Vaccinium angustifolium	Gaylussacia baccata
	Gaultheria procumbens [15]		[17]	[14]
		Tsuga canadensis [12]	Pteridium aquilinum [12]	Vaccinium corymbosum
				[12]