Limited impacts of extensive human land use on dominance, specialization, and biotic homogenization in boreal plant communities

Table 1 List of species ranked by occupancy for each disturbance class (given as percentages)

Rank	0 - 20%	20 - 40%	40 - 60%	60 - 80%	80 - 100%
1	Cornus canadensis	Populus tremuloides	Achillea millefolium	Equisetum arvense	Taraxacum officinale
2	Rhododendron groenlandicum	Galium boreale	Fragaria virginiana	Vicia americana	Achillea millefolium
3	Chamerion angustifolium	Cornus canadensis	Populus tremuloides	Rubus idaeus	Equisetum arvense
4	Vaccinium vitis-idaea	Equisetum arvense	Taraxacum officinale	Taraxacum officinale	Vicia americana
5	Calamagrostis canadensis	Rosa acicularis	Vicia americana	Populus tremuloides	Fragaria virginiana
6	Rosa acicularis	Calamagrostis canadensis	Equisetum arvense	Achillea millefolium	Galium boreale
7	Populus tremuloides	Chamerion angustifolium	Galium boreale	Fragaria virginiana	Populus balsamifera
8	Linnaea borealis	Fragaria virginiana	Picea glauca	Mertensia paniculata	Rosa acicularis
9	Petasites frigidus	Lathyrus ochroleucus	Populus balsamifera	Picea glauca	Rubus idaeus
10	Rubus pubescens	Mertensia paniculata	Chamerion angustifolium	Populus balsamifera	Populus tremuloides

Species listed represent the ten most “widespread” species in the Ranked Species Occupancy Curves of Figure 2(b).

ISSN: 1472-6785