Table 1. List of vegetation communities and microsites sampled in 1984 and 1985 Plot No. Plant Community Microsite SW-1 Moist Carex bigelowii, Salix planifolia ssp. pulchra, Vaccinium Inter-water-track area uliginosum, Sphagnum rubellum, Hylocomium splendens sedge, dwarf-shrub tundra SW-2 Wet Salix planifolia ssp. pulchra, Eriophorum angustifolium, Well developed water track Drepanocladus uncinatus low-shrub, sedge tundra SW-3 Moist Eriophorum vaginatum, Carex bigelowii, Salix planifolia Inter-water-track area ssp. pulchra, Ledum palustre ssp. decumbens, Betula nana, Hylocomium splendens, Aulacomnium turgidum tussock- sedge, dwarf-shrub tundra SW-4a Wet Eriophorum vaginatum, Carex bigelowii, Salix planifolia ssp. Weakly developed water track pulchra, Drepanocladus uncinatus tussock-sedge, dwarf-shrub tundra SW-4b Moist Salix planifolia ssp. pulchra, Vaccinium uliginosum, Carex Margin of water tracks bigelowii, Sphagnum rubellum, Aulacomnium palustre low- shrub tundra SW-5 Wet Betula nana, Salix planifolia ssp. pulchra, Carex bigelowii, Weakly defined water track Hylocomium splendens, very little Sphagnum spp. low-shrub tundra SW-6 Moist Carex bigelowii, Betula nana, Salix planifolia ssp. pulchra, Inter-water-track site with weakly Ledum palustre ssp. decumbens, Hylocomium splendens, developed solifluction features Sphagnum ssp. sedge, dwarf-shrub tundra SW-7 Wet Salix planifolia ssp. pulchra, Carex bigelowii, Eriophorum Weakly defined water track vaginatum, Rubus chamaemorus, Hylocomium splendens, Sphagnum ssp. low-shrub tundra SW-8 Moist Carex bigelowii, Betula nana, Ledum palustre ssp. decumbens, Inter-water-track area Sphagnum spp. sedge, dwarf-shrub tundra SW-9 Dry Arctous alpina, Salix phlebophylla, Cetraria nivalis, Dry rocky till Sphaerophorus globosus, dwarf-shrub, fruticose-lichen tundra SW-10 Moist Betula nana, Salix planifolia ssp. pulchra, Carex bigelowii, Margin of water track Sphagnum spp. Low-shrub tundra SW-11 Wet Salix planifolia ssp. pulchra, Eriophorum angustifolium. Betula Well developed water track nana, Sphagnum spp., low-shrub, sedge tundra SW-12 Moist Carex bigelowii, Betula nana, Salix planifolia ssp. pulchra, Inter-water-track area Eriophorum vaginatum, Sphagnum spp., Hylocomium splendens, sedge, dwarf-shrub tundra SW-13 Moist Betula nana, Salix planifolia ssp. pulchra, Carex bigelowii, Inter-water-track area, footslope of west- Sphagnum spp., Hylocomium splendens low-shrub, sedge facing hill tundra SW-14 Wet Carex aquatilis, Rubus chamaemorus, Salix fuscescens, Flat creek margin Sphagnum spp., sedge, dwarf-shrub, moss tundra SW-15 Moist Betula nana, Rubus chamaemorus, Salix fuscescens, Slightly raised streamside site Sphagnum spp., Aulacomnium turgidum, dwarf-shrub, moss tundra SW-16 Aquatic Carex aquatilis, Eriophorum angustifolium, sedge tundra Stream channel SW-17 Moist Betula nana, Eriophorum vaginatum, Rubus chamaemorus, Inter-water-track area, footslope of west- Sphagnum spp., tussock-sedge, dwarf-shrub, moss tundra facing hill Table 1. List of vegetation communities and microsites sampled in 1984 and 1985 Plot No. Plant Community Microsite SW-18 Wet Carex aquatilis, Salix fuscescens, Salix chamissonis, Carex Wet meadow with strangmoor rariflora, Sphagnumspp., sedge tundra SW-19 Wet Eriophorum scheuchzeri, Salix fuscescens, Sphagnum lenense, Wet meadow sedge, dwarf-shrub, moss tundra SW-20 Wet Carex rotundata, Eriophorum scheuchzeri, Salix fuscescens, Wet meadow Sphagnum lenense sedge, dwarf-shrub, moss tundra SW-21a Wet Carex rotundata, C. rariflora, Eriophorum scheuchzeri, Inter-hummock in wet meadow with Sphagnum imbricatum sedge tundra strangmoor SW-21b Moist Betula nana, Vaccinium uliginosum, Sphagnum lenense dwarf- Hummocks in wet meadow with shrub tundra strangmoor SW-22a Wet Carex rariflora, C. rotundata, Eriophorum scheuchzeri, Inter-hummock areas in wet meadow Sphagnum lindbergii sedge tundra SW-22b Wet Eriophorum scheuchzeri, Andromeda polifolia, Salix fuscescens, Hummocks in wet meadow Sphagnum lenense sedge, dwarf-shrub tundra SW-23 Aquatic Carex aquatilis, C. rotundata, sedge tundra Stream channel SW-24 Moist Betula nana, Rubus chamaemorus, Ledum palustre ssp. Palsa decumbens, Dicranum elongatum, Sphagnum spp., Cladonia spp. dwarf-shrub, fruticose-lichen tundra SW-25a Moist Carex rariflora, Betula nana, Salix fuscescens, Sphagnum spp. Hummock in strangmoor area sedge, dwarf-shrub tundra SW-25b Wet Carex rariflora, Eriophorum scheuchzeri, C. rotundata, Inter-hummock sites in strangmoor area Sphagnum imbricatum sedge tundra SW-26 Dry Cassiope tetragona, Vaccinium uliginosum, Carex bigelowii, Dry stone stripe with frost scars on Tortula ruralis, Dicranum elongatum, Cetraria nivalis, shoulder of hill Cladonia spp. fruticose lichen tundra SW-27 Moist Carex bigelowii, Salix planifolia ssp. pulchra, S. reticulata, Wetter area between stone stripes Cassiope tetragona, Hylocomium splendens, Dicranum fuscescens sedge, dwarf-shrub tundra SW-28 Dry Arctous alpina, Salix phlebophylla, Diapensia lapponica, Rocky till deposit on hill crest Dicranum elongatum, Alectoria nigricans, Cetraria nivalis dwarf-shrub, fruticose-lichen tundra SW-29a Moist Betula nana, Ledum palustre ssp. decumbens, Calamagrostis Inter-frost-scar areas on stone stripe inexpansa, Salix phlebophylla, Dicranum fuscescens, Cladonia rangiferina dwarf-shrub, grass, fruticose-lichen tundra SW-29b Dry Arctous alpina, Luzula arctica, Polytrichum strictum, Alectoria Frost scars on stone stripe ochroleuca barren SW-30a Moist Betula nana, Salix phlebophylla, Cassiope tetragona, Carex Inter-frost-scar areas on stone stripe bigelowii, Dicranum elongatum, Cladonia rangiferina dwarf- shrub, fruticose-lichen tundra SW-30b Dry Salix phlebophylla, Luzula arctica, Diapensia lapponica, Frost scars on stone stripe Rhacomitrium lanuginosum, Alectoria ochroleuca barren SW-31 Moist Carex bigelowii, Salix planifolia ssp. pulchra, Petasites Wetter area between stone stripes frigidus, Dicranum sp., Hylocomium splendens sedge, dwarf- shrub tundra SW-32a Moist Cassiope tetragona, Salix phlebophylla, Dicranum elongatum, Inter-frost-scar areas on stone stripe Cladonia rangiferina dwarf-shrub, fruticose-lichen tundra Table 1. List of vegetation communities and microsites sampled in 1984 and 1985 Plot No. Plant Community Microsite SW-32b Dry Salix phlebophylla, Luzula arctica barren Frost scars on stone stripe SW-33 Dry Dryas octopetala, Salix phlebophylla, Hierochloe alpina dwarf- Dry southwest-facing sandstone outcrop shrub tundra SW-34 Wet Salix planifolia ssp. pulchra, Eriophorum angustifolium, Well developed water track Petasites frigidus, Drepanocladus uncinatus, Sphagnum spp. low-shrub, sedge tundra SW-35a Moist Salix planifolia ssp. pulchra, Carex bigelowii, Petasites Tops of weakly developed solifluction frigidus, Aulacomnium palustre, Sphagnum spp. low-shrub lobes in water track margin tundra SW-35b Wet Eriophorum angustifolium, Salix planifolia ssp. pulchra, Interhummock areas Aulacomnium palustre, Drepanocladus uncinatus, Sphagnum angustifolium, Sphagnum spp., Sedge, moss tundra SW-36a Wet Salix planifolia ssp. pulchra, Eriophorum angustifolium, Tops of solifluction hummocks in water Petasites frigidus, Hylocomium splendens, Aulacomnium track palustre, Sphagnum spp. low-shrub, sedge tundra SW-36b Wet Eriophorum angustifolium, Salix planifolia ssp. pulchra, Inter-hummock areas in water track Drepanocladus uncinatus, Sphagnum spp. sedge, low shrub tundra SW-37 Aquatic Sparganium hyperboreum, Hippuris vulgaris, Calliergon Pond in beaded stream sarmentosum forb marsh SW-38 Dry Arctous alpina, Vaccinium vitis-idaea, Dicranum elongatum, Rocky till, shoulder of hill Cetraria nivalis, Cornicularia divergens, Cladonia spp. dwarf- shrub, fruticose-lichen tundra SW-39 Dry Vaccinium vitis-idaea, Hierochloe alpina, Salix phlebophylla, Slight depression in dry till at crest of Dicranum elongatum, Cetraria nivalis, Cladonia spp. dwarf- hill shrub, fruticose-lichen tundra SW-40 Dry Cassiope tetragona, Carex microchaeta, Artemisia arctica, Snowbed area on east-facing slope Dicranum sp., Cladonia spp. dwarf-shrub, fruticose-lichen tundra SW-41 Dry Cassiope tetragona, Salix chamissonis, Carex microchaeta, Snowbed area on east-facing slope Hylocomium splendens, Cladonia spp., Cetraria spp. dwarf- shrub, fruticose-lichen tundra SW-42 Dry Dryas octopetala, Salix phlebophylla, Cornicularia divergens, Exposed sandstone outcrop Alectoria ochroleuca prostrate-shrub, fruticose-lichen tundra SW-43 Dry Salix phlebophylla, Vaccinium vitis-idaea, Arctous alpina, Dry till outcrop on ridge Diapensia lapponica, Cetraria nivalis, Sphaerophorus globosus, Cetraria cucullata prostrate-shrub, fruticose-lichen tundra SW-44a Dry Vaccinium vitis-idaea, Cassiope tetragona, Salix phlebophylla, Dry portion of stone-stripe complex Carex bigelowii, Dicranum elongatum, Cladonia rangiferina, Cetraria spp., Sphaerophorus globosus dwarf-shrub, fruticose- lichen tundra SW-44b Dry Cassiope tetragona, Salix phlebophylla, Luzula arctica, Frost scar on stone stripe Rhacomitrium lanuginosum barren SW-45 Moist Carex bigelowii, Salix planifolia ssp. pulchra, Betula nana, Moist part of stone-stripe complex Ledum palustre ssp. decumbens, Aulacomnium palustre, Sphagnum spp. sedge, dwarf-shrub tundra Table 1. List of vegetation communities and microsites sampled in 1984 and 1985 Plot No. Plant Community Microsite SW-46 Moist Betula nana, Rubus chamaemorus, Carex bigelowii, Footslope, inter-water-track Hylocomium splendens, Sphagnum spp. low-shrub, moss tundra SW-47 Wet Carex aquatilis, Salix chamissonis,