White-tailed ptarmigan




Дата канвертавання25.04.2016
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Appendix 1. Common dwarf shrub, woody shrub, forb and lichen species associated with rock, white-tailed and willow ptarmigan nesting habitat in the southern Yukon Territory. Values in brackets show the average percent occurrence across plots estimated by summing across all plots and dividing by the total number of plots. However, many uncommon species are not uniformly present across plots. For woody shrubs, dwarf shrubs and lichens, we include the species or genus if their average percentage was greater than 0.2. For forbs, we show the 10 most common species around the nests of each.

White-tailed ptarmigan

Rock ptarmigan

Willow Ptarmigan

Woody shrubs*

Salix pulchra (0.86)

Salix pulchra* (8.6)

Betula glandulosa (45.21)

Salix glauca (0.60)

Betula glandulosa (0.63)

Salix pulchra (24.43)

Potentilla fruticosa (0.22)

Salix glauca (0.46)

Salix glauca (3.64)

Dwarf shrubs

Dryas octopetala (13.81)

Dryas octopetala (6.85)

Vaccinium vitas-idaea (1.18)

Salix arctica (3.18)

Salix reticulata (6.52)

Salix reticulata (0.89)

Salix reticulata (2.69)

Salix polaris (1.49)

Empetrum nigrum (0.36)

Salix polaris (1.76)

Salix arctica (1.47)

Ledum decumbre (0.36)

Potentilla biflora (0.34)

Vaccinium uliginosum (0.47)

Vaccinium uliginosum (0.07)

Pyrola grandiflora (0.17)

Vaccinium vitas-idaea (0.41)

Salix arctica (0.04)

Vaccinium vitas-idaea (0.14)

Salix barclayi (0.35)




Potentilla hyparctica (0.13)

Pyrola grandiflora (0.21)




Potentilla fruticosa (0.10)

Potentilla biflora (0.11)




Forbs

Silene acaulis (0.62)

Artemisia arctica (1.12)

Petasites frigidus (1.39)

Artemisia arctica (0.43)

Polygonum bistorta (1.06)

Mertensia paniculata (0.71)

Saxifraga bronchialis (0.32)

Dodecatheon frigidum (0.75)

Artemisia arctica (0.29)

Parrya nudicaulis (0.26)

Petasites frigidus (0.70)

Polygomun bistorta (0.29)

Saxifraga davurica (0.23)

Anemone parviflora (0.45)

Valeria sitchensis (0.25)

Oxytropis nigrescens (0.22)

Valeriana sitchensis (0.23)

Polemonium acutiflorum (0.14)

Petasites frigidus (0.13)

Gentiana algida (0.21)

Anemone parviflora (0.07)

Anemone parviflora (0.12)

Castilleja hyperborea (0.20)

Cardamine purpurea (0.07)

Polygonum bistorta (0.11)

Silene acaulis (0.17)

Gentiana algida (0.07)

Lichens

Flavocetraria spp. (6.49)

Flavocetraria spp. (5.01)

Cladina spp. (0.82)

Cladina spp. (2.93)

Cladina spp. (1.52)

Flavocetraria spp. (0.68)

Stereocaulon spp. (1.30)

Stereocaulon spp. (1.17)

Peltigera spp. (0.54)

Thamnolia vermicularis (1.05)

Thamnolia vermicularis (0.69)

Dactylina arctica (0.21)

Dactylina arctica (0.31)

Dactylina arctica (0.64)

Cladonia spp. (0.18)

* likely includes hybrids with other Salix spp.






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