BIOL 2903 Lecture 6: BIOL 2903-W-6
15 Feb 2018
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Document Summary
Hudson bay lowland-physiographic region- ecological region and tundra zone. Boreal forest lies on top of canadian shield physiographic region. Rivers-role in biodiversity of hudson bay lowland, provide opportunities for plants in the muskeg. Rivers > muskeg bc more nutrients, calcium for limestones. Exposes the limestone, big diversity of calcific plants. Indicator species- species that find plant/animal only there seasonally. Orchid that loves calcium- lady slipper- sparrows egg-indicator species for hudson bay lowland: willows- grow no bigger than shrubs- common group shrub borders- habitats for insects and birds,wolf-willow, never grow in. Trees- shrubs, ninebark-northern shrub that likes calcium, grows well near river edges. Animals/plant-mapped out where there found-range, range map muskeg-also called silverberry-northern likes calcium. Orange crowned warbler- northern thrive in this habitat. Popolars river edges decidious trees-river edges snowshoe hare- hbl, build habitats they will come seeds extracting seeds from cones-crossbills- white-winged crossbills seeds high number-white winged crossbills-rivers. Limits-farthest north they go northern range limit, south-southern range limit* distribution range.
