BIOL 2903 Lecture 3: Lecture 3 Natural History
15 Apr 2017
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Tundra: plants & animals - natural history of ontario (lecture 3) The tundra is very windy, because it is level and flat. It has the coldest wind-chill factor (coldest wind-chill in north america). The wind blows abrasive particles; clay and slit (the two smallest particles) deposits range from 5-75m thick. Tyrell sea, the water that collected on top of these deposits. The sea is gone today because the land rebounded (rised again). This water area now remains making a wet area known as the hudson bay lowlands. The sea stopped there because of the elevation from the canadian shield (highlands). Tundra is flat, poor drainage, ponds, and fresh water. This is good habitat for; northern diver ducks. This includes scaup and scoters (white wing scoter, surf scoter, black scoter). There is also a large number of geese; including canada goose, and snow. Geese (there are two forms the blue morph and white morph).
