TUNDRA Ecology Keystone College Presented by Kim Sandor October 2011.

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Presentation transcript:

TUNDRA Ecology Keystone College Presented by Kim Sandor October 2011

OVERVIEW: Treeless regions Cold & windy Short growing season 2 types:  Arctic Tundra  Alpine Tundra

REGION:

CLIMATE: Arctic Tundra  Average temp. = winter -30 degrees F, summer degrees F  Summer season days w/24 hours of sunshine  Yearly precipitation 6-10 in.  Permafrost layer, ponds, streams, snow

CLIMATE: (cont.) Alpine Tundra  Summer season – 180 days  High altitudes/above treeline  Well drained soil

VEGETATION: Low shrubs Sedges Mosses Grasses Lichen Flowers Short for less vulnerability to wind Shallow roots to pull moisture from layer of soil above permafrost

VEGETATION:

ANIMALS: Caribou Arctic Fox Wolves Polar Bears Ravens Terns Ptarmigan Musk Ox Bear Lemming Snowy Owl Sheep Mountain Goats Migratory Birds

ANIMALS:

THREATS: Gas/Oil Exploration & Extraction Global Warming Air Pollution Ozone Depletion Pesticides

THREATS:

WORKS CITED: Photos from National Geographic Website & my own photos Information from National Geographic Website & University of CA Museum of Paleontology