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