biome: tundra by: mariah hanson, hannah sanville and veronica yi blue 2, gray 2a, wise, 09/16/13
TRANSCRIPT
Region Of The World
• Continues across North America, Europe and Asia
• Cover 1/5 of the world’s surface
• Largest and northernmost Biome
Abiotic Factors
• Temperature range: -260C to 120C• Permafrost• 60 day growing season • Average yearly precipitation: <25cm• Soil
Abiotic Factors: Winter Climate
• Winter temperatures: -30 F in Artic Tundra's (North Pole)
• Coldest winters: Siberia, average winter temperatures: -40 F
• Has reached -93 F before.
• Mildest winters: Costal regions, average temperatures: 30 F
• Winter storms develop in the Aleutian Low and Icelandic Low
Abiotic Factors: Summer Climate
• Mild summers. Average temperatures: 45F
• Warmest summers occur in inland regions of Siberia, Alaska and Canada
• July temperatures there : 60 F
• Temperatures have been recorded in the 90’s F in those regions though
• Artic has rain and fog in summertime
• Short growing season because during the summer the Tundra doesn’t get a lot of rain
Abiotic Factors: Permafrost
• Permanent frozen layer of soil
• Surface above permafrost remains frozen all but 8 weeks of the year
• Prevents trees from growing
Abiotic Factors: Soil
• Slightly acidic
• Low nutrients due to cold temperatures
• Moist
• Thin topsoil over the permafrost
Biotic Factors: Animals
Mammals
• Caribou
• Musk Oxen
• Artic Foxes
• Lemmings
• Snowshoe Hare
Birds:
• Snowy Owls• Ducks• Geese• Cranes• Waterfowl• Predatory BirdsMusk Oxen
Canadian Goose
Biotic Factors: Closer Look At The Artic Fox
• Mammal• Diet: omnivore• Average life span: 3 to 6 years• Important adaptations to
survive in chilly climate. • Hardy animal, so it can survive
in the tundra's frigid temperatures
• Lives in burrows
Biotic Factor: Closer Look At The Snowy Owl
• Carnivore• Average life span: 9.5 years• Patient hunter• Breeds in Artic tundra• Preferred meal is lemmings• Diurnal: They hunt and are
active during day and night.
Biotic Factors: Endangered Animals
• Artic Fox
• Polar Bear
• Northern Leopard Frog
• Bull Trout
• Whooping Crane
• Peregrine Falcon
Peregrine Falcon
Northern Leopard Frog
Whooping Crane
Endangered Animals: Closer Look at The Polar Bear
• Mammal• Carnivore• Average life span: 25 to
30 years• Live in very cold climates• Very strong swimmers• May 2008 Polar bears
were determined endangered
Biotic Factors: Plants/Fungi
Plants• Grasses
• Sedges
• Mosses
• Dwarf woody plants
Fungi• Lichens
Lichens Moss
Biotic Factor: Closer Look At Lichens
• Reproduce asexually • Fungus• Unique due to not being a single
organism• Actually a combination of two
organisms• Most composed of fungal
filaments
Bibliography
• "Tundra Climate." Tundra Climate. N.p., n.d. Web. 15 Sept. 2013.
• "The Tundra Biome." The Tundra Biome. N.p., n.d. Web. 15 Sept. 2013.
• "Arctic Fox." National Geographic. N.p., n.d. Web. 15 Sept. 2013.
• "Snowy Owl." National Geographic. N.p., n.d. Web. 15 Sept. 2013.
• "Polar Bear." National Geographic. N.p., n.d. Web. 15 Sept. 2013.
• Book : Postlethwait, John H., and Janet L. Hopson. Modern Biology. Orlando: Holt, Rinehart and Winston, 2006. Print.