1. TUNDRANIA By: Ana Pau Pedraza P.4

2. BIOTIC FACTORS

3. TOP LEVEL OF CONSUMERS Humans (Homo Sapiens)

4. PRODUCERS Caribou Moss (Cladonia rangiferina) Lichens (Trebouxia)

5. 1 st Level of Consumers Caribou (Rangifer tarandus) Artic Hares (Lepus arcticus)

6. 2 nd Level of Consumers Polar Bears (Ursus maritimus) Artic Wolves (Canis lupus arctos)

7. DECOMPOSERS Bacteria (eubacteria) Fungi (Basidiomycota)

8. SCAVENGER Artic Fox (Vulpes lagopus)

9. ORGANISMS IN TUNDRA Snowy Owls (Bubo scandiacus) Musk Ox (Ovibos moschatus)

10. ORGANISMS IN TUNDRA Brown Bear (Ursus arctos) Pikas (Ochotona)

11. ORGANISMS IN TUNDRA Harlequin Duck (Histrionicus histrionicus) Ermine (Mustela erminea)

12. ORGANISMS IN TUNDRA Tapeworms (Cestoda) Lemmings (Lemmus Lemmus)

13. Predator and Prey Brown Bear preys on the Caribous Artic Fox prey on Lemmings

14. COMPETITION Lemmings competes with the Pikas for food. VS

15. Symbiotic Relationships The relationship between algae and lichen is considered mutualism because the algae provides sugars for the lichen while the lichen provides a solid substrate for the algae to grow on.

16. Symbiotic Relationships The relationship between arctic fox and polar bear is considered commensalism because the arctic fox gets benefited by eating what’s left of the polar bear meal, and the polar bear isn't affected or harmed.

17. Symbiotic Relationships The relationship between tapeworms and caribou is considered parasitism because the tapeworms get benefited by getting shelter and the caribou is harmed by the tape worms The relationship between Artic fox and lemmings is also considered parasitism because the artic fox is benefited by eating the lemmings but the lemmings in being harmed by dying. The tapeworms are the parasite and the artic fox is the host because it is the one being harmed.

18. Abiotic Factors Day Length: 20 hours Year Length: 300 days Precipitation: 6-10inches a year Temperature: Winter: -34°c Summer: 3-12°c Sunlight: About 15 minutes every day in summer and 5 minutes in winter Soil: Mostly snowy, the ground is full of snow and frozen

19. SEASONS Tundrania has 2 seasons, summer that last 100 days and winter that last 200 days. Summer isn't hot in Tundrania, the hottest it can get is up to 12°c and in winter can get to -34°c

20. LANDFORMS Tundrania has mountains, lakes and plains.

21. Bibliography http://www.tundraanimals.net http://www.blueplanetbiomes.org/tundra_animal_page.htm http://biomesfirst.wikispaces.com/Tundra+Food+Web http://googleimages.com http://www.blueplanetbiomes.org/tundra_climate_page.htm http://en.wikipedia.org/wiki/Tundra http://www.blueplanetbiomes.org/tundra.htm http://www.blueplanetbiomes.org/tundra_plant_page.htm http://www.buzzle.com/articles/symbiotic-relationships-in-the-tundra.html