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Tahlisa Brougham Lauren Bauschard Alexandra Szczupak

Tahlisa Brougham Lauren Bauschard Alexandra Szczupak. Abiotic Features. Abiotic Features Continued…. Average winter temp- below 27°F, with a lowest temp of –65° and highest temp of 30°

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Tahlisa Brougham Lauren Bauschard Alexandra Szczupak

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  1. Tahlisa Brougham Lauren Bauschard Alexandra Szczupak

  2. Abiotic Features

  3. Abiotic Features Continued… • Average winter temp- below 27°F, with a lowest temp of –65° and highest temp of 30° • Average summer temp- above 50° to about 70° with a lowest temp of 20°. Highest temp recorded in taiga= 104° •  Average temp for half the year is below freezing • 12-33 inches (30-85 cm) most falling as rain in summertime. • That’s like half of the precipitation we get here, in a temperate deciduous forest • The soil is thin and poor in nutrients. It is very acidic. • Soil type- Podzol soil= has acidic layer of humus made of slowly decomposing coniferous litter

  4. Biotic Features

  5. Biotic Features Continued…

  6. Examples of Symbiotic Relationships Between Taiga Organisms (Parasitism) • Parasitism: one organism derives benefit at the expense of the other. + - • Ex: relationship between brainworm and caribou.Thebrainworm eats the brain of the caribou. The caribou loses control of its body and dies.

  7. Examples of Symbiotic Relationships Between Taiga Organisms (Mutualism) • Mutualism: when both species benefit + + • Ex: relationship between moss and redwood tree. The tree gives the moss a place to live. The moss grows on the tree and protectsit.

  8. Examples of Symbiotic Relationships Between Taiga Organisms(Commensalism) • Commensalism: one species is neither harmed nor benefitted. + 0 • Ex: relationship between a raven and the pine tree. It’s nesting in the tree provides a place for the raven to live, and the raven neither hurts nor helps the tree.

  9. 4thTrophic Level= 3rd order heterotroph 3rd Trophic Level=2nd order heterotrophs Decomposers 2ndTrophic level=1st order heterotroph 1stTrophic level= photosynthetic autotrophs

  10. Vegetation Moose Beaver Songbirds Small Rodent Snowshoe Hare Insects Marte Fox Fishe Owls Lynx Black Bears Gray Wolf Decomposers

  11. Examples of the water cycles in the Taiga.. • Much of the taiga used to be covered in glaciers. The glaciers have melted since and left depressions in the landscape. Because the taiga receives a moderate amount of rain, these depressions are able to fill up and become bogs and lakes. In the summertime, they are great places for the breeding of insects. Many birds then visit the wetlands to prey on the insects. • The covering of snow that blankets the ground during winter months keeps the ground warm enough to prevent it from freezing. The forest is able to keep growing and the small animals that would otherwise freeze to death are protected. ocean evaporation lakes precipitation condensation groundwater streams

  12. Examples of the Carbon Cycles in the Taiga… • Carbon dioxide gets absorbed by the bogs and stored there. There is an estimated 25% of Earth’s carbon dioxide being stored in Canada’s taiga. The storage of carbon dioxide helps to work against all the greenhouse gases put into the atmosphere by humans. Atmosphere Autotroph Photosynthesis C12H12O6 Waste CO2 Heterotrophs consume the energy (Carbohydrates) Returning nutrients Death/ Decay Soil=fuel =nutrients

  13. Examples of Nitrogen Cycle in the Taiga… • The nitrogen cycle in the taiga is pretty much exclusive to the forest floor. It does not take much nitrogen from the atmosphere. Most of the nitrogen is recycled through the soil-microbe-plant system. In the taiga the lacking of nitrogen limits the growth of trees Usable form which autotrophs need (performed by bacteria) Excess removed as urine/ uric acid/ urea Consumed by heterotroph (amino acids for building up protein) DNA

  14. Limiting Factors in the Taiga • Wildfires • Deforestation • Earthquakes • Extreme Temperatures • Drastic decrease in producers during winter months.

  15. Succession Forest fires are very common in the taiga. It is easy to find small areas of all different successional stages. Disturbed areas take about 300 years to get back to their climax community. The successional steps are as follows:

  16. Canadian Lynx Adaptations: • Eyes provide excellent vision for night. • Feet have fur covered pads so they are silent in the snow when going after prey. Animals they compete with:They compete with the coyote for food (snowshoe hare) and shelter. Niches:They live on small rocks near fallen trees by small animals homes, they go there at night so when the small animal wakes up they can attack.

  17. River Otter

  18. Balsam Fur(medium sized evergreen tree)

  19. Bunchberry Dogwood

  20. Human needs and behaviors interfering with the natural biodiversity.

  21. Deforestation of the Taiga

  22. Organization Protecting the Taiga • The main objective for Greenpeace’s work is to push for reasonable forest management profitable for the country in general and preserving nature and natural values for future generations. • In spring 2002, Greenpeace Russia launched the Kids for Forest Project aimed at reforestation in central and southern regions of European Russia and engaging school children with nature by planting trees on their land. • Greenpeace exists because this fragile earth deserves a voice. It needs solutions. It needs change. It needs action.

  23. Sources • http://www.tqnyc.org/NYC063000/Taiga%20Climate.htm • http://www.blueplanetbiomes.org/taiga.htm • http://mbgnet.net/sets/taiga/facts.htm • http://www.nceas.ucsb.edu/nceas-web/kids-sp/biomes/taiga.htm • http://www.runet.edu/~swoodwar/CLASSES/GEOG235/biomes/taiga/taiga.html • http://ths.sps.lane.edu/biomes/coniferous3/coniferous3.html#health%20issues • http://wilds.mb.ca/taiga/tbsfaq.html • http://library.thinkquest.org/11353/text/ccforest.htm • http://mrmazzasapbiology.tripod.com/id1.html • http://www.botany.wisc.edu/courses/botany_422/Lecture/Lect13BorForTundra.html • http://nhs.needham.k12.ma.us/cur/Bio96_97/P5/Taiga/Biome-Taiga.html • http://nhs.needham.k12.ma.us/cur/bio_99/p1/ek_ds_p1/taiga_ds_ek.htm • http://www.hww.ca/hww2.asp?id=85 • http://www.owc.org.mn/econet/html/commensalism.htm • http://nhs.needham.k12.ma.us/cur/Bio96_97/P5/Taiga/Biome-Taiga.html • http://www.pc.gc.ca/apprendre-learn/prof/itm2-crp-trc/pdf/pukaskwaex_e.pdf • http://www.wilds.mb.ca/taiga/tbsfoodw.gif • http://www.cotf.edu/ete/modules/msese/earthsysflr/taiga.html • http://www.nceas.ucsb.edu/nceas-web/kids-sp/biomes/taiga.htm • http://www.canadiangeographic.ca/Atlas/themes.aspx?id=artic&sub=artic_basics_wetlands&lang=En • http://www.owc.org.mn/econet/html/taiga.htm • http://www.centraliahs.org/personnel/teachers_faculty/science/becker/biome%20web%20page/taiga.htm • http://cat.inist.fr/?aModele=afficheN&cpsidt=16389223 • http://www.nature.com/nature/journal/v419/n6910/full/nature01051.html • http://www.greenpeace.org/russia/en/campaigns/forests • http://www.ri.net/schools/WestWarwick/manateeproject/Taiga/pands.htm • http://www.american.edu/TED/TAIGA.HTM • http://www.blueplanetbiomes.org/?taiga_plant_page.htm • http://www.fairmountwaterworks.com/river_otter_sighting.php • http://plants.usda.gov/sava/profile?symbol=cocA13 • http://www.mbgnet.net/sets/taiga/index.htm

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