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Renee Fridman

on 7 January 2013

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Transcript of Taiga

Elena Cramer
Renee Fridman The Taiga What is the Taiga? Species Interaction Animal:
Red Fox Water Cycle Biome Threat:
Forest Fires 1. Snow falls
(precipitation) Usually travel alone
Male and female will tend for their babies together
Do not travel in packs, very spread out Cause:
Lightning Biotic
Factors Food Web A.K.A Boreal Forest
Coniferous forests located all over the world Russia
Northern U.S.
Most of Canada Where is it located? Factors Producer:
Lichen Primary
Hare Secondary
Fox Tertiary
Lynx Food Chain Energy transfer from one species to the next through consumption Abiotic
Factors Variables within the environment Living factors within the biome Salmon River
Otter Gray Wolf Grizzy Bear Canadian
Lynx Red
Fox Lichen Snowshoe
Hare Elk Plants:
Lichen Moss-like plant
Can withstand below-freeing temperatures
Forest floor is acidic due to pine needles; little to no grass
Optimal conditions for lichens Dispersion Covers more than half of the Taiga floor
Spread out throughout all parts of the Taiga
Rest of floor covered with moss/ grasses Population
Dynamics Population: Growing
Fast reproduction rate
Can withstand harsh conditions
Reproduction rate outweighs other organisms' demand Reproduction: Asexual
Portions of the main body break off and form new colonies
Reproduce constantly Longevity
Live between 10-1000+ years
Almost all of the bodies reach maturity Limiting Factors Lack of other organisms/ weather conditions to spread the lichen
High competition for sunlight Density Independent Factor Density Dependent Factor: Space
Room for other organisms to grow
Other plants can't compete Air Pollution
The main body absorbs the pollution and cause the colony(s) die off Predator/Prey:
A relationship in which an animal (predator) feeds on a lower animal (prey) Mimicry
A similarity used for survival between a species and an object/ another species Parasitism
A relationship in which an organism (parasite) benefits at the expense off of another organism (host) Herbivore/Plant
A relationship in which an animal (herbivore) gets energy only from plants Mutualism
A relationship in which 2 different organisms collaborate and benefit off of each other Commensalism
A relationship in which one organism benefits off of another with no effect on the other 2. Snow melts and runs into springs/ oceans
(runoff) 3. The sun evaporates some of the water
(evaporation) 4. The evaporated water causes clouds to condense
(condensation) 5. The precipitation occurs again
(precipitation) 30-85 cm(12-33 in) per year
Rain, snow and dew
Most of the precipitation is rain during the summer In the summer, 20 hours of sunlight a day due to the earth’s tilt of axis
In the winter, remains dark for 20 hours
In the northern hemisphere which is tilted away from the sun in the winter and tilted towards the sun in the summer
Makes winters dark and cold • Young and poor in nutrients
• Thin soil because of the cold temperatures
• Soil development is restricted because it is hard for the plants to use the soil’s nutrients due to the weather
• Also because of the climate leaves and moss stay on the ground for a long time which makes it harder for them to organically contribute to the soil
• Soil is acidic due to the falling pine needles
• High concentration of soil organisms compared to tropical rainforests
• Forest floor only has mosses and lichens growing on it because of the coldness
• In clearings and boreal deciduous trees herbs and berries are also growing on the floor
• Podzolization occurs as a result of the acid soil solution produced under needle leaf trees
• Main soil order is spodosol • Winter, spring, summer, fall
• Main seasons are winter and summer
• Spring and fall are so short they barely exist
• Summer is 50-100 days (days without frost)
• Winter is 6-7 months out of the year
• Winter: temperature range is -65 to 30 degrees F, very cold winters with lots of snow
• Summer: temperature range is 20 to 70 degrees F, warm, rainy and humid, short only 50-100 days of frost free days (summer), most precipitation happens in summer (rain)
• Fall is the absolute shortest, and spring only happens very quickly for animals to come out of hibernation, flowers to grow and frozen ponds to melt • World’s largest terrestrial biome
• Found in high northern latitudes between tundra and temperate forests
• Countries: Russia, Mongolia, Norway, Sweden, Iceland, Finland, US and Canada Red fur with white tip tail
Sly and intelligent
Adapts well to the climate The species is not endangered
Purposely shot by farmers because they eat farm animals
Females reproduce in the spring, 4-10 pups every time
Most survive, but some die while being taught to hunt with their father
Only live to be 2 or 3 in the wild Effect:
Endanger animals
Lose animals' homes
Create a colder climate Decreasing the Threat:
Firefighters try to get there and stop the fire from spreading as fast as possible Precipitation Sunlight Soil Seasons Special Info Dispersion Limiting Factors Density Independent Factor:
Blizzards-a lot of snow that make it hard for red foxes to get around
Does not matter how big the population is Density Dependent Factors:
Live stock population- the more foxes there are the more farm animals will be eaten Population Dynamics Competition with other foxes for already scarce food; death of starvation Drawbacks:
Fires get rid of bacteria
The water the firemen use can kill animals in trees Importance Provides water for the whole ecosystem
Provides water to support communities within the biome
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