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food web

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by

Lori Drawetz

on 21 May 2010

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Transcript of food web

Biome Canadian Boreal Forest Abiotic Factors
Owl (consumer)








Snake (consumer)




Mouse (consumer)




Insect (decomposer)



Eagle (consumer) Squirrel (consumer) Toad (consumer) Fox (consumer) coyote (consumer) Sun (energy scorce) green plants (producers) Boreal Forest Food Web Red Squirrel Adaptations Squirrels can growl, chirp and even rattle when they are threatened. This warning noise not only helps the squirrel to survive, but warns the other animals of the forest of impending danger. Their enemies include coyotes, red foxes, lynx, northern goshawk, great horned owls and martens. They are fast climbers and can get away from their enemies quickly by escaping up trees. A squirrel's main adaptation for survival is their sense of smell. They can smell nuts that are covered by over 1 metre of snow and then they can dig through that snow to find their hidden food. They also like to eat insects, tree buds, pine and spruce cones, fungi, berries and fruit. They do not hibernate, but often stay in their den in trees during very cold days. Their thickened fur helps them to stay warm when they are looking for food during the winter months. cgfgbf Habitat Description Home Tracks Red squirrels are rodents. Red squirrels
are dark red on their back and white
on their stomach. In the summer their coat becomes darker. Their body is normally
20 cm long and their tail is 18 cm long.
Red squirrel paw prints have 4
toes on the front paws and 5 toes
on their hind legs. Squirrels prints are normally found between trees
and near holes where cones might be buried. If you see an almost diamond shaped print on the ground, it may be a squirrel's footprint. Squirrels live in dens found in the holes of trees. Before winter comes, they line their nest with shredded bark and other soft warm material to help to keep them warm during winter. Some may use underground shelters made inside piles of cones and needles from coniferous trees. Biotic Factors Plants Animals red maple
balsam fir
jack pine
red pine
paper birch
eastern white pine
black ash
balsam poplar
tamarack
large toothed aspen
white spruce
black spruce
trembling aspen
eastern white cedar
pin cherry
choke cherry
wild red raspberry
pussy willow moose
white tailed deer
caribou
gray wolf
red squirrel
coyote
red fox
bobcat
lynx
black bear
snowshoe hare
raccoon
porcupine
beaver
northern river otter
muscrat
fisher
ermine
mink
chipmunk
dear mouse
insects Precipitation
between 50 to 100 centimetres of rain per year
cold winters with deep snow Water
many ponds and bogs Growing season
120 days per year Soil
highly acidic from needles dropping from coniferous trees
made from glacier deposits
peat soil in bogs and wetland areas Rocks and Minerals
glaciel deposits includes gravel, sand, shale and numerous sediments
much is metamorphic gneiss
scraped by glaciers long ago Welcome to the
Boreal Forest
Sources Switcheroozoo.com
redsquirrel. info/facts
cdli.ca
bc adventures.com
Tyson's photography By: Tyson Drawetz Fungi( decomposer) This is the York Region Forest.
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