science biome project
Post on 18-Dec-2014
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TEMPERATE RAINFOREST
Jenny L
ABIOTIC FACTORS Sunlight Precipitation Climate/Temperature Water Soil Clouds
COMMON PLANTS & ANIMALS Big coniferous trees
Douglas fir Western red cedar Mountain hemlock Western hemlock Sitka spruce Lodgepole pine
Deciduous trees in warmer spots Big-leaf maple
Mosses Lichens Stinging Nettle Fireweed Salmonberry
Deer Bears Coyotes Slugs Birds Elk Fish Squirrels Chipmunks Wolves Foxes Snakes Frogs
CLIMATE
Four distinct seasons with a distinct winter
Temperature rarely drops below freezing (0°C)
Usually does not exceed 27°C in the summer
Average precipitation is 200 cm, depending on the temperature
WORLD DISTRIBUTION
Along the northwestern coast of North America from Northern California through Southern Alaska
Southern Chile, New Zealand, Australia, etc
BIOACCUMULATION Climate change Pollution Alien species (invasive) Humans
INTRUSIVE SPECIES Deer in the Haida Gwaii archipelago
Affect the undergrowth and threat the regeneration of cedar
White Pine Blister (Fungus) targets coniferous tree seedlings, and therefore has altered forest structure severely.
Rats and raccoons, the introduced predators They hunt the indigenous birds called the
“Ancient Murrelet” at the birds’ nesting sites. Invasive Plants:
Himilayan Blackberry English Ivy Scotch Broom
They can spread easily and are capable of dominating indigenous plants of the biome
ENERGY FLOW Food chain
SYMBIOSIS
Bees pollinating flowers- Mutualism
Fungus and algae- Mutualism Provides vitamins to the
fungi, and the fungi protects it from drying
An opossum dens with a woodchuck for warmth- Commensalism The woodchuck is not
helped or hurt
SUCCESSION Primary succession (starts with bare rock exposed by
geologic activity) Rock -> Lichen -> Moss -> Grass -> Shrub -> Trees -> Oak
Hickory Forest Secondary succession (starts with soil from which
previous community has been removed) Grass -> Shrub -> Trees -> Oak Hickory Forest
PREDATOR-PREY
Snake-Squirrels/Chipmunks
Bear-Fish Raccoon-Squirrel Cougar-Deer/Elk Trout-Water strider Raven-Pacific tree frog
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